G-BMT: Buprenorphine Group Medical Visits in Primary Care

Sponsor
Montefiore Medical Center (Other)
Overall Status
Completed
CT.gov ID
NCT02526212
Collaborator
National Institute on Drug Abuse (NIDA) (NIH)
18
1
2
27.9
0.6

Study Details

Study Description

Brief Summary

The primary goal of this research is to improve the effectiveness of buprenorphine maintenance treatment (BMT) within primary care.

Investigators propose that providing BMT as part of a group medical visit (instead of an individual visit) will improve treatment outcomes for patients with persistent opioid abuse, because members become accountable to the group, are exposed to beneficial habits of others (i.e. positive deviance), and can receive efficacious behavioral interventions concomitantly with medical management

Condition or Disease Intervention/Treatment Phase
Phase 3

Detailed Description

Investigators have developed a preliminary model of BMT group medical visits, conducted focus groups with BMT patients and providers, and will use this data to develop a manualized group-based BMT intervention (G-BMT). Investigators will then conduct a randomized controlled trial (RCT) of the G-BMT intervention within primary care to preliminarily test its efficacy, acceptability, and feasibility. Participants who have persistent opioid abuse while receiving BMT in primary care will be randomized to the G-BMT intervention (40 participants in 5 groups) or to intensify BMT (treatment as usual) with their individual primary care physician (40 participants).

Hypothesis: In a 16-week RCT of G-BMT, participants who receive the G-BMT intervention (vs. treatment as usual) will have higher abstinence rates (primary outcome, efficacy), fewer HIV risk behaviors (efficacy), and greater satisfaction with treatment (acceptability) and adherence to medical visits (feasibility).

Study Design

Study Type:
Interventional
Actual Enrollment :
18 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Buprenorphine Group Medical Visits for Drug Users at Risk for HIV
Actual Study Start Date :
Jan 1, 2017
Actual Primary Completion Date :
May 1, 2019
Actual Study Completion Date :
May 1, 2019

Arms and Interventions

Arm Intervention/Treatment
Experimental: G-BMT, Buprenorphine

This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management.

Behavioral: G-BMT
The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management.
Other Names:
  • Group Buprenorphine Maintenance Treatment (G-BMT)
  • Drug: Buprenorphine
    All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Other Names:
  • Buprenorphine Maintenance Treatment (BMT)
  • Active Comparator: Treatment as usual, Buprenorphine

    Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist.

    Behavioral: Treatment as usual
    Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist.

    Drug: Buprenorphine
    All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Other Names:
  • Buprenorphine Maintenance Treatment (BMT)
  • Outcome Measures

    Primary Outcome Measures

    1. Number of Participants With Opioid Abstinence at 8 Weeks [8 weeks]

      Opioid abstinence will be based on self-reported opioid use in the prior 30 days at the 8 week visit and the results of urine toxicology test at the 8 week visit. Abstinence (yes) will require no self-reported opioid use and negative urine toxicology test for opiates, methadone, and oxycodone.

    Secondary Outcome Measures

    1. Number of Participants Who Were Retained in Buprenorphine Treatment at 3 Months and 6 Months [3 months, 6 months]

      Retention is defined as having a medical visit or active buprenorphine prescription 12-16 weeks (3 month retention) and 24-28 weeks (6 month retention) after protocol initiation.

    2. Number of Participants Who Reported Sharing Injection Equipment at 8 Weeks [8 weeks]

      We used the HIV risk measure from the NIDA Seek, Test, Treat, and Retain for Vulnerable Populations study. Items for sexual risk behavior are from the Women's Health CoOp Baseline Questionnaire. Items for injection risk behavior are from the STTR Criminal Justice instrument. We will report the number of participants reporting sharing of injection equipment at 8 weeks following enrollment.

    3. Acceptability (Scale) [16 weeks]

      Satisfaction with BMT will be measured on a 5-point Likert scale for participants following completion of the intervention. We used 17 items from the Primary Care Buprenorphine Satisfaction Scale. Each item addressed satisfaction with a specific component of buprenorphine treatment, which participants rated on a scale from 1 (very unsatisfied) to 5 (very satisfied). A higher score indicates greater satisfaction.

    4. Feasibility (Percentage of Visits Attended) [8 weeks]

      Visit adherence will be measured as the number of buprenorphine visits attended divided by the number of buprenorphine visits required per protocol and multiplied by 100 to give a percentage

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    1. Currently receiving BMT at Montefiore community health center (CHC).

    2. Received BMT for 12 or more weeks.

    3. Persistent opioid abuse (positive toxicology for an unprescribed opioid at most recent test or in 50% or more of collected tests in the previous 6 months.)

    4. Fluent in English of Spanish

    Exclusion Criteria:
    1. Pregnancy

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Comprehensive Health Care Center Bronx New York United States 10451

    Sponsors and Collaborators

    • Montefiore Medical Center
    • National Institute on Drug Abuse (NIDA)

    Investigators

    • Principal Investigator: Aaron D Fox, MD, MS, Montefiore Medical Center/Albert Einstein College of Medicine

    Study Documents (Full-Text)

    More Information

    Publications

    None provided.
    Responsible Party:
    Aaron D. Fox, Assistant Professor of Medicine, Montefiore Medical Center
    ClinicalTrials.gov Identifier:
    NCT02526212
    Other Study ID Numbers:
    • 2014-3580
    • R34DA039041
    First Posted:
    Aug 18, 2015
    Last Update Posted:
    Jul 7, 2020
    Last Verified:
    Jun 1, 2020
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Aaron D. Fox, Assistant Professor of Medicine, Montefiore Medical Center
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail
    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Period Title: Overall Study
    STARTED 10 8
    COMPLETED 8 7
    NOT COMPLETED 2 1

    Baseline Characteristics

    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine Total
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Total of all reporting groups
    Overall Participants 10 8 18
    Age (years) [Median (Inter-Quartile Range) ]
    Median (Inter-Quartile Range) [years]
    54.5
    50.5
    52
    Sex: Female, Male (Count of Participants)
    Female
    1
    10%
    0
    0%
    1
    5.6%
    Male
    9
    90%
    8
    100%
    17
    94.4%
    Race/Ethnicity, Customized (Count of Participants)
    Hispanic
    9
    90%
    8
    100%
    17
    94.4%
    Non-Hispanic Black
    1
    10%
    0
    0%
    1
    5.6%
    Non-Hispanic White
    0
    0%
    0
    0%
    0
    0%
    Education (Count of Participants)
    High School
    6
    60%
    6
    75%
    12
    66.7%
    College
    4
    40%
    2
    25%
    6
    33.3%
    Housing Status (Count of Participants)
    Unstable Housing
    6
    60%
    6
    75%
    12
    66.7%
    Rental Apartment
    4
    40%
    2
    25%
    6
    33.3%
    Recent Incarceration (Count of Participants)
    Count of Participants [Participants]
    2
    20%
    1
    12.5%
    3
    16.7%
    Unemployed (Count of Participants)
    Count of Participants [Participants]
    8
    80%
    7
    87.5%
    15
    83.3%
    Parole (Count of Participants)
    Count of Participants [Participants]
    2
    20%
    1
    12.5%
    3
    16.7%
    Alcohol use (Count of Participants)
    Count of Participants [Participants]
    4
    40%
    2
    25%
    6
    33.3%
    Heroin use (Count of Participants)
    Count of Participants [Participants]
    8
    80%
    6
    75%
    14
    77.8%
    Any illicit opioid use (Count of Participants)
    Count of Participants [Participants]
    8
    80%
    7
    87.5%
    15
    83.3%
    Cocaine use (Count of Participants)
    Count of Participants [Participants]
    4
    40%
    2
    25%
    6
    33.3%
    Injection drug use (Count of Participants)
    Count of Participants [Participants]
    2
    20%
    2
    25%
    4
    22.2%

    Outcome Measures

    1. Primary Outcome
    Title Number of Participants With Opioid Abstinence at 8 Weeks
    Description Opioid abstinence will be based on self-reported opioid use in the prior 30 days at the 8 week visit and the results of urine toxicology test at the 8 week visit. Abstinence (yes) will require no self-reported opioid use and negative urine toxicology test for opiates, methadone, and oxycodone.
    Time Frame 8 weeks

    Outcome Measure Data

    Analysis Population Description
    Intention to treat analysis - missing urine drug toxicology tests are considered to be positive for illicit opioids
    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Measure Participants 10 8
    Count of Participants [Participants]
    0
    0%
    1
    12.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection G-BMT, Buprenorphine, Treatment as Usual, Buprenorphine
    Comments Due to the small sample size, planned analyses that assessed for clustering by group assignment or primary care physician could not be conducted. Chi square using fisher's exact test was conducted to investigate differences in abstinence between study arms.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.44
    Comments
    Method Fisher Exact
    Comments
    2. Secondary Outcome
    Title Number of Participants Who Were Retained in Buprenorphine Treatment at 3 Months and 6 Months
    Description Retention is defined as having a medical visit or active buprenorphine prescription 12-16 weeks (3 month retention) and 24-28 weeks (6 month retention) after protocol initiation.
    Time Frame 3 months, 6 months

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Measure Participants 10 8
    3 month retention
    8
    80%
    7
    87.5%
    6 month retention
    8
    80%
    6
    75%
    3. Secondary Outcome
    Title Number of Participants Who Reported Sharing Injection Equipment at 8 Weeks
    Description We used the HIV risk measure from the NIDA Seek, Test, Treat, and Retain for Vulnerable Populations study. Items for sexual risk behavior are from the Women's Health CoOp Baseline Questionnaire. Items for injection risk behavior are from the STTR Criminal Justice instrument. We will report the number of participants reporting sharing of injection equipment at 8 weeks following enrollment.
    Time Frame 8 weeks

    Outcome Measure Data

    Analysis Population Description
    8 week data missing for 4 participants in G-BMT arm and 3 participants in the treatment as usual arm
    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Measure Participants 6 6
    Count of Participants [Participants]
    0
    0%
    0
    0%
    4. Secondary Outcome
    Title Acceptability (Scale)
    Description Satisfaction with BMT will be measured on a 5-point Likert scale for participants following completion of the intervention. We used 17 items from the Primary Care Buprenorphine Satisfaction Scale. Each item addressed satisfaction with a specific component of buprenorphine treatment, which participants rated on a scale from 1 (very unsatisfied) to 5 (very satisfied). A higher score indicates greater satisfaction.
    Time Frame 16 weeks

    Outcome Measure Data

    Analysis Population Description
    Acceptability data missing for 4 participants in G-BMT arm and 3 participants in the treatment as usual arm
    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Measure Participants 6 6
    Mean (Standard Deviation) [units on a scale]
    4.6
    (0.29)
    4.8
    (0.19)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection G-BMT, Buprenorphine, Treatment as Usual, Buprenorphine
    Comments Each of the 17 items were rated on a scale from 1 to 5. For each participant, the scores from these items were summed and divided by 17 for an average satisfaction score. The average satisfaction score was compared between study arms.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.20
    Comments
    Method t-test, 2 sided
    Comments
    5. Secondary Outcome
    Title Feasibility (Percentage of Visits Attended)
    Description Visit adherence will be measured as the number of buprenorphine visits attended divided by the number of buprenorphine visits required per protocol and multiplied by 100 to give a percentage
    Time Frame 8 weeks

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    Measure Participants 10 8
    Median (Inter-Quartile Range) [percentage of visits attended]
    69
    71

    Adverse Events

    Time Frame Medical record review was conducted after 24 weeks had elapsed following enrollment.
    Adverse Event Reporting Description
    Arm/Group Title G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Arm/Group Description This arm will receive the G-BMT intervention, which will include group visits where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. The G-BMT intervention will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. G-BMT: The G-BMT intervention will include weekly group visits (for 8 weeks) where 5-10 patients simultaneously receive care from a multidisciplinary team of a generalist physician and a behavioral specialist. Group visits will last 90 minutes and include: BMT education, instruction on self-management skills, peer support, and individual medical management. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Treatment as usual: Primary care physicians who prescribe buprenorphine will be trained to follow a protocol of BMT intensification, which includes increased visit frequency, referral for mental health counseling, and referral to addiction treatment specialist. Buprenorphine: All participants will continue to receive maintenance treatment with buprenorphine-naloxone
    All Cause Mortality
    G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/10 (0%) 1/8 (12.5%)
    Serious Adverse Events
    G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/10 (0%) 0/8 (0%)
    Other (Not Including Serious) Adverse Events
    G-BMT, Buprenorphine Treatment as Usual, Buprenorphine
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/10 (0%) 0/8 (0%)

    Limitations/Caveats

    Due to the small sample size, several analyses were not conducted as planned. Narrow inclusion criteria limited recruitment. Though efficacy data is limited, this pilot study did provide useful information about group feasibility and acceptability.

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Aaron Fox, Principal Investigator
    Organization Montefiore Medical Center-Albert Einstein College of Medicine
    Phone 718-920-7173
    Email adfox@montefiore.org
    Responsible Party:
    Aaron D. Fox, Assistant Professor of Medicine, Montefiore Medical Center
    ClinicalTrials.gov Identifier:
    NCT02526212
    Other Study ID Numbers:
    • 2014-3580
    • R34DA039041
    First Posted:
    Aug 18, 2015
    Last Update Posted:
    Jul 7, 2020
    Last Verified:
    Jun 1, 2020