Recruiting

Cannabis Packaging

Sponsor:

University of Oklahoma

Code:

NCT07701304

Conditions

Cannabis Use

Risk Perception

Decision Making

Eligibility Criteria

Sex: All

Age: 21+

Healthy Volunteers: Not accepted

Interventions

Discrete choice experiment (DCE) survey-experiment

Study Details

Brief 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

Study ID

NCT07701304

Start date

May 19, 2026

Status verified date

Jul, 2026

Completion date

Dec 31, 2026

Anticipated

Primary completion date

Dec 31, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 21+

Healthy Volunteers: Not accepted

Eligibility for participation includes: 1) being 21 years of age or older, 2) being able to speak and understand English, 3) self-reported having consumed cannabis in the last 30 days (any mode, e.g., flower, vape, edible, etc.), and 4) residing in a U.S. state or jurisdiction where retail (i.e., non-medical) cannabis use is legal.

Study Design

Enrollment

450 participants

Anticipated

Intervention Model

Single group

Primary purpose

Prevention

Interventions and Outcome Measures

Arms

experimental: Discrete choice experiment (DCE) cohort

Adult participants (21+) enrolled in this single-arm cohort will complete a computer-based discrete choice experiment during a single study visit (conducted online). They will review a series of hypothetical cannabis products and select their preferred options.

Interventions

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.

Primary outcome measure

  • Risk perceptions about cannabis products [ Time Frame: At the time of survey completion (approximately 15 minutes) ]
  • Cannabis product use intentions [ Time Frame: At the time of survey completion (approximately 15 minutes) ]

Central Contacts and Locations

Central contacts

Zachary Massey, PhD

405-271-6872Zachary-Massey@ou.edu

Locations

University of OKlahoma

Recruiting

Oklahoma City, Oklahoma, United States, 73104

Contacts

Zachary Massey, PhD

405-271-6872zachary-massey@ou.edu

More Information

Sponsor

University of Oklahoma

Last update posted

Jul 27, 2026

Last verified

Jul, 2026

Keywords

  • Cannabis warning labels
  • Discrete choice experiment
  • Risk perception
  • Cannabis use
  • Health communication

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of Oklahoma on 2026-07-27.