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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Tetrahydrocannabinol (THC) 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 1, 2026, 10:27 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of THC on Emotional Memory Retrieval

NCT03471585
View directory record Official record
Conditions
Healthy
Interventions
THC, Placebo oral capsule
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 35 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 29, 2019 · Synced Sep 1, 2026, 10:27 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

The Effects of Cannabis Use in People With Schizophrenia on Clinical, Neuropsychological and Physiological Phenotypes

NCT01832766
View directory record Official record
Conditions
Schizophrenia
Interventions
Dronabinol, Placebo Comparator
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 20, 2015 · Synced Sep 1, 2026, 10:27 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 1, 2026, 10:27 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Behavioral Pharmacology of Orally Administered THC and D-limonene

NCT06378957
View directory record Official record
Conditions
Subjective Drug Effects, THC, D-limonene
Interventions
D-Limonene, Delta-9-THC, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 55 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 1, 2026, 10:27 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Behavioral and Physiological Effects of THC and CBD

NCT03832816
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Placebo, Vaporized THC alone, Vaporized CBD alone, Vaporized CBD with THC
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 4, 2019 · Synced Sep 1, 2026, 10:27 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy Study of Dronabinol to Treat Obstructive Sleep Apnea

NCT01755091
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Dronabinol, Placebo (for Dronabinol)
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
21 Years to 64 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 28, 2021 · Synced Sep 1, 2026, 10:27 PM EDT
Not yet recruiting Phase 2 Interventional Accepts healthy volunteers

Multimodal Magnetoencephalography and Electroencephalography Exploration of the Acute Effects of THC Exposure on Neural Noise and Information Transmission Within Working Memory Networks

NCT05641766
View directory record Official record
Conditions
THC
Interventions
THC, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced Sep 1, 2026, 10:27 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of Effects of CBD Products on Anxiety Among U.S. Women

NCT05108220
View directory record Official record
Conditions
Anxiety, Generalized Anxiety Disorder
Interventions
Cannabidiol (CBD)- containing consumer products
Dietary Supplement
Lead sponsor
Radicle Science
Industry
Eligibility
24 Years to 44 Years · Female only
Enrollment
1,350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 1, 2026, 10:27 PM EDT
Recruiting Phase 2 Interventional

DReAMzz- Dronabinol and Acetazolamide Medication for Sleep Apnea (ZZ). Dose Confirmation Crossover Study for IHL-42X in Subjects With Obstructive Sleep Apnea.

NCT07635563
View directory record Official record
Conditions
Obstructive Sleep Apnea (OSA)
Interventions
IHL-42X: 2.5 mg dronabinol + 125 mg acetazolamide, IHL-42X: 5 mg dronabinol + 125 mg acetazolamide, IHL-42X: 7.5 mg dronabinol + 125 mg acetazolamide, IHL-42X: 2.5 mg dronabinol + 250 mg acetazolamide, IHL-42X: 5 mg dronabinol + 250 mg acetazolamide, IHL-42X: 7.5 mg dronabinol + 250 mg acetazolamide, IHL-42X: 2.5 mg dronabinol + 375 mg acetazolamide, IHL-42X: 5 mg dronabinol + 375 mg acetazolamide, IHL-42X: 7.5 mg dronabinol + 375 mg acetazolamide, Placebo: Negative control
Drug
Lead sponsor
Incannex Healthcare Ltd
Industry
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
14
States / cities
Chula Vista, California • Brandon, Florida • Jacksonville, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 1, 2026, 10:27 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Pharmacogenetics of Cannabinoid Response

NCT00678730
View directory record Official record
Conditions
COMT Gene Polymorphism
Interventions
delta 9 tetrahydrocannabinol
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 1, 2026, 10:27 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 7, 2025 · Synced Sep 1, 2026, 10:27 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 1, 2026, 10:27 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 1, 2026, 10:27 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparative Bioavailability of Dronabinol Oral Solution Versus Branded Capsule 5 mg Under Fasting Conditions

NCT01448772
View directory record Official record
Conditions
Bioavailability
Interventions
Dronabinol Capsules, 5 mg, Dronabinol Oral Solution
Drug
Lead sponsor
INSYS Therapeutics Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Mar 25, 2012 · Synced Sep 1, 2026, 10:27 PM 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 28, 2019 · Synced Sep 1, 2026, 10:27 PM 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 1, 2026, 10:27 PM EDT
Completed Phase 2 Interventional Results available

Trial of Dronabinol Adjunctive Treatment of Agitation in Alzheimer's Disease

NCT02792257
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
Dronabinol (Marinol®), Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
60 Years to 95 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
5
States / cities
Miami, Florida • Baltimore, Maryland • Belmont, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Sep 1, 2026, 10:27 PM EDT
Recruiting Phase 2 Interventional

Clinical Trial on Agitation in Alzheimer's Dementia

NCT05543681
View directory record Official record
Conditions
Alzheimer Disease, Agitation,Psychomotor, Care Giving Burden, NPS, Aggression
Interventions
IGC-AD1-Active, IGC-AD1-Placebo
Drug
Lead sponsor
IGC Pharma, LLC
Industry
Eligibility
60 Years and older
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
23
States / cities
Maitland, Florida • Melbourne, Florida • Miami, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 1, 2026, 10:27 PM EDT
Completed Phase 2 Interventional Results available

Pilot Study of the Safety and Efficacy of Four Different Potencies of Smoked Marijuana in 76 Veterans With PTSD

NCT02759185
View directory record Official record
Conditions
Posttraumatic Stress Disorder
Interventions
High THC cannabis, High CBD cannabis, THC/CBD cannabis, Placebo cannabis
Drug
Lead sponsor
Multidisciplinary Association for Psychedelic Studies
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Sep 1, 2026, 10:27 PM 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 4, 2012 · Synced Sep 1, 2026, 10:27 PM EDT
Not yet recruiting Phase 3 Interventional

Dronabinol and Epidiolex to Manage Uncontrolled Residual Symptoms of Buprenorphine Initiation Trial

NCT07148206
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Dronabinol Capsules, Epidiolex 100 mg/mL Oral Solution, Placebo Dronabinol, Placebo Epidiolex
Drug · Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 1, 2026, 10:27 PM EDT
Recruiting Phase 1Phase 2 Interventional

Warrior CARE: Cannabis Behavioral Health

NCT06381180
View directory record Official record
Conditions
Post Traumatic Stress Disorder, Cannabis Use, Suicide, Veterans, Marijuana
Interventions
Tetrahydrocannabinol, Cannabidiol, Placebo
Drug
Lead sponsor
Wayne State University
Other
Eligibility
19 Years to 69 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 1, 2026, 10:27 PM 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 1, 2026, 10:27 PM EDT