Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 5, 2026, 11:41 PM EDT

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

Showing 25–48 of 137 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo (for Naloxone) Clear all
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 5, 2026, 11:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Understanding How Opioids Affect the Experiential and Neural Signatures of Social Experiences

NCT05007561
View directory record Official record
Conditions
Naltrexone, Placebo
Interventions
Naltrexone Hydrochloride, Placebo
Drug
Lead sponsor
San Diego State University
Other
Eligibility
18 Years to 25 Years
Enrollment
217 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 5, 2026, 11:41 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 5, 2026, 11:41 PM EDT
Completed Phase 2Phase 3 Interventional

Low-Dose Naltrexone and Acetaminophen Combination and Sumatriptan in the Acute Treatment of Migraine With Nausea

NCT03185143
View directory record Official record
Conditions
Migraine With and Without Aura
Interventions
Naltrexone and Acetaminophen Combination, Sumatriptan 100 mg, Placebo
Drug
Lead sponsor
Allodynic Therapeutics, Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
36 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 14, 2021 · Synced Oct 5, 2026, 11:41 PM EDT
Completed Phase 2 Interventional Results available

Naltrexone in the Treatment of Trichotillomania

NCT00775229
View directory record Official record
Conditions
Trichotillomania
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 75 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Oct 5, 2026, 11:41 PM EDT
Completed Phase 4 Interventional Results available

Understanding Treatment Response With Naltrexone Among White Alcoholics

NCT00817089
View directory record Official record
Conditions
Alcoholism
Interventions
Placebo Oral Tablet, Naltrexone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 64 Years · Male only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 21, 2019 · Synced Oct 5, 2026, 11:41 PM EDT
Completed Phase 2 Interventional Results available

Induction of Opioid-Dependent Individuals Onto Buprenorphine and Buprenorphine/Naloxone

NCT00637000
View directory record Official record
Conditions
Opioid-related Disorders
Interventions
Buprenorphine soluble film, Buprenorphine/naloxone film strip, Placebo
Drug
Lead sponsor
Indivior Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 5, 2017 · Synced Oct 5, 2026, 11:41 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 5, 2026, 11:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Prazosin and Naltrexone (PaN) Study for Veterans With Alcohol Use Disorders

NCT02322047
View directory record Official record
Conditions
Alcohol Use Disorder, Posttraumatic Stress Disorder (PTSD)
Interventions
Prazosin, Naltrexone, Placebo (Prazosin), Placebo (Naltrexone)
Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years to 80 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 29, 2020 · Synced Oct 5, 2026, 11:41 PM EDT
Completed Phase 2 Interventional

Cariprazine for Comorbid Cocaine and Opioid Use Disorder

NCT05063201
View directory record Official record
Conditions
Opioid-use Disorder, Cocaine Use Disorder
Interventions
Cariprazine 1.5 MG, Placebo
Drug
Lead sponsor
Kyle Kampman
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 23, 2026 · Synced Oct 5, 2026, 11:41 PM EDT
Completed Phase 3 Interventional

Combined Pharmacotherapies for Alcoholism

NCT00768508
View directory record Official record
Conditions
Alcoholism
Interventions
Ondansetron 4 ug/kg b.i.d. + Cognitive Behavioral Therapy, Naltrexone 50 mg/day + Cognitive Behavioral Therapy, Ondansetron 4 ug/kg b.i.d.+ Naltrexone 50 mg/day + Cognitive Behavioral Therapy, Placebo + Cognitive Behavioral Therapy
Drug · Other
Lead sponsor
Bankole Johnson
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
2
States / cities
Charlottesville, Virginia • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 15, 2013 · Synced Oct 5, 2026, 11:41 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Ketamine for the Rapid Treatment of Major Depressive Disorder and Alcohol Use Disorder

NCT02461927
View directory record Official record
Conditions
Major Depressive Disorder, Alcohol Use Disorder
Interventions
Ketamine + Naltrexone, Ketamine + Placebo, Placebo (psychoactive placebo midazolam) + Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 10, 2025 · Synced Oct 5, 2026, 11:41 PM 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 5, 2026, 11:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Better Than Study: Targeting Heavy Alcohol Use With Naltrexone Among Men Who Have Sex With Men (MSM)

NCT02330419
View directory record Official record
Conditions
Binge Drinking, HIV
Interventions
Placebo, Naltrexone, Medical Management (MM) counseling for alcohol use:, Urinalysis for novel alcohol biochemical markers:, Behavioral survey measurements:, Dried Blood Spot (DSB) Testing for Phosphatidylethanol, Ecological Momentary Assessment
Drug · Behavioral · Diagnostic Test
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 70 Years · Male only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 20, 2025 · Synced Oct 5, 2026, 11:41 PM 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 5, 2026, 11:41 PM EDT
Recruiting Phase 3 Interventional

Standard Versus High Dose ED-Initiated Buprenorphine Induction

NCT06494904
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Buprenorphine
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
5
States / cities
Oakland, California • San Leandro, California • Portland, Maine + 2 more
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Oct 5, 2026, 11:41 PM EDT
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 Oct 5, 2026, 11:41 PM EDT
Completed Phase 2 Interventional Results available

Effects of Gabapentin Versus Placebo on Buprenorphine Detoxification of Opioid-dependent Individuals

NCT01262092
View directory record Official record
Conditions
Opioid Dependence, Opioid Withdrawal, Opioid Detoxification
Interventions
Buprenorphine
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jun 21, 2013 · Synced Oct 5, 2026, 11:41 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 5, 2026, 11:41 PM EDT
Completed Phase 1 Interventional

Combining Medications for the Treatment of Alcohol Dependence: An Inpatient Preliminary Study

NCT00769158
View directory record Official record
Conditions
Alcoholism
Interventions
Topiramate and Naltrexone, Placebo
Drug · Other
Lead sponsor
Bankole Johnson
Other
Eligibility
21 Years to 45 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
2
States / cities
Charlottesville, Virginia • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 7, 2012 · Synced Oct 5, 2026, 11:41 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 5, 2026, 11:41 PM EDT
Completed Phase 2 Interventional

Efficacy and Safety Study of Combination Therapy to Treat Uncomplicated Obesity

NCT00364871
View directory record Official record
Conditions
Obesity
Interventions
naltrexone and bupropion SR
Drug
Lead sponsor
Orexigen Therapeutics, Inc
Industry
Eligibility
18 Years to 60 Years
Enrollment
410 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
7
States / cities
San Diego, California • Augusta, Georgia • Lexington, Kentucky + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2008 · Synced Oct 5, 2026, 11:41 PM 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 Oct 5, 2026, 11:41 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Medications Development for Drug Abuse Disorders

NCT01188421
View directory record Official record
Conditions
Opioid Related Disorders, Opioid Dependence, Opioid Addiction
Interventions
Buprenorphine/naloxone, Clonidine, Tramadol ER
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 60 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 6, 2017 · Synced Oct 5, 2026, 11:41 PM EDT