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ClinicalTrials.gov public records Last synced Oct 3, 2026, 6:56 PM EDT

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Showing 1–24 of 51 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Extended release injectable naltrexone (Vivitrol) Clear all
Completed Phase 3 Interventional Results available

Behavioral Naltrexone Therapy for Promoting Adherence to Oral Naltrexone vs Extended Release Injectable Depot Naltrexone

NCT00577408
View directory record Official record
Conditions
Opiate Dependence, Heroin Dependence
Interventions
depot naltrexone, Oral Naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2017 · Synced Oct 3, 2026, 6:56 PM 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 5, 2026 · Synced Oct 3, 2026, 6:56 PM 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 10, 2021 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Phase 4 Interventional Results available

Real World Effectiveness of Combining an Employer-based Weight Management Program With Medication for Chronic Weight Management in Employees With Obesity

NCT03799198
View directory record Official record
Conditions
Obesity
Interventions
Weight Management Program (WMP), Medication for chronic weight management (Rx)
Other · Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 14, 2022 · Synced Oct 3, 2026, 6:56 PM 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 19, 2019 · Synced Oct 3, 2026, 6:56 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Brain Mechanisms of Pharmacotherapy in Opioid Use Disorder

NCT04454411
View directory record Official record
Conditions
Opioid Dependence
Interventions
Brixadi, Vivitrol
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Oct 3, 2026, 6:56 PM 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 7, 2016 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Phase 4 Interventional

Biomarkers of Injectable Extended Release Naltrexone Treatment

NCT02324725
View directory record Official record
Conditions
Heroin Dependence, Opioid Dependence
Interventions
Naltrexone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 12, 2023 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Phase 3 Interventional Results available

Naltrexone for Use in Conjunction With Buprenorphine in Adults With Opioid Use Disorder Prior to First Dose of VIVITROL® (Naltrexone for Extended-Release Injectable Suspension)

NCT02537574
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
NTX/BUP, NTX/PBO-B, PBO-N/PBO-B
Drug
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
380 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
20
States / cities
Oceanside, California • Orange, California • Lauderhill, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2019 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Phase 2 Interventional

Study of Naltrexone for Methamphetamine Addiction

NCT00984360
View directory record Official record
Conditions
Methamphetamine Dependence
Interventions
Naltrexone
Drug
Lead sponsor
California Pacific Medical Center Research Institute
Other
Eligibility
18 Years to 50 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 31, 2013 · Synced Oct 3, 2026, 6:56 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

iSTEP-N 101b: Pharmacokinetics and Safety Study of Low- and High-Dose Naltrexone Implants vs Monthly Vivitrol in Healthy Volunteers

NCT07064564
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Naltrexone implant, 14.4 grams, Naltrexone implant, 9.6 grams, Extended-release naltrexone injection, 380 mg
Drug
Lead sponsor
Akyso Therapeutics, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Millcreek, Utah
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 3, 2026, 6:56 PM 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 7, 2026 · Synced Oct 3, 2026, 6:56 PM EDT
Terminated Phase 4 Interventional Results available

Emergency Department Initiated Extended-Release Naltrexone and Case Management for the Treatment of Alcohol Use Disorder

NCT04094584
View directory record Official record
Conditions
Alcohol Use Disorder, Substance Use, Alcohol Abuse or Dependence
Interventions
Vivitrol (Extended Release Naltrexone)
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
179 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Not applicable Interventional

Delivering Transcutaneous Auricular Neurostimulation to Improve Relapse Prevention in Opioid Use Disorder

NCT05053503
View directory record Official record
Conditions
Opioid-use Disorder, Opioid Withdrawal
Interventions
Sparrow Ascent Therapy System, Lofexidine, Extended-release injectable naltrexone
Device · Drug
Lead sponsor
Spark Biomedical, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
4
States / cities
Rancho Mirage, California • Crownsville, Maryland • Center City, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 4, 2025 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Not applicable Interventional Results available

Risky Decision Making in Methamphetamine Users: The Role of Opioid Blockade

NCT01822132
View directory record Official record
Conditions
Methamphetamine Abuse, HIV
Interventions
Extended release naltrexone, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 55 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced Oct 3, 2026, 6:56 PM 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 23, 2020 · Synced Oct 3, 2026, 6:56 PM 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 13, 2016 · Synced Oct 3, 2026, 6:56 PM 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 29, 2021 · Synced Oct 3, 2026, 6:56 PM EDT
Recruiting Phase 2Phase 3 Interventional Accepts healthy volunteers

Naltrexone for Overdose Prevention

NCT06633900
View directory record Official record
Conditions
Overdose Accidental
Interventions
IM naltrexone, Usual Care
Drug · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 3, 2026, 6:56 PM 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 11, 2022 · Synced Oct 3, 2026, 6:56 PM 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 25, 2021 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Phase 2 Interventional Results available

VIVITROL as a Treatment for Cocaine and Alcohol Dependence

NCT00777062
View directory record Official record
Conditions
Cocaine Dependence, Alcohol Dependence
Interventions
VIVITROL (Naltrexone extended-release injectable suspension), Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 26, 2018 · Synced Oct 3, 2026, 6:56 PM 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 21, 2025 · Synced Oct 3, 2026, 6:56 PM EDT
Completed Phase 3 Interventional Results available

ALK21-021: A Safety Study of Medisorb® Naltrexone (VIVITROL®) Administered to Health Care Professionals

NCT00834080
View directory record Official record
Conditions
Opiate Dependence
Interventions
Medisorb naltrexone 380 mg
Drug
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
11
States / cities
Colton, California • Oceanside, California • Lauderhill, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2018 · Synced Oct 3, 2026, 6:56 PM EDT