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ClinicalTrials.gov public records Last synced Oct 23, 2026, 6:12 AM EDT

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Showing 409–432 of 611 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Marijuana Clear all
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Examining the Role of Tolerance on Dose-dependent Effects of Acute THC on Oculomotor and Cognitive Performance

NCT06351540
View directory record Official record
Conditions
Cannabis Use, Impaired Driving, Cognitive Impairment
Interventions
Cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Not listed No phase listed Observational

Evaluating the Effects of Cannabis Use and Circulating Cannabinoids on Tumor Infiltrating Lymphocytes in Malignant Melanoma

NCT05520294
View directory record Official record
Conditions
Melanoma
Interventions
High-performance liquid chromatography-tandem mass spectrometry assays
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years to 100 Years
Enrollment
90 participants
Timeline
2022 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Results available

Achieving Cannabis Cessation-Evaluating N-Acetylcysteine Treatment

NCT01675661
View directory record Official record
Conditions
Cannabis Dependence
Interventions
N-Acetylcysteine, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 50 Years
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
6
States / cities
Los Angeles, California • New Haven, Connecticut • Lexington, Kentucky + 3 more
Source: ClinicalTrials.gov public record
Updated May 24, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Recruiting No phase listed Observational

Observational Study of THC Concentrations in Acute Cannabis-induced CNS Depression

NCT06017622
View directory record Official record
Conditions
Acute Cannabis-induced CNS Depression
Interventions
Not listed
Lead sponsor
Anebulo Pharmaceuticals
Industry
Eligibility
Not listed
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Worcester, Massachusetts • Cincinnati, Ohio • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Primary Care iSBIRT to Reduce Serious Teen Health Risks

NCT00891631
View directory record Official record
Conditions
Substance-related Disorders, Depression, High-risk Sex
Interventions
iSBIRT, iSBIRT/TE
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
12 Years to 21 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional

The Impact of Excise Tax Structures for Retail Marijuana on Marijuana Consumption

NCT06848543
View directory record Official record
Conditions
Hypothetical Cannabis Purchase
Interventions
Arm 1 Intervention, Arm 2 Intervention, Arm 3 intervention
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
15 Years and older
Enrollment
4,696 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Recruiting Phase 3 Interventional

Safety and Efficacy of Oral Cannabis in Chronic Spine Pain

NCT05052541
View directory record Official record
Conditions
Back Pain, Neck Pain
Interventions
THC/CBD, THC, Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years to 84 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 23, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Completed No phase listed Observational

Quiting Marijuana Use: Self-report Study of Quitting Straegies and Withdrawal Symptoms

NCT01603992
View directory record Official record
Conditions
Cannabis Abuse, Cannabis Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years and older
Enrollment
822 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
3
States / cities
Baltimore, Maryland • Catonsville, Maryland • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Cannabis Gummy for the Improvement of Sleep and Quality of Life in Patients With Cancer, Pillow Trial

NCT07658677
View directory record Official record
Conditions
Hematopoietic and Lymphatic System Neoplasm, Malignant Solid Neoplasm
Interventions
Actigraphy, Best Practice, Biospecimen Collection, Ecological Momentary Assessment, Questionnaire Administration, Single Agent Therapy
Other · Procedure · Drug
Lead sponsor
Theodore Brasky PhD
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 14, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Behavioral Economic Analysis of Demand for Marijuana

NCT03518567
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Smoked marijuana cigarettes: High THC dose (6% THC)
Drug
Lead sponsor
Brown University
Other
Eligibility
18 Years to 50 Years
Enrollment
133 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Oct 23, 2026, 6:12 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

CBDV vs Placebo in Children and Adults up to Age 30 With Prader-Willi Syndrome (PWS)

NCT03848481
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
CBDV Compound, Placebo
Drug
Lead sponsor
Eric Hollander
Other
Eligibility
5 Years to 30 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Colorado Marijuana Users Health Cohort

NCT02735954
View directory record Official record
Conditions
COPD, Insomnia, Cannabis
Interventions
Marijuana
Other
Lead sponsor
National Jewish Health
Other
Eligibility
21 Years to 80 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 13, 2019 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic and Pharmacodynamic Effects of Smoked and Vaporized Cannabis

NCT03676166
View directory record Official record
Conditions
Cannabis
Interventions
Cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 13, 2019 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Cannabidiol Pharmacotherapy for Adults With Cannabis Use Disorder

NCT03102918
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Cannabidiol, Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 25, 2019 · Synced Oct 23, 2026, 6:12 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 23, 2026, 6:12 AM EDT
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 23, 2026, 6:12 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Trial of Cannabis for Essential Tremor

NCT03805750
View directory record Official record
Conditions
Essential Tremor
Interventions
CBD/THC, Placebo oral capsule
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Oct 13, 2022 · Synced Oct 23, 2026, 6:12 AM 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 28, 2022 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Effects of Vaporized Marijuana on Neuropathic Pain

NCT01037088
View directory record Official record
Conditions
Neuropathic Pain, Reflex Sympathetic Dystrophy, Peripheral Neuropathy, Post-herpetic Neuralgia, Spinal Cord Injury, Multiple Sclerosis
Interventions
Mild dose cannabis, Low dose cannabis, Cannabis
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jan 31, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Withdrawn Phase 2 Interventional

Combination of an Investigational Cannabinoid and Methadone for HIV-associated Neuropathy

NCT00723918
View directory record Official record
Conditions
HIV-associated Neuropathy, Polyneuropathy
Interventions
SAB378, methadone, SAB placebo, Methadone placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
San Diego, California • Brooklyn, New York • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 9, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

REAL Parenting Alcohol and Substance Use App

NCT03932097
View directory record Official record
Conditions
Underage Drinking, Alcohol Use, Underage
Interventions
REAL Parenting, Active Control Materials
Behavioral · Other
Lead sponsor
Real Prevention, LLC
Industry
Eligibility
15 Years to 18 Years
Enrollment
306 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Clifton, New Jersey
Source: ClinicalTrials.gov public record
Updated May 25, 2023 · Synced Oct 23, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Uterine Cooling During Cesarean Delivery to Reduce Blood Loss and Incidence of Postpartum Hemorrhage

NCT02229513
View directory record Official record
Conditions
Postpartum Hemorrhage, Uterine Atony
Interventions
Uterine Cooling
Procedure
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 19, 2018 · Synced Oct 23, 2026, 6:12 AM EDT
Recruiting Not applicable Interventional

The Neural Underpinnings of Depression and Cannabis Use in Young People Living With HIV

NCT05453513
View directory record Official record
Conditions
Depression, Cannabis Use Disorder, HIV
Interventions
MRI Study
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 59 Years
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 23, 2026, 6:12 AM EDT
Completed No phase listed Observational

Duration of Marijuana Concentration in Breast Milk- A Pilot Study

NCT02635568
View directory record Official record
Conditions
Cannabis, Pregnancy, Breast Feeding
Interventions
Cannabis Use
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 2, 2019 · Synced Oct 23, 2026, 6:12 AM EDT