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ClinicalTrials.gov public records Last synced Oct 21, 2026, 1:04 AM EDT

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Showing 97–120 of 357 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Abuse Cannabis Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Developing and Strengthening Cannabis Warnings: Warning Message Testing

NCT07699198
View directory record Official record
Conditions
Cannabis, Marijuana Use
Interventions
Constituents, Cognitive Functioning, Cardiovascular Health, Motor Vehicle Crashes, Dependence, Psychosis and Schizophrenia, Mental Health, Reproductive Health, Respiratory Health, Edibles, Cannabis Hyperemesis Syndrome, Control
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
1,750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Brain Imaging of Cannabinoid Receptors

NCT03204305
View directory record Official record
Conditions
Cannabis Use Disorder, Cannabis Dependence, Continuous
Interventions
11C-OMAR, Cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 21, 2023 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Motivational Interviews for Incarcerated Teens - 1

NCT00227916
View directory record Official record
Conditions
Alcoholic Intoxication, Marijuana Abuse
Interventions
Behavior Therapy
Behavioral
Lead sponsor
Brown University
Other
Eligibility
14 Years to 19 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Phase 4 Interventional Results available

Nicotine Patch for Marijuana Withdrawal

NCT01400243
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Nicotine, Placebo Patch
Drug
Lead sponsor
Southern Illinois University Carbondale
Other
Eligibility
18 Years to 50 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Carbondale, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 30, 2015 · Synced Oct 21, 2026, 1:04 AM EDT
Recruiting Phase 2 Interventional

Investigating a Marijuana-based Compound as a Treatment for Anxiety in Autistic Adults

NCT06526208
View directory record Official record
Conditions
Autism Spectrum Disorder, Anxiety
Interventions
MB-IMP, Placebo
Drug · Other
Lead sponsor
Southwest Autism Research & Resource Center
Other
Eligibility
18 Years to 45 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Hybrid Effectiveness-Implementation Trial of a School-Based Teen Marijuana Checkup

NCT03111667
View directory record Official record
Conditions
Cannabis Use
Interventions
Teen Marijuana Check Up, Treatment as Usual, Gold Standard Coaching, As Needed Coaching
Behavioral · Other
Lead sponsor
University of Washington
Other
Eligibility
14 Years and older
Enrollment
264 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 15, 2023 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Alcohol, Marijuana, and Risky Sex: Group Interventions With Detained Adolescents

NCT01170260
View directory record Official record
Conditions
Risk Reduction Behavior, Health Behavior, Sexual Behavior, Adolescent Behavior, Cannabis
Interventions
INFORMATION-ONLY SEXUAL RISK REDUCTION (INFO-ONLY), SEXUAL PLUS ALCOHOL RISK REDUCTION (SRRI+ETOH), SEXUAL + ALCOHOL + MARIJUANA RISK REDUCTION
Behavioral
Lead sponsor
University of New Mexico
Other
Eligibility
14 Years to 18 Years
Enrollment
460 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Phase 4 Interventional Results available

Cannabinoids for Pain Control During Medical Abortion

NCT03604341
View directory record Official record
Conditions
Medical Abortion, Pain
Interventions
Dronabinol 5mg Cap, Placebo
Drug · Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
21 Years to 89 Years · Female only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 7, 2020 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Comparison Between Marijuana Smoked in Cigarette Paper Versus Cigar Paper

NCT00374127
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 Sep 1, 2017 · Synced Oct 21, 2026, 1:04 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration

NCT05999383
View directory record Official record
Conditions
THC, Cannabis, Cannabis Use, Cannabis Smoking, Tobacco Use, Vaping
Interventions
Cannabis, Nicotine, Pax Loose Leaf Vaporizer, Placebo Marijuana
Drug · Device · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Phase 4 Interventional Results available

Clozapine for Cannabis Use in Schizophrenia

NCT01639872
View directory record Official record
Conditions
Schizophrenia, Cannabis Abuse, Cannabis Dependence, Dual Diagnosis
Interventions
Clozapine, Risperidone
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
9
States / cities
Garden Grove, California • Oakland, California • Miami, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated May 5, 2020 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Hormones and Reduction in Co-users of Marijuana and Nicotine

NCT02579421
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 26, 2020 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Phase 1Phase 2 Interventional

Comparing the Effects of Smoked and Oral Marijuana in Individuals With HIV/AIDS

NCT00079560
View directory record Official record
Conditions
HIV Infections
Interventions
dronabinol
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Integrated Treatment of Marijuana Abuse for HIV+ Youth

NCT00683488
View directory record Official record
Conditions
HIV Infections
Interventions
Focus Group, First Intervention Trial, Intervention Trial 2
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
16 Years to 24 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
3
States / cities
Los Angeles, California • New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 6, 2017 · Synced Oct 21, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional

RS-tDCS for Cannabis Use Disorder: The C.A.R.E.S. Initiative

NCT07184983
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Active Transcranial Direct Current Stimulation (tDCS), Sham Transcranial Direct Current Stimulation (tDCS), Mindfulness meditation
Device · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
22 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Marijuana Treatment Project - 3

NCT00107588
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Reinforcement for homework completion, Reinforcement for Abstinence, Case Management
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 80 Years
Enrollment
215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 28, 2017 · Synced Oct 21, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional

Feasibility and Acceptability Trial to Reduce Tobacco and Cannabis Use During Pregnancy and Postpartum

NCT07489443
View directory record Official record
Conditions
Perinatal, Cannabis Use, Tobacco Use, Smoking Cessation
Interventions
Perinatal smoking cessation treatment and maintenance sessions
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Effects of Marijuana on Symptoms of OCD

NCT03274440
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Cannabis, Placebo
Drug · Other
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Oct 21, 2026, 1:04 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

THC and CBD: A Controlled Human Study Probing a Harm Reduction Strategy

NCT06859710
View directory record Official record
Conditions
Abuse, Drug, Pain
Interventions
Placebo, THC, CBD 20 mg, CBD 40 mg, CBD 80 mg
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 21, 2026, 1:04 AM EDT
Not yet recruiting Phase 1 Interventional

Cannabis Effects on Opioid Self-Administration

NCT07668635
View directory record Official record
Conditions
Opioid Use Disorder, Cannabis Use
Interventions
Cannabis, Placebo Cannabis, Intranasal Opioid Agonist, Oral Opioid Agonist
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 14, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Not listed Not applicable Interventional

Breathwork-assisted Treatment for Cannabis Use Disorder

NCT05219825
View directory record Official record
Conditions
Addiction, Substance Abuse, Cannabis Use Disorder, Cannabis Use, Cannabis Dependence, Cannabis Abuse
Interventions
Breathwork workshop
Behavioral
Lead sponsor
Elias Dakwar
Other
Eligibility
18 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Not applicable Interventional Results available

Evaluation of Medical Cannabis and Prescription Opioid Taper Support for Reduction of Pain and Opioid Dose in Patients With Chronic Non-Cancer Pain

NCT04827992
View directory record Official record
Conditions
Opioid Use, Pain, Marijuana Use
Interventions
Cannabis, Prescription Opioid Taper Support (POTS)
Drug · Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
3
States / cities
Portland, Maine • Boston, Massachusetts • Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Acute Effects of Cannabis on Cognition and Affect

NCT07296874
View directory record Official record
Conditions
Cannabis Use
Interventions
THC 20mg, Placebo
Drug
Lead sponsor
Washington State University
Other
Eligibility
21 Years and older
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Pullman, Washington
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 21, 2026, 1:04 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Placebo-Controlled Trial of Buspirone for Treatment of Marijuana Dependence

NCT00360191
View directory record Official record
Conditions
Marijuana Abuse
Interventions
Buspirone, Motivational enhancement therapy
Drug · Procedure
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2007
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 12, 2012 · Synced Oct 21, 2026, 1:04 AM EDT