Distinguishing Alcohol Intoxication, Cannabis Intoxication and Co-intoxication Using Electroencephalography (EEG)

This is a randomized, parallel-group study designed to explore the differences between cannabis intoxication, alcohol intoxication and co-intoxication involving both alcohol and cannabis, utilizing electroencephalography (EEG) as well as more traditional intoxication measures such as breath alcohol concentration and balance metrics. If eligible for the study, participants will be randomized to complete one study session in our mobile laboratory, during which they will use either alcohol, cannabis (which will be self-administered, ad libitum) or both alcohol and cannabis.

NCT Number	NCT06259916
Lead Sponsor	Colorado State University
Conditions	Cannabis Use, Alcohol Use, Unspecified
Enrollment	99 participants
Start Date	2024-01-05
Primary Completion	2027-05-30 (estimated)
Study Completion	2027-05-30 (estimated)
Updated on ClinicalTrials.gov	2026-08-11