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Showing 1–24 of 126 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Drug Abuse/Dependence Clear all
Completed Phase 2 Interventional Results available

Study of Medical Treatment for Methamphetamine Addiction

NCT00833443
View directory record Official record
Conditions
Methamphetamine, Amphetamine Dependence, Pharmacogenetics, Methamphetamine Dependence, Substance Abuse
Interventions
Bupropion
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 25, 2014 · Synced Jul 21, 2026, 12:39 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Young Adult Tobacco/Nicotine and Cannabis Co-use

NCT06239350
View directory record Official record
Conditions
Tobacco Use Disorder, Nicotine Dependence
Interventions
Counseling, Contingency management, Text-based support
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 25 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 4 Interventional Results available

Dutasteride for the Reduction of Alcohol Use in Male Drinkers

NCT01262287
View directory record Official record
Conditions
Alcoholism, Alcohol Abuse, Alcohol Dependence
Interventions
Dutasteride, Placebo
Drug
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 19, 2017 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 2 Interventional Results available

Study of the Medication Prazosin for Alcohol Dependence

NCT00762710
View directory record Official record
Conditions
Alcoholism
Interventions
Prazosin medication, Placebo medication
Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years and older
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 3, 2020 · Synced Jul 21, 2026, 12:39 PM EDT
Completed No phase listed Observational

Quiting Marijuana Use: Self-report Study of Quitting Straegies and Withdrawal Symptoms

NCT01603992
View directory record Official record
Conditions
Cannabis Abuse, Cannabis Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years and older
Enrollment
822 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
3
States / cities
Baltimore, Maryland • Catonsville, Maryland • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Jul 21, 2026, 12:39 PM EDT
Completed No phase listed Observational

Sustained Release d-Amphetamine & Buprenorphine on Drug Seeking Behavior in Opioid & Cocaine Dependent Individuals

NCT00429767
View directory record Official record
Conditions
Heroin Dependence, Opioid-Related Disorders, Cocaine Abuse or Dependence
Interventions
Not listed
Lead sponsor
Wayne State University
Other
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 4, 2012 · Synced Jul 21, 2026, 12:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Understanding Drug Abuse Treatment Outcomes

NCT01678833
View directory record Official record
Conditions
Drug Abuse/Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years · Male only
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Citicoline on Brain Function and Behavior in Marijuana-Dependent Individuals

NCT00158249
View directory record Official record
Conditions
Marijuana Abuse
Interventions
citicoline, placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2014 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 1Phase 2 Interventional

Dental and Medical Office iMET to Reduce Teen Tobacco, Alcohol, and Drug Use

NCT00907309
View directory record Official record
Conditions
Use; Tobacco, Harmful, Alcohol Abuse, Drug Abuse
Interventions
iMET, iMET/TE
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
12 Years to 21 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 6, 2016 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Addressing Origins of the Opioid Epidemic by Improving Prescribing for Opioid-Naive Patients

NCT03377855
View directory record Official record
Conditions
Opioid Use, Opioid-Related Disorders, Opioid Abuse, Prescription Drug Abuse and Dependency
Interventions
Default Prescribing Change
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 89 Years
Enrollment
948 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 23, 2020 · Synced Jul 21, 2026, 12:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Impact of Delta Opioid Receptor Gene (OPRD1) Variations on Treatment Outcome in African Americans

NCT02225184
View directory record Official record
Conditions
Genetic Underpinning of Substance Abuse, Polymorphism-genetic, Drug Abuse/Dependence, Opiod-Related Disorders
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 2, 2019 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Not applicable Interventional

Employment-based Reinforcement to Motivate Drug Abstinence in the Treatment of Drug Addiction. - 2

NCT00249457
View directory record Official record
Conditions
Behavior, Addictive, Cocaine Abuse, Cocaine Dependence, Heroin Dependence, Opioid Dependence
Interventions
Contingency management
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2006
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 29, 2017 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Opioid Prescribing Nudge

NCT04069403
View directory record Official record
Conditions
Opioid Use, Unspecified, Prescription Drug Abuse (Not Dependent), Prescription Drug Abuse and Dependency, Health Behavior, Benzodiazepine Abuse, Benzodiazepine Dependent
Interventions
Automated Reports on prescription patterns for their patients
Other
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
427 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 29, 2020 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Not applicable Interventional Results available

Study of the Effects of Motivational Enhancement Therapy on Alcohol Use in Chronic Hepatitis C Patients

NCT00596960
View directory record Official record
Conditions
Alcohol Dependence, Chronic Hepatitis C
Interventions
Motivational Enhancement Therapy (MET), Health education
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
2
States / cities
Minneapolis, Minnesota • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 27, 2014 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 2 Interventional

A Placebo-Controlled Trial of Memantine for Alcohol Dependence

NCT00246415
View directory record Official record
Conditions
Alcohol Dependence (Primary Condition), Alcohol Abuse
Interventions
Memantine
Drug
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 7, 2008 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

n-Acetylcysteine and Cocaine

NCT02141620
View directory record Official record
Conditions
Cocaine Abuse, Cocaine Dependence
Interventions
Cocaine, n-Acetylcysteine, Placebo
Drug
Lead sponsor
University of Kentucky
Other
Eligibility
18 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jan 3, 2017 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 1 Interventional

Effectiveness of Cognitive Therapy for Suicide Attempters With Drug Dependence Disorder

NCT00218725
View directory record Official record
Conditions
Suicide, Attempted, Substance-Related Disorders
Interventions
Cognitive Therapy, Enriched Care
Behavioral · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 28, 2015 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 2 Interventional

A Pilot Trial of Dextroamphetamine for Methamphetamine Dependence

NCT00630682
View directory record Official record
Conditions
Methamphetamine Addiction
Interventions
Dextroamphetamine, Placebo
Drug
Lead sponsor
California Pacific Medical Center Research Institute
Other
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 2, 2013 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 1 Interventional

Long Term Maintenance of Drug Abstinence

NCT00842517
View directory record Official record
Conditions
Cocaine Dependence, Cocaine Abuse
Interventions
Contingency Management
Behavioral
Lead sponsor
Treatment Research Institute
Other
Eligibility
18 Years and older
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Not applicable Interventional

fMRI Study of a Dual Process Treatment Protocol With Substance Dependent Adults

NCT01320748
View directory record Official record
Conditions
Substance Abuse, Substance Dependence, Alcohol Abuse, Drug Use, Relapse
Interventions
Dual Processing, Relapse Prevention
Behavioral
Lead sponsor
Inova Health Care Services
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 29, 2018 · Synced Jul 21, 2026, 12:39 PM EDT
Completed No phase listed Observational Results available

Characterizing Methamphetamine Withdrawal in Recently Abstinent Methamphetamine Users: A Pilot Study

NCT00653263
View directory record Official record
Conditions
Methamphetamine Dependence, Methamphetamine Withdrawal
Interventions
Not listed
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jun 27, 2021 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Pharmacogenetic Trial of Doxazosin for Treatment of Cocaine Abuse

NCT01953432
View directory record Official record
Conditions
Cocaine Dependence
Interventions
Doxazosin, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 64 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Jul 21, 2026, 12:39 PM EDT
Not listed Phase 3 Interventional

Medication and Counseling for Controlled Drinking

NCT01115894
View directory record Official record
Conditions
Alcohol Dependence, Alcohol Abuse
Interventions
Naltrexone, Modified Behavioral Self-Control Psychotherapy, Brief Behavioral Compliance Enhancement Therapy, Placebo
Drug · Behavioral
Lead sponsor
Research Foundation for Mental Hygiene, Inc.
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 9, 2012 · Synced Jul 21, 2026, 12:39 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

The Efficacy of Methadyl Acetate (LAAM) and Contingency Management Procedures for Treating Dual Opioid and Cocaine Abuse - 1

NCT00158288
View directory record Official record
Conditions
Behavior Therapy, Cocaine, Contingency Management, Heroin Dependence, LAAM, Opioid Dependence, Substance-Related Disorders, Alcohol & Drug Use
Interventions
LAAM
Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 55 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2001
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Jul 21, 2026, 12:39 PM EDT