Trial Outcomes & Findings for Safety and Efficacy of Dexmedetomidine (DEX) for Sedation of Subjects ≥1 Month to <17 Years Undergoing MRI Scans (NCT NCT04237792)

NCT ID: NCT04237792

Last Updated: 2022-11-16

Results Overview

Percentage of participants who did not require PRO to complete MRI scan in the combined age cohorts are reported in this outcome measure.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

128 participants

Primary outcome timeframe

Up to maximum of 3 hours during MRI scan on Day 1

Results posted on

2022-11-16

Participant Flow

Total 141 participants were screened. Out of 141 participants, only 128 participants who met eligibility criteria signed the informed consent document, were enrolled and randomized. Out of 128 randomized participants, 6 participants were not treated.

Pediatric participants were administered with dexmedetomidine (DEX), and with propofol (PRO) as needed, for procedural sedation for magnetic resonance imaging (MRI) scans.

Participant milestones

Participant milestones
Measure
Low Dose: Age >=1 Month to <2 Years
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 0.5 microgram per kilogram (mcg/kg) over 10 minutes as intravenous (IV) infusion followed by continuous maintenance dose of DEX 0.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per physical investigator (PI) clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Middle Dose: Age >=1 Month to <2 Years
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
High Dose: Age >=1 Month to <2 Years
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Low Dose: Age >=2 Years to <17 Years
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 0.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Middle Dose: Age >=2 Years to <17 Years
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
High Dose: Age >=2 Years to <17 Years
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Treatment (Day 1)
STARTED
21
22
20
23
21
21
Treatment (Day 1)
Treated With DEX
20
21
18
22
21
20
Treatment (Day 1)
COMPLETED
19
21
17
22
20
18
Treatment (Day 1)
NOT COMPLETED
2
1
3
1
1
3
MRI Scan (Day 1)
STARTED
20
21
18
22
21
20
MRI Scan (Day 1)
COMPLETED
20
21
18
22
21
20
MRI Scan (Day 1)
NOT COMPLETED
0
0
0
0
0
0
Post MRI Scan Recovery (Day 1)
STARTED
20
21
18
22
21
20
Post MRI Scan Recovery (Day 1)
COMPLETED
20
21
18
22
21
20
Post MRI Scan Recovery (Day 1)
NOT COMPLETED
0
0
0
0
0
0
Follow-up (FU) (Day 2)
STARTED
20
21
18
22
21
20
Follow-up (FU) (Day 2)
COMPLETED
20
21
18
22
21
20
Follow-up (FU) (Day 2)
NOT COMPLETED
0
0
0
0
0
0
Long Term FU (Any Day From Day 29 to 32)
STARTED
20
21
18
22
21
20
Long Term FU (Any Day From Day 29 to 32)
COMPLETED
20
21
18
22
21
20
Long Term FU (Any Day From Day 29 to 32)
NOT COMPLETED
0
0
0
0
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Low Dose: Age >=1 Month to <2 Years
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 0.5 microgram per kilogram (mcg/kg) over 10 minutes as intravenous (IV) infusion followed by continuous maintenance dose of DEX 0.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per physical investigator (PI) clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Middle Dose: Age >=1 Month to <2 Years
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
High Dose: Age >=1 Month to <2 Years
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Low Dose: Age >=2 Years to <17 Years
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 0.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Middle Dose: Age >=2 Years to <17 Years
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
High Dose: Age >=2 Years to <17 Years
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Treatment (Day 1)
Adverse Event
1
0
0
0
1
1
Treatment (Day 1)
Other
0
0
1
0
0
1
Treatment (Day 1)
Not treated
1
1
2
1
0
1

Baseline Characteristics

Safety and Efficacy of Dexmedetomidine (DEX) for Sedation of Subjects ≥1 Month to <17 Years Undergoing MRI Scans

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Low Dose: Age >=1 Month to <2 Years
n=20 Participants
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 0.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Middle Dose: Age >=1 Month to <2 Years
n=21 Participants
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
High Dose: Age >=1 Month to <2 Years
n=18 Participants
Day 1: Participants aged \>=1 month to \<2 years, were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Low Dose: Age >=2 Years to <17 Years
n=22 Participants
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 0.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Middle Dose: Age >=2 Years to <17 Years
n=21 Participants
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
High Dose: Age >=2 Years to <17 Years
n=20 Participants
Day 1: Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes as IV infusion followed by continuous maintenance dose of DEX 1.5 mcg/kg/hour IV. If an adequate level of sedation was not achieved, participants were co-administered with PRO IV per PI clinical judgment. MRI scan started on achieving an adequate sedation level. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours. Treatment PRO first bolus strength would be 500 mcg/kg and then maintenance infusion at 50 mcg/kg/min. Participants were monitored for a minimum of 1 hour after completion of MRI scan. Day 2: Participants were followed up after 24 hours (+/- 2 hours) post discontinuation of DEX. Participants had a long-term follow-up contact via phone call at 28 to 31 days post last administration of study drug.
Total
n=122 Participants
Total of all reporting groups
Age, Continuous
0.99 Years
STANDARD_DEVIATION 0.612 • n=5 Participants
0.90 Years
STANDARD_DEVIATION 0.488 • n=7 Participants
0.96 Years
STANDARD_DEVIATION 0.384 • n=5 Participants
6.68 Years
STANDARD_DEVIATION 2.922 • n=4 Participants
7.40 Years
STANDARD_DEVIATION 3.230 • n=21 Participants
6.63 Years
STANDARD_DEVIATION 3.277 • n=8 Participants
4.02 Years
STANDARD_DEVIATION 3.743 • n=8 Participants
Sex: Female, Male
Female
12 Participants
n=5 Participants
9 Participants
n=7 Participants
8 Participants
n=5 Participants
11 Participants
n=4 Participants
10 Participants
n=21 Participants
9 Participants
n=8 Participants
59 Participants
n=8 Participants
Sex: Female, Male
Male
8 Participants
n=5 Participants
12 Participants
n=7 Participants
10 Participants
n=5 Participants
11 Participants
n=4 Participants
11 Participants
n=21 Participants
11 Participants
n=8 Participants
63 Participants
n=8 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=5 Participants
2 Participants
n=7 Participants
7 Participants
n=5 Participants
0 Participants
n=4 Participants
3 Participants
n=21 Participants
3 Participants
n=8 Participants
19 Participants
n=8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
15 Participants
n=5 Participants
18 Participants
n=7 Participants
11 Participants
n=5 Participants
22 Participants
n=4 Participants
17 Participants
n=21 Participants
17 Participants
n=8 Participants
100 Participants
n=8 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
1 Participants
n=21 Participants
0 Participants
n=8 Participants
3 Participants
n=8 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
2 Participants
n=8 Participants
Race (NIH/OMB)
Asian
3 Participants
n=5 Participants
8 Participants
n=7 Participants
4 Participants
n=5 Participants
11 Participants
n=4 Participants
8 Participants
n=21 Participants
7 Participants
n=8 Participants
41 Participants
n=8 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
1 Participants
n=8 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
0 Participants
n=4 Participants
2 Participants
n=21 Participants
2 Participants
n=8 Participants
8 Participants
n=8 Participants
Race (NIH/OMB)
White
10 Participants
n=5 Participants
8 Participants
n=7 Participants
11 Participants
n=5 Participants
10 Participants
n=4 Participants
9 Participants
n=21 Participants
9 Participants
n=8 Participants
57 Participants
n=8 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
1 Participants
n=21 Participants
1 Participants
n=8 Participants
4 Participants
n=8 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
0 Participants
n=4 Participants
1 Participants
n=21 Participants
1 Participants
n=8 Participants
9 Participants
n=8 Participants

PRIMARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX.

Percentage of participants who did not require PRO to complete MRI scan in the combined age cohorts are reported in this outcome measure.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=38 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Percentage of Participants at the DEX High Dose Versus Low Dose in the Combined Age Cohorts Who Did Not Require Concomitant PRO to Complete MRI
63.2 Percentage of participants
Interval 46.0 to 78.0
14.3 Percentage of participants
Interval 5.0 to 29.0

SECONDARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX.

Percentage of participants who did not require PRO to complete MRI scan in each age cohort are reported in this outcome measure.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=18 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=20 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=22 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Percentage of Participants at the DEX High Dose Versus Low Dose in Each Age Cohort Who Did Not Require Concomitant PRO to Complete MRI
50.0 Percentage of participants
Interval 26.0 to 74.0
15.0 Percentage of participants
Interval 3.0 to 38.0
75.0 Percentage of participants
Interval 51.0 to 91.0
13.6 Percentage of participants
Interval 3.0 to 35.0

SECONDARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX.

Percentage of participants who did not require PRO to complete MRI scan in each age cohort and combined age cohorts are reported in this outcome measure.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=18 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=21 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=21 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=22 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
n=38 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Percentage of Participants at the DEX Middle Dose vs Low Dose and High Dose vs Middle Dose in Each Age Cohort and Combined Age Cohorts Who Did Not Require Concomitant PRO to Complete MRI
50.0 Percentage of participants
9.5 Percentage of participants
15.0 Percentage of participants
75.0 Percentage of participants
61.9 Percentage of participants
13.6 Percentage of participants
63.2 Percentage of participants
35.7 Percentage of participants
14.3 Percentage of participants

SECONDARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX. Here, "Overall Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

In this outcome measure percentage of time for which participant had maintained PSSS score of 2 was reported. PSSS score ranges from 0 to 5, where 0= sedation with abnormal physiologic parameters requiring acute intervention, 1= sedation with normal vital signs, but requiring airway intervention, 2= no movement during procedure, no frown, no verbalization of complaint indicating no pain and anxiety, 3= no movement during procedure but expression of pain and anxiety on face, verbalization of complaint, requiring help positioning, 4= movement during procedure requiring gentle immobilization for positioning, verbalization of some discomfort or stress, but no crying or shouting that expresses stress or objection, 5= movement impeding proceduralist and requiring forceful immobilization, crying or shouting during procedure, but vocalization not required. Higher score indicated less sedation.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=20 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=21 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=18 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=22 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
n=41 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=38 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Percentage of Time at Target Pediatric Sedation State Scale (PSSS) Score of 2 After the Administration of the DEX Loading Dose and During the DEX Maintenance Infusion - By Age Cohort and Combined Age
77.5 Percentage of time
Standard Deviation 15.94
82.5 Percentage of time
Standard Deviation 12.04
87.8 Percentage of time
Standard Deviation 23.93
76.8 Percentage of time
Standard Deviation 18.36
92.2 Percentage of time
Standard Deviation 9.72
94.1 Percentage of time
Standard Deviation 12.22
77.2 Percentage of time
Standard Deviation 17.04
87.2 Percentage of time
Standard Deviation 11.88
91.1 Percentage of time
Standard Deviation 18.71

SECONDARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX.

Participants who did not have PRO administered were censored.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=20 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=21 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=18 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=22 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=21 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=38 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Time From the Start of DEX Loading Dose Infusion to the Time of First PRO Bolus Infusion - By Age Cohort and Combined Age
16.0 Minutes
Interval 15.0 to 21.0
17.0 Minutes
Interval 16.0 to 25.0
62.0 Minutes
Interval 19.0 to
Upper value of 95 % confidence interval (CI) could not be estimated due to less number of participants with event.
16.5 Minutes
Interval 15.0 to 25.0
NA Minutes
Interval 31.0 to
Median and upper value of 95 % CI could not be estimated due to less number of participants with event.
NA Minutes
Interval 72.0 to
Median and upper value of 95 % CI could not be estimated due to less number of participants with event.
16.0 Minutes
Interval 15.0 to 20.0
31.5 Minutes
Interval 17.0 to 64.0
NA Minutes
Interval 45.0 to
Median and upper value of 95 % CI could not be estimated due to less number of participants with event.

SECONDARY outcome

Timeframe: Post MRI scan on Day 1 up to 24 hours

Population: FAS included all randomized participants who received any amount of DEX.

Emergence time: time from the end of the MRI scan to when the participant met a Modified Aldrete score \>=9. Participants who were withdrawn or discharged without reaching a Modified Aldrete score \>=9, were censored, time computed from end of MRI scan to time of the last clinical assessment (vital signs). Zero minute was used as the censored time if no vital signs were taken during the post-MRI recovery period. Modified Aldrete score: validated observational medical scoring system that allowed verbal prompts for the measurement of recovery after anesthesia (post anesthesia) which included items: activity, respiration, circulation, consciousness, and oxygenation. Each item was scored from 0 to 2, higher scores signified better recovery. The scores of each item were summed to obtain a total score of 0 to 10, where higher scores indicated well recovered participant post anesthesia.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=20 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=21 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=18 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=22 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=21 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=38 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Emergence Time - By Age Cohort and Combined Age
30.0 Minutes
Interval 6.0 to 59.0
41.0 Minutes
Interval 34.0 to 54.0
38.0 Minutes
Interval 12.0 to 51.0
35.0 Minutes
Interval 21.0 to 49.0
46.0 Minutes
Interval 25.0 to 64.0
50.0 Minutes
Interval 35.0 to 62.0
35.0 Minutes
Interval 21.0 to 41.0
42.5 Minutes
Interval 35.0 to 52.0
45.5 Minutes
Interval 35.0 to 54.0

SECONDARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=20 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=21 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=18 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=22 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=21 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=20 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
n=42 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=38 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Number of Participants Who Received PRO - By Age Cohort and Combined Age
17 Participants
19 Participants
9 Participants
19 Participants
8 Participants
5 Participants
36 Participants
27 Participants
14 Participants

SECONDARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX. Here, "Overall Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=17 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=19 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=9 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=19 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=8 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=5 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
n=36 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
n=27 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=14 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Total Amount (mcg Per kg) of Concomitant PRO Required to Successfully Complete MRI - By Age Cohort and Combined Age
4012.1 mcg per kg
Standard Deviation 2334.66
4730.3 mcg per kg
Standard Deviation 3398.21
2822.8 mcg per kg
Standard Deviation 1593.84
5559.2 mcg per kg
Standard Deviation 4038.95
5001.9 mcg per kg
Standard Deviation 4093.70
4513.0 mcg per kg
Standard Deviation 4620.56
4828.6 mcg per kg
Standard Deviation 3390.42
4810.7 mcg per kg
Standard Deviation 3538.71
3426.4 mcg per kg
Standard Deviation 2973.00

SECONDARY outcome

Timeframe: Up to maximum of 3 hours during MRI scan on Day 1

Population: FAS included all randomized participants who received any amount of DEX. Here, "Overall Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Outcome measures

Outcome measures
Measure
High Dose: Combined Age
n=17 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=19 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=9 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=19 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=7 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Age >=2 Years to <17 Years
n=4 Participants
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Combined Age
n=36 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour and a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Combined Age
n=26 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour and a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Low Dose: Combined Age
n=13 Participants
Participants aged \>=1 month to \<2 years and \>=2 years to \<17 years were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour respectively. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Body Weight/Time Adjusted Total Amount (Per kg Per Minute) of Concomitant PRO Required to Successfully Complete MRI - By Age Cohort and Combined Age
59.43 mcg per kg per minute
Standard Deviation 18.625
71.38 mcg per kg per minute
Standard Deviation 32.895
47.41 mcg per kg per minute
Standard Deviation 14.454
81.28 mcg per kg per minute
Standard Deviation 38.406
74.70 mcg per kg per minute
Standard Deviation 24.487
76.36 mcg per kg per minute
Standard Deviation 47.656
70.96 mcg per kg per minute
Standard Deviation 32.243
72.28 mcg per kg per minute
Standard Deviation 30.418
56.31 mcg per kg per minute
Standard Deviation 30.007

Adverse Events

Low Dose: Age >=1 Month to <2 Years

Serious events: 0 serious events
Other events: 19 other events
Deaths: 0 deaths

Middle Dose: Age >=1 Month to <2 Years

Serious events: 0 serious events
Other events: 20 other events
Deaths: 0 deaths

High Dose: Age >=1 Month to <2 Years

Serious events: 0 serious events
Other events: 17 other events
Deaths: 0 deaths

Combined Dose: Age >=1 Month to <2 Years

Serious events: 0 serious events
Other events: 56 other events
Deaths: 0 deaths

Low Dose: Age >=2 Years to <17 Years

Serious events: 0 serious events
Other events: 19 other events
Deaths: 0 deaths

Middle Dose: Age >=2 Years to <17 Years

Serious events: 0 serious events
Other events: 19 other events
Deaths: 0 deaths

High Dose: Age >=2 Years to <17 Years

Serious events: 1 serious events
Other events: 19 other events
Deaths: 0 deaths

Combined Dose: Age >=2 Years to <17 Years

Serious events: 1 serious events
Other events: 57 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Low Dose: Age >=1 Month to <2 Years
n=20 participants at risk
Participants aged \>=1 month to \< 2 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=1 Month to <2 Years
n=21 participants at risk
Participants aged \>=1 month to \< 2 years, were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=1 Month to <2 Years
n=18 participants at risk
Participants aged \>=1 month to \< 2 years, were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Combined Dose: Age >=1 Month to <2 Years
n=59 participants at risk
Participants were randomized to receive a loading dose of DEX 0.5 mcg/kg (low dose), 1 mcg/kg (middle dose), and 1.5 mcg/kg (high dose) over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour (low dose), 1 mcg/kg/hour (middle dose), and 1.5 mcg/kg/hour (high dose).
Low Dose: Age >=2 Years to <17 Years
n=22 participants at risk
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=21 participants at risk
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=20 participants at risk
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Combined Dose: Age >=2 Years to <17 Years
n=63 participants at risk
Participants were randomized to receive a loading dose of DEX 0.5 mcg/kg (low dose), 1.2 mcg/kg (middle dose), and 2 mcg/kg (high dose) over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour (low dose), 1 mcg/kg/hour (middle dose), and 1.5 mcg/kg/hour (high dose).
Vascular disorders
Hypertension
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.

Other adverse events

Other adverse events
Measure
Low Dose: Age >=1 Month to <2 Years
n=20 participants at risk
Participants aged \>=1 month to \< 2 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=1 Month to <2 Years
n=21 participants at risk
Participants aged \>=1 month to \< 2 years, were randomized to receive a loading dose of DEX 1 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=1 Month to <2 Years
n=18 participants at risk
Participants aged \>=1 month to \< 2 years, were randomized to receive a loading dose of DEX 1.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Combined Dose: Age >=1 Month to <2 Years
n=59 participants at risk
Participants were randomized to receive a loading dose of DEX 0.5 mcg/kg (low dose), 1 mcg/kg (middle dose), and 1.5 mcg/kg (high dose) over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour (low dose), 1 mcg/kg/hour (middle dose), and 1.5 mcg/kg/hour (high dose).
Low Dose: Age >=2 Years to <17 Years
n=22 participants at risk
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 0.5 mcg/kg over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Middle Dose: Age >=2 Years to <17 Years
n=21 participants at risk
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 1.2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
High Dose: Age >=2 Years to <17 Years
n=20 participants at risk
Participants aged \>=2 years to \<17 years, were randomized to receive a loading dose of DEX 2 mcg/kg over 10 minutes followed by maintenance dose of DEX 1.5 mcg/kg/hour. If adequate sedation was not achieved PRO was co-administered. DEX and PRO (if needed) continued till completion of MRI scan. MRI scan was expected to complete in not more than 3 hours.
Combined Dose: Age >=2 Years to <17 Years
n=63 participants at risk
Participants were randomized to receive a loading dose of DEX 0.5 mcg/kg (low dose), 1.2 mcg/kg (middle dose), and 2 mcg/kg (high dose) over 10 minutes followed by maintenance dose of DEX 0.5 mcg/kg/hour (low dose), 1 mcg/kg/hour (middle dose), and 1.5 mcg/kg/hour (high dose).
Cardiac disorders
Bradycardia
45.0%
9/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
57.1%
12/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
72.2%
13/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
57.6%
34/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
68.2%
15/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
57.1%
12/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
70.0%
14/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
65.1%
41/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Cardiac disorders
Rebound tachycardia
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Cardiac disorders
Sinus arrhythmia
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.6%
1/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.7%
1/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Cardiac disorders
Tachycardia
10.0%
2/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.8%
1/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.1%
3/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.5%
1/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
3.2%
2/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Congenital, familial and genetic disorders
Arnold-Chiari malformation
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Congenital, familial and genetic disorders
Syringomyelia
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Gastrointestinal disorders
Abdominal pain
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.8%
1/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Gastrointestinal disorders
Nausea
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.8%
1/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
3.2%
2/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Gastrointestinal disorders
Vomiting
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.7%
1/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.8%
1/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Infections and infestations
Nasopharyngitis
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.7%
1/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.5%
1/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Injury, poisoning and procedural complications
Anaesthetic complication neurological
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.6%
1/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.7%
1/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.8%
1/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Injury, poisoning and procedural complications
Contusion
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.6%
1/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.7%
1/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Investigations
Blood pressure increased
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.5%
1/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Nervous system disorders
Seizure
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.5%
1/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Psychiatric disorders
Agitation
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Respiratory, thoracic and mediastinal disorders
Bradypnoea
95.0%
19/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
76.2%
16/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
66.7%
12/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
79.7%
47/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
63.6%
14/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
52.4%
11/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
50.0%
10/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
55.6%
35/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Respiratory, thoracic and mediastinal disorders
Hypoxia
15.0%
3/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
14.3%
3/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
10.2%
6/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
13.6%
3/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
6.3%
4/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Respiratory, thoracic and mediastinal disorders
Tachypnoea
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.7%
1/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Skin and subcutaneous tissue disorders
Rash
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.5%
1/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Vascular disorders
Diastolic hypertension
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
14.3%
3/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
16.7%
3/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
11.9%
7/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
9.1%
2/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.8%
3/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Vascular disorders
Diastolic hypotension
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.7%
1/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.8%
1/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Vascular disorders
Hypertension
45.0%
9/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
57.1%
12/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
50.0%
9/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
50.8%
30/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
9.1%
2/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
23.8%
5/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
40.0%
8/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
23.8%
15/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Vascular disorders
Hypotension
45.0%
9/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
28.6%
6/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
16.7%
3/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
30.5%
18/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
18.2%
4/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
23.8%
5/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
15.0%
3/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
19.0%
12/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Vascular disorders
Systolic hypertension
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
14.3%
3/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.6%
1/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
6.8%
4/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
4.5%
1/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
9.5%
2/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
10.0%
2/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
7.9%
5/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
Vascular disorders
Withdrawal hypertension
0.00%
0/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/18 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/59 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/22 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
0.00%
0/21 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
5.0%
1/20 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.
1.6%
1/63 • Day 1 up to maximum of 31 days after last dose of study drug (up to maximum of 32 days)
Same event may appear as both an AE and SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another, or a participant may have experienced both a serious and non-serious event. The safety analysis set consisted of all randomized participants who received any amount of DEX. Safety data was presented by dose level, overall (combined two age cohorts) and within each age cohort.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER