Trial Outcomes & Findings for Efficacy of BNX Sublingual Tablets Versus BNX Sublingual Film for Treatment of Opioid-Dependent Adults (NCT NCT01908842)

NCT ID: NCT01908842

Last Updated: 2017-05-10

Results Overview

Retention rates (number of patients retained) for the primary efficacy endpoints of retention in treatment at Days 3 and 15, which was defined as the number of patients who received treatment on Days 3 and 15.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

759 participants

Primary outcome timeframe

Day 3 and Day 15

Results posted on

2017-05-10

Participant Flow

A total of 759 patients were enrolled. One patient who was randomized did not receive study drug, making the participant flow total 758.

Participant milestones

Participant milestones
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
Days 1-2: BNX sublingual tablets (blinded induction); Days 3 to 14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
Days 1-2: Buprenorphine (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
Induction
STARTED
383
375
Induction
COMPLETED
357
344
Induction
NOT COMPLETED
26
31
Switch to Other BNX Formulation (Day 15)
STARTED
357
344
Switch to Other BNX Formulation (Day 15)
COMPLETED
287
279
Switch to Other BNX Formulation (Day 15)
NOT COMPLETED
70
65
Day 22: Film (Col 1); Tablets (Col 2)
STARTED
287
279
Day 22: Film (Col 1); Tablets (Col 2)
COMPLETED
262
262
Day 22: Film (Col 1); Tablets (Col 2)
NOT COMPLETED
25
17

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Efficacy of BNX Sublingual Tablets Versus BNX Sublingual Film for Treatment of Opioid-Dependent Adults

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=383 Participants
Days 1-2: BNX sublingual tablets (blinded); Days 3-14: BNX sublingual tablets (open-label); Days 15-21: Switch to BNX sublingual film (open-label); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=375 Participants
Days 1-2: Generic buprenorphine sublingual tablets (blinded); Days 3 to 14: BNX sublingual film (open-label); Days 15-21: Switch to BNX sublingual tablets (open-label); Day 22: End of study visit
Total
n=758 Participants
Total of all reporting groups
Age, Continuous
35.6 years
STANDARD_DEVIATION 11.3 • n=5 Participants
35.7 years
STANDARD_DEVIATION 11.3 • n=7 Participants
35.6 years
STANDARD_DEVIATION 11.3 • n=5 Participants
Sex: Female, Male
Female
167 Participants
n=5 Participants
139 Participants
n=7 Participants
306 Participants
n=5 Participants
Sex: Female, Male
Male
216 Participants
n=5 Participants
236 Participants
n=7 Participants
452 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants
Race (NIH/OMB)
Asian
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
51 Participants
n=5 Participants
49 Participants
n=7 Participants
100 Participants
n=5 Participants
Race (NIH/OMB)
White
318 Participants
n=5 Participants
312 Participants
n=7 Participants
630 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
4 Participants
n=5 Participants
3 Participants
n=7 Participants
7 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=5 Participants
7 Participants
n=7 Participants
10 Participants
n=5 Participants
Height
171.5 cm
STANDARD_DEVIATION 9.3 • n=5 Participants
172.3 cm
STANDARD_DEVIATION 9.4 • n=7 Participants
171.9 cm
STANDARD_DEVIATION 9.4 • n=5 Participants
Weight
77.1 kg
STANDARD_DEVIATION 18.7 • n=5 Participants
78.3 kg
STANDARD_DEVIATION 18.4 • n=7 Participants
77.7 kg
STANDARD_DEVIATION 18.6 • n=5 Participants
Body mass index
26.2 kg/m2
STANDARD_DEVIATION 5.9 • n=5 Participants
26.3 kg/m2
STANDARD_DEVIATION 5.7 • n=7 Participants
26.3 kg/m2
STANDARD_DEVIATION 5.8 • n=5 Participants
Duration of opioid use
10.7 years
STANDARD_DEVIATION 9.6 • n=5 Participants
10.5 years
STANDARD_DEVIATION 9.0 • n=7 Participants
10.6 years
STANDARD_DEVIATION 9.3 • n=5 Participants

PRIMARY outcome

Timeframe: Day 3 and Day 15

Population: Per protocol population

Retention rates (number of patients retained) for the primary efficacy endpoints of retention in treatment at Days 3 and 15, which was defined as the number of patients who received treatment on Days 3 and 15.

Outcome measures

Outcome measures
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=329 Participants
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=326 Participants
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
Primary Endpoints of Retention in Treatment at Days 3 and 15
Retention at Day 3
309 participants
302 participants
Primary Endpoints of Retention in Treatment at Days 3 and 15
Retention at Day 15
273 participants
269 participants

SECONDARY outcome

Timeframe: Days 1 and 2

Population: Full Analysis Population - number of enrolled patients at the beginning of the measurement period

Absolute ± mean standard deviation values for COWS total scores at baseline; 0.5 h, 1.5 h, 3 h, and 6 h post dose on Day 1, and Day 2; COWS scores range from 0-48, with a lower score being more favorable

Outcome measures

Outcome measures
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=380 Participants
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=373 Participants
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
Clinical Opiate Withdrawal Scale (COWS) Scores: Induction
Baseline
15.0 units on a scale
Standard Deviation 4.2
14.9 units on a scale
Standard Deviation 4.3
Clinical Opiate Withdrawal Scale (COWS) Scores: Induction
Day 1 0.5 h post dose
10.5 units on a scale
Standard Deviation 4.6
10.3 units on a scale
Standard Deviation 4.7
Clinical Opiate Withdrawal Scale (COWS) Scores: Induction
Day 1 1.5 h post dose
8.8 units on a scale
Standard Deviation 4.6
8.3 units on a scale
Standard Deviation 4.5
Clinical Opiate Withdrawal Scale (COWS) Scores: Induction
Day 1 3 h post dose
6.6 units on a scale
Standard Deviation 5.1
6.1 units on a scale
Standard Deviation 5.1
Clinical Opiate Withdrawal Scale (COWS) Scores: Induction
Day 1 6 h post dose
5.3 units on a scale
Standard Deviation 4.1
5.4 units on a scale
Standard Deviation 4.6
Clinical Opiate Withdrawal Scale (COWS) Scores: Induction
Day 2
8.0 units on a scale
Standard Deviation 4.9
7.6 units on a scale
Standard Deviation 5.2

SECONDARY outcome

Timeframe: Days 3 through 22

Population: Full analysis population - - number of enrolled patients at the beginning of the measurement period

Absolute ± mean standard deviation values for COWS total scores at Days 3, 4, 8, 15, and 22; COWS scores range from 0-48, with a lower score being more favorable

Outcome measures

Outcome measures
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=355 Participants
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=344 Participants
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
COWS Total Scores: Stabilization/Maintenance
Day 3
6.0 units on a scale
Standard Deviation 4.2
5.9 units on a scale
Standard Deviation 4.4
COWS Total Scores: Stabilization/Maintenance
Day 4
5.2 units on a scale
Standard Deviation 4.0
5.1 units on a scale
Standard Deviation 4.3
COWS Total Scores: Stabilization/Maintenance
Day 8
4.8 units on a scale
Standard Deviation 3.9
4.6 units on a scale
Standard Deviation 3.9
COWS Total Scores: Stabilization/Maintenance
Day 15
4.1 units on a scale
Standard Deviation 3.5
3.7 units on a scale
Standard Deviation 3.4
COWS Total Scores: Stabilization/Maintenance
Day 22: Film (col 1); Tablets (col 2)
3.4 units on a scale
Standard Deviation 3.3
3.3 units on a scale
Standard Deviation 3.4

SECONDARY outcome

Timeframe: Days 1 and 2

Population: Full analysis population - number of enrolled patients at the beginning of the measurement period

Absolute ± mean standard deviation values for SOWS total scores at baseline, 0.5 h, 1.5 h, 3 h, and 6 h post dose on Day 1, and Day 2; SOWS score ranges from 0-64, with a lower score being more favorable

Outcome measures

Outcome measures
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=376 Participants
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=367 Participants
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
Subjective Opiate Withdrawal Scale (SOWS) Scores: Induction
Baseline
31.7 units on a scale
Standard Deviation 13.5
33.0 units on a scale
Standard Deviation 13.2
Subjective Opiate Withdrawal Scale (SOWS) Scores: Induction
Day 1 0.5 h post dose
22.7 units on a scale
Standard Deviation 13.9
23.0 units on a scale
Standard Deviation 13.6
Subjective Opiate Withdrawal Scale (SOWS) Scores: Induction
Day 1 1.5 h post dose
19.1 units on a scale
Standard Deviation 13.5
17.8 units on a scale
Standard Deviation 13.0
Subjective Opiate Withdrawal Scale (SOWS) Scores: Induction
Day 1 3 h post dose
13.6 units on a scale
Standard Deviation 12.7
13.0 units on a scale
Standard Deviation 12.5
Subjective Opiate Withdrawal Scale (SOWS) Scores: Induction
Day 1 6 h post dose
10.7 units on a scale
Standard Deviation 10.2
11.1 units on a scale
Standard Deviation 11.8
Subjective Opiate Withdrawal Scale (SOWS) Scores: Induction
Day 2
16.7 units on a scale
Standard Deviation 12.3
16.4 units on a scale
Standard Deviation 13.4

SECONDARY outcome

Timeframe: Days 3 through 22

Population: Full Analysis Population - number of enrolled patients at the beginning of the measurement period

Absolute ± mean standard deviation values for SOWS total scores on Days 2, 3, 4, 8, 15, and 22; SOWS scores ranged from 0-64, with a lower score being more favorable

Outcome measures

Outcome measures
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=355 Participants
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=342 Participants
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
SOWS Total Scores: Stabilization/Maintenance
Day 3
11.9 units on a scale
Standard Deviation 10.4
12.6 units on a scale
Standard Deviation 11.2
SOWS Total Scores: Stabilization/Maintenance
Day 4
10.1 units on a scale
Standard Deviation 9.2
10.2 units on a scale
Standard Deviation 10.3
SOWS Total Scores: Stabilization/Maintenance
Day 8
9.0 units on a scale
Standard Deviation 9.2
8.8 units on a scale
Standard Deviation 9.6
SOWS Total Scores: Stabilization/Maintenance
Day 15
7.2 units on a scale
Standard Deviation 7.7
6.7 units on a scale
Standard Deviation 8.1
SOWS Total Scores: Stabilization/Maintenance
Day 22: Film (col 1); Tablets (col 2)
6.8 units on a scale
Standard Deviation 7.9
7.3 units on a scale
Standard Deviation 9.2

SECONDARY outcome

Timeframe: Days 1 and 2

Population: Full Analysis Population - number of enrolled patients at the beginning of the measurement period

Absolute mean ± standard deviation values for VAS cravings at baseline, 0.5 h, 1.5 h, 3 h, and 6 post dose on Day 1, and Day 2; the VAS craving scores range from 0 ("no cravings") to 100 ("most intense craving I have ever had")

Outcome measures

Outcome measures
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=380 Participants
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=373 Participants
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
Visual Analog Scale (VAS) Cravings: Induction
Baseline
69.2 units on a scale
Standard Deviation 23.5
71.9 units on a scale
Standard Deviation 22.0
Visual Analog Scale (VAS) Cravings: Induction
Day 1 0.5 h post dose
56.8 units on a scale
Standard Deviation 26.5
58.2 units on a scale
Standard Deviation 26.4
Visual Analog Scale (VAS) Cravings: Induction
Day 1 1.5 h post dose
49.2 units on a scale
Standard Deviation 28.9
48.8 units on a scale
Standard Deviation 27.9
Visual Analog Scale (VAS) Cravings: Induction
Day 1 3 h post dose
36.0 units on a scale
Standard Deviation 28.2
34.9 units on a scale
Standard Deviation 27.8
Visual Analog Scale (VAS) Cravings: Induction
Day 1 6 h post dose
30.2 units on a scale
Standard Deviation 26.2
29.6 units on a scale
Standard Deviation 26.9
Visual Analog Scale (VAS) Cravings: Induction
Day 2
45.3 units on a scale
Standard Deviation 28.7
44.9 units on a scale
Standard Deviation 28.4

SECONDARY outcome

Timeframe: Days 3 through 22

Population: Full analysis population - number of enrolled patients at the beginning of the measurement period

Absolute mean ± standard deviation values for VAS cravings scores on Days 3, 4, 8, 15, and 22; the VAS craving scores range from 0 ("no cravings") to 100 ("most intense craving I have ever had")

Outcome measures

Outcome measures
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=356 Participants
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=344 Participants
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
VAS Craving Scores: Stabilization/Maintenance
Day 3
33.7 units on a scale
Standard Deviation 27.0
34.5 units on a scale
Standard Deviation 28.2
VAS Craving Scores: Stabilization/Maintenance
Day 4
29.1 units on a scale
Standard Deviation 26.2
28.5 units on a scale
Standard Deviation 26.4
VAS Craving Scores: Stabilization/Maintenance
Day 8
26.2 units on a scale
Standard Deviation 26.5
23.7 units on a scale
Standard Deviation 24.7
VAS Craving Scores: Stabilization/Maintenance
Day 15
21.6 units on a scale
Standard Deviation 23.9
19.1 units on a scale
Standard Deviation 23.4
VAS Craving Scores: Stabilization/Maintenance
Day 22: Film (col 1); Tablets (col 2)
20.2 units on a scale
Standard Deviation 22.9
20.9 units on a scale
Standard Deviation 23.8

Adverse Events

BNX Tablets, Then OL BNX Tablets, Then BNX Film

Serious events: 3 serious events
Other events: 61 other events
Deaths: 0 deaths

Buprenorphine, Then OL BNX Film, Then BNX Tablets

Serious events: 1 serious events
Other events: 55 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=383 participants at risk
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=375 participants at risk
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
Injury, poisoning and procedural complications
Worsening of pre-existing condition (foreign body in neck)
0.26%
1/383 • Number of events 1 • Monitoring for adverse events was conducted from baseline through Day 22.
0.00%
0/375 • Monitoring for adverse events was conducted from baseline through Day 22.
Respiratory, thoracic and mediastinal disorders
Non-cardiac chest pain
0.26%
1/383 • Number of events 1 • Monitoring for adverse events was conducted from baseline through Day 22.
0.00%
0/375 • Monitoring for adverse events was conducted from baseline through Day 22.
Hepatobiliary disorders
Elevated Transaminases
0.26%
1/383 • Number of events 1 • Monitoring for adverse events was conducted from baseline through Day 22.
0.00%
0/375 • Monitoring for adverse events was conducted from baseline through Day 22.
Nervous system disorders
Convulsion
0.00%
0/383 • Monitoring for adverse events was conducted from baseline through Day 22.
0.27%
1/375 • Number of events 1 • Monitoring for adverse events was conducted from baseline through Day 22.

Other adverse events

Other adverse events
Measure
BNX Tablets, Then OL BNX Tablets, Then BNX Film
n=383 participants at risk
Days 1-2: BNX sublingual tablets (blinded induction); Days 3-14: BNX sublingual tablets (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual film (open-label stabilization/maintenance); Day 22: End of study visit
Buprenorphine, Then OL BNX Film, Then BNX Tablets
n=375 participants at risk
Days 1-2: Buprenorphine sublingual tablets (blinded induction); Days 3-14: BNX sublingual film (open-label stabilization/maintenance); Days 15-21: Switch to BNX sublingual tablets (open-label stabilization/maintenance); Day 22: End of study visit
Nervous system disorders
Headache
5.2%
20/383 • Number of events 20 • Monitoring for adverse events was conducted from baseline through Day 22.
5.1%
19/375 • Number of events 19 • Monitoring for adverse events was conducted from baseline through Day 22.
Gastrointestinal disorders
Vomiting
3.1%
12/383 • Number of events 12 • Monitoring for adverse events was conducted from baseline through Day 22.
2.9%
11/375 • Number of events 11 • Monitoring for adverse events was conducted from baseline through Day 22.
Gastrointestinal disorders
Nausea
2.1%
8/383 • Number of events 8 • Monitoring for adverse events was conducted from baseline through Day 22.
4.0%
15/375 • Number of events 15 • Monitoring for adverse events was conducted from baseline through Day 22.
Gastrointestinal disorders
Dry mouth
2.1%
8/383 • Number of events 8 • Monitoring for adverse events was conducted from baseline through Day 22.
0.53%
2/375 • Number of events 2 • Monitoring for adverse events was conducted from baseline through Day 22.
Psychiatric disorders
Insomnia
1.3%
5/383 • Number of events 5 • Monitoring for adverse events was conducted from baseline through Day 22.
1.1%
4/375 • Number of events 4 • Monitoring for adverse events was conducted from baseline through Day 22.
Nervous system disorders
Somnolence
1.6%
6/383 • Number of events 6 • Monitoring for adverse events was conducted from baseline through Day 22.
0.53%
2/375 • Number of events 2 • Monitoring for adverse events was conducted from baseline through Day 22.
Gastrointestinal disorders
Constipation
1.0%
4/383 • Number of events 4 • Monitoring for adverse events was conducted from baseline through Day 22.
0.80%
3/375 • Number of events 3 • Monitoring for adverse events was conducted from baseline through Day 22.

Additional Information

Dr. Erik Gunderson, MD, FASAM

University of Virginia

Phone: (434) 202-8612

Results disclosure agreements

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