Trial Outcomes & Findings for Pharmacokinetic Evaluation of Intranasal Nalmefene Using Three Dosing Regimens (NCT NCT05219669)

NCT ID: NCT05219669

Last Updated: 2024-08-05

Results Overview

Maximum concentration of plasma nalmefene comparing 1 dose of IN in one nostril to 2 doses of IN in 1 nostril to 1 dose of IN in each nostril

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

24 participants

Primary outcome timeframe

48 hours

Results posted on

2024-08-05

Participant Flow

Participant milestones

Participant milestones
Measure
Sequence 1
"Sequence 1" represents subjects taking * Treatment "A" in period 1 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 2 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "C" in period 3 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\])
Sequence 2
"Sequence 2" represents subjects taking * Treatment "B" in period 1 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "C" in period 2 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "A" in period 3 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\])
Sequence 3
"Sequence 3" represents subjects taking * Treatment "C" in period 1 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "A" in period 2 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 3 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\])
Sequence 4
"Sequence 4" represents subjects taking * Treatment "A" in period 1 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "C" in period 2 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 3 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\])
Sequence 5
"Sequence 5" represents subjects taking * Treatment "B" in period 1 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "A" in period 2 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "C" in period 3 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\])
Sequence 6
"Sequence 6" represents subjects taking * Treatment "C" in period 1 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 2 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "A" in period 3 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\])
Period 1 (1 Day)
STARTED
4
4
4
4
4
4
Period 1 (1 Day)
COMPLETED
4
4
3
4
4
4
Period 1 (1 Day)
NOT COMPLETED
0
0
1
0
0
0
Washout (6 Days)
STARTED
4
4
3
4
4
4
Washout (6 Days)
COMPLETED
4
4
3
4
4
4
Washout (6 Days)
NOT COMPLETED
0
0
0
0
0
0
Period 2 (1 Day)
STARTED
4
4
3
4
4
4
Period 2 (1 Day)
COMPLETED
4
4
3
4
4
4
Period 2 (1 Day)
NOT COMPLETED
0
0
0
0
0
0
Period 3 (1 Day)
STARTED
4
4
3
4
4
4
Period 3 (1 Day)
COMPLETED
4
4
3
4
4
4
Period 3 (1 Day)
NOT COMPLETED
0
0
0
0
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Sequence 1
"Sequence 1" represents subjects taking * Treatment "A" in period 1 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 2 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "C" in period 3 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\])
Sequence 2
"Sequence 2" represents subjects taking * Treatment "B" in period 1 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "C" in period 2 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "A" in period 3 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\])
Sequence 3
"Sequence 3" represents subjects taking * Treatment "C" in period 1 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "A" in period 2 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 3 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\])
Sequence 4
"Sequence 4" represents subjects taking * Treatment "A" in period 1 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "C" in period 2 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 3 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\])
Sequence 5
"Sequence 5" represents subjects taking * Treatment "B" in period 1 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "A" in period 2 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "C" in period 3 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\])
Sequence 6
"Sequence 6" represents subjects taking * Treatment "C" in period 1 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 2 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "A" in period 3 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\])
Period 1 (1 Day)
Withdrawal by Subject
0
0
1
0
0
0

Baseline Characteristics

Pharmacokinetic Evaluation of Intranasal Nalmefene Using Three Dosing Regimens

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Sequence 1
n=4 Participants
"Sequence 1" represents subjects taking * Treatment "A" in period 1 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 2 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "C" in period 3 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\])
Sequence 2
n=4 Participants
"Sequence 2" represents subjects taking * Treatment "B" in period 1 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "C" in period 2 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "A" in period 3 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\])
Sequence 3
n=4 Participants
"Sequence 3" represents subjects taking * Treatment "C" in period 1 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "A" in period 2 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 3 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\])
Sequence 4
n=4 Participants
"Sequence 4" represents subjects taking * Treatment "A" in period 1 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "C" in period 2 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 3 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\])
Sequence 5
n=4 Participants
"Sequence 5" represents subjects taking * Treatment "B" in period 1 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "A" in period 2 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\]) * Treatment "C" in period 3 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\])
Sequence 6
n=4 Participants
"Sequence 6" represents subjects taking * Treatment "C" in period 1 (6 mg IN nalmefene dose \[two 0.1 mL sprays of a 30 mg/mL solution in one nostril\]) * Treatment "B" in period 2 (6 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in each nostril\]) * Treatment "A" in period 3 (3 mg IN nalmefene dose \[one 0.1 mL spray of a 30 mg/mL solution in one nostril\])
Total
n=24 Participants
Total of all reporting groups
Age, Continuous
27.8 years
STANDARD_DEVIATION 5.91 • n=5 Participants
32.0 years
STANDARD_DEVIATION 9.20 • n=7 Participants
35.0 years
STANDARD_DEVIATION 8.29 • n=5 Participants
37.5 years
STANDARD_DEVIATION 12.40 • n=4 Participants
28.0 years
STANDARD_DEVIATION 6.73 • n=21 Participants
27.0 years
STANDARD_DEVIATION 6.06 • n=8 Participants
31.2 years
STANDARD_DEVIATION 8.47 • n=8 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
1 Participants
n=4 Participants
3 Participants
n=21 Participants
3 Participants
n=8 Participants
15 Participants
n=8 Participants
Sex: Female, Male
Male
2 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
3 Participants
n=4 Participants
1 Participants
n=21 Participants
1 Participants
n=8 Participants
9 Participants
n=8 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 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
0 Participants
n=8 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
1 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
2 Participants
n=8 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 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
0 Participants
n=8 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
3 Participants
n=21 Participants
2 Participants
n=8 Participants
10 Participants
n=8 Participants
Race (NIH/OMB)
White
2 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
2 Participants
n=4 Participants
1 Participants
n=21 Participants
2 Participants
n=8 Participants
12 Participants
n=8 Participants
Race (NIH/OMB)
More than one race
0 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
0 Participants
n=8 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 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
0 Participants
n=8 Participants
Region of Enrollment
United States
4 participants
n=5 Participants
4 participants
n=7 Participants
4 participants
n=5 Participants
4 participants
n=4 Participants
4 participants
n=21 Participants
4 participants
n=8 Participants
24 participants
n=8 Participants
BMI
26.28 kg/m2
STANDARD_DEVIATION 4.853 • n=5 Participants
25.80 kg/m2
STANDARD_DEVIATION 2.226 • n=7 Participants
24.30 kg/m2
STANDARD_DEVIATION 2.426 • n=5 Participants
23.18 kg/m2
STANDARD_DEVIATION 4.921 • n=4 Participants
23.00 kg/m2
STANDARD_DEVIATION 2.362 • n=21 Participants
24.58 kg/m2
STANDARD_DEVIATION 3.222 • n=8 Participants
24.52 kg/m2
STANDARD_DEVIATION 3.357 • n=8 Participants

PRIMARY outcome

Timeframe: 48 hours

Maximum concentration of plasma nalmefene comparing 1 dose of IN in one nostril to 2 doses of IN in 1 nostril to 1 dose of IN in each nostril

Outcome measures

Outcome measures
Measure
Intranasal Nalmefene 1 Spray in 1 Nostril
n=23 Participants
3 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 2 Sprays in 1 Nostril
n=24 Participants
6 mg IN Nalmefene Hydrochloride dose (two 0.1 mL sprays of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 1 Spray in Each Nostril
n=23 Participants
6 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in each nostril)
Maximum Plasma Concentration (Cmax)
10.8 ng/ml
Standard Deviation 4.87
18.9 ng/ml
Standard Deviation 11.2
22.2 ng/ml
Standard Deviation 13.5

PRIMARY outcome

Timeframe: 48 hours

Time to maximum concentration of plasma nalmefene comparing 1 dose of IN in one nostril to 2 doses of IN in 1 nostril to 1 dose of IN in each nostril

Outcome measures

Outcome measures
Measure
Intranasal Nalmefene 1 Spray in 1 Nostril
n=23 Participants
3 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 2 Sprays in 1 Nostril
n=24 Participants
6 mg IN Nalmefene Hydrochloride dose (two 0.1 mL sprays of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 1 Spray in Each Nostril
n=23 Participants
6 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in each nostril)
Time to Maximum Plasma Concentration (Tmax)
0.267 hours
Interval 0.167 to 2.03
0.25 hours
Interval 0.117 to 3.0
0.25 hours
Interval 0.117 to 2.03

PRIMARY outcome

Timeframe: 48 hours

Area under the curve of plasma nalmefene comparing 1 dose of IN in one nostril to 2 doses of IN in 1 nostril to 1 dose of IN in each nostril

Outcome measures

Outcome measures
Measure
Intranasal Nalmefene 1 Spray in 1 Nostril
n=23 Participants
3 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 2 Sprays in 1 Nostril
n=24 Participants
6 mg IN Nalmefene Hydrochloride dose (two 0.1 mL sprays of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 1 Spray in Each Nostril
n=23 Participants
6 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in each nostril)
Area Under the Curve (AUC)
46.8 AUCinf (ng·h/mL)
Standard Deviation 10.1
85.7 AUCinf (ng·h/mL)
Standard Deviation 18.7
89.5 AUCinf (ng·h/mL)
Standard Deviation 17.0

PRIMARY outcome

Timeframe: 48 hours

Half life of plasma nalmefene comparing 1 dose of IN in one nostril to 2 doses of IN in 1 nostril to 1 dose of IN in each nostril

Outcome measures

Outcome measures
Measure
Intranasal Nalmefene 1 Spray in 1 Nostril
n=23 Participants
3 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 2 Sprays in 1 Nostril
n=24 Participants
6 mg IN Nalmefene Hydrochloride dose (two 0.1 mL sprays of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 1 Spray in Each Nostril
n=23 Participants
6 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in each nostril)
Half-life (t1/2)
11.4 hour
Standard Deviation 2.51
11.3 hour
Standard Deviation 1.86
11.3 hour
Standard Deviation 1.87

Adverse Events

Intranasal Nalmefene 1 Spray in 1 Nostril

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

Intranasal Nalmefene 2 Sprays in 1 Nostril

Serious events: 0 serious events
Other events: 16 other events
Deaths: 0 deaths

Intranasal Nalmefene 1 Spray in Each Nostril

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Intranasal Nalmefene 1 Spray in 1 Nostril
n=23 participants at risk
3 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 2 Sprays in 1 Nostril
n=24 participants at risk
6 mg IN Nalmefene Hydrochloride dose (two 0.1 mL sprays of a 30 mg/mL solution in one nostril)
Intranasal Nalmefene 1 Spray in Each Nostril
n=23 participants at risk
6 mg IN Nalmefene Hydrochloride dose (one 0.1 mL spray of a 30 mg/mL solution in each nostril)
Respiratory, thoracic and mediastinal disorders
Rhinalgia
13.0%
3/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
25.0%
6/24 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
8.7%
2/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
Respiratory, thoracic and mediastinal disorders
Nasal Congestion
4.3%
1/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
16.7%
4/24 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
4.3%
1/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
Respiratory, thoracic and mediastinal disorders
Nasal discomfort
4.3%
1/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
12.5%
3/24 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
13.0%
3/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
Gastrointestinal disorders
Nausea
4.3%
1/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
4.2%
1/24 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
21.7%
5/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
Nervous system disorders
Headache
13.0%
3/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
0.00%
0/24 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
4.3%
1/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
General disorders
Vessel puncture site pain
0.00%
0/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
8.3%
2/24 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.
0.00%
0/23 • Subjects were collected AE from baseline to day 15 with a +3 to 5 day follow-up. During the 15 days in clinic they received one of the three doing regimens on day 1, 7 and 13.

Additional Information

Clinical Director

Opiant Pharmaceuticals

Phone: 18043791090

Results disclosure agreements

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