This study is looking at how different types of smoked cannabis affect how much alcohol people drink. Researchers are testing THC-dominant cannabis (with 9.53% THC), CBD-dominant cannabis (with 11.27% CBD), and a cannabis placebo (a non-active version). You would also receive either an alcoholic drink or a non-alcoholic placebo drink. The main goal is to see how many milliliters of alcohol are consumed after smoking cannabis. To join, you need to be 21-50 years old, speak English, have smoked cannabis and had heavy drinking in the past two months, and be in good physical health. You cannot be pregnant or nursing, or have other drugs in your system besides cannabis. The study aims to enroll up to 350 participants. The current status of the study is unclear.

Study design

This is an interventional study with a repeated measures design, meaning participants will be tested multiple times. It plans to enroll up to 350 participants.

What's involved

Participants will attend a baseline session, three experimental sessions, and then use a smartphone app for a 4-week period in their natural environment.

Compensation

Not stated in the trial record.

Follow-up

Participants will be followed for a 4-week period in their natural environment after the experimental sessions.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.