Ethanol and Cannabinoid Effects on Simulated Driving and Related Cognition: Substudy III

NCT ID: NCT02710331

Last Updated: 2025-04-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-03-31

Study Completion Date

2025-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The overarching goal of this study is to characterize the effects of ethanol and cannabinoids on simulated driving and related cognition.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

To study the effects of ethanol clamped at BAC 0.04% (equivalent to consuming approximately 2 drinks over 1 hour) and oral Dronabinol (10 mg capsule) on driving.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Cannabis Alcohol Effect Driving Under the Influence of Alcohol and Other Drugs

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Active THC and Placebo Ethanol

Group Type EXPERIMENTAL

Active Dronabinol

Intervention Type DRUG

10 mg capsule of Dronabinol will be administered orally.

Placebo

Intervention Type DRUG

Control: no alcohol, administered for \~80 minutes.

Active THC and Active Ethanol

Group Type EXPERIMENTAL

Active Dronabinol

Intervention Type DRUG

10 mg capsule of Dronabinol will be administered orally.

Active Ethanol

Intervention Type DRUG

Target BrAC of 0.04% reached over 20 minutes and then clamped to maintain this dose for an additional 60 minutes. This dose is equivalent to consuming approximately 2 drinks over 1 hour. Administered over a total of 80 minutes.

Placebo THC and Active Ethanol

Group Type EXPERIMENTAL

Placebo

Intervention Type DRUG

Control: Placebo pill (no active cannabinoids) administered orally.

Active Ethanol

Intervention Type DRUG

Target BrAC of 0.04% reached over 20 minutes and then clamped to maintain this dose for an additional 60 minutes. This dose is equivalent to consuming approximately 2 drinks over 1 hour. Administered over a total of 80 minutes.

Placebo THC and Placebo Ethanol

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Control: no alcohol, administered for \~80 minutes.

Placebo

Intervention Type DRUG

Control: Placebo pill (no active cannabinoids) administered orally.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Active Dronabinol

10 mg capsule of Dronabinol will be administered orally.

Intervention Type DRUG

Placebo

Control: no alcohol, administered for \~80 minutes.

Intervention Type DRUG

Placebo

Control: Placebo pill (no active cannabinoids) administered orally.

Intervention Type DRUG

Active Ethanol

Target BrAC of 0.04% reached over 20 minutes and then clamped to maintain this dose for an additional 60 minutes. This dose is equivalent to consuming approximately 2 drinks over 1 hour. Administered over a total of 80 minutes.

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Males or females 21 to 55 years of age (extremes included).
* Exposed to cannabis at least once.
* Exposed to alcohol at least once.
* Able to provide informed consent.

Exclusion Criteria

* Cannabis naïve
* Alcohol naïve
* Positive pregnancy screen
* Hearing deficits
* Sesame oil allergy
Minimum Eligible Age

21 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Yale University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Deepak C. D'Souza

Professor of Psychiatry

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Biological Studies Unit, VA Connecticut Healthcare System

West Haven, Connecticut, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

1501015208.C

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

The Effects of ∆-9-THC and Naloxone in Humans
NCT01591629 COMPLETED EARLY_PHASE1
Behavior Brain Responses
NCT03964350 COMPLETED EARLY_PHASE1
THC Memory & Reward Learning Pilot
NCT05116527 ACTIVE_NOT_RECRUITING PHASE1/PHASE2
Cannabinoids, Learning, and Memory
NCT02407808 ACTIVE_NOT_RECRUITING PHASE1
A Bioavailability Study on Dronabinol
NCT03098940 UNKNOWN PHASE1
Cannabis Effects on Electroencephalography
NCT04316598 TERMINATED PHASE1
Age-Related Effects of THC
NCT04294966 COMPLETED EARLY_PHASE1
The Effects of Cannabidiol and ∆-9-THC in Humans
NCT01180374 COMPLETED EARLY_PHASE1