Extended Release Naltrexone Versus Extended Release Buprenorphine With Individuals Leaving Jail
NCT ID: NCT04408313
Last Updated: 2026-01-26
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
PHASE2/PHASE3
240 participants
INTERVENTIONAL
2020-10-28
2026-05-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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XR-B
Extended-release buprenorphine
XR-B
Individuals will receive extended-release buprenorphine, administered as a subcutaneous injection, is available in seven different dosage strengths for weekly (8, 16, 24, and 32 mg) and monthly (64, 96, and 128 mg) administration by a health care professional.
XR-NTX
Extended-release naltrexone
XR-NTX
Injectable naltrexone will be used, at a dose of 4cc (380mg of naltrexone), administered by intramuscular injection to the buttocks (alternating sides monthly). Individuals will receive monthly injections.
Interventions
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XR-B
Individuals will receive extended-release buprenorphine, administered as a subcutaneous injection, is available in seven different dosage strengths for weekly (8, 16, 24, and 32 mg) and monthly (64, 96, and 128 mg) administration by a health care professional.
XR-NTX
Injectable naltrexone will be used, at a dose of 4cc (380mg of naltrexone), administered by intramuscular injection to the buttocks (alternating sides monthly). Individuals will receive monthly injections.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* History of opioid use disorder (meeting DSM-5 criteria of moderate or severe opioid use disorder at the time of incarceration; individuals not meeting the opioid-disorder criterion will be eligible if they were treated in an opioid agonist treatment program during the year before incarceration)
* Suitability for XR-B and/or XR-NTX treatment as determined by medical evaluation
* Willingness to enroll in XR-B or XR-NTX treatment in jail
* Planning to live in one of the 7 participating counties and/or surrounding counties
Exclusion Criteria
* Active medical illness that may make participation hazardous (e.g., unstable diabetes, heart disease; moderate to severe renal impairment; adequately treated medical conditions are acceptable);
* Conditions or medications that may predispose to QTc prolongation (personal or family history of long QT syndrome, hypokalemia, medications that prolong QTc interval, e.g., macrolide antibiotics, azole antifungal compounds, anti-arrythmics, antipsychotics and antidepressant)
* Untreated psychiatric disorder that may make participation hazardous (e.g., untreated psychosis, bipolar disorder with mania; adequately treated psychiatric disorders and appropriate psychotropic medications will be allowed);
* History of allergic reaction to naltrexone and/or buprenorphine;
* Current chronic pain diagnosis for which opioids are prescribed;
* Pregnancy (for women);
* Breast-feeding (for women);
* Suicidal ideation (within the past 6 months);
* Body Mass Index (BMI) \> 40;
* Inability to pass a study enrollment quiz;
* Currently enrolled in jail-based MOUD pharmacotherapy (methadone, buprenorphine, naltrexone)
* Enrolled in a methadone treatment program in the past 30 days.
18 Years
ALL
No
Sponsors
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Friends Research Institute, Inc.
OTHER
Responsible Party
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Principal Investigators
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Michael S Gordon, DPA
Role: PRINCIPAL_INVESTIGATOR
Friends Research Institute, Inc.
Locations
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Friends Research Institute
Baltimore, Maryland, United States
Countries
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References
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Kornor H, Lobmaier PPK, Kunoe N. Sustained-release naltrexone for opioid dependence. Cochrane Database Syst Rev. 2025 May 9;5(5):CD006140. doi: 10.1002/14651858.CD006140.pub3.
Other Identifiers
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