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

NCT07701304 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 450

Last updated 2026-07-27

No results posted yet for this study

Summary

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.

Conditions

  • Cannabis Use
  • Risk Perception
  • Decision Making

Interventions

BEHAVIORAL

Discrete choice experiment (DCE) survey-experiment

A discrete choice experiment (DCE) consisting of 16 distinct choice sets. Each choice set presents combinations of the following attributes: 1) Cannabis package style: 1) "Standardized" plain package, 2) plain package with brand logo and fonts, 3) brand color background with brand logo and fonts, and 4) fully branded with brand imagery, brand logo, and brand descriptors and fonts. Branding type: 1) Adventure brand vs. 2) Earthy brand. Health warning size: 1) Small (20% of packaging surface) - health warnings use currently mandated warning language from multiple jurisdictions vs. 2) Large (40% of packaging surface) - health warnings use currently mandated warning language from multiple jurisdictions. Product THC content: 1) Low THC vs. 2) High THC. Product type: 1) Joints, 2) Vape, 3) Edibles, and 4) Drinks. Participants will rate all combinations of product attributes.

Sponsors & Collaborators

  • National Institute on Drug Abuse (NIDA)

    collaborator NIH

  • University of Oklahoma

    lead OTHER

Principal Investigators

  • Zachary Massey, PhD · University of Oklahoma

Study Design

Allocation
NA
Purpose
PREVENTION
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
21 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-05-19
Primary Completion
2026-12-31
Completion
2026-12-31

Countries

  • United States

Study Locations

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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 NCT07701304 on ClinicalTrials.gov