Eye-Tracking Alcohol Warning

NCT07852013 | Not Yet Recruiting

• 1 other identifier: 20260643
• Study Type: interventional
• Target: 50
• Locations: 1 country
• Sites: 1

Brief Summary

This pilot study will evaluate communication strategies that may improve public understanding of alcohol-related cancer risks and influence behavioral intentions. The study will compare graphic alcohol cancer warning labels with the current U.S. Surgeon General text-only warning label across two stages. The first stage is an in-person, lab-based eye-tracking experiment that will examine differences in visual attention, communication outcomes, harm perception, and behavioral intentions following exposure to graphic versus text-only warning labels. The second stage is a discrete choice experiment that will examine how warning label type, warning label size, and alcohol type (beer, wine, or liquor) influence participants' intentions to reduce or stop alcohol consumption and purchase alcohol. The study will recruit 50 adults aged 21 years or older who report regular alcohol consumption.

Conditions

Alcohol

Keywords

Cancer; Alcohol Warning Labels; Graphic Warning Labels; Eye-Tracking; Discrete Choice Experiment; Cancer Risk Communication

Outcome Measures

Primary Outcomes (2)

• Visual Attention Metrics

  Visual attention to predefined areas of interest (AOIs) containing graphic and text-only alcohol warning labels on alcohol beverage container stimuli will be assessed using eye-tracking. Outcome measures include: (1) time to first fixation (milliseconds), defined as the elapsed time from stimulus presentation to the participant's first fixation on an AOI; (2) visit count, defined as the number of visits to an AOI; and (3) dwell time (milliseconds), defined as the cumulative duration of fixations within an AOI. Higher visit counts and dwell times indicate greater visual attention to the warning label.

  During Stage 1 of the single study visit, approximately 35-45 minutes

• Intention to Reduce Alcohol Consumption in the Next 30 Days

  Participants will select between warning label alternatives that vary by warning label type, warning label size, and alcohol type. The outcome will be measured as the frequency or probability of selecting warning label alternatives perceived as most likely to increase intentions to reduce alcohol consumption within the next 30 days.

  During Stage 2 of the single study visit, approximately 10-20 minutes

Secondary Outcomes (5)

• Emotional Reactions to Alcohol Warning Labels

  After each warning-label exposure during Stage 1 of the single study visit, approximately 35-45 minutes

• Change in Harm Perception

  "Baseline" or "Day 1"

• Change in Behavioral Intentions Toward Alcohol Consumption

  "Baseline" or "Day 1"

• Intention to Stop Alcohol Consumption in the Next 30 Days

  During Stage 2 of the single study visit, approximately 10-20 minutes

• Intention to Purchase Alcohol Products in the Next 30 Days

  During Stage 2 of the single study visit, approximately 10-20 minutes

Study Arms (1)

Alcohol Warning Label Exposure

EXPERIMENTAL

Participants will complete a 2-stage behavioral experiment during a single study visit. Stage 1 Eye-Tracking Experiment: Participants will complete an eye-tracking experiment during which they will view six alcohol warning-label stimuli presented one at a time in a randomized, counterbalanced order. The stimuli include graphic and text-only warning labels displayed on beer, wine, and liquor containers. Stage 2 Discrete Choice Experiment: Following completion of the eye-tracking experiment, participants will complete a discrete choice experiment consisting of 18 randomly presented choice sets that vary by warning label type, warning label size, and alcohol type. Participants' responses will be used to assess preferences and behavioral reactions to different alcohol warning-label characteristics.

Behavioral: Alcohol Cancer Warning Labels

Interventions

Alcohol Cancer Warning Labels BEHAVIORAL

Participants will be exposed to alcohol-cancer warning labels during two sequential study states. Stage 1 consists of Eye-Tracking Experiment in which participants will be exposed to six alcohol warning-label stimuli, including graphic alcohol cancer warning labels and Surgeon General text-only warning labels displayed on beer, wine, and liquor containers. Each participant will view all six warning-label stimuli for 15 seconds each in a randomized, counterbalanced order while visual attention is measured using eye-tracking technology. Stage 2 consist of the Discrete Choice Experiment in which participants will choose between 18 randomly presented choice sets. Choice sets will vary by warning label type, warning label size, and alcohol type (beer, wine, or liquor). Participants' responses will be used to assess preferences and behavioral reactions to different alcohol warning-label characteristics.

Alcohol Warning Label Exposure

Eligibility Criteria

• Age: 21 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Age ≥ 21 years
• Regular alcohol consumers (≥ 2 drinks per week)
• US residence
• Able to read and understand English
• Able and willing to provide informed consent
• Able to wear eyeglasses

You may not qualify if:

• Are not regular alcohol consumers (\< 2 drinks per week)
• Are unable to complete study procedures due to cognitive or physical limitations
• Decline or withdraw informed consent
• Pregnant women, prisoners, persons not residing in the US, and non-alcohol users
• Have eye conditions or impairments that prevent reliable eye-tracking (e.g., severe nystagmus or uncorrectable visual impairment)

Sponsors & Collaborators

• University of Miami: lead

Study Sites (1)

University of Miami - Rosenstiel Medical Science Building

Miami, Florida, 33136, United States

Location

MeSH Terms

Conditions

Neoplasms

Interventions

Ethanol

Intervention Hierarchy (Ancestors)

Alcohols; Organic Chemicals

Study Officials

• Taghrid Asfar, MD, MSPH

  University of Miami

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Taghrid Asfar, MD, MSPH

CONTACT

(305) 243-3826; tasfar@miami.edu

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Model Details: All participants will complete a within-subject eye-tracking experiment followed by a discrete choice experiment. During the eye-tracking experiment, each participant will be exposed to all six warning-label stimuli in a randomized and counterbalanced order. After completing the eye-tracking experiment, participants will complete the discrete choice experiment.

Study Record Dates

• First Submitted: September 21, 2026
• First Posted: October 1, 2026
• Study Start: October 1, 2026
• Primary Completion (Estimated): October 1, 2027
• Study Completion (Estimated): October 1, 2027
• Last Updated: October 1, 2026

Record last verified: 2026-09

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)