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ClinicalTrials.gov public records Last synced Oct 22, 2026, 4:55 AM EDT

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Showing 217–240 of 337 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Marijuana Use Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Test of Parent-Focused Cannabis-Related Actions and Practices Intervention for Adolescent Marijuana Abuse

NCT04923230
View directory record Official record
Conditions
Cannabis Use Disorder, Mild, Cannabis Use Disorder, Moderate
Interventions
Cannabis Actions and Practices Resource for Parents
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
13 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 26, 2023 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional

Cannabis Use and Relapse After One Week of Contingency Management Therapy

NCT04202146
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Contingency Management + Motivational Interviewing
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
49 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 Nov 11, 2021 · Synced Oct 22, 2026, 4:55 AM EDT
Recruiting Phase 2 Interventional

A Study of Cannabidiol in Young Adult Cannabis Users

NCT06569394
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Broad Spectrum Cannabidiol (bsCBD) 400 mg, Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 25 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 22, 2026, 4:55 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cannabis Use and Epigenetic Alterations in Human Male Sperm Cells

NCT03614637
View directory record Official record
Conditions
Cannabis Use
Interventions
Cannabis use abstinence for 11 weeks
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Reward and Drug Effects on Mood and Brain Response

NCT04512365
View directory record Official record
Conditions
Cannabis Use, Healthy
Interventions
Placebo oral capsule, THC
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 25 Years
Enrollment
141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Feasibility and Acceptability of the Cannabis Awareness and Prevention Toolkit

NCT05521321
View directory record Official record
Conditions
Cannabis Use
Interventions
Stanford Smart Talk Cannabis Awareness and Prevention curriculum
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
10 Years to 20 Years
Enrollment
658 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 22, 2026, 4:55 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 24, 2019 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional

Contingency Management for Cannabis Use for Persons With HIV

NCT04866004
View directory record Official record
Conditions
Marijuana, HIV Infections
Interventions
Contingency Management - Cannabis
Behavioral
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
2
States / cities
Houston, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Helping Eliminate Marijuana Use Through Pediatric Practice

NCT02744118
View directory record Official record
Conditions
Marijuana
Interventions
5A's Model, Healthy Internet Use Model
Other
Lead sponsor
American Academy of Pediatrics
Other
Eligibility
13 Years to 25 Years
Enrollment
620 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Elk Grove Village, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 9, 2020 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Trial of Contingency Management for Long-Term Cannabis Abstinence

NCT03786224
View directory record Official record
Conditions
Cannabis Use, Adolescent Behavior
Interventions
Contingency Management
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
13 Years to 19 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 2, 2024 · Synced Oct 22, 2026, 4:55 AM EDT
Completed No phase listed Observational

Anxiety Symptoms in Relation to Use of Hemp-derived, Full Spectrum Cannabidiol (CBD)

NCT05023759
View directory record Official record
Conditions
Generalized Anxiety Disorder
Interventions
Formula30A Full Spectrum Hemp Cannabidiol 25mg Capsules
Dietary Supplement
Lead sponsor
Formula30A LLC
Industry
Eligibility
21 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
5
States / cities
Denton, Texas • Edinburg, Texas • Forney, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2021 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional Results available

Computer-delivered Screening & Brief Intervention for Marijuana Use in Pregnancy

NCT02191605
View directory record Official record
Conditions
Marijuana Use, Pregnancy
Interventions
eSBIRT, Tailored texting
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 3, 2018 · Synced Oct 22, 2026, 4:55 AM EDT
Withdrawn Phase 1 Interventional

Trial of Computerized SBI to Reduce Teen Alcohol Use

NCT01784627
View directory record Official record
Conditions
Alcohol Abuse, Cannabis Abuse, Nicotine Dependence
Interventions
c-ASBI
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
9 Years to 20 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
6
States / cities
Boston, Massachusetts • Cambridge, Massachusetts • Lexington, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Reinforcement and Family Training for Early Psychosis (CRAFT-EP) and Substance Use: A Pilot Study

NCT05380583
View directory record Official record
Conditions
Psychosis, Substance Use, Substance Use Disorders, Family, Cannabis, Marijuana, Alcohol, Schizophrenia, Schizoaffective Disorder, Bipolar Disorder, Mental Disorder
Interventions
CRAFT-EP, TAU
Behavioral
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 22, 2026, 4:55 AM EDT
Not yet recruiting Not applicable Interventional

Applying Mixed Methods to Identify Links Between PTSD Symptoms, Cannabis Use, and Functional Behaviors With Personalized Feedback Intervention Development

NCT07721285
View directory record Official record
Conditions
Stress Disorders, Post-Traumatic, Marijuana Abuse
Interventions
Personalized Feedback Session (PFS)
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2031
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

TACUNA (Traditions and Connections for Urban Native Americans)

NCT04617938
View directory record Official record
Conditions
Opioid Use, Alcohol Drinking, Marijuana Use
Interventions
TACUNA plus Wellness Circle, Opioid Education Workshop
Behavioral
Lead sponsor
RAND
Other
Eligibility
18 Years to 25 Years
Enrollment
541 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
3
States / cities
Los Angeles, California • Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 22, 2026, 4:55 AM EDT
Not yet recruiting Not applicable Interventional

Substance Use in Assault-Injured Young Adults

NCT07070414
View directory record Official record
Conditions
Alcohol Misuse, Cannabis Misuse
Interventions
Brief Negotiation Interview intervention (BNI) (adapted)
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 25 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2028
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 22, 2026, 4:55 AM EDT
Withdrawn Phase 2 Interventional

Varenicline for the Treatment of Cannabis and Tobacco Use Disorders in Veterans

NCT05294263
View directory record Official record
Conditions
Tobacco Use Disorder, Cannabis Use Disorder
Interventions
Varenicline, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Oct 22, 2026, 4:55 AM EDT
Withdrawn Phase 1 Interventional

Pilot Study Repetitive Transcranial Magnetic Stimulation (rTMS) in Cannabis Craving

NCT01031290
View directory record Official record
Conditions
Cannabis Use
Interventions
Repetitive Transcranial Magnetic Stimulation
Device
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 22, 2026, 4:55 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Combination of Dronabinol and Clonidine for Cannabis Dependence in Patients With Schizophrenia

NCT01598896
View directory record Official record
Conditions
Cannabis Dependence, Marijuana Dependence
Interventions
Dronabinol, Clonidine, 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 29, 2018 · Synced Oct 22, 2026, 4:55 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Lorcaserin on Cannabis Withdrawal and Self-administration

NCT03253926
View directory record Official record
Conditions
Cannabis Use
Interventions
Lorcaserin, Placebo, Marijuana
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2022 · Synced Oct 22, 2026, 4:55 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Intergenerational Effects of Paternal Periconceptional Cannabis and Other Drug Use (EPIC)

NCT04436055
View directory record Official record
Conditions
Cannabis Use, Drug Use, Development, Infant
Interventions
No Intervention will be used
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 40 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 3, 2023 · Synced Oct 22, 2026, 4:55 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Stress and Pain in People Living With HIV

NCT06784908
View directory record Official record
Conditions
HIV, Depression, Cannabis Use Disorder, Stress, Pain
Interventions
Yale Pain Stress Task (YPST)
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 68 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Oct 22, 2026, 4:55 AM EDT
Terminated Early Phase 1 Interventional Results available

Lorcaserin for Cannabis Use Disorder

NCT03637842
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Lorcaserin, Placebo oral capsule
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 70 Years
Enrollment
5 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 Jan 28, 2021 · Synced Oct 22, 2026, 4:55 AM EDT