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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:23 PM EDT

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Showing 73–96 of 337 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Marijuana Use Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Brain Imaging of Cannabinoid Receptors

NCT03204305
View directory record Official record
Conditions
Cannabis Use Disorder, Cannabis Dependence, Continuous
Interventions
11C-OMAR, Cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 21, 2023 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Adolescent Safer Sex Social Network Intervention

NCT00107562
View directory record Official record
Conditions
Sexual Behavior, Alcohol Drinking, Marijuana Smoking
Interventions
Adolescent Safer Sex Social Network Intervention
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
16 Years to 19 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
2
States / cities
Tampa, Florida • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 28, 2017 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional

Affective Management Training for Cannabis Misuse

NCT03432013
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
CUD-AMT, SUD-CBT
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 25 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Families With Substance Use and Psychosis: A Pilot Study

NCT04284813
View directory record Official record
Conditions
Psychosis, Substance Use, Substance Use Disorders, Family, Tobacco Use, Nicotine Use Disorder, Cigarette Smoking, Cannabis, Marijuana, Alcohol Use Disorder, Alcohol, Schizophrenia, Schizoaffective Disorder, Bipolar Disorder, Mental Disorder
Interventions
CRAFT-FT
Behavioral
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 12, 2022 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Developing and Strengthening Cannabis Warnings: Warning Message Testing

NCT07699198
View directory record Official record
Conditions
Cannabis, Marijuana Use
Interventions
Constituents, Cognitive Functioning, Cardiovascular Health, Motor Vehicle Crashes, Dependence, Psychosis and Schizophrenia, Mental Health, Reproductive Health, Respiratory Health, Edibles, Cannabis Hyperemesis Syndrome, Control
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
1,750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Phase 2 Interventional Results available

A Trial of N-Acetylcysteine (an Over-the-Counter Medicine) in Adolescents Who Smoke Marijuana

NCT01005810
View directory record Official record
Conditions
Cannabis Dependence
Interventions
N-Acetylcysteine, placebo, Contingency Management
Drug · Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
13 Years to 21 Years
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 21, 2018 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional Results available

Behavioral Treatment of Adolescent Substance Use

NCT02063984
View directory record Official record
Conditions
Substance Use Disorders
Interventions
Intensive Outpatient Treatment (IOP) + Contingency Management (CM), Working Memory Training
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
12 Years to 26 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 4, 2021 · Synced Oct 21, 2026, 5:23 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Outcomes Mandate National Integration With Cannabis as Medicine

NCT03944447
View directory record Official record
Conditions
Chronic Pain, Chronic Pain Syndrome, Chronic Pain Due to Injury, Chronic Pain Due to Trauma, Fibromyalgia, Seizures, Hepatitis C, Cancer, Crohn Disease, HIV/AIDS, Multiple Sclerosis, Traumatic Brain Injury, Sickle Cell Disease, Post Traumatic Stress Disorder, Tourette Syndrome, Ulcerative Colitis, Glaucoma, Epilepsy, Inflammatory Bowel Diseases, Parkinson Disease, Amyotrophic Lateral Sclerosis, Chronic Traumatic Encephalopathy, Anxiety, Depression, Insomnia, Autism, Opioid-use Disorder, Bipolar Disorder, Covid19, SARS-CoV Infection, COVID-19, Corona Virus Infection, Coronavirus
Interventions
Cannabis, Medical, RYAH-Medtech Inhaler
Drug · Device
Lead sponsor
OMNI Medical Services, LLC
Network
Eligibility
7 Years and older
Enrollment
200,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
17
States / cities
Boca Raton, Florida • Bradenton, Florida • Fort Lauderdale, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2022 · Synced Oct 21, 2026, 5:23 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Interactions of Cannabidiol (CBD) With Morphine

NCT05143424
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Morphine Sulfate
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 27, 2024 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Effects of Cannabidiol (CBD) Compared to Delta-9-Tetrahydrocannabinol (THC) and Alprazolam

NCT03398083
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
THC, Alprazolam, Placebo oral capsule, CBD
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cannabis Edibles Packaging Descriptors Experiment

NCT06171399
View directory record Official record
Conditions
Cannabis Use
Interventions
"All Natural" descriptor, "Gluten-free" descriptor, "Vegan" descriptor, "100% Organic" descriptor, "Handcrafted" descriptor, "Made with live resin" descriptor, "Fast-acting" descriptor, "Relax" descriptor, "Energy Boost" descriptor, No descriptor (control)
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
2,521 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 9, 2025 · Synced Oct 21, 2026, 5:23 PM EDT
Recruiting Not applicable Interventional

Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment

NCT07701304
View directory record Official record
Conditions
Cannabis Use, Risk Perception, Decision Making
Interventions
Discrete choice experiment (DCE) survey-experiment
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
21 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Effects of Various Cannabis Strains on Perceptual, Subjective and Objective Use Outcomes

NCT07214155
View directory record Official record
Conditions
Cannabis Intoxication
Interventions
Cannabis, 0 mg THC (placebo)
Drug · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 55 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

The Impact of Product Formulation on the Pharmacokinetics and Pharmacodynamics of Cannabis Edibles

NCT05602649
View directory record Official record
Conditions
Cannabis Use
Interventions
Cannabis, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 55 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cannabis Edibles Packaging Imagery Experiment

NCT06358144
View directory record Official record
Conditions
Cannabis Use
Interventions
Packaging imagery, No Imagery (Control)
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
1,260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 8, 2025 · Synced Oct 21, 2026, 5:23 PM EDT
Not yet recruiting Not applicable Interventional

Transcranial Magnetic Stimulation for Adolescents and Young Adults With Cannabis Use Disorder

NCT07634835
View directory record Official record
Conditions
Cannabis Use, Cannabis Use Disorder
Interventions
Magstim SuperRapid2, Sham rTMS
Device
Lead sponsor
University of Minnesota
Other
Eligibility
15 Years to 21 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Recruiting Not applicable Interventional

Cannabis, Linked Emotions, and Adolescent Risk Study

NCT06576076
View directory record Official record
Conditions
Cannabis Use, Depression, Suicidal Ideation, Adolescent Behavior
Interventions
Contingency management for cannabis abstinence
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years to 18 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional Results available

Reducing Cannabis Use for Sleep Among Adults Using Medical Cannabis

NCT03964974
View directory record Official record
Conditions
Insomnia Chronic, Cannabis Use
Interventions
Cognitive Behavioral Therapy for Insomnia in Cannabis Users (CBTi-CB), Sleep Hygiene Education (SHE)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 14, 2022 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional

Impact of Cannabis Use and Abstinence on Emotion

NCT07746440
View directory record Official record
Conditions
Cannabis Use Disorder, Severe
Interventions
Contingency management for cannabis abstinence and lab visit attendance, Contingency management for lab visit attendance
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Completed Not applicable Interventional

TECH App Marijuana Use Intervention for Court-Involved Adolescents

NCT05979272
View directory record Official record
Conditions
Cannabis Use, Adolescent
Interventions
Treatment as usual, Teen Empowerment through Computerized Health (TECH) app
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
14 Years to 18 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
4
States / cities
Chicago, Illinois • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Oct 21, 2026, 5:23 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 15, 2025 · Synced Oct 21, 2026, 5:23 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
483
States / cities
Fairbanks, Alaska • Kingman, Arizona • Phoenix, Arizona + 376 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 21, 2026, 5:23 PM EDT
Completed No phase listed Observational

Does Medical Cannabis Reduce Opioid Use in Adults With Pain

NCT04308148
View directory record Official record
Conditions
Opioid Use, Marijuana, Chronic Pain
Interventions
Not listed
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years to 99 Years
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 25, 2024 · Synced Oct 21, 2026, 5:23 PM EDT
Completed No phase listed Observational

Can Medical Cannabis Affect Opioid Use?

NCT06206252
View directory record Official record
Conditions
Chronic Pain, Pain
Interventions
Medical Cannabis
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Oct 21, 2026, 5:23 PM EDT