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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:14 AM EDT

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Showing 217–240 of 357 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Abuse Cannabis Clear all
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 21, 2026, 10:14 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 21, 2026, 10:14 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 21, 2026, 10:14 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Gender Related Differences in the Acute Effects of Delta-9-Tetrahydrocannabinol in Healthy Humans: Sub-Study II

NCT04704271
View directory record Official record
Conditions
Cannabis
Interventions
Inhaled THC, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 21, 2026, 10:14 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 21, 2026, 10:14 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 21, 2026, 10:14 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 21, 2026, 10:14 AM EDT
Completed No phase listed Observational Results available

Anxiety, Inflammation, Stress, and Cannabinoids

NCT03491384
View directory record Official record
Conditions
Anxiety, Anxiety Disorders, Anxiety Generalized, Anxiety Chronic, Inflammation, Inflammatory Response
Interventions
Cannabis (smoked flower, ingested edible)
Drug
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
21 Years to 70 Years
Enrollment
361 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 21, 2026, 10:14 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 21, 2026, 10:14 AM EDT
Suspended Phase 2 Interventional

Dose-Ranging Trial of Inhaled Cannabis for Acute Migraine Treatment

NCT05427630
View directory record Official record
Conditions
Migraine, Cannabis, THC
Interventions
THC ~2.5%, THC ~5%, THC ~10%, Sham Cannabis
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Oct 21, 2026, 10:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Test of Parent-Focused Cannabis-Related Actions and Practices Intervention for Adolescent Marijuana Abuse

NCT04923230
View directory record Official record
Conditions
Cannabis Use Disorder, Mild, Cannabis Use Disorder, Moderate
Interventions
Cannabis Actions and Practices Resource for Parents
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
13 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 26, 2023 · Synced Oct 21, 2026, 10:14 AM 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 11, 2021 · Synced Oct 21, 2026, 10:14 AM 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 21, 2026, 10:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Feasibility and Acceptability of the Cannabis Awareness and Prevention Toolkit

NCT05521321
View directory record Official record
Conditions
Cannabis Use
Interventions
Stanford Smart Talk Cannabis Awareness and Prevention curriculum
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
10 Years to 20 Years
Enrollment
658 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 21, 2026, 10:14 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Study of Long-Acting Injectable Naltrexone to Treat Cannabis Dependence

NCT02088177
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Long-acting injectable naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Oct 21, 2026, 10:14 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Cannabis Observations on Brain Waves, Retrieval, and Attention: Experiment 4

NCT07679581
View directory record Official record
Conditions
Cannabis, Memory, Electroencephalography
Interventions
Cannabis (smoked flower)
Drug
Lead sponsor
L. Cinnamon Bidwell
Other
Eligibility
21 Years to 40 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 21, 2026, 10:14 AM EDT
Active, not recruiting Phase 2 Interventional

Clinical Trial on Agitation in Alzheimer's Dementia

NCT05543681
View directory record Official record
Conditions
Alzheimer Disease, Agitation,Psychomotor, Care Giving Burden, NPS, Aggression
Interventions
IGC-AD1-Active, IGC-AD1-Placebo
Drug
Lead sponsor
IGC Pharma, LLC
Industry
Eligibility
60 Years and older
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
21
States / cities
Maitland, Florida • Melbourne, Florida • Miami, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 21, 2026, 10:14 AM 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 21, 2026, 10:14 AM EDT
Completed Phase 1Phase 2 Interventional

Medicinal Cannabis for Painful HIV Neuropathy

NCT00255580
View directory record Official record
Conditions
Neuropathic Pain
Interventions
Smoked cannabis
Drug
Lead sponsor
Center for Medicinal Cannabis Research
Other
Eligibility
21 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2008 · Synced Oct 21, 2026, 10:14 AM EDT
Completed Phase 2 Interventional

Effectiveness of Bupropion in Treating Marijuana Dependent Individuals

NCT00142870
View directory record Official record
Conditions
Marijuana Abuse, Substance-Related Disorders
Interventions
Bupropion
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 21, 2026, 10:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Helping Eliminate Marijuana Use Through Pediatric Practice

NCT02744118
View directory record Official record
Conditions
Marijuana
Interventions
5A's Model, Healthy Internet Use Model
Other
Lead sponsor
American Academy of Pediatrics
Other
Eligibility
13 Years to 25 Years
Enrollment
620 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Elk Grove Village, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 9, 2020 · Synced Oct 21, 2026, 10:14 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Ethanol and Cannabinoid Effects on Simulated Driving and Related Cognition: Sub-Study II

NCT02710097
View directory record Official record
Conditions
Cannabis, Alcohol Effect, Driving Under the Influence of Alcohol and Other Drugs
Interventions
Active inhaled cannabis, Placebo, Active Oral Ethanol
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 21, 2026, 10:14 AM EDT
Completed No phase listed Observational

Anxiety Symptoms in Relation to Use of Hemp-derived, Full Spectrum Cannabidiol (CBD)

NCT05023759
View directory record Official record
Conditions
Generalized Anxiety Disorder
Interventions
Formula30A Full Spectrum Hemp Cannabidiol 25mg Capsules
Dietary Supplement
Lead sponsor
Formula30A LLC
Industry
Eligibility
21 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
5
States / cities
Denton, Texas • Edinburg, Texas • Forney, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2021 · Synced Oct 21, 2026, 10:14 AM EDT
Withdrawn Phase 1 Interventional

Trial of Computerized SBI to Reduce Teen Alcohol Use

NCT01784627
View directory record Official record
Conditions
Alcohol Abuse, Cannabis Abuse, Nicotine Dependence
Interventions
c-ASBI
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
9 Years to 20 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
6
States / cities
Boston, Massachusetts • Cambridge, Massachusetts • Lexington, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Oct 21, 2026, 10:14 AM EDT