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ClinicalTrials.gov public records Last synced Oct 1, 2026, 10:23 AM 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 24 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo, then Naltrexone Clear all
Completed Phase 2 Interventional Results available

Effectiveness of Lofexidine to Prevent Stress-Related Opiate Relapse During Naltrexone Treatment - 1

NCT00142909
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Lofexidine, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 30, 2015 · Synced Oct 1, 2026, 10:23 AM 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 1, 2026, 10:23 AM EDT
Completed Phase 2 Interventional Results available

The Effects of Naltrexone on Active Crohn's Disease

NCT00663117
View directory record Official record
Conditions
Inflammation, Crohn's Disease
Interventions
Naltrexone-HCl, Placebo
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2018 · Synced Oct 1, 2026, 10:23 AM 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 1, 2026, 10:23 AM EDT
Completed Phase 2 Interventional Results available

Targeted Interventions for Weight-Concerned Smokers

NCT00105482
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Naltrexone, Transdermal nicotine replacement, Behavioral counseling
Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 5, 2013 · Synced Oct 1, 2026, 10:23 AM EDT
Recruiting Phase 4 Interventional

Naltrexone in AUD Reward Drinkers

NCT05028062
View directory record Official record
Conditions
Alcohol Use Disorder, Alcoholism
Interventions
XR-NTX 380 mg, intramuscular injection, Medical Management, Placebo intramuscular injection
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Oct 1, 2026, 10:23 AM EDT
Withdrawn Phase 4 Interventional

Evaluation of Naltrexone as a Treatment for Self-injurious Behavior

NCT02726035
View directory record Official record
Conditions
Self-injurious Behavior, Self Mutilation
Interventions
Naltrexone, Placebo
Drug · Other
Lead sponsor
Western Michigan University School of Medicine
Other
Eligibility
13 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Oct 1, 2026, 10:23 AM 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 1, 2026, 10:23 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Combination Gerotherapeutic Interventions for Healthspan Improvement

NCT07475546
View directory record Official record
Conditions
Healthspan Improvement, Aging, Longevity
Interventions
Rapamycin, Naltrexone, Metformin, NAD+, GSH, Infinite Supplement, Placebo/control, B12, Intervention: Guided Meditation Program, Control: Podcast Listening Activity, Control: Standard Exercise Regimen, Intervention: Structured Exercise Program
Drug · Dietary Supplement · Behavioral
Lead sponsor
AgelessRx
Industry
Eligibility
60 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Oct 1, 2026, 10:23 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 Oct 1, 2026, 10:23 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

IC PaIN Trial: Interstitial Cystitis Pain Improvement With Naltrexone

NCT04313972
View directory record Official record
Conditions
Interstitial Cystitis, Painful Bladder Syndrome, Bladder Pain Syndrome, Low Dose Naltrexone, Low-dose Naltrexone, Naltrexone
Interventions
low-dose naltrexone, Placebo oral tablet
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 110 Years · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Skokie, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 7, 2025 · Synced Oct 1, 2026, 10:23 AM EDT
Completed Not applicable Interventional Results available

Effects of Low Dose Naltrexone in Fibromyalgia

NCT00568555
View directory record Official record
Conditions
Fibromyalgia, Persian Gulf Syndrome
Interventions
Low Dose Naltrexone, Placebo - sugar pill
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 21, 2015 · Synced Oct 1, 2026, 10:23 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Improving Treatment Outcomes for Prescription Opioid Dependence

NCT02543944
View directory record Official record
Conditions
Drug Dependence
Interventions
Gabapentin, Buprenorphine, Clonidine, Naltrexone (oral), Naltrexone (depot), Placebo
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2022 · Synced Oct 1, 2026, 10:23 AM 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 1, 2026, 10:23 AM EDT
Recruiting Early Phase 1 Interventional

Naltrexone Neuroimaging in Teens With Eating Disorders

NCT05509257
View directory record Official record
Conditions
Eating Disorders, Binge Eating, Purging (Eating Disorders), Bulimia Nervosa, Anorexia Nervosa, Atypical
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
13 Years to 21 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Oct 1, 2026, 10:23 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Oral Naltrexone In Pediatric Eating Disorders

NCT05073679
View directory record Official record
Conditions
Anorexia Nervosa/Bulimia, Anorexia in Adolescence, Anorexia Nervosa, Atypical, Anorexia Nervosa, Binge Eating/Purging Type, Purging (Eating Disorders), Impulsive Behavior, Eating Disorders, Bulimia Nervosa, Eating Disorders in Adolescence
Interventions
Naltrexone Hydrochloride, Control
Drug · Other
Lead sponsor
Rosemary Claire Roden
Other
Eligibility
13 Years to 25 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 19, 2025 · Synced Oct 1, 2026, 10:23 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 Oct 1, 2026, 10:23 AM EDT
Completed Phase 2 Interventional Results available

Low Dose Naltrexone for Chronic Pain From Arthritis

NCT03008590
View directory record Official record
Conditions
Osteoarthritis, Arthritis, Rheumatoid, Arthritis, Psoriatic
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 3, 2021 · Synced Oct 1, 2026, 10:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Attenuation of Pain in Men and Women

NCT01220414
View directory record Official record
Conditions
Pain
Interventions
Naltrexone, then placebo, Placebo, then Naltrexone
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 19, 2018 · Synced Oct 1, 2026, 10:23 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Drug Treatment for Pathologic Gambling Disorder

NCT00053677
View directory record Official record
Conditions
Gambling
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
21 Years to 75 Years
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2005
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Oct 1, 2026, 10:23 AM EDT
Withdrawn Phase 2 Interventional

Treatment of Chronic Itch in Atopic Dermatitis With Opioid Antagonist Naltrexone

NCT04325802
View directory record Official record
Conditions
Atopic Dermatitis, Pruritus, Pruritus Chronic, Dermatitis
Interventions
Naltrexone, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Oct 1, 2026, 10:23 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Naltrexone and Hypoglycemia in Type 1 Diabetes

NCT01053078
View directory record Official record
Conditions
Type 1 Diabetes, Hypoglycemia Unawareness
Interventions
Naltrexone, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 1, 2026, 10:23 AM EDT
Completed Phase 2 Interventional Results available

The Efficacy of Low Dose Naltrexone Therapy in Children With Crohn's Disease

NCT00715117
View directory record Official record
Conditions
Crohn's Disease
Interventions
Naltrexone, Placebo, sugar pill
Drug · Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
6 Years to 17 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 6, 2018 · Synced Oct 1, 2026, 10:23 AM EDT
Completed Phase 1 Interventional

Double-Blind Trial of Ketamine Therapy Plus or Minus Naltrexone in Treatment Resistant Depression (TRD)

NCT02911597
View directory record Official record
Conditions
Depression
Interventions
Naltrexone
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2018 · Synced Oct 1, 2026, 10:23 AM EDT