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ClinicalTrials.gov public records Last synced Sep 29, 2026, 2:49 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Opioid antagonist Clear all
Terminated Phase 2 Interventional Results available

Proof-of-Concept Trial of CERC-501 Augmentation of Antidepressant Therapy in Treatment-Resistant Depression

NCT01913535
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
CERC-501, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
4
States / cities
Chicago, Illinois • Wichita, Kansas • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 4 Interventional

Naltrexone Treatment for Alcoholic Women

NCT00000448
View directory record Official record
Conditions
Alcoholism, Eating Disorder
Interventions
naltrexone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2000
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 6, 2014 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Brain Receptor Occupancy in Healthy Subjects

NCT01232439
View directory record Official record
Conditions
Alcohol Dependence
Interventions
opioid receptor kappa antagonist
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 8, 2011 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Medications Development for the Treatment of Cannabis Related Disorders

NCT01204723
View directory record Official record
Conditions
Nicotine Withdrawal, Marijuana Dependence, Cannabis Dependence, Nicotine Dependence, Cannabis Abuse
Interventions
Placebo Aprepitant, Active Aprepitant
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 45 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
2
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 31, 2012 · Synced Sep 29, 2026, 2:49 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 3, 2023 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 4 Interventional Results available

Prevention of Stimulant-Induced Euphoria With an Opioid Receptor Antagonist

NCT01673594
View directory record Official record
Conditions
ADHD, Stimulant-Induced Euphoria
Interventions
SODAS MPH, Naltrexone
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 29, 2016 · Synced Sep 29, 2026, 2:49 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 10, 2022 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 2 Interventional Results available

Glutamatergic Modulation to Facilitate Naltrexone Initiation in Opioid Dependence

NCT02437344
View directory record Official record
Conditions
Opioid Dependence
Interventions
CI-581aa, Naltrexone titration and XR-NTX initiation
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 60 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2019 · Synced Sep 29, 2026, 2:49 AM EDT
Completed No phase listed Observational Results available

Real-World Evidence on the Cardiovascular Safety of CONTRAVE® in the United States (U.S.)

NCT06090461
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
Currax Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
31,889 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Brentwood, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 24, 2025 · Synced Sep 29, 2026, 2:49 AM EDT
Withdrawn Phase 2 Interventional

HIV Risk Reduction and Drug Abuse Treatment in Iran

NCT00398008
View directory record Official record
Conditions
Opiate Dependence, HIV Infections
Interventions
Buprenorphine/Subutex, Naltrexone, Drug counseling
Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 29, 2020 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Evaluation of The Absolute Bioavailability of TH104

NCT06198686
View directory record Official record
Conditions
Healthy
Interventions
Nalmefene
Drug
Lead sponsor
Tharimmune Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 2 Interventional

Entereg Laparoscopic Colon Resection Study

NCT01258569
View directory record Official record
Conditions
Laparoscopic Colonic Resection
Interventions
Entereg, placebo
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 25, 2015 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Study of Long-Acting Injectable Naltrexone to Treat Cannabis Dependence

NCT02088177
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Long-acting injectable naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 2 Interventional Results available

Investigation of Naltrexone for Pathological Gambling

NCT01057862
View directory record Official record
Conditions
Pathological Gambling
Interventions
Naltrexone, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
3
States / cities
Middletown, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Sep 29, 2026, 2:49 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 27, 2023 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Naloxone and Intravenous Methylnaltrexone Effects on Bladder Function

NCT01367561
View directory record Official record
Conditions
Healthy Males
Interventions
Naloxone, IV Methylnaltrexone (MNTX), Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2003
U.S. locations
1
States / cities
Tarrytown, New York
Source: ClinicalTrials.gov public record
Updated Apr 11, 2023 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 2 Interventional Results available

Impact of Colchicine and Low-dose Naltrexone on COVID-19

NCT04756128
View directory record Official record
Conditions
Covid19
Interventions
Colchicine 0.6 mg, Naltrexone
Drug
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
2
States / cities
Saint Louis Park, Minnesota • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Sep 29, 2026, 2:49 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 29, 2026, 2:49 AM EDT
Terminated Phase 3 Interventional

Naloxone Hydrochloride Study for Relief of Pruritus in Patients With MF or SS Forms of CTCL

NCT02811783
View directory record Official record
Conditions
Mycosis Fungoides, Lymphoma, T-Cell, Cutaneous, Sézary Syndrome
Interventions
Naloxone Hydrochloride Lotion, 0.5%, Placebo Lotion
Drug
Lead sponsor
Elorac, Inc.
Industry
Eligibility
21 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
16
States / cities
Little Rock, Arkansas • Duarte, California • Palo Alto, California + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2022 · Synced Sep 29, 2026, 2:49 AM EDT
Terminated Phase 3 Interventional Results available

Cardiovascular Outcomes Study of Naltrexone SR/Bupropion SR in Overweight and Obese Subjects With Cardiovascular Risk Factors (The Light Study)

NCT01601704
View directory record Official record
Conditions
Obesity, Overweight
Interventions
NB32, PBO, Weight Management Program
Drug · Behavioral
Lead sponsor
Orexigen Therapeutics, Inc
Industry
Eligibility
45 Years and older
Enrollment
8,910 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
224
States / cities
Birmingham, Alabama • Dothan, Alabama • Mobile, Alabama + 221 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2017 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 2 Interventional Results available

Methylnaltrexone for Opioid-induced Constipation in Cancer Patients

NCT01004393
View directory record Official record
Conditions
Neoplasms, Constipation, Opioid-Related Disorders
Interventions
Methylnaltrexone bromide
Drug
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 1, 2016 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Phase 2 Interventional Results available

Suvorexant for Opioid/Stimulant Co-use

NCT05546515
View directory record Official record
Conditions
Opioid Use Disorder, Stimulant Use Disorder
Interventions
Suvorexant (dual orexin receptor antagonist), Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Sep 29, 2026, 2:49 AM EDT
Terminated Phase 2 Interventional Results available

Naloxegol in Treating Patients With Stage IIIB-IV Non-small Cell Lung Cancer

NCT03087708
View directory record Official record
Conditions
Stage IIIB Non-Small Cell Lung Cancer, Stage IV Non-small Cell Lung Cancer
Interventions
Naloxegol, Placebo, Laboratory Biomarker Analysis, Quality-of-Life Assessment
Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
660
States / cities
Anchorage, Alaska • Fairbanks, Alaska • Kingman, Arizona + 407 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2025 · Synced Sep 29, 2026, 2:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Youth Opioid Recovery Support: Improving Care Systems

NCT04015115
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Youth Opioid Recovery Support service model
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 26 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 6, 2022 · Synced Sep 29, 2026, 2:49 AM EDT