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ClinicalTrials.gov public records Last synced Oct 5, 2026, 7:54 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 33 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Naltrexone: Vivitrol® Clear all
Completed No phase listed Observational Results available

Real-World Evidence on the Cardiovascular Safety of CONTRAVE® in the United States (U.S.)

NCT06090461
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
Currax Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
31,889 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Brentwood, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Oct 5, 2026, 7:54 PM EDT
Completed Phase 4 Interventional Results available

Extended-Release Naltrexone vs. Buprenorphine for Opioid Treatment

NCT02032433
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Extended-Release Naltrexone, Buprenorphine-Naloxone
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
570 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
8
States / cities
Tarzana, California • Jacksonville, Florida • Rockville, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2020 · Synced Oct 5, 2026, 7:54 PM EDT
Completed Phase 4 Interventional

Rapid Antidepressant Improvement Secondary to Excitatory Brain Responses

NCT04276259
View directory record Official record
Conditions
Major Depressive Disorder, Depression
Interventions
Buprenorphine, Naltrexone, Oral Placebo, IM Placebo, Theta burst stimulation (TBS) of the ventromedial prefrontal cortex.
Drug · Device
Lead sponsor
Marta Peciña, MD PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 5, 2026, 7:54 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 5, 2026, 7:54 PM EDT
Enrolling by invitation No phase listed Observational

A Study to Evaluate the Safety of Exposure to Wegovy During Pregnancy

NCT05503927
View directory record Official record
Conditions
Pregnancy, Obesity, Overweight
Interventions
No Intervention
Other
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
15 Years to 50 Years · Female only
Enrollment
2,701 participants
Timeline
2020 – 2027
U.S. locations
2
States / cities
Ann Arbor, Michigan • Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 5, 2026, 7:54 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 23, 2017 · Synced Oct 5, 2026, 7:54 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 5, 2026, 7:54 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Safety and PK Study of BICX104 With or Without Bupropion Compared to Vivitrol

NCT07269873
View directory record Official record
Conditions
Healthy Adult Male and Female Volunteers
Interventions
BICX104 naltrexone implantable pellet, Bupropion 150 mg XL, Naltrexone (depot)
Drug
Lead sponsor
BioCorRx Pharmaceuticals Inc
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 5, 2026, 7:54 PM EDT
Completed Phase 4 Interventional Results available

Study of Naltrexone-Induced Blockade of Antidepressant Effects

NCT04322526
View directory record Official record
Conditions
Depression, Major Depressive Disorder
Interventions
Naltrexone 50 Mg Oral Tablet, Placebo oral tablet
Drug
Lead sponsor
Marta Peciña, MD PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 21, 2020 · Synced Oct 5, 2026, 7:54 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 22, 2015 · Synced Oct 5, 2026, 7:54 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 5, 2026, 7:54 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 5, 2026, 7:54 PM EDT
Terminated Phase 2 Interventional Results available

Naltrexone RCT for Treatment-Emergent Fatigue in Patients Receiving Radiation Therapy for Breast Cancer

NCT02137252
View directory record Official record
Conditions
Invasive Breast Cancer (Stage I-III), Ductal Carcinoma in Situ, Lobular Carcinoma in Situ, Lobular Carcinoma, Fatigue Related to Cancer Treatment
Interventions
Naltrexone, Sugar Pill
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 16, 2021 · Synced Oct 5, 2026, 7:54 PM EDT
Active, not recruiting Phase 4 Interventional

Sequential Therapy Anti-obesitY Medication With Muscle Preservation for Weight Loss and MaintEnance: A PragmAtic Randomized CoNtrolled Trial (STAY-LEAN Trial)

NCT06854614
View directory record Official record
Conditions
Obesity
Interventions
Comprehensive weight loss, Enhanced lifestyle changes, Tirzepatide, Naltrexone-Bupropion, Phentermine-Topiramate, Semaglutide (Wegovy®)
Other · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
25 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 5, 2026, 7:54 PM 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 14, 2025 · Synced Oct 5, 2026, 7:54 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 5, 2026, 7:54 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 5, 2026, 7:54 PM EDT
Completed Phase 2 Interventional Results available

Combining Pregabalin (LYRICA®) With Lofexidine (LUCEMYRATM) to Treat OPIOID Withdrawal

NCT04218240
View directory record Official record
Conditions
Opioid Withdrawal
Interventions
Pregabalin 200 MG capsules, Placebo oral tablet, Lofexidine 0.18Mg Tab
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 70 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
3
States / cities
Baltimore, Maryland • New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 5, 2026, 7:54 PM EDT
Completed Phase 3 Interventional Results available

Accelerated Development of Additive Pharmacotherapy Treatment (ADAPT-2) for Methamphetamine Use Disorder

NCT03078075
View directory record Official record
Conditions
Methamphetamine Use Disorder
Interventions
Naltrexone: Vivitrol®, Placebo (PLB) Injectable, Bupropion: Wellbutrin XL®, Placebo (PLB) Oral
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
403 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
8
States / cities
Los Angeles, California • San Francisco, California • Minneapolis, Minnesota + 5 more
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Oct 5, 2026, 7:54 PM EDT
Withdrawn Early Phase 1 Interventional

Relapse Prevention in Stimulant Use Disorder

NCT04553263
View directory record Official record
Conditions
Stimulant Use, Relapse, Cognitive Function, ADHD
Interventions
Contrave 8Mg-90Mg Extended-Release Tablet, Bupropion
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 22, 2023 · Synced Oct 5, 2026, 7:54 PM EDT
Active, not recruiting Phase 4 Interventional

Effect of Naltrexone Hydrochloride ER and Bupropion Hydrochloride ER Combination (Contrave®/Mysimba®) on Major Adverse Cardiovascular Events (MACE)

NCT06098079
View directory record Official record
Conditions
Obesity
Interventions
Naltrexone-Bupropion (NB) Combination, Placebo
Drug
Lead sponsor
Currax Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
8,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
140
States / cities
Birmingham, Alabama • Cullman, Alabama • Mobile, Alabama + 111 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Oct 5, 2026, 7:54 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 5, 2026, 7:54 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Study of Fentanyl 400 µg Sublingual Spray, Actiq® 400 µg Transmucosally, and Fentanyl Citrate Injection 100 µg Intravenously (iv)

NCT01780233
View directory record Official record
Conditions
Pain
Interventions
Fentanyl 400 µg sublingual spray, Actiq® 400 µg transmucosally, Fentanyl citrate injection 100 µg intravenously, Naltrexone 50 mg
Drug
Lead sponsor
INSYS Therapeutics Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 31, 2013 · Synced Oct 5, 2026, 7:54 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of PF614 Compared to OxyContin® in Healthy Volunteers (PF614-101)

NCT02454712
View directory record Official record
Conditions
Healthy
Interventions
PF614, Oxycodone extended-release, Naltrexone Hydrochloride
Drug
Lead sponsor
Ensysce Biosciences
Industry
Eligibility
18 Years to 50 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Oct 5, 2026, 7:54 PM EDT