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Alcohol and Cannabis Concentrates Co-Administration

NCT05999344 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 146

Last updated 2025-11-18

No results posted yet for this study

Summary

The goal of this study is to learn about the effects of combining alcohol with cannabis concentrate products which contain high levels of THC. The main question\[s\] it aims to answer are, 1) How does the order in which someone consumes THC and alcohol in a given co-use session impact outcomes such as blood alcohol level, heart rate or subjective drug effects, and 2) how does THC percentage in cannabis influence outcomes following alcohol and cannabis co-administration. Participants will be scheduled for our mobile lab to come to their residence. During the session, they will:

* consume a standardized dose of alcohol as well as use their own preferred cannabis concentrate product.
* they will then remain in our mobile lab for about 4 hours and complete some surveys as well as do some cognitive tasks on an iPad every 30 minutes.
* They will also have their blood drawn three times throughout the session, and will periodically be asked to blood into a breathalyzer to measure blood alcohol level.

Researchers will compare people who use alcohol prior to cannabis to those who use cannabis prior to alcohol to determine whether order of use impacts outcomes.

Conditions

Interventions

OTHER

commercially available cannabis administered prior to commercially available alcohol

Self administration of cannabis prior to researcher administered alcohol

OTHER

commercially available alcohol administered prior to commercially available cannabis

Researcher administered alcohol prior to self-administration of cannabis

Sponsors & Collaborators

  • Institute of Cannabis Research, Colorado State University Pueblo

    collaborator UNKNOWN

  • Colorado State University

    collaborator OTHER

  • University of Colorado, Denver

    lead OTHER

Principal Investigators

  • Hollis C Karoly, PhD · University of Colorado, Denver

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-12-16
Primary Completion
2024-08-01
Completion
2024-08-01

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05999344 on ClinicalTrials.gov