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ClinicalTrials.gov public records Last synced Sep 26, 2026, 5:59 AM EDT

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Showing 1–24 of 58 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: oral placebo naltrexone Clear all
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 6, 2025 · Synced Sep 26, 2026, 5:59 AM EDT
Terminated Phase 4 Interventional Results available

Safety Study to Assess Opiate Withdrawal Signs and Symptoms in Opioid Dependent Patients

NCT01100437
View directory record Official record
Conditions
Chronic Pain
Interventions
EMBEDA™ (morphine sulfate/naltrexone hydrochloride) crush, EMBEDA™ (morphine sulfate/naltrexone hydrochloride) whole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
21 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 12, 2012 · Synced Sep 26, 2026, 5:59 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Examining Mu Opioid Mechanisms of Ketamine's Rapid Effects in OCD (MKET2)

NCT05940324
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Ketamine, Naltrexone Pill, Placebo pill
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 26, 2026, 5:59 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 4, 2013 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Not applicable Interventional Results available

Pilot Trial of Naltrexone for Obesity in Women With Schizophrenia

NCT00793780
View directory record Official record
Conditions
Obesity, Schizophrenia, Schizoaffective Disorder
Interventions
Naltrexone 25mg, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 5, 2016 · Synced Sep 26, 2026, 5:59 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 5, 2026 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Intermittent Oral Naltrexone Enhanced With an Ecological Momentary Intervention for Methamphetamine-using MSM

NCT04791969
View directory record Official record
Conditions
Methamphetamine Use Disorder
Interventions
Naltrexone Hydrochloride, Placebo, Ecological Momentary Intervention
Drug · Behavioral
Lead sponsor
Glenn-Milo Santos
Other
Eligibility
18 Years to 70 Years · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 26, 2025 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Addiction Treatment in Russia: Oral vs. Naltrexone Implant

NCT00218426
View directory record Official record
Conditions
Heroin Dependence, Opioid-Related Disorders
Interventions
naltrexone implant, oral naltrexone, oral placebo naltrexone, placebo implant
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 50 Years
Enrollment
306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 17, 2019 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Naltrexone-Bupropion-Methamphetamine Interaction Study

NCT01359930
View directory record Official record
Conditions
Methamphetamine Dependence
Interventions
placebo, Naltrexone and Bupropion SR
Other · Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 50 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 3 Interventional

A Study to Evaluate Safety and Efficacy Following Dosing of Oxycodone/Naltrexone for Treatment of Adults With Pain Following Bunionectomy Surgery

NCT02401750
View directory record Official record
Conditions
Pain
Interventions
Oxycodone Naltrexone (a), Oxycodone Naltrexone (b), Placebo
Drug
Lead sponsor
Elite Laboratories, Inc
Industry
Eligibility
18 Years to 75 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
5
States / cities
Phoenix, Arizona • Pasadena, Maryland • Austin, Texas + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2016 · Synced Sep 26, 2026, 5:59 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 20, 2020 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 3 Interventional

Medication and Counseling for Controlled Drinking (Project SMART)

NCT00444418
View directory record Official record
Conditions
Alcohol-related Disorders, Alcohol Drinking, Alcoholism, Alcohol Abuse
Interventions
Naltrexone, Modified Behavioral Self-Control Psychotherapy, Brief Behavioral Compliance Enhancement Therapy
Drug · Behavioral
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years to 65 Years · Male only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 30, 2013 · Synced Sep 26, 2026, 5:59 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 24, 2025 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 4 Interventional

Targeted Naltrexone for Problem Drinkers

NCT00369408
View directory record Official record
Conditions
Alcoholism, Alcohol Drinking, Alcohol Dependence
Interventions
Naltrexone, placebo
Drug
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 70 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 19, 2011 · Synced Sep 26, 2026, 5:59 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 5, 2017 · Synced Sep 26, 2026, 5:59 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 25, 2022 · Synced Sep 26, 2026, 5:59 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 17, 2018 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of Human Non-Shivering Thermogenesis and Basal Metabolic Rate

NCT01950520
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Propranolol, Pindolol, Dantrolene, Magnesium Sulfate, Caffeine, Qsymia, Topiramate, Phentermine, Naltrexone, Mirabegron 50mg, Mirabegron 200mg, Placebo Cohort 1, Placebo Cohort 2, Placebo for Mirabegron
Drug · Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 35 Years · Male only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Not applicable Interventional Results available

Naltrexone for Antipsychotic-Induced Weight Gain

NCT01866098
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder, Bipolar Disorder, Severe Major Depression With Psychotic Features
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 75 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 30, 2021 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Targeting GABA and Opioid Systems for a Pharmacotherapy for Methamphetamine Abuse

NCT01967381
View directory record Official record
Conditions
Methamphetamine Abuse, Methamphetamine Dependence
Interventions
Methamphetamine (Desoxyn®)
Drug
Lead sponsor
University of Kentucky
Other
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 13, 2018 · Synced Sep 26, 2026, 5:59 AM EDT
Not listed Phase 3 Interventional

Phase III Trial Assessing the Efficacy and Safety of PXT3003 in CMT1A Patients

NCT04762758
View directory record Official record
Conditions
Charcot-Marie-Tooth Disease
Interventions
(RS)-baclofen, naltrexone hydrochloride and D-sorbitol, Placebo
Drug
Lead sponsor
Pharnext S.C.A.
Other
Eligibility
16 Years to 65 Years
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
20
States / cities
Los Angeles, California • Sacramento, California • New Britain, Connecticut + 16 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2024 · Synced Sep 26, 2026, 5:59 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 27, 2024 · Synced Sep 26, 2026, 5:59 AM EDT
Completed Phase 2 Interventional

Naltrexone and Clonidine Combination (ATNC05) in the Treatment of Chronic Back Pain

NCT01415895
View directory record Official record
Conditions
Back Pain, Lower Back Pain, Cervical Pain
Interventions
Naltrexone and Clonidine Combination, placebo
Drug
Lead sponsor
Annette C. Toledano MD
Industry
Eligibility
19 Years to 70 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
North Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Sep 26, 2026, 5:59 AM 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 24, 2013 · Synced Sep 26, 2026, 5:59 AM EDT