38 completed, 8 recruiting, 3 unknown, 2 not yet recruiting. 31 Not applicable, 14 Phase 2, 4 Phase 3, 3 Phase 1, 1 Early Phase 1.
Follow Marijuana Use: new trials by email Literature Review of Marijuana Use trials Research Report on Marijuana Use
Tick up to 5 trials to compare them side by side (eligibility, arms, endpoints, adverse events) in a Literature Matrix.
| Trial | Phase | Status | Sponsor | Enrollment | Start | Updated |
|---|---|---|---|---|---|---|
| LaunchPad: Supporting Healthy Decisions and Preventing Drug Use After High School Introduction, Norms re: Protective Behavior Strategies (PBS), Life Skills - Substance-related Disorders, Alcohol-Related Disorders | Not applicable | Not yet recruiting | Prevention Strategies, LLC | 5000 | 2026-09-01 | 2026-06-25 |
| Developing and Strengthening Cannabis Warnings: Warning Message Testing Constituents, Cognitive Functioning, Cardiovascular Health - Cannabis, Marijuana Use | Not applicable | Completed | University of North Carolina, Chapel Hill | 1750 | 2026-07-31 | 2026-10-06 |
| Neuroimaging of Adolescent Cannabis Use Treatment Contingency Management, Elastic Net Regression - Cannabis Use, Cannabis Dependence | Not applicable | Recruiting | Indiana University | 80 | 2026-06-15 | 2026-06-22 |
| Using Novel Behavioral Economic Measures to Characterize Dual Marijuana and Tobacco Use in Young Adults Cue Reactivity - Behavioral Economics, Cannabis Smoking | Not applicable | Recruiting | Brown University | 120 | 2026-02-17 | 2026-03-04 |
| THC + CBD and Memory Study High THC/No CBD Marihuana, High THC/High CBD Marihuana, No THC/No CBD Marihuana - Marijuana Use, Cannabis Use | Early Phase 1 | Not yet recruiting | Hartford Hospital | 9 | 2025-12-01 | 2025-03-17 |
| Brief Interventions to Reduce Comorbid Alcohol and Cannabis Misuse and Sleep Impairment in Young Adults (Rest-Up RCT) Brief Behavioral Therapy for Insomnia (BBTI), Brief Alcohol Screening and Intervention for College Students (BASICS), Attention Control - Insomnia, Alcohol Use | Not applicable | Recruiting | University of Washington | 800 | 2025-07-02 | 2026-04-14 |
| Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration Cannabis, Nicotine, Pax Loose Leaf Vaporizer - THC, Cannabis | Phase 2 | Recruiting | University of California, San Francisco | 48 | 2025-07-01 | 2026-01-07 |
| Cannabis-Tobacco Co-Use Treatment Study Varenicline, Counseling, Psychosocial modules - Tobacco Use Disorder, Tobacco Use Cessation | Phase 3 | Recruiting | Medical University of South Carolina | 200 | 2025-05-06 | 2026-04-03 |
| Cannabis THC Potency, Metabolism, and Cognitive Impairment in Young Adults 15% THC Potency Reduction, 35% THC Potency Reduction - Cannabis Use, THC | Not applicable | Suspended | University of California, San Francisco | 110 | 2025-03-17 | 2026-04-13 |
| Study on Regulated Cannabis Sales in Pharmacies Regulated cannabis from authorized pharmacies, Cannabis from the illicit market - Marijuana Smoking, Cannabis | Not applicable | Active not recruiting | University of Bern | 1177 | 2024-03-11 | 2026-05-11 |
| Cannabis Consumption and Driving Impairment Assessment on a Closed Course Active smoked cannabis, Placebo smoked cannabis - Cannabis Smoking, Driving Impaired | Phase 2 | Unknown | Bayliss J. Camp, PhD | 300 | 2023-10-03 | 2023-09-29 |
| Reinforcing Effects of Marijuana and Opioids Marijuana, Opioid - Marijuana Use, Opioid Use | Phase 1 | Completed | Shanna Babalonis, PhD | 8 | 2023-08-03 | 2026-04-15 |
| TECH App Marijuana Use Intervention for Court-Involved Adolescents Treatment as usual, Teen Empowerment through Computerized Health (TECH) app - Cannabis Use, Adolescent | Not applicable | Completed | Northwestern University | 60 | 2023-06-21 | 2026-04-30 |
| Varenicline for the Treatment of Cannabis and Tobacco Use Disorders in Veterans Varenicline, Placebo - Tobacco Use Disorder, Cannabis Use Disorder | Phase 2 | Withdrawn | VA Office of Research and Development | 2023-04-17 | 2024-08-27 | |
| Joint Effort 2.0: a Mobile Application With University Students Joint Effort, Brief normative feedback and standard information - Cannabis Use, Cannabis | Not applicable | Completed | Centre hospitalier de l'Université de Montréal (CHUM) | 354 | 2023-02-08 | 2025-03-12 |
| Cannabis Use in Pregnancy and Downstream Effects on Maternal and Infant Health Cannabis use in pregnancy or cannabis exposure in utero - Cannabis Use, Marijuana Use | Completed | Ottawa Hospital Research Institute | 43 | 2022-10-10 | 2025-04-16 | |
| Testing the Efficacy of an Online Treatment Program for Heavy Cannabis Use Online CBT with MET treatment, CBT without MET treatment - Marijuana Use, Marijuana Dependence | Not applicable | Completed | York University | 152 | 2022-08-25 | 2023-12-01 |
| Longitudinal Study of Xenon-129 MRI Imaging Effects of Cannabis Smoking Hyperpolarized Xenon-129 MRI of the lungs, Computed Tomography (CT), Pulmonary Function Tests (PFTs) - Cannabis Use, Cannabis Smoking | Recruiting | Western University, Canada | 200 | 2022-06-01 | 2025-08-15 | |
| Transcranial Magnetic Brain Stimulation to Reduce Cannabis Use in Heavy Cannabis Users iTBS - Cannabis | Not applicable | Recruiting | Duke University | 50 | 2022-06-01 | 2026-07-13 |
| Examining Effects of Domain Specific Episodic Future Thinking on Cannabis Use Domain-Specific Episodic Future Thinking - Marijuana Use, Marijuana Dependence | Not applicable | Unknown | Michael Sofis | 50 | 2022-04-01 | 2022-04-12 |
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Marijuana Smoking (25) · Marijuana Abuse (21) · Alcohol Drinking (14) · Substance-Related Disorders (6) · Tobacco Use Disorder (4) · Smoking (3) · Tobacco Use (3) · Vaping (3) · Behavior (2) · Cigarette Smoking (2) · Psychotic Disorders (2) · Risk-Taking (2) · Sexual Behavior (2) · Sleep Initiation and Maintenance Disorders (2)
Behavior (52) · Mental Disorders (43) · Substance-Related Disorders (37) · Chemically-Induced Disorders (26) · Smoking, Non-Tobacco Products (25) · Smoking (23) · Drinking Behavior (14) · Pathological Conditions, Signs and Symptoms (4) · Disease Attributes (3) · Pathologic Processes (3) · Communicable Diseases (2) · Dyssomnias (2) · Genital Diseases (2) · Health Behavior (2)
nabiximols (6) · Dronabinol (5) · Therapeutics (3) · Varenicline (3) · Ethanol (2) · Hematologic Tests (2) · Mass Screening (2) · Methods (2) · Naltrexone (2) · Amyloid (1) · Analgesics, Opioid (1) · Bronchoscopy (1) · Cognitive Behavioral Therapy (1) · Counseling (1) · Exercise (1)
New York State Psychiatric Institute (4) · RAND (3) · University of California, San Francisco (3) · Brown University (2) · Centre hospitalier de l'Université de Montréal (CHUM) (2) · Johns Hopkins University (2) · Medical University of South Carolina (2) · University of North Carolina, Chapel Hill (2) · University of Washington (2) · Wayne State University (2) · Bayliss J. Camp, PhD (1) · Butler Hospital (1) · California State University, Northridge (1) · Consumer Wellness Solutions (1) · Duke University (1)
United States (41) · Canada (7) · Switzerland (1)
Elizabeth D'Amico, PhD (2) · Margaret Haney, Ph.D. (2) · Ryan Vandrey, Ph.D. (2) · A. Eden Evins, MD (1) · Aimee L. Mcrae-Clark, PharmD (1) · Aimee McRae-Clark, PharmD (1) · Alecia Dager, PhD (1) · Bayliss J Camp, PhD (1) · Chris L Ringwalt, DrPH (1) · Christine Genest, PhD (1) · Daniel Corsi, PhD (1) · Daniel Dickerson, D.O., M.P.H (1) · Daniel Dickerson, DO, MPH (1) · Didier Jutras-Aswad, MD MSN (1) · Didier Jutras-Aswad, MD, MSc (1)
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