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ClinicalTrials.gov public records Last synced May 22, 2026, 3:41 AM EDT

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

Showing 1–9 of 9 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers
Conditions
Drug Abuse, Intoxication by Drug, Impairment
Interventions
Placebo, THC, CBD, THC + CBD
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced May 22, 2026, 3:41 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers
Conditions
Cannabis Intoxication
Interventions
Cannabis, Pregnenolone 250 mg, Pregnenolone 500 mg, Placebo, Placebo brownie
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced May 22, 2026, 3:41 AM EDT
Conditions
Marijuana Impairment
Interventions
Low Dose THC Marijuana, High Dose THC Marijuana, Placebo Marijuana
Drug
Lead sponsor
Yale University
Other
Eligibility
20 Years to 40 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 22, 2024 · Synced May 22, 2026, 3:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
Conditions
Intoxication Alcohol, Intoxication THC, Intoxication Combined Alcohol THC
Interventions
Dronabinol, Ethanol, Placebo dronabinol, Placebo ethanol
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
316 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced May 22, 2026, 3:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
Conditions
Drug Abuse, Intoxication by Drug, Impairment
Interventions
Placebo Cannabis, 20 mg CBD Cannabis, 20 mg CBD + 20 mg THC Cannabis, 20 mg THC Cannabis
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced May 22, 2026, 3:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
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
Source: ClinicalTrials.gov public record
Updated Oct 8, 2025 · Synced May 22, 2026, 3:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
Conditions
Marijuana Impairment
Interventions
Low dose THC marijuana, High dose THC marijuana, Placebo marijuana
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 40 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 22, 2024 · Synced May 22, 2026, 3:41 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers
Conditions
Marijuana Usage, Alcohol Drinking
Interventions
One day with a dose of placebo cannabis paired with alcohol, One day with a dose of active THC cannabis paired with alcohol
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
21 Years to 40 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced May 22, 2026, 3:41 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers
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 May 22, 2026, 3:41 AM EDT