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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Marijuana Use Clear all
Not listed Not applicable Interventional

Computer-delivered Psychosocial Intervention for Adolescent Substance Use Disorders

NCT00957775
View directory record Official record
Conditions
Substance-Related Disorders, Alcohol-Related Disorders, Marijuana Abuse
Interventions
Usual care, Computer-delivered ACRA
Behavioral
Lead sponsor
National Development and Research Institutes, Inc.
Other
Eligibility
12 Years to 18 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 11, 2009 · Synced Sep 4, 2026, 1:58 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Imaging Cannabinoid Receptors Using Positron Emission Tomography (PET) Scanning

NCT01730781
View directory record Official record
Conditions
Schizophrenia, Cannabis Dependence, Prodromal for Psychotic Illness, Family History of Alcoholism, Healthy Control, Opioid-use Disorder, Post Traumatic Stress Disorder
Interventions
[11-C]OMAR
Radiation
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Recruiting Not applicable Interventional

Cannabis Reduction and Functional Outcomes

NCT07218471
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
CBT4CBT (Computerized Cognitive Behavioral Therapy), Motivational Interviewing, Contingency Management
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Effect of Cannabis on E-Cigarette Use Behavior

NCT06609109
View directory record Official record
Conditions
Cannabis Use, Tobacco Use, Electronic Cigarette Use
Interventions
THC High Dose, THC Low Dose, THC 0mg, E-Cigarette Full Nicotine, E-Cigarette Placebo Nicotine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

SV2A Density Cannabis Use Disorder

NCT05472818
View directory record Official record
Conditions
Cannabis Use Disorder, Healthy
Interventions
[11C]APP311
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 75 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2032
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use Cigarettes, E-cigarettes and Cannabis (Co-Tox Study)

NCT07167225
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma, E-Cig Use
Interventions
Effectiveness of different recruitment approaches, Choice of study completion locations, Cannabis Engagement Assessment, E-cigarette dependence Scale, Nicotine dependence Scale, Co use practices QUestionnaire
Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 25 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 4, 2026, 1:58 PM 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 1, 2018 · Synced Sep 4, 2026, 1:58 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 4, 2026, 1:58 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

The Role of Sleep in the Treatment of Cannabis Use Disorders

NCT01685073
View directory record Official record
Conditions
Drug Addiction
Interventions
Zolpidem extended-release, MET/CBT
Drug · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
127 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional Results available

Brief Intervention Combined With Health Coaching Via Social Media for Cannabis Use

NCT04316741
View directory record Official record
Conditions
Cannabis Use
Interventions
Snapcoach
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 25 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Flint, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 29, 2022 · Synced Sep 4, 2026, 1:58 PM EDT
Active, not recruiting Phase 2 Interventional

Cannabis Effects on Antiretroviral Therapy Pharmacokinetics and Neurotoxicity

NCT04800159
View directory record Official record
Conditions
HIV, Cannabis Use
Interventions
THC Cannabis, CBD Cannabis, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigating Real-world Stress-related Mechanisms in Heavy Cannabis Users

NCT05833230
View directory record Official record
Conditions
Cannabis Use, Cannabis, Cannabis Abuse
Interventions
Intensive Day Monitoring
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 3, 2025 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Development of a Videogame Prototype Targeting Cigarette and Marijuana Smoking, and Tobacco Product Prevention Among Young Adolescents

NCT03107936
View directory record Official record
Conditions
Smoking
Interventions
smokeSCREEN game
Behavioral
Lead sponsor
Yale University
Other
Eligibility
10 Years to 16 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
4
States / cities
Hamden, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 18, 2018 · Synced Sep 4, 2026, 1:58 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 1, 2017 · Synced Sep 4, 2026, 1:58 PM EDT
Active, not recruiting Not applicable Interventional

Breathwork-assisted Treatment for Cannabis Use Disorder

NCT05219825
View directory record Official record
Conditions
Addiction, Substance Abuse, Cannabis Use Disorder, Cannabis Use, Cannabis Dependence, Cannabis Abuse
Interventions
Breathwork workshop
Behavioral
Lead sponsor
Elias Dakwar
Other
Eligibility
18 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional

Pilot Testing the Check Up

NCT04624074
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Teen Marijuana Check Up
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
13 Years to 35 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Sep 4, 2026, 1:58 PM 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 10, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional

Social Media Intervention - Physical Activity

NCT04901910
View directory record Official record
Conditions
Cannabis Use
Interventions
Physical Activity (PA) Social Media Group, Verdi plus PA Social Media Group
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 25 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 27, 2022 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional

Peer Approaches to Substances in Early Psychosis Programs: A Pilot Study of a Peer-Led Intervention

NCT04517279
View directory record Official record
Conditions
Psychotic Disorders, Substance Use
Interventions
Peer Approach to Substances in Early Psychosis Programs, Usual Care Peer Services
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
15 Years to 32 Years
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
15
States / cities
Austin, Texas • Beaumont, Texas • Big Spring, Texas + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Perceptions of Proposed Warnings for Cannabis Edibles Packaging

NCT07496489
View directory record Official record
Conditions
Cannabis Use
Interventions
No Warning Control, Delayed Effects Text Only, Delayed Effects Plus Icon, Delayed Effects Plus Dose, Delayed Effects Plus Dose Plus Adverse Effects
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
1,250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Completed No phase listed Observational

Questionnaires in Assessing Attitudes About Legalization of Marijuana Use in Participants With Cancer

NCT03360799
View directory record Official record
Conditions
Malignant Neoplasm
Interventions
Questionnaire Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Gilbert, Arizona • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 29, 2019 · Synced Sep 4, 2026, 1:58 PM EDT
Recruiting No phase listed Observational

Assessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology Clinics

NCT06418204
View directory record Official record
Conditions
Breast Carcinoma, Colorectal Carcinoma, Lung Non-Small Cell Carcinoma, Melanoma, Non-Hodgkin Lymphoma
Interventions
Non-interventional Study
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
464
States / cities
Fairbanks, Alaska • Kingman, Arizona • Phoenix, Arizona + 360 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Not applicable Interventional

Mobile Intervention for Simultaneous Alcohol and Marijuana Use in Young Adults

NCT05991882
View directory record Official record
Conditions
Alcohol Drinking, Cannabis Use
Interventions
Condition 1: Craving daily+PBS daily, Condition 2: Craving daily+PBS trigger, Condition 3: Craving trigger+PBS daily, Condition 4: Craving trigger+PBS trigger, Condition 5: PBS daily+ PBS trigger, Condition 6: Craving daily+Craving trigger, Condition 7: Craving daily+Craving trigger+PBS daily+PBS trigger, Condition 8: No daily or trigger craving or PBS
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years to 30 Years
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 4, 2026, 1:58 PM EDT
Completed Phase 1 Interventional Results available

Opioid and Cannabinoid Interactions

NCT03705559
View directory record Official record
Conditions
Marijuana Usage, Opioid Use
Interventions
Vaporized Marijuana, Opioid Agonist, Placebo
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 4, 2026, 1:58 PM EDT