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ClinicalTrials.gov public records Last synced Sep 28, 2026, 3:32 AM EDT

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Showing 1–24 of 26 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: XR-NTX (Extended-Release Naltrexone) Clear all
Active, not recruiting Phase 2 Interventional

Optimizing Retention, Duration and Discontinuation Strategies for Opioid Use Disorder Pharmacotherapy (RDD)

NCT04464980
View directory record Official record
Conditions
Opioid Use Disorder (OUD)
Interventions
SL-BUP, XR-BUP, XR-NTX, MM, MMR, MMD
Drug · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
1,516 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
21
States / cities
Little Rock, Arkansas • Tarzana, California • Bridgeport, Connecticut + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 4 Interventional

Pre-Release VIVITROL for Opioid Dependent Inmates

NCT01563718
View directory record Official record
Conditions
Substance-Related Disorders
Interventions
naltrexone for extended release injectable suspension
Drug
Lead sponsor
Rhode Island Hospital
Other
Eligibility
18 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 21, 2015 · Synced Sep 28, 2026, 3:32 AM EDT
Completed No phase listed Observational

Reducing Overdose After Release From Incarceration

NCT03902821
View directory record Official record
Conditions
Overdose, Drug
Interventions
XR-NTX and Certified Recovery Mentor
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 100 Years · Female only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Wilsonville, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 4 Interventional Results available

Extended-Release vs. Oral Naltrexone Alcohol Treatment in Primary Care

NCT01893827
View directory record Official record
Conditions
Alcohol Dependence
Interventions
XR-NTX (Extended-Release Naltrexone), Oral Naltrexone (O-NTX)
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 2 Interventional

Extended-Release Naltrexone and Monthly Extended-Release Buprenorphine for Cocaine Use Disorder (CURB-2)

NCT05262270
View directory record Official record
Conditions
Cocaine Use Disorder
Interventions
Extended-Release Naltrexone, Extended Release Buprenorphine, Placebo (PLB) Injectable matched to XR-NTX, Placebo (PLB) Injectable matched to XR-BUP
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
427 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
12
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Not applicable Interventional

Transitions Clinic Network: Post Incarceration Addiction Treatment, Healthcare, and Social Support

NCT04309565
View directory record Official record
Conditions
Opioid Addiction
Interventions
Transitions Clinic Network Primary Care, Standard Primary Care
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
4
States / cities
New Haven, Connecticut • Minneapolis, Minnesota • The Bronx, New York + 1 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 28, 2026, 3:32 AM EDT
Recruiting Phase 4 Interventional

Naltrexone in AUD Reward Drinkers

NCT05028062
View directory record Official record
Conditions
Alcohol Use Disorder, Alcoholism
Interventions
XR-NTX 380 mg, intramuscular injection, Medical Management, Placebo intramuscular injection
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Comparing Treatments for HIV-Infected Opioid Users in an Integrated Care Effectiveness Study (CHOICES) Scale-Up

NCT03275350
View directory record Official record
Conditions
Opioid-use Disorder, Hiv
Interventions
Naltrexone Injectable Suspension, Treatment as usual
Drug · Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
5
States / cities
Tarzana, California • Miami, Florida • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 4 Interventional Results available

Extended-Release Naltrexone Opioid Treatment at Jail Re-Entry

NCT01999946
View directory record Official record
Conditions
Heroin Dependence, Opioid-Related Disorders
Interventions
Extended-Release Naltrexone
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 99 Years
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 4 Interventional Results available

Extended-release Naltrexone and Care Management for Alcohol Dependent Frequent Emergency Department Users

NCT02445339
View directory record Official record
Conditions
Alcohol Dependence, Alcohol Use Disorder
Interventions
XR-NTX+CM (Extended-Release Naltrexone plus Care Management)
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 10, 2022 · Synced Sep 28, 2026, 3:32 AM EDT
Active, not recruiting Phase 2Phase 3 Interventional

Extended Release Naltrexone Versus Extended Release Buprenorphine With Individuals Leaving Jail

NCT04408313
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
XR-B, XR-NTX
Drug
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 28, 2026, 3:32 AM EDT
Active, not recruiting Phase 3 Interventional

Trial of Naltrexone/Bupropion for the Treatment of Methamphetamine Use Disorder

NCT06233799
View directory record Official record
Conditions
Methamphetamine-dependence, Methamphetamine Abuse
Interventions
extended-release naltrexone (XR-NTX), extended release bupropion (BUP-XL) tablets (BUP-XL), iPLB, oPLB
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
11
States / cities
Little Rock, Arkansas • Los Angeles, California • San Diego, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 4 Interventional

Long-acting Buprenorphine vs. Naltrexone Opioid Treatments in CJS-involved Adults

NCT04219540
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
XR-B (SUBLOCADETM), XR-NTX
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
675 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
New Haven, Connecticut • Baltimore, Maryland • Hanover, New Hampshire + 3 more
Source: ClinicalTrials.gov public record
Updated May 13, 2025 · Synced Sep 28, 2026, 3:32 AM EDT
Recruiting Not applicable Interventional

The Youth Opioid Recovery Support (YORS) Intervention

NCT04173416
View directory record Official record
Conditions
Opioid-use Disorder, Medication Adherence
Interventions
Youth Opioid Recovery Support (YORS)
Behavioral
Lead sponsor
Potomac Health Foundations
Other
Eligibility
18 Years to 28 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 23, 2025 · Synced Sep 28, 2026, 3:32 AM EDT
Terminated Phase 2 Interventional Results available

Anti-retroviral Therapy, Medications for Opioid Use Disorder, Opioids and HIV Infection - Study 1

NCT04480554
View directory record Official record
Conditions
Opioid-use Disorder, HIV-1-infection, Immune Activation, Inflammation, Methadone, Buprenorphine, Naltrexone, Antiretroviral Treatment
Interventions
Methadone, Buprenorphine/naloxone, XR-Naltrexone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 4 Interventional Results available

Alcohol Disorder hOsPital Treatment Trial

NCT02478489
View directory record Official record
Conditions
Heavy Drinking, Alcohol Dependence, Alcohol Use Disorder
Interventions
Oral naltrexone (PO-NTX), Extended-release injectable naltrexone (XR-NTX)
Drug
Lead sponsor
Boston University
Other
Eligibility
18 Years and older
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 4 Interventional Results available

Extended Release Naltrexone for Opioid-Dependent Youth

NCT01843023
View directory record Official record
Conditions
Drug Dependence
Interventions
Extended Release Naltrexone, Psychosocial Treatment, Buprenorphine
Drug · Behavioral
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
15 Years to 21 Years
Enrollment
288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 9, 2021 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Not applicable Interventional Results available

Mindfulness-Based Relapse Prevention to Improve Medication Assisted Treatment Adherence and Drug-use Outcomes for Opioid Use Disorder

NCT05042388
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
Mindfulness-Based Relapse Prevention - Rolling Admission (MBRP-RA), Treatment-As-Usual
Behavioral
Lead sponsor
West Chester University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
West Chester, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 2 Interventional

Extended-Release Naltrexone to Treat Methamphetamine Dependence in Men Who Have Sex With Men (MSM)

NCT01449565
View directory record Official record
Conditions
Amphetamine-Related Disorders
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
San Francisco Department of Public Health
Government
Eligibility
18 Years to 65 Years · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 12, 2016 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Not applicable Interventional

Youth Opioid Recovery Support: A Developmentally-specific Intervention for Home Delivery of Extended Release Naltrexone

NCT03306368
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Youth Opioid Recovery Support
Behavioral
Lead sponsor
Potomac Health Foundations
Other
Eligibility
18 Years to 26 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 22, 2021 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Accelerated Development of Additive Pharmacotherapy Treatment for Methamphetamine Use Disorder

NCT01982643
View directory record Official record
Conditions
Methamphetamine Use Disorder
Interventions
naltrexone plus bupropion
Drug
Lead sponsor
Walter Ling
Other
Eligibility
18 Years to 65 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
3
States / cities
Los Angeles, California • Honolulu, Hawaii • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 22, 2020 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Cocaine Use Reduction With Buprenorphine

NCT01402492
View directory record Official record
Conditions
Cocaine Dependence
Interventions
Buprenorphine + Naltrexone, Placebo + Naltrexone
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
11
States / cities
Los Angeles, California • San Francisco, California • Denver, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 3 Interventional Results available

Extended-Release Naltrexone for Opioid Relapse Prevention Following Release From Jail

NCT01180647
View directory record Official record
Conditions
Opiate Dependence
Interventions
Extended-Release Naltrexone, Motivational Enhancement Counseling
Drug · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 60 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 6, 2016 · Synced Sep 28, 2026, 3:32 AM EDT
Completed Phase 3 Interventional Results available

Comparing Treatments for HIV-Infected Opioid and Alcohol Users in an Integrated Care Effectiveness Study

NCT01908062
View directory record Official record
Conditions
Opioid Use Disorder, Alcohol Use Disorder
Interventions
Extended Release Naltrexone, Treatment As usual
Drug · Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 100 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 18, 2019 · Synced Sep 28, 2026, 3:32 AM EDT