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Showing 1–24 of 398 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cannabis-Related Disorder Clear all
Completed Phase 2 Interventional Results available

A Study of Tolerability and Efficacy of Cannabidiol on Motor Symptoms in Parkinson's Disease

NCT03582137
View directory record Official record
Conditions
Parkinson Disease
Interventions
Cannabidiol, Placebo
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
40 Years to 85 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 22, 2024 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Nabilone for Cannabis Dependence: A Pilot Study

NCT01347762
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 Sep 13, 2026, 11:49 PM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers

Haloperidol For Outpatient Symptom Management in Patients Diagnosed With Cannabinoid Hyperemesis Syndrome in the Emergrency Department

NCT07726069
View directory record Official record
Conditions
Cannabinoid Hyperemesis Syndrome
Interventions
Haloperidol
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 2 Interventional Results available

Pharmacological Treatment of Comorbid Alcohol and Marijuana Withdrawal and Dependence

NCT02210195
View directory record Official record
Conditions
Cannabis Dependence, Alcohol Dependence, Cannabis Use Disorder, Alcohol Use Disorder
Interventions
aprepitant, Placebo, Manual-guided behavioral counseling
Drug · Behavioral
Lead sponsor
The Scripps Research Institute
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2017 · Synced Sep 13, 2026, 11:49 PM EDT
Completed No phase listed Observational

Investigating Stress-related Mechanisms in the Laboratory and Real World in Individuals With Cannabis Use Disorder

NCT04116619
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Guided Imagery Laboratory Session
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic and Pharmacodynamic Effects of Oral Cannabis

NCT02165176
View directory record Official record
Conditions
Cannabis
Interventions
Oral cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 16, 2018 · Synced Sep 13, 2026, 11:49 PM 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 27, 2017 · Synced Sep 13, 2026, 11:49 PM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers

Research Investigating Drug Effects-2 (RiDE-2)

NCT06758596
View directory record Official record
Conditions
Cannabis Use, Substance Use Disorder (SUD), Healthy
Interventions
Placebo Oral Capsule, THC
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 21 Years
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 18, 2025 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 4 Interventional Results available

Buspirone Treatment for Marijuana Dependence

NCT00875836
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Buspirone, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 9, 2016 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 2 Interventional

Effectiveness of Nefazodone and Bupropion in Treating Marijuana Dependent Individuals

NCT00249509
View directory record Official record
Conditions
Marijuana Abuse
Interventions
Nefazodone, Bupropion
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 15, 2017 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Repeated Cannabis Administration on Experimental Pain and Abuse Liability

NCT04576507
View directory record Official record
Conditions
Cannabis, Pain, Tolerance, Hyperalgesia
Interventions
Active Cannabis, Placebo Cannabis
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Sep 13, 2026, 11:49 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Brain Mechanisms Supporting Cannabis-induced Pain Relief

NCT04982965
View directory record Official record
Conditions
Sciatica, Lumbar Radiculopathy, Lower Back Pain, Degenerative Disc Disease, Chronic Low-back Pain (cLBP), Chronic Low Back and Leg Pain, Back Pain
Interventions
Active Cannabis, Placebo Cannabis
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 13, 2026, 11:49 PM EDT
Not listed No phase listed Observational

The Use of Medicinal Cannabinoids as Adjunctive Treatment for Medically Refractory Epilepsy

NCT02523183
View directory record Official record
Conditions
Epilepsy, Unspecified, Refractory (Medically)
Interventions
Medical Cannabis
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
1 Month to 20 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 13, 2026, 11:49 PM 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 10, 2021 · Synced Sep 13, 2026, 11:49 PM 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 29, 2015 · Synced Sep 13, 2026, 11:49 PM 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 5, 2026 · Synced Sep 13, 2026, 11:49 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Clinical Study to Evaluate the Effects of Oral Delta-9-tetrahydrocannabinol (Δ9-THC) With and Without Alcohol on Perception and Driving Performance in Healthy Adults

NCT07176208
View directory record Official record
Conditions
Cannabis, Drug Effects, Driving Performance
Interventions
5 mg Dronabinol (Marinol®) + Placebo Beverage, 10 mg Dronabinol (Marinol®) + Placebo Beverage, 5 mg Dronabinol (Marinol®) + Alcohol Beverage, 10 mg Dronabinol (Marinol®) + Alcohol Beverage, Placebo Capsule + Alcohol Beverage, Placebo Capsule + Placebo Beverage
Drug
Lead sponsor
Food and Drug Administration (FDA)
Federal
Eligibility
21 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 13, 2026, 11:49 PM EDT
Completed No phase listed Observational Results available

Cannabis Use in Cancer Patients

NCT03617692
View directory record Official record
Conditions
Solid Tumor, Adult
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years to 100 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Aurora, Colorado • Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 13, 2026, 11:49 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Neuroscience of Alcohol and Marijuana Impaired Driving

NCT03431987
View directory record Official record
Conditions
Marijuana Usage, Alcohol Drinking
Interventions
One day with a dose of placebo cannabis paired with alcohol, One day with a dose of active THC 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 Sep 13, 2026, 11:49 PM 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 14, 2023 · Synced Sep 13, 2026, 11:49 PM EDT
Withdrawn No phase listed Observational

Maternal Marijuana Use and Fetal and Infant Outcome

NCT04266314
View directory record Official record
Conditions
Cannabis Use Disorder, Pregnancy Related
Interventions
Maternal-fetal monitoring, NICU Network Neurobehavioral Scale
Device · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 44 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 2 Interventional

Effect of AEF0117 on Treatment-seeking Patients With Cannabis Use Disorder (CUD)

NCT05322941
View directory record Official record
Conditions
Marijuana Abuse
Interventions
AEF0117, Placebo oral capsule
Drug
Lead sponsor
Aelis Farma
Industry
Eligibility
18 Years to 65 Years
Enrollment
333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
11
States / cities
Phoenix, Arizona • Garden Grove, California • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Medical Marijuana on Neurocognition and Escalation of Use

NCT03224468
View directory record Official record
Conditions
Pain, Insomnia, Depression, Anxiety
Interventions
Medical Marijuana
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
269 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 14, 2023 · Synced Sep 13, 2026, 11:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Citicoline on Brain Function and Behavior in Marijuana-Dependent Individuals

NCT00158249
View directory record Official record
Conditions
Marijuana Abuse
Interventions
citicoline, placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2014 · Synced Sep 13, 2026, 11:49 PM EDT