63 completed, 17 recruiting, 12 unknown, 9 active not recruiting. 35 Not applicable, 32 Phase 1, 25 Phase 2, 8 Early Phase 1, 5 Phase 3.
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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 |
|---|---|---|---|---|---|---|
| Repeated Administration of Cannabis Varying in THC and CBD Cannabis - Cannabis | Phase 2 | Suspended | New York State Psychiatric Institute | 100 | 2026-10-01 | 2026-09-01 |
| Allergenic Risk Assessment of Hemp Seed blood sample and skin prick tests - Cannabis, Allergens | Not applicable | Not yet recruiting | University Hospital, Angers | 35 | 2026-09-01 | 2026-06-17 |
| A Study of Inhaled Cannabidiol in Healthy Occasional Cannabis Users Cannabis, placebo - Cannabis | Phase 1 / Phase 2 | Not yet recruiting | Centre hospitalier de l'Université de Montréal (CHUM) | 80 | 2026-09-01 | 2025-12-22 |
| Repeated CBD Administration and Cannabis Outcomes Cannabidiol, Medium Dose, Cannabidiol, Higher Dose, Active Inhaled Cannabis - Cannabis, Abuse Liability | Early Phase 1 | Recruiting | Hannah Harris | 23 | 2026-08-05 | 2026-08-12 |
| 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 |
| The Pharmacokinetics of a Hemp-Based Topical Product CBD, THC - Cannabis | Phase 1 | Recruiting | Johns Hopkins University | 20 | 2026-05-26 | 2026-09-03 |
| Cannabis Observations on Brain Waves, Retrieval, and Attention: Experiment 4 Cannabis (smoked flower) - Cannabis, Memory | Recruiting | L. Cinnamon Bidwell | 64 | 2025-12-10 | 2026-07-01 | |
| A Virtual Reality Game to Prevent E-cigarette and Cannabis Vaping Virtual reality videogame intervention for vaping prevention - Cannabis, Vaping | Not applicable | Completed | Yale University | 62 | 2025-09-26 | 2026-02-17 |
| 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 |
| Sex Hormones Impact on Cannabis Response Cannabis, Knaster Hemp - Cannabis | Not applicable | Recruiting | Maastricht University | 21 | 2025-06-01 | 2026-02-18 |
| Nicotine and Cannabis Vape Labeling Experiment - Spring 2025 Vaping Device Labeling - Vaping, Adolescent | Not applicable | Completed | University of Southern California | 3048 | 2025-03-03 | 2026-05-22 |
| Reducing Breathlessness With Dronabinol in COPD Patients Dronabinol 2.5mg Capsule, Placebo - COPD, Breathlessness | Phase 3 | Completed | Vejle Hospital | 30 | 2025-02-26 | 2026-10-05 |
| Effect of Cannabis (Marijuana) on Stomach Emptying Before Surgery Gastric Emptying, Cannabis | Withdrawn | The Guthrie Clinic | 2024-12-01 | 2024-02-14 | ||
| Use of Cannabis Oil in Fibromyalgia Use of cannabis oil - Fibromyalgia, Pain Management | Active not recruiting | Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo di Alessandria | 65 | 2024-10-19 | 2025-09-26 | |
| Cannabis Observations on Brain Waves, Retrieval, and Attention: Experiment 3 Cannabis (smoked flower) - Cannabis, Memory | Completed | L. Cinnamon Bidwell | 96 | 2024-10-09 | 2026-05-12 | |
| Cannabis Edibles and Simulated Driving Cannabis - Placebo Dose (0 mg), Cannabis - Low Dose (2 mg), Cannabis - Medium Dose (10 mg) - Cannabis, Driving Under the Influence | Not applicable | Completed | Centre for Addiction and Mental Health | 52 | 2024-10-01 | 2025-08-03 |
| Delta-8-THC vs. Delta-9-THC on Simulated Driving Performance Delta-9-THC, Delta-8-THC, Placebo - Cannabis | Phase 1 | Completed | Johns Hopkins University | 30 | 2024-07-01 | 2026-07-20 |
| Modulation of THC Effects by CBD: a Dose-ranging Study ∆9-tetrahydrocannabinol - Cannabis, THC | Phase 1 / Phase 2 | Recruiting | Centre hospitalier de l'Université de Montréal (CHUM) | 100 | 2024-06-27 | 2025-12-22 |
| Evaluating Tetrahydrocannabinol as an Adjunct to Opioid Agonist Therapy Aurora 1:1 Drops (Indica), Placebo - Opioid Use Disorder, Methadone | Phase 2 | Recruiting | BC Centre on Substance Use | 24 | 2024-05-23 | 2025-02-17 |
| Age Differences in the Effects of Cannabis on Simulated Driving Cannabis, Placebos - Cannabis | Not applicable | Recruiting | Centre for Addiction and Mental Health | 128 | 2024-03-27 | 2026-03-23 |
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Marijuana Abuse (113) · Alcohol Drinking (5) · Marijuana Smoking (5) · Pain (5) · Psychotic Disorders (5) · Neuralgia (4) · Vaping (4) · Agnosia (3) · Behavior, Addictive (3) · HIV Infections (3) · Schizophrenia (3) · Substance-Related Disorders (3) · Tobacco Use (3) · Alcoholism (2) · Anorexia (2)
Chemically-Induced Disorders (113) · Mental Disorders (111) · Substance-Related Disorders (110) · Behavior (23) · Pathological Conditions, Signs and Symptoms (21) · Nervous System Diseases (19) · Signs and Symptoms (16) · Neurologic Manifestations (13) · Neuromuscular Diseases (7) · Pathologic Processes (7) · Smoking (7) · Central Nervous System Diseases (6) · Drinking Behavior (6) · Musculoskeletal Diseases (6) · Schizophrenia Spectrum and Other Psychotic Disorders (6)
nabiximols (35) · Dronabinol (24) · Cannabidiol (9) · Ethanol (4) · THC 5 (3) · Blood Specimen Collection (2) · Exercise (2) · Medical Marijuana (2) · Neuropsychological Tests (2) · Nicotine (2) · Transcranial Magnetic Stimulation (2) · salicylhydroxamic acid (2) · Cannabinoids (1) · Electrocardiography (1) · Functional Status (1)
Yale University (15) · Johns Hopkins University (9) · University of California, San Diego (5) · Centre hospitalier de l'Université de Montréal (CHUM) (4) · New York State Psychiatric Institute (4) · Duke University (3) · Centre for Addiction and Mental Health (2) · Hadassah Medical Organization (2) · Klein Buendel, Inc. (2) · L. Cinnamon Bidwell (2) · Mclean Hospital (2) · Medical University of Silesia (2) · Medical University of South Carolina (2) · Montefiore Medical Center (2) · National Institute on Drug Abuse (NIDA) (2)
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Ryan Vandrey, PhD (3) · Tory Spindle, PhD (3) · Claudia Campbell, PhD (2) · Deepika E Slawek, MD, MPH, MS (2) · Didier Jutras-Aswad, MD,MS (2) · Nathaniel M Schuster, MD (2) · Bernard Le Foll, MD, PhD (1) · Brook L Henry, PhD (1) · Christina S Meade, PhD (1) · Christine Genest, PhD (1) · Christine Wickens, PhD (1) · Damjan Osredkar, MD, PhD (1) · David Buller, PhD (1) · David Crowley, MD (1) · Deepa Camenga, MD (1)
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