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ClinicalTrials.gov public records Last synced May 21, 2026, 1:18 AM EDT

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Showing 25–48 of 63 matching trials from the local directory fallback.
Local D1 index available.
Filters: Condition: Marijuana Clear all
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Alcohol Drinking, Binge Drinking, Illicit Drug Use, Marijuana Use, Prescription Opioid Misuse, Substance Use
Interventions
iSTART Web-app
Behavioral
Lead sponsor
California State University, Northridge
Other
Eligibility
18 Years to 30 Years
Enrollment
1,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Northridge, California
Source: ClinicalTrials.gov public record
Updated Feb 6, 2024 · Synced May 18, 2026, 9:49 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Alcohol Drinking, Marijuana Usage
Interventions
One day with a dose of active THC cannabis paired with alcohol, One day with a dose of placebo cannabis paired with alcohol
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
21 Years to 40 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced May 11, 2026, 4:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Prenatal Alcohol Exposure, Prenatal Marijuana Exposure, Prenatal Tobacco Exposure
Interventions
Brief Advice, Computer tablet-delivered C4H, Person-delivered C4H
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
219 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 1, 2022 · Synced May 14, 2026, 7:22 PM EDT
Not listed Not applicable Interventional
View directory record Official record
Conditions
Alcohol Use, Unspecified, Marijuana Dependence, Marijuana Use, Tobacco Use
Interventions
Domain-Specific Episodic Future Thinking
Behavioral
Lead sponsor
Michael Sofis
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Sudbury, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 11, 2022 · Synced May 19, 2026, 7:10 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
New York Medical Marijuana Program Qualifying Conditions
Interventions
DNA Genotek Oragene 600
Other
Lead sponsor
Columbia Care Inc.
Other
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 9, 2020 · Synced May 5, 2026, 10:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Progesterone, placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced May 6, 2026, 5:29 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Alcohol Abuse, Cocaine Abuse, Marijuana Abuse
Interventions
Brief Advice, MI-CBT
Behavioral
Lead sponsor
Yale University
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
2
States / cities
Bridgeport, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 14, 2020 · Synced May 10, 2026, 6:02 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Brain Metabolic Changes During Marijuana Abstinence
Interventions
abstinence from use of marijuana and other abused drugs
Other
Lead sponsor
Mclean Hospital
Other
Eligibility
21 Years to 40 Years
Enrollment
37 participants
Timeline
2017 – 2020
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 24, 2020 · Synced May 8, 2026, 3:54 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Smoking, Marijuana
Interventions
CBD
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
3
States / cities
Lexington, Kentucky • New York, New York • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 8, 2019 · Synced Apr 29, 2026, 9:06 AM EDT
Terminated Not applicable Interventional Results available
View directory record Official record
Conditions
Marijuana Abuse, Sleep Initiation and Maintenance Disorders
Interventions
Cognitive Behavioral Therapy for Insomnia (CBT-I), Cognitive Behavioral Therapy for Insomnia Plus Mobile App (CBT-I-MA), Desensitization Treatment for Insomnia
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced May 6, 2026, 8:24 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Marijuana Dependence
Interventions
BRENDA therapy, Dronabinol, Placebo
Behavioral · Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 55 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 28, 2019 · Synced May 21, 2026, 1:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Cognitive-Behavioral Treatment, Contingency Management, Individualized Assessment & Treatment
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 99 Years
Enrollment
198 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 20, 2019 · Synced May 8, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Alcohol Drinking, Marijuana Smoking
Interventions
MI/CBT, RT/SU
Behavioral
Lead sponsor
University of Rhode Island
Other
Eligibility
14 Years to 19 Years
Enrollment
205 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2011
U.S. locations
1
States / cities
Cranston, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 14, 2019 · Synced May 6, 2026, 2:20 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Depression, Marijuana Abuse
Interventions
Placebo, Venlafaxine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced May 5, 2026, 1:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Marijuana Use Disorder
Interventions
High THC marijuana (3.9% THC), Inactive Marijuana (0% THC), Low THC marijuana (1.8 %THC)
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 18, 2018 · Synced May 4, 2026, 1:47 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Alcohol Drinking, Marijuana
Interventions
Text Messaging and Brief Negotiation Interview
Behavioral
Lead sponsor
Yale University
Other
Eligibility
13 Years to 18 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 22, 2018 · Synced May 7, 2026, 12:14 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Active Marijuana (5.5% THC), Active Marijuana (6.2% THC), Inactive Marijuana (0% THC), Naltrexone, Placebo naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 13, 2018 · Synced May 4, 2026, 1:47 PM EDT
Terminated Phase 2Phase 3 Interventional Results available
View directory record Official record
Conditions
Cannabis Dependence, Marijuana Dependence
Interventions
Clonidine, Dronabinol, Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced May 21, 2026, 1:18 AM EDT
Completed Phase 2Phase 3 Interventional Results available
View directory record Official record
Conditions
Cannabis Dependence, Marijuana Dependence
Interventions
Nabilone, Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 31, 2018 · Synced May 21, 2026, 1:18 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Alcohol Use, Marijuana Use, Sexually Transmitted Infections
Interventions
health education, motivational intervention
Behavioral
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 25 Years
Enrollment
566 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 17, 2017 · Synced May 19, 2026, 7:06 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Marijuana blunt, marijuana cigarette
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced May 11, 2026, 4:32 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Marijuana, Placebo oral capsule, Quetiapine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 17, 2017 · Synced May 21, 2026, 1:18 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Attention Deficit and Disruptive Behavior Disorders, Marijuana Abuse
Interventions
Divalproex Sodium, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
12 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2005
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced May 5, 2026, 1:39 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Marijuana Abuse
Interventions
Dronabinol 120mg/day, Dronabinol 30mg/day, Dronabinol 60mg/day, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 2, 2017 · Synced May 21, 2026, 1:18 AM EDT