NCT07126613

Mobile Alcohol Use Intervention

Development of a Just-in-Time Adaptive Intervention to Reduce High-Intensity Drinking Among Young Adults

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (actual)
• Sponsor: University of North Carolina, Chapel Hill · Academic / Other
• Sex: All
• Age: 18 Years – 25 Years
• Healthy volunteers: Not accepted

Summary

This study aims to examine the feasibility and acceptability of a mobile health intervention to reduce alcohol use and related consequences among young adults. Participants will be randomly assigned to either receive access to the mobile health intervention or receive only generic study surveys. Participants will receive text message surveys sent to their personal cellphone for 4 weeks per their assigned trial arm. All participants will receive a post-survey 30 days after their final weekly survey text.

Detailed description

This study aims to determine whether a mobile health intervention to reduce alcohol use and related consequences is acceptable and feasible among young adults who engage in high-intensity drinking (HID; 8+/10+ drinks per drinking occasion for females/males, respectively). The investigators aim to recruit 40 adults between 18-25 years of age who report at least one HID episode in the past 30 days. After providing informed consent, participants will be randomly assigned to receive the mobile health intervention or control surveys only. Participants will attend one online study visit to enroll in the study and be assigned to their study arm. All subsequent study activities will be completed asynchronously. Participants will then receive text message prompts and/or surveys to their personal cellphone either Wednesday or Thursday through Sunday for four consecutive weeks. Participants will receive a post-test survey 30 days after their final weekly survey.

Conditions

• Alcohol Misuse

Interventions

Type	Name	Description
BEHAVIORAL	Mobile Health Intervention to Reduce Alcohol Use Among Young Adults	The mobile just-in-time adaptive intervention consists of 1) a digital participant dashboard and 2) tailored messages delivered to the participant's cellphone addressing the individual and ecological contexts of alcohol use. The web-based intervention dashboard includes: 1) a drink counter for participants to log the number and type of drinks (e.g., beer, wine, mixed drink) they consume in a drinking occasion; 2) a calendar which summarizes the number of days on which a participant has consumed alcohol and the number of drinks consumed over the study period, broken out by drink type; 3) a log where participants can set drinking-related goals and update their progress on those goals; and 4) national and local substance use resources. Participants will receive messages tailored to their drinking situation and ecological context during high-risk drinking times.

Timeline

• Start date: 2025-09-29
• Primary completion: 2026-01-06
• Completion: 2026-01-06
• First posted: 2025-08-17
• Last updated: 2026-01-21

Locations

1 site across 1 country: United States