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 21, 2026, 3:46 PM 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 67 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Methadone placebo Clear all
Completed Phase 1 Interventional

Drug Discrimination in Methadone-Maintained Humans Study 3

NCT01068847
View directory record Official record
Conditions
Drug Dependence
Interventions
2-4 of the drugs listed below
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
9 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 Mar 7, 2013 · Synced Oct 21, 2026, 3:46 PM EDT
Terminated Not applicable Interventional Results available

A Drug Treatment for Cocaine Users Who Are Also on Methadone Maintenance Treatment

NCT01802515
View directory record Official record
Conditions
Cocaine Dependence, Opiate Dependence
Interventions
Atomoxetine, low dose, Atomoxetine, high dose, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional

Study of the Treatment of Experimental Pain in Opioid Dependent Persons on Methadone or Buprenorphine Maintenance

NCT01642030
View directory record Official record
Conditions
Opioid Dependence, Pain, Addiction
Interventions
Placebo, Hydromorphone, Buprenorphine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 11, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Evaluating MOA-728 in Subjects on Stable Methadone Maintenance

NCT00447811
View directory record Official record
Conditions
Methadone-maintenance Subjects
Interventions
MOA-728
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Willingboro, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 25, 2019 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Early Phase 1 Interventional Results available

Galantamine and CBT4CBT Pilot to Prevent Relapse.

NCT03547622
View directory record Official record
Conditions
Methadone or Buprenorphine Detoxoxification
Interventions
MAT taper with galantamine, MAT taper with placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 19, 2022 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 2 Interventional Results available

Clinical Trial of Topiramate for Cocaine Addiction

NCT00685178
View directory record Official record
Conditions
Cocaine Dependence
Interventions
topiramate, Contingency Reinforcement, placebo + NonCR
Drug · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Recruiting Phase 2Phase 3 Interventional

Divided or Single Exposure (DOSE) Study

NCT05459402
View directory record Official record
Conditions
Opioid Use Disorder, Chronic Pain, Methadone
Interventions
Methadone (100% dose), Methadone (50% dose)
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 100 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Oct 21, 2026, 3:46 PM EDT
Terminated Phase 2 Interventional Results available

Combination Pain Therapy in HIV Neuropathy

NCT00863057
View directory record Official record
Conditions
HIV Infections, Peripheral Neuropathy
Interventions
Duloxetine, Duloxetine placebo, Methadone, Methadone placebo
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
8
States / cities
San Diego, California • Torrance, California • Aurora, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Levetiracetam in Cocaine-Abusing Methadone Maintained Patients

NCT00577005
View directory record Official record
Conditions
Cocaine Dependence, Opioid Dependency
Interventions
levetiracetam, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Mirtazapine and Methamphetamine Drug-drug Interaction Study

NCT04614584
View directory record Official record
Conditions
Methamphetamine Use Disorder, Drug Interaction, Cardiovascular Abnormalities
Interventions
Mirtazapine, Methamphetamine
Drug
Lead sponsor
San Francisco Department of Public Health
Government
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
3
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2024 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional

Cocaine Opioid Oxytocin Option - Limited

NCT02028533
View directory record Official record
Conditions
Opioid Use Disorder, Cocaine Use Disorder
Interventions
Oxytocin, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Oct 21, 2026, 3:46 PM EDT
Terminated Phase 1 Interventional Results available

The Effect of Chronic Pain on Delay Discounting in Methadone Patients

NCT04473950
View directory record Official record
Conditions
Opioid-use Disorder, Chronic Pain Syndrome
Interventions
Naloxone Hydrochloride, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 26, 2025 · Synced Oct 21, 2026, 3:46 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Can Post-operative TAP Block Improve Quality of Recovery After C-sections in Patients on Methadone Maintenance?

NCT01644864
View directory record Official record
Conditions
Uncontrolled Postoperative Pain
Interventions
0.375% ROPIVACAINE, placebo
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 40 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 8, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Hallucinogens and Other Drugs on Mood and Performance

NCT02033707
View directory record Official record
Conditions
Healthy
Interventions
Hallucinogens and psychoactive substances
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 16, 2019 · Synced Oct 21, 2026, 3:46 PM EDT
Terminated Phase 4 Interventional Results available

Adjunct Methadone to Decrease the Duration of Mechanical Ventilation in the Medical Intensive Care Unit

NCT02025855
View directory record Official record
Conditions
Opioid Use, Unspecified With Withdrawal, Opioid-Induced Disorders, Delirium
Interventions
Methadone, Placebo
Drug
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 5, 2025 · Synced Oct 21, 2026, 3:46 PM EDT
Not yet recruiting Phase 3 Interventional

PO Methadone Ortho Outpatient

NCT06351215
View directory record Official record
Conditions
Arthroscopic Knee Repair, Arthroscopic Hip Repair
Interventions
Methadone group, Placebo
Drug
Lead sponsor
Keck School of Medicine of USC
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 5, 2025 · Synced Oct 21, 2026, 3:46 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Oxytocin and Cognitive Behavioral Therapy in Drug Dependence

NCT00975416
View directory record Official record
Conditions
Drug Dependence
Interventions
Cognitive Behavioral Therapy, Intranasal Oxytocin, Placebo
Behavioral · Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 20, 2015 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 2 Interventional Results available

Pharmacogenetics of Disulfiram for Cocaine

NCT00149630
View directory record Official record
Conditions
Cocaine Dependence, Opioid Dependence
Interventions
Disulfiram, Methadone, CBT, Lactose
Drug · Behavioral · Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 64 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Terminated Phase 2 Interventional

Increased Sensitivity to Pain Caused by Opioids in People Who Have Abused Prescription Opioids

NCT01821430
View directory record Official record
Conditions
Chronic Pain
Interventions
Pregabalin, Placebo
Drug
Lead sponsor
Georgetown University
Other
Eligibility
21 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 9, 2017 · Synced Oct 21, 2026, 3:46 PM 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 23, 2025 · Synced Oct 21, 2026, 3:46 PM EDT
Withdrawn Phase 2 Interventional

Combination of an Investigational Cannabinoid and Methadone for HIV-associated Neuropathy

NCT00723918
View directory record Official record
Conditions
HIV-associated Neuropathy, Polyneuropathy
Interventions
SAB378, methadone, SAB placebo, Methadone placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
San Diego, California • Brooklyn, New York • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 9, 2018 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 3 Interventional Results available

Improving Outcomes in Neonatal Abstinence Syndrome

NCT01958476
View directory record Official record
Conditions
Neonatal Abstinence Syndrome, Neonatal Opioid Withdrawal
Interventions
Neonatal Morphine Solution, Methadone, Phenobarbital
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
Not listed
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
8
States / cities
Jacksonville, Florida • Portland, Maine • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2019 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Pharmacotherapy & CM for Opioid and Cocaine Dependence

NCT00838981
View directory record Official record
Conditions
Cocaine Dependence
Interventions
Modafinil, Sugar Pill, Contingency Management, Methadone, cognitive behavioral treatment, Voucher Control
Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 3, 2021 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Not applicable Interventional

Harnessing Placebo Effects in Methadone Treatment

NCT02941809
View directory record Official record
Conditions
Opioid-use Disorder, Opioid-Related Disorders
Interventions
Open-Label Placebo (OLP)
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Oct 21, 2026, 3:46 PM EDT