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ClinicalTrials.gov public records Last synced Oct 9, 2026, 12:19 PM EDT

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

Showing 97–120 of 131 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo (for Naltrexone) Clear all
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 Oct 9, 2026, 12:19 PM EDT
Completed Phase 2 Interventional

Trial of Naltrexone and Dextromethorphan for Gulf War Illness

NCT02206490
View directory record Official record
Conditions
Gulf War Illness
Interventions
naltrexone, Dextromethorphan
Drug
Lead sponsor
East Carolina University
Other
Eligibility
18 Years to 100 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 3, 2016 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Cognitive-Behavioral and Pharmacologic (LDX) Treatment of Binge-Eating Disorder and Obesity: Medication Change for Non-Responders

NCT03946111
View directory record Official record
Conditions
Binge-Eating Disorder, Obesity
Interventions
Naltrexone and Bupropion, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 64 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 9, 2026 · Synced Oct 9, 2026, 12:19 PM 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 Oct 9, 2026, 12:19 PM EDT
Recruiting Phase 2 Interventional

Low-Dose Naltrexone for the Treatment of Painful Diabetic Neuropathy

NCT04678895
View directory record Official record
Conditions
Painful Diabetic Neuropathy
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 3 Interventional Results available

Evaluating Naltrexone for Use in Conjunction With Buprenorphine in Adults With Opioid Use Disorder Transitioning From Buprenorphine Maintenance Prior to First Dose of VIVITROL

NCT02696434
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Naltrexone, Placebo, Buprenorphine
Drug
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
9
States / cities
Lauderhill, Florida • Oakland Park, Florida • Winfield, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2019 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 2 Interventional Results available

Harm Reduction With Pharmacotherapy (HaRP)

NCT01932801
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
XR-NTX, Placebo, HRC
Drug · Other · Behavioral
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 65 Years
Enrollment
308 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Oct 9, 2026, 12:19 PM EDT
Enrolling by invitation Phase 4 Interventional

Low Dose Naltrexone Therapy for Complex Regional Pain Syndrome

NCT06306157
View directory record Official record
Conditions
Complex Regional Pain Syndrome, Chronic Pain, Causalgia, Complex Regional Pain Syndrome Type I, Complex Regional Pain Syndrome Type II
Interventions
Low dose naltrexone, Placebo sugar capsules
Drug
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 18, 2026 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effects of Naltrexone on Nocturnal Breathing Patterns at Altitude

NCT05037032
View directory record Official record
Conditions
Altitude, Sleep Apnea, Central
Interventions
Naltrexone Pill, Placebo
Drug
Lead sponsor
VA Loma Linda Health Care System
Federal
Eligibility
18 Years to 35 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Endophenotype for Alcohol Misuse in Healthy Minority Populations

NCT00256451
View directory record Official record
Conditions
Healthy
Interventions
Naltrexone, placebo, alcohol, Sham alcohol
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years and older
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Opioid Modulation and Neural Reward Activation in Healthy Adults

NCT04854551
View directory record Official record
Conditions
Alcohol Drinking, Opioid Use, Unspecified
Interventions
Naltrexone, Placebo
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 35 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 28, 2023 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Early Phase 1 Interventional

A Novel Anti-Obesity Drug Combination as a Pharmacotherapy for Cocaine Dependence

NCT01739192
View directory record Official record
Conditions
Cocaine Use Disorders
Interventions
Bupropion
Drug
Lead sponsor
Craig Rush
Other
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 26, 2018 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 3 Interventional

Naltrexone in Two Models of Psychosocial Treatments for Cocaine and Alcohol Dependence - 1

NCT00218660
View directory record Official record
Conditions
Alcoholism, Cocaine Dependence
Interventions
Naltrexone, BRENDA, CBT, Placebo
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2007
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 22, 2015 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 2 Interventional Results available

Sweet Preference and Alcohol Craving

NCT01296646
View directory record Official record
Conditions
Alcohol Dependence, Alcohol Abuse
Interventions
Naltrexone, Brenda Therapy Sessions, Placebo
Drug · Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 25, 2013 · Synced Oct 9, 2026, 12:19 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 9, 2026, 12:19 PM EDT
Withdrawn Phase 2 Interventional

Low Dose Naltrexone for Chronic Pain in Osteoarthritis and Inflammatory Arthritis

NCT04115020
View directory record Official record
Conditions
Osteoarthritis, Arthritis, Rheumatoid, Arthritis, Psoriatic
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 9, 2020 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy of Naltrexone in Women's Smoking Cessation

NCT00271024
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Naltrexone (drug), Placebo (for Naltrexone)
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 65 Years
Enrollment
333 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Lorcaserin in Combination With XR-Naltrexone for Relapse Prevention in Opioid Use Disorder

NCT03169816
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
Lorcaserin, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 5, 2020 · Synced Oct 9, 2026, 12:19 PM EDT
Terminated Phase 2 Interventional Results available

Low-dose Naltrexone for Bladder Pain Syndrome

NCT04450316
View directory record Official record
Conditions
Bladder Pain Syndrome, Interstitial Cystitis
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 4 Interventional Results available

Treatment for Alcoholism and Post-Traumatic Stress Disorder (Naltrexone)

NCT00006489
View directory record Official record
Conditions
Alcoholism, Alcohol Dependence, Post-Traumatic Stress Disorder
Interventions
Cognitive-Behavioral Therapy, Naltrexone, Placebo
Behavioral · Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 21, 2017 · Synced Oct 9, 2026, 12:19 PM 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 Oct 9, 2026, 12:19 PM EDT
Completed Phase 2 Interventional Results available

Effects of Naltrexone on Nicotine Reinforcement

NCT00270231
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 10, 2013 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 3 Interventional Results available

Effectiveness of Gabapentin When Used With Naltrexone to Treat Alcohol Dependence Compared to Placebo and Naltrexone Alone

NCT00183196
View directory record Official record
Conditions
Alcohol Dependence
Interventions
Naltrexone, Naltrexone plus Gabapentin, Inactive Placebo
Drug · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Oct 9, 2026, 12:19 PM EDT
Completed Phase 2 Interventional Results available

The Effect of Naltrexone and Varenicline on Alcohol-Mediated Smoking Lapse

NCT00773422
View directory record Official record
Conditions
Smoking
Interventions
naltrexone, varenicline, placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 23, 2018 · Synced Oct 9, 2026, 12:19 PM EDT