Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 24, 2026, 11:20 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 197 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
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
Recruiting Phase 1 Interventional Accepts healthy volunteers

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

NCT05865470
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
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Behavioral Economic Analysis of Demand for Marijuana

NCT03518567
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
Terminated Phase 1Phase 2 Interventional Results available

Nabilone in Cannabis Users With PTSD

NCT03251326
Conditions
Cannabis, Post Traumatic Stress Disorder
Interventions
Nabilone, Cannabis, Propranolol, Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
New York, New York
Completed Phase 3 Interventional Accepts healthy volunteers

Cannabis Versus Oxycodone for Pain Relief

NCT02892591
Conditions
Back Pain, Neck Pain
Interventions
Cannabis, Oxycodone, Placebo for Cannabis, Placebo for Oxycodone
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years and older
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cannabis Edibles Packaging Imagery Experiment

NCT06358144
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
Not yet recruiting Phase 2Phase 3 Interventional

Synthetic THC And Blood Pressure

NCT07231965
Conditions
Blood Pressure
Interventions
Dronabinol, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years to 40 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Completed Early Phase 1 Interventional Accepts healthy volunteers

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

NCT01180374
Conditions
Healthy
Interventions
Cannabidiol, Delta-9-THC, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
West Haven, Connecticut
Completed Phase 1 Interventional Accepts healthy volunteers

Standardized Field Test for Marijuana Impairment II

NCT05115513
Conditions
Marijuana Impairment
Interventions
Medium THC, Placebo THC
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Hartford, Connecticut
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Differences in Cannabis Impairment and Its Measurement Due to Route of Administration

NCT03122691
Conditions
Behavioral Pharmacology of Cannabis
Interventions
cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
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
Completed Not applicable Interventional Accepts healthy volunteers

Nicotine and Cannabis Vape Labeling Experiment - Spring 2025

NCT06919276
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
Completed Early Phase 1 Interventional Accepts healthy volunteers

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

NCT01591629
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
Conditions
Cannabis, Dependence
Interventions
THC, Rimonobant, Rimonabant
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
2
States / cities
Baltimore, Maryland
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
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Marijuana's Impact on Alcohol Motivation and Consumption

NCT02983773
Conditions
Alcohol Drinking, Marijuana
Interventions
THC 7.2%, THC 3.1%, Placebo
Drug
Lead sponsor
Brown University
Other
Eligibility
21 Years to 44 Years
Enrollment
157 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Providence, Rhode Island
Completed Early Phase 1 Interventional Results available

Dronabinol Interactions With Cognitive Enhancing Drug in Humans

NCT00842985
Conditions
Cannabis, Marijuana Abuse
Interventions
drug condition
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
West Haven, Connecticut
Conditions
Bipolar Disorder
Interventions
Dronabinol, Epidiolex, Placebos
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 50 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
San Diego, California
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of Psychotherapeutic Advertising Claims on Cannabis Purchasing

NCT07216911
Conditions
Anxiety, Depression, Cannabis Use
Interventions
CC, PAC, WL
Behavioral
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
21 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Lebanon, New Hampshire
Conditions
Pain, Advanced Cancer
Interventions
Nabiximols
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
660 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
37
States / cities
Phoenix, Arizona • El Cajon, California • Gilroy, California + 31 more
Terminated Early Phase 1 Interventional Accepts healthy volunteers

N-acetylcysteine Effects on Tetrahydrocannabinol

NCT02335060
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
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
Conditions
Opioid Use, Marijuana, Chronic Pain
Interventions
Discounted Vouchers for Medical Cannabis Soft-Gel Capsule Products
Other
Lead sponsor
Vireo Health
Other
Eligibility
18 Years to 99 Years
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Queens, New York
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Comparison Between Marijuana Smoked in Cigarette Paper Versus Cigar Paper

NCT00374127
Conditions
Marijuana Dependence
Interventions
Marijuana blunt, marijuana cigarette
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
New York, New York