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ClinicalTrials.gov public records Last synced Oct 21, 2026, 12:31 AM EDT

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Showing 25–48 of 610 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Marijuana Clear all
Completed Phase 1 Interventional Results available

Facilitating the Behavioral Treatment of Cannabis Use Disorder

NCT02946489
View directory record Official record
Conditions
Cannabis Dependence
Interventions
CI-581a
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 11, 2020 · Synced Oct 21, 2026, 12:31 AM 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 21, 2026 · Synced Oct 21, 2026, 12:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Responses to Marijuana-Related Cues Versus Neutral Cues in Adults Taking Tetrahydrocannabinol (THC) - 2

NCT00218504
View directory record Official record
Conditions
Marijuana Abuse
Interventions
Tetrahydrocannabinol
Drug
Lead sponsor
Wayne State University
Other
Eligibility
21 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 5, 2012 · Synced Oct 21, 2026, 12:31 AM EDT
Completed Phase 3 Interventional

Divalproex Sodium (Depakote) for Explosive Tempers in Adolescents and Adults

NCT00218114
View directory record Official record
Conditions
Attention Deficit and Disruptive Behavior Disorders, Marijuana Abuse
Interventions
Divalproex Sodium, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
12 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2005
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 10, 2017 · Synced Oct 21, 2026, 12:31 AM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Droperidol on Prevention of Cannabis Hyperemesis Syndrome

NCT05244460
View directory record Official record
Conditions
Cannabis Hyperemesis Syndrome
Interventions
Droperidol Injectable Product, Diphenhydramine
Drug
Lead sponsor
Mercy Health Ohio
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Austintown, Ohio • Boardman, Ohio • Warren, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 20, 2023 · Synced Oct 21, 2026, 12:31 AM EDT
Completed Early Phase 1 Interventional Results available

Dronabinol Interactions With Cognitive Enhancing Drug in Humans

NCT00842985
View directory record Official record
Conditions
Cannabis, Marijuana Abuse
Interventions
drug condition
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 21, 2026, 12:31 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 21, 2026, 12:31 AM EDT
Completed Not applicable Interventional Results available

Pain Inflammation and Cannabis in HIV

NCT05554146
View directory record Official record
Conditions
HIV Infections, Neuropathic Pain, Cannabis
Interventions
Receipt of Coupon for Placebo Soft-Gel Capsule, Receipt of Coupon for High THC Soft-Gel Capsule, Receipt of Coupon for Equal THC and CBD Soft-Gel Capsule, Receipt of Coupon for High CBD Soft-Gel Capsule
Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 100 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Oct 21, 2026, 12:31 AM EDT
Completed Phase 2 Interventional

Atomoxetine for Treating Marijuana-Abusing Adolescents Who Have Attention Deficit Hyperactivity Disorder

NCT00142961
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity, Marijuana Abuse
Interventions
Atomoxetine, placebo
Drug · Other
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
14 Years to 21 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Oct 21, 2026, 12:31 AM EDT
Completed Phase 2 Interventional Results available

Effectiveness Study of Dronabinol and BRENDA for the Treatment of Cannabis Withdrawal

NCT00480441
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Dronabinol, BRENDA therapy, Placebo
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 55 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 29, 2019 · Synced Oct 21, 2026, 12:31 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Delta-9-THC and Iomazenil in Healthy Humans

NCT00982982
View directory record Official record
Conditions
Schizophrenia, Mental Disorders, Psychotic Disorders
Interventions
THC and Iomazenil, Placebo (control)
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 5, 2022 · Synced Oct 21, 2026, 12:31 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, 12:31 AM EDT
Completed Not applicable Interventional Results available

Mobile Contingency Management for Marijuana and Tobacco Cessation

NCT02869451
View directory record Official record
Conditions
Cigarette Smoking, Marijuana Abuse
Interventions
bupropion, transdermal nicotine patch, Nicotine polacrilex, nicotine lozenge, counseling for marijuana and smoking cessation, mobile contingency management
Drug · Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 70 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 7, 2020 · Synced Oct 21, 2026, 12:31 AM EDT
Not listed Not applicable Interventional

Examining Effects of Domain Specific Episodic Future Thinking on Cannabis Use

NCT05324813
View directory record Official record
Conditions
Marijuana Use, Marijuana Dependence, Tobacco Use, Alcohol Use, Unspecified
Interventions
Domain-Specific Episodic Future Thinking
Behavioral
Lead sponsor
Michael Sofis
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Sudbury, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 12, 2022 · Synced Oct 21, 2026, 12:31 AM 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 19, 2025 · Synced Oct 21, 2026, 12:31 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Cannabis Consumption and Driving Impairment Assessment on a Closed Course

NCT06059677
View directory record Official record
Conditions
Cannabis Smoking, Driving Impaired
Interventions
Active smoked cannabis, Placebo smoked cannabis
Drug
Lead sponsor
Bayliss J. Camp, PhD
Government
Eligibility
21 Years to 55 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2023 · Synced Oct 21, 2026, 12:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cannabis and Aging

NCT05084105
View directory record Official record
Conditions
Cannabis Use
Interventions
Not listed
Lead sponsor
Thorsten Rudroff
Other
Eligibility
50 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 24, 2022 · Synced Oct 21, 2026, 12:31 AM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

The Effect of Pollen Season on Subcutaneous Allergen Immunotherapy Reactions

NCT01878929
View directory record Official record
Conditions
Allergic Rhinitis, Asthma, Allergic Conjunctivitis
Interventions
Allergen(Tree, Grass, Weeds)
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
5 Years and older
Enrollment
245 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
South Euclid, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 17, 2013 · Synced Oct 21, 2026, 12:31 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Smart Talk: Cannabis Awareness and Prevention Curriculum Evaluation

NCT07357454
View directory record Official record
Conditions
Cannabis Use
Interventions
Behavioral: Smart Talk Cannabis Awareness and Prevention
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
10 Years to 20 Years
Enrollment
10,800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Oct 21, 2026, 12:31 AM EDT
Not listed Phase 2 Interventional

Project RAP: Reaching Adolescents for Prevention

NCT00183157
View directory record Official record
Conditions
Alcohol Related Morbidity, Alcohol Dependence
Interventions
Brief Motivational Intervention, Assessment and list of resources, Referral to Community Resources
Behavioral
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
14 Years to 21 Years
Enrollment
1,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 13, 2009 · Synced Oct 21, 2026, 12:31 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Impact of Oral Cannabis Administration and Co-Administration of Alcohol on Impairment

NCT04931095
View directory record Official record
Conditions
Cannabis Intoxication, Alcohol Intoxication
Interventions
Cannabis, Alcohol
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 55 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 21, 2026, 12:31 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

CB1R in Synthetic Psychoactive Cannabinoids

NCT03539575
View directory record Official record
Conditions
Drug Dependence
Interventions
[11-C]OMAR
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 21, 2026, 12:31 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Differences in Cannabis Impairment and Its Measurement Due to Route of Administration

NCT03122691
View directory record Official record
Conditions
Behavioral Pharmacology of Cannabis
Interventions
cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 21, 2026, 12:31 AM EDT
Not yet recruiting Phase 1 Interventional

Cannabis and Opioid Use Disorder, Study 2

NCT07661446
View directory record Official record
Conditions
Opioid Use Disorders, Cannabis Use
Interventions
Inhaled Cannabis, Intranasal Opioid
Drug
Lead sponsor
University of Kentucky
Other
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 21, 2026, 12:31 AM EDT