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Showing 1–24 of 49 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Active Dronabinol Clear all
Terminated Phase 3 Interventional Results available

Evaluation of the Effect of Nabiximols Oromucosal Spray on Clinical Measures of Spasticity in Participants With Multiple Sclerosis

NCT04984278
View directory record Official record
Conditions
Spasticity With Multiple Sclerosis
Interventions
Nabiximols, Placebo
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
6
States / cities
Denver, Colorado • Naples, Florida • Tampa, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 2, 2026, 2:04 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Genetic Basis of the Risk and Consequences of Cannabis Exposure in Humans

NCT06058702
View directory record Official record
Conditions
Schizophrenia, Cannabis Use Disorder
Interventions
Delta-9-THC Very Low Dose, Placebo, Delta-9-THC Medium Dose
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 60 Years
Enrollment
215 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 2, 2026, 2:04 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Ethanol and Cannabinoid Effects on Simulated Driving and Related Cognition

NCT02404688
View directory record Official record
Conditions
Cannabis, Alcohol Effect, Driving Under the Influence of Alcohol and Other Drugs
Interventions
Active delta-9-THC, Placebo, Active Ethanol
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2026
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 2, 2026, 2:04 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Cognitive and Psychophysiological Effects of Delta-9-Tetrahydrocannabinol in Bipolar Disorder

NCT03206463
View directory record Official record
Conditions
Delta-9-Tetrahydroncannabinol, Bipolar Disorder, Healthy Controls
Interventions
4 mg Delta-9-THC, Placebo, 2 mg Delta-9-THC
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 30, 2022 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Tetrahydrocannabinol (THC) and Sleep

NCT03560934
View directory record Official record
Conditions
Sleep, THC, Marijuana, Cannabis
Interventions
Dronabinol
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
21 Years to 34 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 2, 2026, 2:04 PM 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 22, 2026 · Synced Sep 2, 2026, 2:04 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Gender Related Differences in the Acute Effects of Delta-9-Tetrahydrocannabinol in Healthy Humans

NCT02781519
View directory record Official record
Conditions
Cannabis
Interventions
THC, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2026
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

The Effects of ∆-9-THC and Naloxone in Humans

NCT01591629
View directory record Official record
Conditions
Healthy
Interventions
Naloxone, Delta-9-THC, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 2, 2026, 2:04 PM EDT
Withdrawn Early Phase 1 Interventional

Investigating the Effect of Dronabinol on Post-surgical Pain

NCT04099355
View directory record Official record
Conditions
Knee Replacement, Arthropathy of Knee
Interventions
Dronabinol 5mg Cap, Non-active comparator
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 12, 2023 · Synced Sep 2, 2026, 2:04 PM EDT
Recruiting Phase 1 Interventional

THC Effects on Glucose in Type 2 Diabetes

NCT05322213
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
THC, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 2, 2026, 2:04 PM 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 28, 2023 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Low-dose Naltrexone in Combination With a Range of Smoked Marijuana

NCT00743145
View directory record Official record
Conditions
Marijuana Smoking
Interventions
Inactive Marijuana (0% THC), Active Marijuana (5.5% THC), Active Marijuana (6.2% THC), Naltrexone, Placebo naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 13, 2018 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Phase 2 Interventional

Dronabinol Versus Placebo in Treatment and Prevention of Highly Active Anti-Retroviral Therapy (HAART)-Related Nausea and Vomiting

NCT00642499
View directory record Official record
Conditions
Highly Active Antiretroviral Therapy (HAART)-Related Nausea and Vomiting, HIV Infections
Interventions
Dronabinol, Placebo
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
18 Years to 70 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
36
States / cities
Bakersfield, California • Fresno, California • Los Angeles, California + 27 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2008 · Synced Sep 2, 2026, 2:04 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Dronabinol as an Adjunct for Reducing Pain

NCT06454669
View directory record Official record
Conditions
Low Back Pain, Chronic Pain, Back Injuries
Interventions
Dronabinol, Placebo
Drug
Lead sponsor
Christopher D. Verrico
Other
Eligibility
18 Years to 64 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 2, 2026, 2:04 PM 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 2, 2026, 2:04 PM EDT
Recruiting Phase 2 Interventional

Mechanisms of Cannabidiol in Persons With MS: the Role of Sleep and Pain Phenotype

NCT05269628
View directory record Official record
Conditions
Multiple Sclerosis, Sleep, Pain
Interventions
Cannabidiol (CBD), Tetrahydrocannabinol (THC), Placebo CBD, Placebo THC
Drug
Lead sponsor
Tiffany J. Braley, MD, MS
Other
Eligibility
18 Years to 65 Years
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 2, 2026, 2:04 PM EDT
Recruiting Phase 2 Interventional

Proof of Concept Trial of Cannabis Derivatives in Neuropathic Pain

NCT05351801
View directory record Official record
Conditions
Neuropathic Pain, Peripheral Neuropathic Pain
Interventions
THC (Syndros), CBD (Epidolex), THC + CBD (Nabiximols), Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
6
States / cities
San Diego, California • West Los Angeles, California • West Haven, Connecticut + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Testing the Interactive Effects of Delta-9-Tetrahydrocannabinol and Pregnenolone

NCT02576912
View directory record Official record
Conditions
Healthy
Interventions
Active Delta-9-THC, Active Pregnenolone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effect of Lofexidine and Oral THC on Marijuana Withdrawal and Relapse

NCT00373503
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Lofexidine, dronabinol, Marijuana
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 4, 2013 · Synced Sep 2, 2026, 2:04 PM 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 2, 2026, 2:04 PM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers

Lung Health and Breath Biomarkers: Acute Effects of Inhaled Cannabis

NCT07694466
View directory record Official record
Conditions
Cannabis Use, Tobacco, Biomarkers
Interventions
Cannabis (THC), Tobacco Cigarette
Drug
Lead sponsor
Hannah Harris
Other
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Validation of the Drug Impaired Driving Scenario (DIDS) on the CRCDS-miniSim

NCT04970342
View directory record Official record
Conditions
Driving Behavior, Driving Under the Influence
Interventions
Placebo (Lactose) Capsule, 0.75 mg Alprazolam Capsule, Cannabis (6.18% THC / <0.025% CBD), Cannabis (0%/ THC / 0% CBD)
Drug
Lead sponsor
Timothy L. Brown
Other
Eligibility
19 Years to 45 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Phase 4 Interventional Results available

Dronabinol in Total Knee Arthroplasty (TKA)

NCT04734080
View directory record Official record
Conditions
Total Knee Arthroplasty, Opioid Use
Interventions
Dronabinol 5mg Cap, Placebo oral tablet
Drug · Other
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 70 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 2, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Results available

Opioid and Cannabinoid Interactions

NCT03705559
View directory record Official record
Conditions
Marijuana Usage, Opioid Use
Interventions
Vaporized Marijuana, Opioid Agonist, Placebo
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 2, 2026, 2:04 PM EDT