Trial Outcomes & Findings for Safety and Tolerability Study of Depot Buprenorphine in Treatment Seeking Subjects With Opioid Use Disorder (NCT NCT02510014)

NCT ID: NCT02510014

Last Updated: 2018-03-29

Results Overview

TEAE=any untoward medical occurrence that develops or worsens in severity after dispensation of the study drug and does not necessarily have a causal relationship to the study drug. Severity was rated by the investigator on a scale of mild, moderate and severe, with severe= a marked limitation in activity. Relation of AE to treatment was determined by the investigator. Serious AEs include death, a life-threatening adverse event, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, OR an important medical event that jeopardized the patient and required medical intervention to prevent one of the outcomes listed in this definition.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

775 participants

Primary outcome timeframe

Day 1 to Week 49 (De novo arm); Day 1 to Week 25 (Roll-over arm)

Results posted on

2018-03-29

Participant Flow

A total of 994 subjects were screened by 39 sites, and of those, 775 subjects entered the run-in period receiving at least 1 dose of SUBOXONE (508 de novo subjects and 267 roll-over subjects).

Participant milestones

Participant milestones
Measure
De Novo Subjects
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Run-In Period (Days -14 to Day -1)
STARTED
508
267
Run-In Period (Days -14 to Day -1)
COMPLETED
412
257
Run-In Period (Days -14 to Day -1)
NOT COMPLETED
96
10
Treatment Period
STARTED
412
257
Treatment Period
COMPLETED
206
200
Treatment Period
NOT COMPLETED
206
57

Reasons for withdrawal

Reasons for withdrawal
Measure
De Novo Subjects
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Run-In Period (Days -14 to Day -1)
Adverse Event
1
1
Run-In Period (Days -14 to Day -1)
Withdrawal symptoms
1
0
Run-In Period (Days -14 to Day -1)
Lost to Follow-up
44
3
Run-In Period (Days -14 to Day -1)
Physician Decision
0
1
Run-In Period (Days -14 to Day -1)
Withdrawal by Subject
22
3
Run-In Period (Days -14 to Day -1)
Withdrawn by the investigator
7
1
Run-In Period (Days -14 to Day -1)
Protocol Violation
2
0
Run-In Period (Days -14 to Day -1)
Other
19
1
Treatment Period
Adverse Event
11
4
Treatment Period
Withdrawal symptoms
3
0
Treatment Period
Lost to Follow-up
80
19
Treatment Period
Physician Decision
5
0
Treatment Period
Withdrawal by Subject
67
24
Treatment Period
Withdrawn by the investigator
7
1
Treatment Period
Protocol Violation
4
4
Treatment Period
Incarceration, pregnancy, misc
29
5

Baseline Characteristics

Records for one participant were missing baseline waist-to-hip ratio.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
De Novo Subjects
n=412 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Total
n=669 Participants
Total of all reporting groups
Age, Continuous
38.4 years
STANDARD_DEVIATION 12.10 • n=412 Participants
41.6 years
STANDARD_DEVIATION 11.07 • n=257 Participants
39.6 years
STANDARD_DEVIATION 11.81 • n=669 Participants
Age, Customized
>=18 to <30 years
122 Participants
n=412 Participants
40 Participants
n=257 Participants
162 Participants
n=669 Participants
Age, Customized
>=30 to <45 years
157 Participants
n=412 Participants
114 Participants
n=257 Participants
271 Participants
n=669 Participants
Age, Customized
>=45 to <60 years
107 Participants
n=412 Participants
89 Participants
n=257 Participants
196 Participants
n=669 Participants
Age, Customized
>= 60 to < 65 years
25 Participants
n=412 Participants
14 Participants
n=257 Participants
39 Participants
n=669 Participants
Age, Customized
>=65 years
1 Participants
n=412 Participants
0 Participants
n=257 Participants
1 Participants
n=669 Participants
Sex: Female, Male
Female
149 Participants
n=412 Participants
88 Participants
n=257 Participants
237 Participants
n=669 Participants
Sex: Female, Male
Male
263 Participants
n=412 Participants
169 Participants
n=257 Participants
432 Participants
n=669 Participants
Race/Ethnicity, Customized
Hispanic or Latino
43 Participants
n=412 Participants
16 Participants
n=257 Participants
59 Participants
n=669 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
369 Participants
n=412 Participants
241 Participants
n=257 Participants
610 Participants
n=669 Participants
Race
White
295 Participants
n=412 Participants
167 Participants
n=257 Participants
462 Participants
n=669 Participants
Race
Black or African American
107 Participants
n=412 Participants
85 Participants
n=257 Participants
192 Participants
n=669 Participants
Race
Native Hawaiian or Other Pacific Islander
0 Participants
n=412 Participants
1 Participants
n=257 Participants
1 Participants
n=669 Participants
Race
American Indian or Alaska Native
2 Participants
n=412 Participants
2 Participants
n=257 Participants
4 Participants
n=669 Participants
Race
Asian
2 Participants
n=412 Participants
0 Participants
n=257 Participants
2 Participants
n=669 Participants
Race
Multiple
2 Participants
n=412 Participants
2 Participants
n=257 Participants
4 Participants
n=669 Participants
Race
Other
4 Participants
n=412 Participants
0 Participants
n=257 Participants
4 Participants
n=669 Participants
Weight
75.49 kg
STANDARD_DEVIATION 14.658 • n=412 Participants
78.43 kg
STANDARD_DEVIATION 18.097 • n=257 Participants
76.62 kg
STANDARD_DEVIATION 16.117 • n=669 Participants
Waist-to-Hip Ratio
0.91 ratio
STANDARD_DEVIATION 0.086 • n=411 Participants • Records for one participant were missing baseline waist-to-hip ratio.
0.90 ratio
STANDARD_DEVIATION 0.083 • n=257 Participants • Records for one participant were missing baseline waist-to-hip ratio.
0.90 ratio
STANDARD_DEVIATION 0.085 • n=668 Participants • Records for one participant were missing baseline waist-to-hip ratio.
Body Mass Index
25.38 kg/m^2
STANDARD_DEVIATION 4.286 • n=412 Participants
26.14 kg/m^2
STANDARD_DEVIATION 5.067 • n=257 Participants
25.67 kg/m^2
STANDARD_DEVIATION 4.613 • n=669 Participants
Tobacco use
Never
40 Participants
n=412 Participants
23 Participants
n=257 Participants
63 Participants
n=669 Participants
Tobacco use
Former
18 Participants
n=412 Participants
12 Participants
n=257 Participants
30 Participants
n=669 Participants
Tobacco use
Current
354 Participants
n=412 Participants
222 Participants
n=257 Participants
576 Participants
n=669 Participants
Caffeine use
Never
33 Participants
n=412 Participants
21 Participants
n=257 Participants
54 Participants
n=669 Participants
Caffeine use
Former
13 Participants
n=412 Participants
7 Participants
n=257 Participants
20 Participants
n=669 Participants
Caffeine use
Current
365 Participants
n=412 Participants
229 Participants
n=257 Participants
594 Participants
n=669 Participants
Caffeine use
Missing data
1 Participants
n=412 Participants
0 Participants
n=257 Participants
1 Participants
n=669 Participants
Alcohol use
Never
122 Participants
n=412 Participants
48 Participants
n=257 Participants
170 Participants
n=669 Participants
Alcohol use
Former
97 Participants
n=412 Participants
65 Participants
n=257 Participants
162 Participants
n=669 Participants
Alcohol use
Current
193 Participants
n=412 Participants
144 Participants
n=257 Participants
337 Participants
n=669 Participants

PRIMARY outcome

Timeframe: Day 1 to Week 49 (De novo arm); Day 1 to Week 25 (Roll-over arm)

Population: Safety analysis set

TEAE=any untoward medical occurrence that develops or worsens in severity after dispensation of the study drug and does not necessarily have a causal relationship to the study drug. Severity was rated by the investigator on a scale of mild, moderate and severe, with severe= a marked limitation in activity. Relation of AE to treatment was determined by the investigator. Serious AEs include death, a life-threatening adverse event, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, OR an important medical event that jeopardized the patient and required medical intervention to prevent one of the outcomes listed in this definition.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=412 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
>=1 TEAE
302 Participants
145 Participants
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
>=1 TEAE related to study drug
172 Participants
61 Participants
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
>=1 serious TEAE
16 Participants
9 Participants
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
>=1 serious study treatment-related TEAE
0 Participants
0 Participants
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
Death
0 Participants
0 Participants
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
>=1 severe TEAE
36 Participants
7 Participants
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
TEAE leading to study treatment discontinuation
13 Participants
4 Participants
Participants With Treatment-Emergent Adverse Events (TEAE) During the Treatment Period
TEAE leading to dose reduction
29 Participants
17 Participants

PRIMARY outcome

Timeframe: Baseline (Day 1 predose) End of Study: Week 49 (De novo arm); Week 25 (Roll-over arm)

Population: Safety analysis set of participants with both a baseline and end of study reading

Vital signs include * systolic blood pressure (mmHg) * diastolic blood pressure (mmHg) * respiratory rate (breaths/minute) * weight (kg) * body mass index (kg/m\^2) * waist-to-hip ratio Baseline is defined as the last non-missing value prior to subcutaneous injection of RBP-6000 on Day 1.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=206 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=198 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Percentage Change From Baseline to End of Study (Weeks 25 and 49) in Vital Signs
Systolic blood pressure
0.2 percentage change from baseline
Standard Deviation 11.69
1.3 percentage change from baseline
Standard Deviation 11.25
Percentage Change From Baseline to End of Study (Weeks 25 and 49) in Vital Signs
Waist-to-hip ratio
1.828 percentage change from baseline
Standard Deviation 11.1698
1.015 percentage change from baseline
Standard Deviation 8.1150
Percentage Change From Baseline to End of Study (Weeks 25 and 49) in Vital Signs
Diastolic blood pressure
0.1 percentage change from baseline
Standard Deviation 13.97
1.6 percentage change from baseline
Standard Deviation 12.49
Percentage Change From Baseline to End of Study (Weeks 25 and 49) in Vital Signs
Respiratory rate
-1.2 percentage change from baseline
Standard Deviation 11.11
1.0 percentage change from baseline
Standard Deviation 11.02
Percentage Change From Baseline to End of Study (Weeks 25 and 49) in Vital Signs
Body weight
1.52 percentage change from baseline
Standard Deviation 10.651
-0.94 percentage change from baseline
Standard Deviation 6.497
Percentage Change From Baseline to End of Study (Weeks 25 and 49) in Vital Signs
Body mass index
1.53 percentage change from baseline
Standard Deviation 10.657
-0.93 percentage change from baseline
Standard Deviation 6.507

PRIMARY outcome

Timeframe: Baseline (Screening visit, days -21 to -15), End of Study: Week 49 (De novo arm); Week 25 (Roll-over arm)

Population: Safety population. Four de novo subjects and one roll-over subject are not reported because they used the C-SSRS baseline version throughout the study.

The C-SSRS asks questions of study participants regarding whether they had suicidal ideation and/or suicidal behavior since the last visit using the electronic version of the scale. Only the most severe assessment is reported in this summary. Participants who experienced suicidal ideation and suicidal behavior are only summarized in the suicidal behavior since behavior is more severe than ideation. C-SSRS baseline version was completed during the screening visit. C-SSRS 'since-last-visit' version was completed weekly for the first month and at least every month until the end of the study. Shift table category titles are structured as: baseline category/treatment category. The category 'No Suicidal Ideation or Behaviour' has been abbreviated as 'No Suicidal I or B'.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=408 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=256 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
No Suicidal I or B / No Suicidal I or B
307 Participants
252 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
No Suicidal I or B / Suicidal Ideation
10 Participants
1 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
Suicidal Ideation / No Suicidal I or B
46 Participants
1 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
Suicidal Ideation / Suicidal Behaviour
3 Participants
0 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
Suicidal Behaviour / Suicidal Ideation
2 Participants
0 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
Suicidal Behaviour / Suicidal Behaviour
2 Participants
0 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
No Suicidal I or B / Suicidal Behaviour
3 Participants
1 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
Suicidal Ideation / Suicidal Ideation
7 Participants
1 Participants
Shifts in Suicidality Using the Columbia Suicide Severity Rating Scale (C-SSRS) From Baseline to Most Severe Assessment During the Treatment Period
Suicidal Behaviour / No Suicidal I or B
28 Participants
0 Participants

PRIMARY outcome

Timeframe: De Novo Subjects: Days 1, 29, 57, 85, 113, 141, 169, 197, 225, 253, 281 and 309 Roll-over Subjects: Days 1, 29, 57, 85, 113, 141

Population: Safety analysis set

Injection site pain as measured by participant-reported VAS. The participant-reported VAS for injection site pain was measured on a 100 mm scale with 'no pain' at 0 mm and 'strongest pain ever' at 100 mm (total scale of 0-100). Participants marked where along the scale reflected their localized injection pain. The injection site pain VAS scores were obtained (after the completion of the injection) within 1 minute and at 5, 10, 15, 30 and 60 minutes (+- 5 minutes). The timing of the injection site pain VAS should have been measured from the end of the injection. Data represents the worst pain recorded for each participant across all injections and all VAS records. The mean value is presented. De Novo subjects were given injections on Days 1, 29, 57, 85, 113, 141, 169, 197, 225, 253, 281 and 309. Roll-over subjects were given injections on Days 1, 29, 57, 85, 113, 141.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=412 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 1
44.0 units on a scale
Standard Deviation 29.86
33.5 units on a scale
Standard Deviation 31.50
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 3
38.9 units on a scale
Standard Deviation 32.14
30.2 units on a scale
Standard Deviation 32.09
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 4
33.6 units on a scale
Standard Deviation 32.86
31.3 units on a scale
Standard Deviation 31.72
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 5
30.6 units on a scale
Standard Deviation 30.96
32.2 units on a scale
Standard Deviation 31.25
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 6
30.5 units on a scale
Standard Deviation 31.89
30.5 units on a scale
Standard Deviation 30.88
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 7
28.9 units on a scale
Standard Deviation 32.13
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 8
28.6 units on a scale
Standard Deviation 30.21
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 9
30.2 units on a scale
Standard Deviation 33.96
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 10
31.8 units on a scale
Standard Deviation 33.16
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 11
25.8 units on a scale
Standard Deviation 30.71
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 12
24.7 units on a scale
Standard Deviation 28.22
Worst Local Injection Site Pain From Injections as Measured by Participant-Reported Visual Analog Scale (VAS)
Injection 2
39.8 units on a scale
Standard Deviation 31.98
32.7 units on a scale
Standard Deviation 31.59

SECONDARY outcome

Timeframe: Baseline (Day 1 predose), End of Study: Week 49 (De novo arm); Week 25 (Roll-over arm)

Population: Safety analysis set

COWS is an 11-item instrument used to assess signs and symptoms of opioid withdrawal. The score is the sum of the responses for a total range of 0-48. The COWS is commonly used by clinicians treating patients with buprenorphine to monitor the severity of withdrawal. COWS scores below 5 are considered not indicative of withdrawal. Scores from 5 to 12 are considered mild withdrawal; from 13 to 24 moderate withdrawal; 25 to 36 moderately severe withdrawal, and 37-48 severe withdrawal. Negative change from baseline values indicate a lessening of withdrawal symptoms. Baseline was defined as the last non-missing value prior to subcutaneous injection on Day 1. Baseline value is reported as an observed actual value. Weeks 25 and 49 represent change from baseline values.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=412 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Change From Baseline in the Clinical Opiate Withdrawal Scale (COWS) at End of Study (Weeks 25 and 49)
Change from baseline: Week 49
-1.0 units on a scale
Standard Deviation 2.41
Change From Baseline in the Clinical Opiate Withdrawal Scale (COWS) at End of Study (Weeks 25 and 49)
Baseline (actual value)
2.1 units on a scale
Standard Deviation 2.43
1.5 units on a scale
Standard Deviation 1.98
Change From Baseline in the Clinical Opiate Withdrawal Scale (COWS) at End of Study (Weeks 25 and 49)
Change from baseline: Week 25
-1.0 units on a scale
Standard Deviation 2.61
-0.3 units on a scale
Standard Deviation 2.37

SECONDARY outcome

Timeframe: Baseline (Day 1 predose), End of Study: Week 49 (De novo arm); Week 25 (Roll-over arm)

Population: Safety analysis set

The Subjective Opiate Withdrawal Scale (SOWS) contains 16 symptoms whose intensity the participant rates on a scale of 0 (not at all) to 4 (extremely) for a full scale of 0 (no withdrawal symptoms) to 64 (extreme withdrawal symptoms). Negative change from baseline values indicate a lessening of withdrawal symptoms. Baseline was defined as the last non-missing value prior to subcutaneous injection on Day 1. Baseline value is reported as an observed actual value. Weeks 25 and 49 represent change from baseline values.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=412 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Change From Baseline in the Subjective Opiate Withdrawal Scale (SOWS) at End of Study (Weeks 25 and 49)
Baseline (actual value)
3.8 units on a scale
Standard Deviation 5.27
2.8 units on a scale
Standard Deviation 5.44
Change From Baseline in the Subjective Opiate Withdrawal Scale (SOWS) at End of Study (Weeks 25 and 49)
Change from baseline: Week 25
-1.1 units on a scale
Standard Deviation 6.63
1.1 units on a scale
Standard Deviation 7.17
Change From Baseline in the Subjective Opiate Withdrawal Scale (SOWS) at End of Study (Weeks 25 and 49)
Change from baseline: Week 49
-1.6 units on a scale
Standard Deviation 5.05

SECONDARY outcome

Timeframe: Baseline (Day 1 predose), End of Study: Week 49 (De novo arm); Week 25 (Roll-over arm)

Population: Safety analysis set

The opioid craving scale was a 100 mm scale with 'no craving' indicated by 0 mm and 'strongest craving ever' indicated by 100 mm. Participants marked where along the scale reflected their craving for opioids. Baseline was defined as the last non-missing value prior to subcutaneous injection on Day 1. Baseline value is reported as an observed actual value. Weeks 25 and 49 represent change from baseline values.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=412 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Change From Baseline in the Opioid Craving Visual Analog Scale (VAS) at End of Study (Weeks 25 and 49)
Baseline (actual value)
5.9 units on a scale
Standard Deviation 10.59
4.4 units on a scale
Standard Deviation 9.62
Change From Baseline in the Opioid Craving Visual Analog Scale (VAS) at End of Study (Weeks 25 and 49)
Change from baseline: Week 25
-0.2 units on a scale
Standard Deviation 16.19
4.2 units on a scale
Standard Deviation 16.77
Change From Baseline in the Opioid Craving Visual Analog Scale (VAS) at End of Study (Weeks 25 and 49)
Change from baseline: Week 49
-2.0 units on a scale
Standard Deviation 10.83

SECONDARY outcome

Timeframe: Weekly during Month 1, Every other week from Month 2-6, Monthly from Month 7-12. De novo arm stopped at Week 49. Roll-over arm stopped at Week 25

Population: Safety analysis set

Participants' self-reported illicit opioid drug use from the timeline followback (TLFB) interview and results from the urine drug screens (UDS) for opioids were combined into a single endpoint. Opioids assessed included codeine, hydrocodone, hydromorphone, methadone, morphine, opiates, oxycodone, and oxymorphone (by UDS) and amphetamine/methadone, buprenorphine, methadone, and opioids in the TLFB. Data represent the count of participants at various percentage abstinence levels. Abstinence was defined as urine samples being negative for opioids AND negative self-reports (obtained from Timeline Followback (TLFB) interviews) for illicit opioid use. The endpoint was based on visits in which paired urine samples and self-reports were expected for each subject as specified in the schedule of events. All missing reports for opioids were considered nonnegative.

Outcome measures

Outcome measures
Measure
De Novo Subjects
n=412 Participants
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 Participants
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=10%
315 Participants
206 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=20%
278 Participants
200 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=70%
132 Participants
110 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=0%
412 Participants
257 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=30%
239 Participants
189 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=40%
217 Participants
159 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=50%
187 Participants
150 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=60%
166 Participants
137 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=80%
98 Participants
96 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
>=90%
62 Participants
74 Participants
Cumulative Distribution Function (CDF) of the Percentage Abstinence Collected From Week 1 Through End of Study (Weeks 25 and 49)
=100%
32 Participants
47 Participants

Adverse Events

De Novo Subjects

Serious events: 16 serious events
Other events: 146 other events
Deaths: 0 deaths

Roll-over Subjects

Serious events: 9 serious events
Other events: 42 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
De Novo Subjects
n=412 participants at risk
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 participants at risk
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Infections and infestations
Cellulitis
0.49%
2/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Abscess limb
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Appendicitis
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Escherichia pyelonephritis
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Localised infection
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Pneumonia viral
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Prostatic abscess
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Staphylococcal bacteraemia
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Urinary tract infection
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Injury, poisoning and procedural complications
Accidental overdose
0.49%
2/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Injury, poisoning and procedural complications
Arthropod bite
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Injury, poisoning and procedural complications
Laceration
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Injury, poisoning and procedural complications
Multiple fractures
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Injury, poisoning and procedural complications
Road traffic accident
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Injury, poisoning and procedural complications
Thermal burn
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Psychiatric disorders
Adjustment disorder with mixed anxiety and depressed mood
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Psychiatric disorders
Major depression
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Psychiatric disorders
Mania
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Respiratory, thoracic and mediastinal disorders
Asthma
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Nervous system disorders
Dizziness
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Nervous system disorders
Generalised tonic-clonic seizure
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Cardiac disorders
Myocardial infarction
0.00%
0/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.39%
1/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Gastrointestinal disorders
Abdominal pain
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Hepatobiliary disorders
Gallbladder perforation
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Metabolism and nutrition disorders
Hypokalaemia
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Vascular disorders
Thrombophlebitis superficial
0.24%
1/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
0.00%
0/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm

Other adverse events

Other adverse events
Measure
De Novo Subjects
n=412 participants at risk
Subjects who did not participate in RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 12 months in the Treatment period.
Roll-over Subjects
n=257 participants at risk
Subjects who completed RB-US-13-0001 received SUBOXONE sublingual film during the Run-In period, followed by an initial open-label injection of 300 mg RBP-6000. Participants continued with monthly injections of either 300 mg or 100 mg (based on judgement of the Investigator) for a total of 6 months in the Treatment period.
Gastrointestinal disorders
Constipation
11.4%
47/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
3.5%
9/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Gastrointestinal disorders
Nausea
9.0%
37/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
3.9%
10/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
General disorders
Injection site pain
9.5%
39/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
2.7%
7/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Psychiatric disorders
Insomnia
6.6%
27/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
3.9%
10/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Nervous system disorders
Headache
7.5%
31/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
1.9%
5/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
Infections and infestations
Nasopharyngitis
5.8%
24/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
2.3%
6/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
General disorders
Injection site erythema
5.3%
22/412 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm
1.9%
5/257 • Day 1 to Week 49 for De Novo arm Day 1 to Week 25 for the Roll-over arm

Additional Information

Global Director, Clinical Development

Indivior, Inc.

Phone: 804-379-1090

Results disclosure agreements

  • Principal investigator is a sponsor employee Proposed publications shall be submitted to Sponsor 30 days prior to submission for publication, and may be withheld for an additional period, up to 90 days, to allow Sponsor to file patent applications. If a multi-center publication isn't submitted for publication within 12 months of the conclusion of the Study at all sites, or is published in a shorter period, the results from the institution's site may be published individually.
  • Publication restrictions are in place

Restriction type: OTHER