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ClinicalTrials.gov public records Last synced Oct 22, 2026, 1:04 AM EDT

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Showing 193–216 of 337 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Marijuana Use Clear all
Recruiting Not applicable Interventional

A Brief Intervention for Cannabis Use

NCT06395389
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Health Education (HealthEdu), Bloom
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 25 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Quetiapine on Marijuana Withdrawal and Relapse

NCT00743366
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Marijuana, Quetiapine, Placebo oral capsule
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 18, 2017 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Targeting Tobacco Cessation During Treatment for Cannabis Use Disorders

NCT01834794
View directory record Official record
Conditions
Cannabis Dependence
Interventions
MET/CBT/CM plus NRT
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Concord, New Hampshire • Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jan 14, 2019 · Synced Oct 22, 2026, 1:04 AM 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 Jun 1, 2018 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nicotine and Cannabis Vape Labeling Experiment - Spring 2025

NCT06919276
View directory record Official record
Conditions
Vaping, Adolescent, Electronic Cigarette Use, Nicotine, Cannabis
Interventions
Vaping Device Labeling
Other
Lead sponsor
University of Southern California
Other
Eligibility
11 Years to 19 Years
Enrollment
3,048 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cannabis Impairment Detection Application (CIDA)

NCT04230460
View directory record Official record
Conditions
Driving Under the Influence, Marijuana Intoxication, Alcohol Intoxication
Interventions
Cannabis (THC) (Inhaled) Placebo, Cannabis (High% THC) (Inhaled), Cannabis (Very High% THC) (Inhaled), Alcohol (oral)
Drug
Lead sponsor
Advanced Brain Monitoring, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
124 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 12, 2021 · Synced Oct 22, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Using Novel Behavioral Economic Measures to Characterize Dual Marijuana and Tobacco Use in Young Adults

NCT07398443
View directory record Official record
Conditions
Behavioral Economics, Cannabis Smoking, Tobacco Smoking
Interventions
Cue Reactivity
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years to 25 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Not listed Phase 2Phase 3 Interventional

Brief Counseling to Reduce Injuries Among Emergency Department Patients Who Report Alcohol and Substance Use

NCT00547963
View directory record Official record
Conditions
Alcohol Drinking, Marijuana Smoking
Interventions
brief counseling
Behavioral
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years and older
Enrollment
554 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 8, 2008 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 4 Interventional

Haloperidol for the Treatment of Nausea and Vomiting in the ED

NCT04764344
View directory record Official record
Conditions
Vomiting, Nausea, Abdominal Pain, Cannabis Use
Interventions
Haloperidol, Ondansetron
Drug
Lead sponsor
Western Michigan University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 1, 2023 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Laboratory Model of Increasing Delta-9-tetrahydrocannabinol (THC) Potency on Cigarette Smoking

NCT02961309
View directory record Official record
Conditions
Tobacco Use
Interventions
THC
Drug
Lead sponsor
Battelle Memorial Institute
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 2, 2019 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Results available

First Episode Schizophrenia and Cannabis-Related Disorder Study

NCT00573287
View directory record Official record
Conditions
Cannabis-Related Disorder, Substance-Related Disorders, Schizophrenia, Psychotic Disorders
Interventions
clozapine, risperidone
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
17 Years to 45 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
5
States / cities
Concord, New Hampshire • Lebanon, New Hampshire • Manchester, New Hampshire + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2019 · Synced Oct 22, 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 22, 2026, 1:04 AM EDT
Completed Phase 2 Interventional Results available

Gabapentin Treatment of Cannabis Dependence

NCT00974376
View directory record Official record
Conditions
Cannabis Dependence, Cannabis Withdrawal, Cognitive Deficits
Interventions
gabapentin 1200mg/day, Placebo, Manual-guided behavioral counseling
Drug · Behavioral
Lead sponsor
The Scripps Research Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 6, 2017 · Synced Oct 22, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Perceptual Influences From Smoking Cannabis: an Experimental Study

NCT06588582
View directory record Official record
Conditions
Cannabis Use, Stress
Interventions
Water Temperature Variation - WW, Water Temperature Variation - CW
Other
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
21 Years to 65 Years
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 13, 2025 · Synced Oct 22, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Modeling the Effects of Chronic Marijuana Use on Neuroinflammation and HIV-related Neuronal Injury

NCT04810858
View directory record Official record
Conditions
Cannabis, HIV, Inflammation, Cognition, Neuroimaging
Interventions
Multimodal, multi-parametric MRI, Immune and cytokine profiling, Neuropsychological testing
Other · Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
25 Years to 59 Years
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Dronabinol (Oral THC) on Cannabis Use

NCT01394185
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Dronabinol 120mg/day, Placebo, Dronabinol 240mg/day
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2017 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Brief Interventions With Text Messaging to Reduce Adolescent Alcohol and Marijuana Use

NCT03401333
View directory record Official record
Conditions
Alcohol Drinking, Marijuana
Interventions
Text Messaging and Brief Negotiation Interview
Behavioral
Lead sponsor
Yale University
Other
Eligibility
13 Years to 18 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 23, 2018 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Project RAP: Family-based HIV Prevention in the Juvenile Drug Court

NCT01403298
View directory record Official record
Conditions
HIV/AIDS
Interventions
Family-Based HIV prevention, Adolescent Only Health Promotion
Behavioral · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
13 Years to 18 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Oct 22, 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 22, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Distinguishing Alcohol Intoxication, Cannabis Intoxication and Co-intoxication Using Electroencephalography (EEG)

NCT06259916
View directory record Official record
Conditions
Cannabis Use, Alcohol Use, Unspecified
Interventions
Alcohol, Cannabis
Other
Lead sponsor
Colorado State University
Other
Eligibility
21 Years to 50 Years
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Substance Use Interventions for Truant Adolescents

NCT03655574
View directory record Official record
Conditions
Adolescent Problem Behavior, Truancy; Unsocialized, Marijuana Abuse, Truancy; Socialized, Substance Abuse, Alcohol Abuse
Interventions
Motivational + Family Check-up (MET+FCU), Psychoeducation
Behavioral · Other
Lead sponsor
Brown University
Other
Eligibility
12 Years to 18 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
2
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Oct 22, 2026, 1:04 AM EDT
Recruiting Not applicable Interventional

Medical Cannabis and Behavior

NCT06808048
View directory record Official record
Conditions
Chronic Pain Patients, Medical Cannabis Users
Interventions
Cognitive testing, Task-based fMRI measure of face-name and verbal learning
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
30 Years to 75 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Oct 22, 2026, 1:04 AM EDT
Completed Not applicable Interventional

Feasibility Trial of rTMS for Cannabis Use Disorder

NCT03538288
View directory record Official record
Conditions
Cannabis
Interventions
rTMS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 2, 2018 · Synced Oct 22, 2026, 1:04 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of Psychotherapeutic Advertising Claims on Cannabis Purchasing

NCT07216911
View directory record Official record
Conditions
Anxiety, Depression, Cannabis Use
Interventions
CC, PAC, WL
Behavioral
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
21 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Oct 22, 2026, 1:04 AM EDT