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Showing 1–24 of 53 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Methadone Maintenance Clear all
Completed Not applicable Interventional

Entry Into Comprehensive Methadone Treatment Via Interim Maintenance

NCT00712036
View directory record Official record
Conditions
Opiate Dependence
Interventions
Interim, Comprehensive, Restored
Behavioral
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 8, 2015 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Activating Community Support for Substance Users

NCT03194295
View directory record Official record
Conditions
Substance Use Disorders
Interventions
Community Support Intervention Group, Substance Use Disorder Educational Group
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 75 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 20, 2020 · Synced Sep 2, 2026, 2:20 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Study Evaluating Oral MOA-728 in Subjects on Methadone Therapy

NCT00505583
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
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 28, 2019 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Disulfiram for Cocaine Abuse

NCT00395850
View directory record Official record
Conditions
Cocaine Dependence
Interventions
Disulfiram
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Nov 12, 2013 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Dose Ranging Study in Healthy Methadone Maintenance Subjects

NCT00387491
View directory record Official record
Conditions
Adult
Interventions
MOA-728
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 24, 2019 · Synced Sep 2, 2026, 2:20 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 7, 2017 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Not applicable Interventional

Evaluating Three Methods for Helping Syringe Exchangers Begin Methadone Maintenance

NCT01142986
View directory record Official record
Conditions
Substance Abuse Disorder
Interventions
Low intensity care, Voucher reinforcement
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
223 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 29, 2018 · Synced Sep 2, 2026, 2:20 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 20, 2019 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 1 Interventional

Treatment of Heroin and Cocaine With Methadone Maintenance and Contingency Management

NCT00292110
View directory record Official record
Conditions
Opiate-Related Disorders, Cocaine-Related Disorders
Interventions
Methadone, Contingency Management, Methadone dose, Contingency Management/Noncontingent Incentives
Drug · Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Not applicable Interventional

HIV and Hepatitis Care Coordination in Methadone Treatment

NCT00608192
View directory record Official record
Conditions
Hepatitis, Viral, Human, HIV Infections
Interventions
Testing, Education, & Counseling (TEC), Hepatitis Care Coordination (HCC)
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
489 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
San Francisco, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 15, 2013 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Double-Blind, Double-Dummy, 2-Period Crossover of a 20-Minute Versus a 4-hour IV of MOA-728 in Stable Methadone Subjects

NCT00444158
View directory record Official record
Conditions
Constipation
Interventions
MOA-728
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 24, 2019 · Synced Sep 2, 2026, 2:20 PM EDT
Terminated Phase 4 Interventional Results available

Anxiety in Recovering Opiate Dependence

NCT00668265
View directory record Official record
Conditions
Generalized Anxiety Disorder, Comorbid Opiate Dependence in Remission, Status Post Methadone-Maintenance Treatment
Interventions
Quetiapine
Drug
Lead sponsor
Beth Israel Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 17, 2013 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Not applicable Interventional

Contingency Outcomes in Prolonged Exposure

NCT01693978
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Substance Use Disorder
Interventions
Prolonged Exposure Therapy, Voucher-Based Reinforcement
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 30, 2016 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Not applicable Interventional

Motivational Program for Smokers Enrolled in a Methadone Maintenance Program

NCT00278226
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
smoking cessation intervention, educational intervention
Behavioral · Other
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
398 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Mar 23, 2010 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 2 Interventional

Incentive-based Smoking Cessation for Methadone Patients

NCT00718835
View directory record Official record
Conditions
Cigarette Smoking Among Patients Currently Receiving Methadone or Buprenorphine Treatment for Opioid Dependence
Interventions
incentive-based contingency management
Behavioral
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 20, 2014 · Synced Sep 2, 2026, 2:20 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Ketamine for OUD and Comorbid Depression (OUDCD)

NCT05051449
View directory record Official record
Conditions
Opioid Use Disorder, Depressive Disorder
Interventions
Ketamine Hydrochloride
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Sep 2, 2026, 2:20 PM EDT
Completed No phase listed Observational

Interactive Voice Response (IVR) for Methadone Patients

NCT00237406
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
interactive voice response
Procedure
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Mar 24, 2010 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Not applicable Interventional Results available

Testing a Community-Friendly Risk Reduction Intervention for Injection Drug Users

NCT01741350
View directory record Official record
Conditions
HIV, Opioid Dependence
Interventions
Community-friendly Health Recovery Program, Time-and-Attention-Matched Control Condition
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years and older
Enrollment
304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 4 Interventional Results available

A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) in Combination With Copegus (Ribavirin) in Patients With Chronic Hepatitis C (CHC) Enrolled in a Methadone Maintenance Treatment Program.

NCT00087594
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
peginterferon alfa-2a [Pegasys], ribavirin
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
7
States / cities
San Francisco, California • Farmington, Connecticut • Honolulu, Hawaii + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2016 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Phase 1 Interventional

Cognitive-Behavioral Therapy for Pain and Opioid Dependence in Methadone Maintenance Treatment

NCT01334580
View directory record Official record
Conditions
Chronic Pain, Opiate Dependence
Interventions
Cognitive-Behavioral Therapy for Pain and Opioid Dependence, Methadone Drug Counseling
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 2, 2020 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Opioid Treatment Program (OTP)-Pharmacy Collaboration for Methadone Maintenance Treatment

NCT04308694
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
Pharmacy-based methadone administration and dispensing
Drug
Lead sponsor
Friends Research Institute, Inc.
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
3
States / cities
Raleigh, North Carolina • Zebulon, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Not applicable Interventional Results available

Secondary HIV Prevention and Adherence Among HIV-infected Drug Users

NCT01741311
View directory record Official record
Conditions
Risk Behavior, Medication Adherence, HIV
Interventions
3H+ (Holistic Health for HIV), HHRP+ (Holistic Health Recovery Program)
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Sep 2, 2026, 2:20 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 10, 2017 · Synced Sep 2, 2026, 2:20 PM EDT
Completed Not applicable Interventional Results available

Testing an Integrated Bio-Behavioral Primary HIV Prevention Intervention Among High-Risk People Who Use Drugs

NCT03282890
View directory record Official record
Conditions
Risk Behavior, HIV/AIDS, Medication Adherence, Substance Abuse
Interventions
CHRP-BB
Other
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years and older
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 16, 2025 · Synced Sep 2, 2026, 2:20 PM EDT