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ClinicalTrials.gov public records Last synced Oct 20, 2026, 11:41 PM EDT

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Showing 49–72 of 357 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Abuse Cannabis Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Sex Differences in Attentional Bias in Marijuana-dependent Individuals

NCT01179425
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Cognitive stressor
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 14, 2011 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Comparison of the Analgesic Effects of Dronabinol and Smoked Marijuana in Daily Marijuana Smokers

NCT00743119
View directory record Official record
Conditions
Pain Threshold, Mood
Interventions
Placebo capsules, Inactive marijuana (0% THC), Low dose Dronabinol, High dose Dronabinol, Low THC marijuana, High THC marijuana
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 11, 2017 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Reinforcing Effects of Marijuana and Opioids

NCT05485012
View directory record Official record
Conditions
Marijuana Use, Opioid Use
Interventions
Marijuana, Opioid
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Not applicable Interventional Results available

Screening to Augment Referral to Treatment- Project START

NCT01539525
View directory record Official record
Conditions
Alcohol Abuse, Tobacco Use Disorder, Marijuana Abuse, Substance-Related Disorders
Interventions
Motivational Interview, Treatment as Usual
Behavioral · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
439 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 14, 2017 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Ph1 Marinol Interaction Study - Part 2 - 1

NCT00490269
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Placebo, Dronabinol
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 20, 2026, 11:41 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Cannabis THC Potency, Metabolism, and Cognitive Impairment in Young Adults

NCT06077292
View directory record Official record
Conditions
Cannabis Use, THC, Marijuana Use, Cognitive Impairment, THC Vaping
Interventions
15% THC Potency Reduction, 35% THC Potency Reduction
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 25 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 20, 2026, 11:41 PM 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 20, 2026, 11:41 PM EDT
Completed Phase 1Phase 2 Interventional Results available

An Open-Label Trial of N-Acetylcysteine in Cannabis Dependent Adolescents

NCT00542750
View directory record Official record
Conditions
Cannabis Dependence
Interventions
N-Acetylcysteine
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
12 Years to 20 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Not applicable Interventional

Treatment for Teens With Alcohol Abuse and Depression

NCT02227589
View directory record Official record
Conditions
AOD Use, Abuse, and Dependence, Depression
Interventions
MET/CBT-12, CBT-D, D-TAU
Behavioral · Other
Lead sponsor
Duke University
Other
Eligibility
13 Years to 263 Months
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
2
States / cities
Farmington, Connecticut • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Smoked THC and CBD in Men and Women

NCT05037487
View directory record Official record
Conditions
Drug Abuse, Intoxication by Drug, Impairment
Interventions
Placebo Cannabis, 20 mg CBD Cannabis, 20 mg CBD + 20 mg THC Cannabis, 20 mg THC Cannabis
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 20, 2026 · Synced Oct 20, 2026, 11:41 PM 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 20, 2026, 11:41 PM EDT
Completed No phase listed Observational Results available

Pain Research: Innovative Strategies With Marijuana

NCT03522324
View directory record Official record
Conditions
Chronic Pain, Chronic Low Back Pain, Cannabis Use
Interventions
Cannabis Edible
Drug
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
21 Years to 70 Years
Enrollment
268 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Oct 20, 2026, 11:41 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Cannabis Use, Cognition, and the Endocannabinoid System in HIV

NCT04883255
View directory record Official record
Conditions
HIV-1-infection
Interventions
10 mg Δ9-tetrahydrocannabinol (THC), 600 mg cannabidiol (CBD), Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 65 Years
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 20, 2026, 11:41 PM EDT
Completed 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 Sep 30, 2026 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

The Effect of Prescription Medications in Marijuana Users

NCT00893074
View directory record Official record
Conditions
Marijuana Abuse
Interventions
Dronabinol 30mg/day, Dronabinol 60mg/day, Dronabinol 120mg/day, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2017 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Intervening to Prevent Youth Access to Marijuana Phase II

NCT03073291
View directory record Official record
Conditions
Cannabis
Interventions
Responsible Marijuana Vendor Training
Behavioral
Lead sponsor
Klein Buendel, Inc.
Industry
Eligibility
21 Years and older
Enrollment
448 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Oakland, California • Golden, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 12, 2019 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Phase 4 Interventional

Improving Substance Use and Clinical Outcomes in Heavy Cannabis Users With Quetiapine

NCT01153490
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Behavioral Intervention
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 65 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
Glen Oaks, New York • Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Apr 17, 2018 · Synced Oct 20, 2026, 11:41 PM 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 20, 2026, 11:41 PM EDT
Terminated Phase 1Phase 2 Interventional

Cannabis for Spasticity in Multiple Sclerosis

NCT00260741
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Smoked Cannabis
Drug
Lead sponsor
Center for Medicinal Cannabis Research
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 4, 2007 · Synced Oct 20, 2026, 11:41 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 Sep 1, 2026 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Inhaled Cannabis on Driving Performance

NCT01620177
View directory record Official record
Conditions
Alcohol Drinking, Cannabis
Interventions
Alcohol(oral) and placebo, Cannabis(THC)(Inhaled) and Placebo
Drug
Lead sponsor
Gary R Gaffney
Other
Eligibility
21 Years to 55 Years
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Phase 2 Interventional Results available

Therapeutic Substance Abuse Treatment in Pregnancy - 1

NCT00227903
View directory record Official record
Conditions
Alcohol Abuse, Cocaine Abuse, Marijuana Abuse
Interventions
MI-CBT, Brief Advice
Behavioral
Lead sponsor
Yale University
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
2
States / cities
Bridgeport, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 15, 2020 · Synced Oct 20, 2026, 11:41 PM EDT
Completed Not applicable Interventional Results available

Effect of Oxytocin on Stress in Marijuana Users

NCT01335789
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Oxytocin, Saline
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 14, 2015 · Synced Oct 20, 2026, 11:41 PM EDT
Withdrawn Phase 2Phase 3 Interventional Accepts healthy volunteers

Integration of (iSBIRT) for Teen Drug Use Into a Pediatric Network

NCT01454206
View directory record Official record
Conditions
Substance Use
Interventions
iSBIRT
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
12 Years to 18 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Oct 20, 2026, 11:41 PM EDT