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Showing 1–24 of 91 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: injectable naltrexone Clear all
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 11, 2023 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Project STAMINA (Syringe Service Telemedicine Access for Medication-assisted Intervention Through NAvigation)

NCT04575324
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
Telemedicine Linkage Intervention
Behavioral
Lead sponsor
Chestnut Health Systems
Other
Eligibility
18 Years and older
Enrollment
275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 8, 2024 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Depot Naltrexone Treatment of Opioid Dependent Parolees

NCT00756990
View directory record Official record
Conditions
Opioid Dependence
Interventions
Depot Naltrexone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 55 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 22, 2019 · Synced Sep 3, 2026, 2:37 PM EDT
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 Jul 29, 2026 · Synced Sep 3, 2026, 2:37 PM EDT
Withdrawn Not applicable Interventional

Testing a Primary Care Model for the Treatment of Opioid Dependence Using Long-acting Injectable Naltrexone (Vivitrol).

NCT00675532
View directory record Official record
Conditions
Drug Dependence
Interventions
Primary Care Counseling, Cognitive-behavioral psychotherapy
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 21, 2013 · Synced Sep 3, 2026, 2:37 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 22, 2020 · Synced Sep 3, 2026, 2:37 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 25, 2018 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Treatment Study Using Depot Naltrexone (1/6) Philadelphia Coord/Data Mgmt Site

NCT00781898
View directory record Official record
Conditions
Opiate Addiction
Interventions
Depot naltrexone, Treatment as Usual (TAU)
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 22, 2017 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Not applicable Interventional

The Whole Health Study: Collaborative Care for OUD and Mental Health Conditions

NCT04245423
View directory record Official record
Conditions
Opioid-use Disorder, Mental Health Conditions
Interventions
Collaborative Care for Opioid Use Disorders and Mental Health Conditions, Augmented Usual Care, Collaborative Care for Opioid Use Disorders and Mental Health Conditions Plus Certified Recovery Specialists
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
567 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 3, 2026, 2:37 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 20, 2025 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Long-acting Naltrexone for Pre-release Prisoners

NCT02867124
View directory record Official record
Conditions
Opiate Addiction
Interventions
XR-NTX, place of residence, opioid treatment program
Drug · Other
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Sep 3, 2026, 2:37 PM 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 3, 2026, 2:37 PM EDT
Recruiting Phase 3 Interventional

Emergency Department-Initiated Medications for Alcohol Use Disorder

NCT05827159
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Naltrexone Pill, Naltrexone Injection, Brief Negotiation Interview, Gabapentin Pill
Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 80 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 3, 2026, 2:37 PM 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 3, 2026, 2:37 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 5, 2025 · Synced Sep 3, 2026, 2:37 PM EDT
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 24, 2017 · Synced Sep 3, 2026, 2:37 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 18, 2019 · Synced Sep 3, 2026, 2:37 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 3, 2025 · Synced Sep 3, 2026, 2:37 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 24, 2021 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Early Phase 1 Interventional Results available

Inpatient Single Dose Interventions for Alcohol Use Disorder

NCT04562779
View directory record Official record
Conditions
Alcohol Use Disorder, Severe
Interventions
Naltrexone 380 MG, Ketamine Hydrochloride, Enhanced linkage
Drug · Behavioral
Lead sponsor
Denver Health and Hospital Authority
Other
Eligibility
18 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Phase 3 Interventional Results available

Injectable Pharmacotherapy for Opioid Use Disorders (IPOD)

NCT02110264
View directory record Official record
Conditions
Opioid Use Disorders
Interventions
XR-NTX, XR-NTX+PN, ETAU
Drug · Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 100 Years
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jan 21, 2020 · Synced Sep 3, 2026, 2:37 PM EDT
Active, not recruiting Not applicable Interventional

Promoting Alcohol Treatment Engagement Post-hospitalization

NCT05338151
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Brief Negotiated Interview (BNI), BNI+facilitated provision of MAUD, Brief Negotiated Interview BNI+facilitated provision of MAUD+CBT4CBT
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 3, 2026, 2:37 PM EDT
Not listed Phase 4 Interventional

Bridging ED to Outpatient AUD Therapy With Naltrexone

NCT05228418
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Naltrexone Pill
Drug
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 7, 2022 · Synced Sep 3, 2026, 2:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exploratory Bioavailability of Fentanyl Sublingual Spray Under Fasting Conditions

NCT02138396
View directory record Official record
Conditions
Bioavailability
Interventions
Fentanyl Sublingual Spray (FSS), Fentanyl Citrate Injection (FCI), Naltrexone
Drug
Lead sponsor
INSYS Therapeutics Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2014 · Synced Sep 3, 2026, 2:37 PM EDT