Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age21+
SponsorUniversity of Oklahoma
About this trial
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.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
None
Disqualifiers
None
Trial design
Design model
Single group
Treatments tested in this trial
Discrete choice experiment (DCE) survey-experiment
BehavioralA 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.
Treatment groups
450 Participants
are divided into 1 treatment groupGroup A: Discrete choice experiment (DCE) cohortExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Risk perceptions about cannabis products
Binary measure using best-worst scaling. For each question, participants will also have the option of indicating none of the above/opt-out as a response. For each choice set, the statement selected as the best option will be coded using a value of 1, and the worst will be coded as -1. The remaining statements in that set will be coded as 0. If the participant selects none of the above, all statements in that choice set will be assigned a value of 0.
Time frame
At the time of survey completion (approximately 15 minutes)2
Cannabis product use intentions
Binary measure using best-worst scaling. For each question, participants will also have the option of indicating none of the above/opt-out as a response. For each choice set, the statement selected as the best option will be coded using a value of 1, and the worst will be coded as -1. The remaining statements in that set will be coded as 0. If the participant selects none of the above, all statements in that choice set will be assigned a value of 0.
Time frame
At the time of survey completion (approximately 15 minutes)Sponsors and contacts
Click on the lead sponsor to view all of their trials.
University of Oklahoma
Lead sponsor
National Institute on Drug Abuse (NIDA)
Collaborator
Source ClinicalTrials.gov