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ClinicalTrials.gov public records Last synced Sep 30, 2026, 7:05 AM EDT

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Showing 25–48 of 193 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo naltrexone Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Medications for Stopping Cocaine Dependence and Preventing Relapse

NCT00218023
View directory record Official record
Conditions
Cocaine Abuse, Cocaine-Related Disorders
Interventions
Modafinil, Levodopa/Carbidopa, Naltrexone HCl, Placebo, Motivational Interviewing (MI), Contingency management (CM), Cognitive-Behavioral Therapy (CBT)
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 55 Years
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 9, 2017 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 4 Interventional

Naltrexone, Craving, and Drinking

NCT00006203
View directory record Official record
Conditions
Alcoholism
Interventions
Naltrexone 50 Mg, Placebo
Drug
Lead sponsor
Brown University
Other
Eligibility
21 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jun 13, 2025 · Synced Sep 30, 2026, 7:05 AM EDT
Terminated Phase 2 Interventional Results available

Study of Immunomodulation Using Naltrexone and Ketamine for COVID-19

NCT04365985
View directory record Official record
Conditions
COVID-19, Acute Respiratory Distress Syndrome, Severe Acute Respiratory Syndrome (SARS), Coronavirus Infections
Interventions
Naltrexone, Ketamine, Placebo
Drug · Other
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 26, 2022 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 2 Interventional Results available

The Preventive Treatment of Migraine With Low-Dose Naltrexone and Acetaminophen Combination

NCT03194555
View directory record Official record
Conditions
Migraine With or Without Aura
Interventions
Low-Dose Naltrexone and Acetaminophen Combination, Placebo
Drug
Lead sponsor
Allodynic Therapeutics, Inc
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
North Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 10, 2024 · Synced Sep 30, 2026, 7:05 AM EDT
Recruiting Not applicable Interventional

Low-Dose Naltrexone for the Treatment of Complex Regional Pain Syndrome

NCT02502162
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
LDN, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 2 Interventional

Low Dose Naltrexone to Improve Physical Health in Patients With Vasculitis

NCT03482479
View directory record Official record
Conditions
Eosinophilic Granulomatosis With Polyangiitis (EGPA), Churg-Strauss Syndrome (CSS), Giant Cell Arteritis, Granulomatosis With Polyangiitis, Microscopic Polyangiitis, Polyarteritis Nodosa, Takayasu Arteritis
Interventions
Naltrexone Hydrochloride, Placebo Comparator
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
6
States / cities
Boston, Massachusetts • Rochester, Minnesota • Cleveland, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 4 Interventional Results available

ALK21-018: Effects of Medisorb® Naltrexone (VIVITROL®) on Alcohol Craving in Treatment-seeking, Alcohol-dependent Adults

NCT00511836
View directory record Official record
Conditions
Alcohol Dependence
Interventions
VIVITROL 380 mg, Placebo
Drug
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Sep 30, 2026, 7:05 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 11, 2022 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 3 Interventional Results available

A Research Study of an Investigational Drug ALO-02 (Oxycodone Hydrochloride and Naltrexone Hydrochloride) in Patients With Moderate to Severe Chronic Low Back Pain

NCT01571362
View directory record Official record
Conditions
Chronic Pain, Low Back Pain, Analgesia
Interventions
ALO-02, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
410 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
52
States / cities
Mobile, Alabama • Goodyear, Arizona • Phoenix, Arizona + 38 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2017 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 2 Interventional Results available

Memantine and Naltrexone Treatment for Opioid Dependence

NCT00125515
View directory record Official record
Conditions
Opioid Dependence
Interventions
Memantine, Naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 18, 2018 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Low-Dose Naltrexone Combined With Bupropion to Stop Smoking With Less Weight Gain

NCT00129246
View directory record Official record
Conditions
Smoking, Nicotine Dependence
Interventions
Naltrexone, Bupropion
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 2 Interventional Results available

Low-Dose Naltrexone (LDN) for Depression Relapse and Recurrence

NCT01874951
View directory record Official record
Conditions
Major Depressive Disorder, Depression, Unipolar, Recurrence, Relapse
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 24, 2017 · Synced Sep 30, 2026, 7:05 AM 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 Sep 30, 2026, 7:05 AM EDT
Withdrawn Phase 2 Interventional

Naltrexone in the Treatment of Pyromania

NCT00467454
View directory record Official record
Conditions
Pyromania
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
16 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 14, 2011 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 3 Interventional Results available

A Safety and Efficacy Study of Naltrexone SR/Bupropion SR in Overweight and Obese Subjects

NCT00567255
View directory record Official record
Conditions
Obesity, Overweight
Interventions
Naltrexone SR 32 mg/bupropion SR 360 mg/day, Placebo, Ancillary therapy
Drug · Behavioral
Lead sponsor
Orexigen Therapeutics, Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,496 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
36
States / cities
Phoenix, Arizona • Hot Springs, Arkansas • Carmichael, California + 31 more
Source: ClinicalTrials.gov public record
Updated Nov 21, 2014 · Synced Sep 30, 2026, 7:05 AM EDT
Withdrawn Phase 4 Interventional

Efficacy of Naltrexone HCl/Bupropion HCl Extended Release Versus Placebo for Treatment of Weight Regain in Participants Post Bariatric Surgery

NCT02616315
View directory record Official record
Conditions
Weight Regain Post Bariatric Surgery
Interventions
Naltrexone HCl/Bupropion HCl Placebo, Naltrexone HCl/Bupropion HCl
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Chicago, Illinois • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2016 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 4 Interventional Results available

Managing Alcoholism in People Who Do Not Respond to Naltrexone

NCT00115037
View directory record Official record
Conditions
Alcoholism
Interventions
Naltrexone, placebo, Medication Management (MM), Combined Behavioral Intervention (CBI), Telephone Counseling
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced Sep 30, 2026, 7:05 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Control of Cognition (Naltrexone, Methylphenidate, and ADHD Study (NMAS))

NCT01993108
View directory record Official record
Conditions
Healthy, Attention Deficit Hyperactivity Disorder
Interventions
Methylphenidate, Naltrexone, Placebo
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 35 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 18, 2018 · Synced Sep 30, 2026, 7:05 AM EDT
Withdrawn Phase 2 Interventional

Single-Site Study of Naltrexone/Acetaminophen for the Acute Treatment of Migraine: A Phase 2 Randomized Trial

NCT05685225
View directory record Official record
Conditions
Migraine
Interventions
Stage 1: Naltrexone/Acetaminophen, Stage 1: Naltrexone, Stage 1: Acetaminophen, Stage1: Placebo, Stage 2: Naltrxone/Acetaminophen high dose, Stage 2: Naltrexone/Acetaminophen medium dose, Stage 2: Naltrxone/Acetaminophen low dose, Stage 2: Placebo
Drug
Lead sponsor
Allodynic Therapeutics, Inc
Industry
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
North Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Sep 30, 2026, 7:05 AM EDT
Terminated Phase 4 Interventional Results available

Naltrexone Treatment for Prolonged Grief Disorder (PGD)

NCT04547985
View directory record Official record
Conditions
Prolonged Grief Disorder
Interventions
Naltrexone HCl 50 MG Oral Tablet, Placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 28, 2024 · Synced Sep 30, 2026, 7:05 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Low Dose Naltrexone in Symptomatic Inflammatory Bowel Disease

NCT01810185
View directory record Official record
Conditions
Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
Interventions
Low dose naltrexone, Placebo
Drug
Lead sponsor
Santa Barbara Cottage Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Santa Barbara, California
Source: ClinicalTrials.gov public record
Updated Nov 20, 2014 · Synced Sep 30, 2026, 7:05 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 13, 2026 · Synced Sep 30, 2026, 7:05 AM 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 Sep 30, 2026, 7:05 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 21, 2025 · Synced Sep 30, 2026, 7:05 AM EDT