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Showing 1–15 of 15 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Oral Delta-9-THC Cannabis Clear all
Withdrawn Not applicable Interventional Accepts healthy volunteers

Endourage Complete Spectrum Oral Mucosal Drops (OMD) in Adults Desiring a Reduction in Ethanol Use

NCT04659278
View directory record Official record
Conditions
Alcohol Drinking, Alcohol Use, Unspecified, Alcohol Abstinence, Alcohol-Related Disorders
Interventions
Endourage 1200 mg OMD ™ Oral Mucosal Drops, Isolate, Placebo, Peppermint Oil, masking flavor
Dietary Supplement · Other
Lead sponsor
Endourage, LLC
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Novato, California
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Sep 28, 2026, 5:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Delta-8-THC vs. Delta-9-THC on Simulated Driving Performance

NCT06218550
View directory record Official record
Conditions
Cannabis
Interventions
Delta-9-THC, Delta-8-THC, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 28, 2026, 5:08 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

N-acetylcysteine Effects on Tetrahydrocannabinol

NCT02335060
View directory record Official record
Conditions
Healthy
Interventions
Delta-9-THC, N-acetylcysteine, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 30, 2022 · Synced Sep 28, 2026, 5:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Laboratory Model of Increasing Delta-9-tetrahydrocannabinol (THC) Potency on Cigarette Smoking

NCT02961309
View directory record Official record
Conditions
Tobacco Use
Interventions
THC
Drug
Lead sponsor
Battelle Memorial Institute
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Sep 28, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

Trial of Dronabinol and Vaporized Cannabis in Chronic Low Back Pain

NCT02460692
View directory record Official record
Conditions
Cannabis, Low Back Pain, Neuropathic Pain
Interventions
Placebos, dronabinol, Vaporized Cannabis 3.7% THC/5.6% CBD
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
19 Years to 70 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 28, 2026, 5:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of the Single Dose Pharmacokinetics and Tolerability of Sativex in Patients With Impaired Hepatic Function and Healthy Patients

NCT01887301
View directory record Official record
Conditions
Hepatic Impairment
Interventions
Sativex
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Anaheim, California • Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 19, 2022 · Synced Sep 28, 2026, 5:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Testing the Interactive Effects of Delta-9-Tetrahydrocannabinol and Pregnenolone: Sub-Study I

NCT02811939
View directory record Official record
Conditions
Healthy
Interventions
Active Dronabinol, Active Pregnenolone, Placebo Dronabinol, Placebo Pregnenolone
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Sep 28, 2026, 5:08 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Clinical Study to Evaluate the Effects of Oral Delta-9-tetrahydrocannabinol (Δ9-THC) With and Without Alcohol on Perception and Driving Performance in Healthy Adults

NCT07176208
View directory record Official record
Conditions
Cannabis, Drug Effects, Driving Performance
Interventions
5 mg Dronabinol (Marinol®) + Placebo Beverage, 10 mg Dronabinol (Marinol®) + Placebo Beverage, 5 mg Dronabinol (Marinol®) + Alcohol Beverage, 10 mg Dronabinol (Marinol®) + Alcohol Beverage, Placebo Capsule + Alcohol Beverage, Placebo Capsule + Placebo Beverage
Drug
Lead sponsor
Food and Drug Administration (FDA)
Federal
Eligibility
21 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 28, 2026, 5:08 AM EDT
Completed No phase listed Observational

Marijuana Drug Discrimination and Self-Administration

NCT00943930
View directory record Official record
Conditions
Marijuana Abuse
Interventions
THC (delta-9 tetrahydrocannabinol), d-amphetamine, oral THC
Drug
Lead sponsor
Wayne State University
Other
Eligibility
21 Years to 45 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 27, 2016 · Synced Sep 28, 2026, 5:08 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

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

NCT02709954
View directory record Official record
Conditions
Cannabis, Alcohol Effect, Driving Under the Influence of Alcohol and Other Drugs
Interventions
Active inhaled delta-9-THC, 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 28, 2026 · Synced Sep 28, 2026, 5:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Pharmacokinetics and Pharmacodynamics of Oral and Vaporized Cannabidiol

NCT03164512
View directory record Official record
Conditions
Cannabidiol Pharmacokinetics
Interventions
Oral or vaporized cannabidiol, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 26, 2020 · Synced Sep 28, 2026, 5:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparative Pharmacokinetic and Pharmacodynamic Effects of Delta-8 and Delta-9 THC

NCT05287256
View directory record Official record
Conditions
Behavioral Pharmacology of Cannabis
Interventions
Oral Delta-8-THC Cannabis, Oral Delta-9-THC Cannabis, Oral Placebo, Vaporized Delta-8-THC Cannabis, Vaporized Delta-9-THC Cannabis, Vaporized Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 28, 2026, 5:08 AM EDT
Terminated Phase 1 Interventional

Tolerability of Cannabis in Patients Receiving Concurrent Chemoradiation for Glioblastoma

NCT03246113
View directory record Official record
Conditions
Glioblastoma
Interventions
Cannabis, Temozolomide, Radiation Therapy
Drug · Radiation
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 12, 2019 · Synced Sep 28, 2026, 5:08 AM EDT
Recruiting No phase listed Observational

Study of an Oral Fluid Testing Approach

NCT06891235
View directory record Official record
Conditions
Cannabis Use, Cannabis Intoxication, Cannabis Use Disorder
Interventions
Biologic testing for THC
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 28, 2026, 5:08 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Age-dependent Effects of Smoked and Oral Delta-9-THC

NCT05865470
View directory record Official record
Conditions
Pain, Abuse, Drug, Intoxication; Cannabinoids
Interventions
Cannabis, Dronabinol, Smoked Placebo, Oral Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 28, 2026, 5:08 AM EDT