Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment

This discrete choice experiment (DCE) study aims to address gaps in cannabis packaging regulatory research by testing how variations in cannabis packaging and health warning design impact reactions to packaging and intentions about cannabis use. The goal of this work is to identify the most effective combination of health warning features to improve consumer awareness of cannabis health risks. Establishing criteria for cannabis products in the US is critical because inconsistent state guidelines have resulted in contradictory policies in legal retail states, arguably leading to increased hazardous use and failure to meet public health standards. The contributions of this study's outcomes are expected to be significant because they will benefit public health as cannabis becomes available in legal retail markets and regulatory and governmental agencies seek effective ways to communicate cannabis risks to the public.

NCT Number	NCT07701304
Lead Sponsor	University of Oklahoma Collaborators: National Institute on Drug Abuse (NIDA)
Conditions	Cannabis Use, Risk Perception, Decision Making
Enrollment	450 participants
Start Date	2026-05-19
Primary Completion	2026-12-31 (estimated)
Study Completion	2026-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-07-27