Trial Outcomes & Findings for Methadone in Pediatric Anesthesiology II (NCT NCT01990573)

NCT ID: NCT01990573

Last Updated: 2020-01-28

Results Overview

Measure of overall morphine consumption

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

51 participants

Primary outcome timeframe

6 days

Results posted on

2020-01-28

Participant Flow

53 signed consents however, 2 participants withdrew prior to randomization: 1 per family request 1 unable to complete

Participant milestones

Participant milestones
Measure
Methadone HCl 0.3 mg/kg
0.3mg/kg IV methadone HCl 0.3mg/kg IV methadone HCl: Group I will receive 0.3mg/kg IV methadone HCl
Methadone HCl 0.4 mg/kg
0.4mg/kg IV methadon HCl 0.4mg/kg IV methadon HCl: Group II will receive 0.4mg/kg IV methadone HCl.
Control Group
control no methadone, standard of care opioids. control no methadone: The control group will not receive methadone.
Overall Study
STARTED
20
14
17
Overall Study
COMPLETED
20
14
16
Overall Study
NOT COMPLETED
0
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Methadone HCl 0.3 mg/kg
0.3mg/kg IV methadone HCl 0.3mg/kg IV methadone HCl: Group I will receive 0.3mg/kg IV methadone HCl
Methadone HCl 0.4 mg/kg
0.4mg/kg IV methadon HCl 0.4mg/kg IV methadon HCl: Group II will receive 0.4mg/kg IV methadone HCl.
Control Group
control no methadone, standard of care opioids. control no methadone: The control group will not receive methadone.
Overall Study
Physician Decision
0
0
1

Baseline Characteristics

Methadone in Pediatric Anesthesiology II

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Methadone 0.3 mg/kg
n=20 Participants
0.3mg/kg IV methadone 0.3mg/kg IV methadone : Group I will receive 0.3mg/kg IV methadone
Methadone 0.4 mg/kg
n=14 Participants
0.4mg/kg IV methadone 0.4mg/kg IV methadone: Group II will receive 0.4mg/kg IV methadone .
Control Group
n=17 Participants
control no methadone, standard of care opioids. control no methadone: The control group will not receive methadone.
Total
n=51 Participants
Total of all reporting groups
Age, Continuous
13.7 Years
STANDARD_DEVIATION 1.5 • n=5 Participants
14.8 Years
STANDARD_DEVIATION 1.9 • n=7 Participants
14.5 Years
STANDARD_DEVIATION 1.9 • n=5 Participants
14.3 Years
STANDARD_DEVIATION 1.8 • n=4 Participants
Sex: Female, Male
Female
14 Participants
n=5 Participants
11 Participants
n=7 Participants
10 Participants
n=5 Participants
35 Participants
n=4 Participants
Sex: Female, Male
Male
6 Participants
n=5 Participants
3 Participants
n=7 Participants
7 Participants
n=5 Participants
16 Participants
n=4 Participants
Race/Ethnicity, Customized
Caucasian
18 Participants
n=5 Participants
12 Participants
n=7 Participants
14 Participants
n=5 Participants
44 Participants
n=4 Participants
Race/Ethnicity, Customized
Other
2 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
7 Participants
n=4 Participants
Region of Enrollment
United States
20 participants
n=5 Participants
14 participants
n=7 Participants
17 participants
n=5 Participants
51 participants
n=4 Participants
American Society of Anesthesiologists (ASA) Physical Satus
ASA 1 -A normal healthy patient
16 Participants
n=5 Participants
6 Participants
n=7 Participants
6 Participants
n=5 Participants
28 Participants
n=4 Participants
American Society of Anesthesiologists (ASA) Physical Satus
ASA 2 - A patient with mild systemic disease
4 Participants
n=5 Participants
8 Participants
n=7 Participants
11 Participants
n=5 Participants
23 Participants
n=4 Participants
Pre-operative pain score
1.6 units on a scale
STANDARD_DEVIATION 2.1 • n=5 Participants
.6 units on a scale
STANDARD_DEVIATION 1.2 • n=7 Participants
1.9 units on a scale
STANDARD_DEVIATION 3.1 • n=5 Participants
1.4 units on a scale
STANDARD_DEVIATION 2.3 • n=4 Participants
Expected Post-operative Pain Score
7.9 0-10 units on a Visual Analog scale
STANDARD_DEVIATION 2.1 • n=5 Participants
6.9 0-10 units on a Visual Analog scale
STANDARD_DEVIATION 2.0 • n=7 Participants
7.5 0-10 units on a Visual Analog scale
STANDARD_DEVIATION 1.9 • n=5 Participants
7.2 0-10 units on a Visual Analog scale
STANDARD_DEVIATION 2.0 • n=4 Participants
BMI
21.6 kg/m^2 scale
STANDARD_DEVIATION 3.8 • n=5 Participants
21.3 kg/m^2 scale
STANDARD_DEVIATION 2.4 • n=7 Participants
22.4 kg/m^2 scale
STANDARD_DEVIATION 4.8 • n=5 Participants
21.7 kg/m^2 scale
STANDARD_DEVIATION 3.8 • n=4 Participants

PRIMARY outcome

Timeframe: 6 days

Measure of overall morphine consumption

Outcome measures

Outcome measures
Measure
Methadone HCl 0.3 mg/kg
n=20 Participants
0.3mg/kg IV methadone HCl 0.3mg/kg IV methadone HCl: Group I will receive 0.3mg/kg IV methadone HCl
Methadone HCl 0.4 mg/kg
n=14 Participants
0.4mg/kg IV methadon HCl 0.4mg/kg IV methadon HCl: Group II will receive 0.4mg/kg IV methadone HCl.
Control Group
n=16 Participants
control no methadone, standard of care opioids. control no methadone: The control group will not receive methadone.
Total Opioid Consumption (Morphine Equivalent)
2.22 mg/kg
Standard Deviation .84
2.37 mg/kg
Standard Deviation .86
3.28 mg/kg
Standard Deviation .93

PRIMARY outcome

Timeframe: 6 days

Assessments are made in the postoperative period by a trained member of the research team blinded to intraoperative use of methadone. These will be conducted on each post-operative day until discharge or post op day 6, whichever comes first. Pain intensity is assessed using the numeric pain score (0-10) scale employed by the inpatient nursing staff and previously validated .

Outcome measures

Outcome measures
Measure
Methadone HCl 0.3 mg/kg
n=20 Participants
0.3mg/kg IV methadone HCl 0.3mg/kg IV methadone HCl: Group I will receive 0.3mg/kg IV methadone HCl
Methadone HCl 0.4 mg/kg
n=14 Participants
0.4mg/kg IV methadon HCl 0.4mg/kg IV methadon HCl: Group II will receive 0.4mg/kg IV methadone HCl.
Control Group
n=16 Participants
control no methadone, standard of care opioids. control no methadone: The control group will not receive methadone.
Pain Scores
4.7 score on a scale
Standard Deviation 2.4
4.6 score on a scale
Standard Deviation 2.9
4.5 score on a scale
Standard Deviation 2.4

SECONDARY outcome

Timeframe: 96 hours

Population: Methadone clearance was only measured in the two groups that received methadone

Cmax is the maximum (or peak) serum concentration that a drug achieves in a specified compartment or test area of the body after the drug has been administrated and before the administration of a second dose.

Outcome measures

Outcome measures
Measure
Methadone HCl 0.3 mg/kg
n=20 Participants
0.3mg/kg IV methadone HCl 0.3mg/kg IV methadone HCl: Group I will receive 0.3mg/kg IV methadone HCl
Methadone HCl 0.4 mg/kg
n=14 Participants
0.4mg/kg IV methadon HCl 0.4mg/kg IV methadon HCl: Group II will receive 0.4mg/kg IV methadone HCl.
Control Group
control no methadone, standard of care opioids. control no methadone: The control group will not receive methadone.
Cmax of R and S Methadone
R- Methadone
97 ng/ml
Standard Deviation 37
175 ng/ml
Standard Deviation 93
Cmax of R and S Methadone
S- Methadone
127 ng/ml
Standard Deviation 43
226 ng/ml
Standard Deviation 113

Adverse Events

Methadone HCl 0.3 mg/kg

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Methadone HCl 0.4 mg/kg

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Control Group

Serious events: 0 serious events
Other events: 8 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Methadone HCl 0.3 mg/kg
n=20 participants at risk
0.3mg/kg IV methadone HCl 0.3mg/kg IV methadone HCl: Group I will receive 0.3mg/kg IV methadone HCl
Methadone HCl 0.4 mg/kg
n=14 participants at risk
0.4mg/kg IV methadon HCl 0.4mg/kg IV methadon HCl: Group II will receive 0.4mg/kg IV methadone HCl.
Control Group
n=16 participants at risk
control no methadone, standard of care opioids. control no methadone: The control group will not receive methadone.
Surgical and medical procedures
Excessive sedation
5.0%
1/20 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
0.00%
0/14 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
6.2%
1/16 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
Respiratory, thoracic and mediastinal disorders
Respiratory Depression
20.0%
4/20 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
42.9%
6/14 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
43.8%
7/16 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
Gastrointestinal disorders
Ileus
5.0%
1/20 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
0.00%
0/14 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.
0.00%
0/16 • Up to 6 days post-preoperative.
Patients were assessed each day, in the morning, for events.

Additional Information

Dr. Anshuman Sharma

Washington University School of Medicine

Phone: 314-457-3147

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place