Clinical Effectiveness of a Motivational Interviewing-Based Conversational Mobile Application for High-Risk Drinkers
Evaluating the Clinical Effectiveness of a Motivational Interviewing-Based Conversational Mobile Application for High-Risk Drinkers
Yonsei University
220 participants
Dec 19, 2025
INTERVENTIONAL
Conditions
Summary
This study aims to evaluate and compare the degree of alcohol reduction between high-risk drinkers who use a motivational interviewing-based conversational agent (chatbot) application for four weeks and those in the control group who do not use the application, in order to verify its clinical effectiveness.
Eligibility
Inclusion Criteria6
- Individuals aged 19 to 59 years who are capable of providing valid written informed consent.
- Individuals who meet the definition of high-risk drinking (AUDIT score ≥ 8).3.- Individuals who express a desire to reduce their alcohol consumption.
- Individuals who own and use an Android smartphone (version 8 or higher).
- Individuals who have no difficulty using mobile applications.
- Individuals who are able to communicate adequately with the research team.
- Individuals who fully understand the study procedures and voluntarily agree to participate.
Exclusion Criteria8
- Individuals who are unable to read or understand the consent form (e.g., illiterate individuals, non-Korean speakers).
- Individuals with impaired decision-making capacity.
- Pregnant individuals or those planning to become pregnant during the study period.
- Individuals who are currently participating in another clinical study.
- Individuals who are receiving treatment or counseling for alcohol-related problems.
- Individuals who use two or more mobile phones.
- Individuals who are expected to change their mobile phone or SIM card, or who plan to travel 8. abroad during the intervention period.
- Any individual deemed inappropriate for study participation at the discretion of the investigator.
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Interventions
Participants in the experimental arm will use a motivational interviewing-based conversational agent (mobile chatbot) for 4 weeks starting on the baseline assessment day (Week 0). The intervention provides daily interactive dialogues, personalized feedback, goal-setting guidance, and behavior change strategies based on motivational interviewing principles. Participants are encouraged to complete daily sessions designed to enhance motivation, support self-monitoring, and reduce high-risk alcohol consumption.
Participants in the waitlist control arm will not receive any intervention during the primary evaluation period (Week 0-16). They will complete the same reassessments as the intervention group at Week 4 and Week 16. After the Week 16 follow-up, control arm participants will be offered the same 4-week chatbot intervention for ethical considerations, followed by a final assessment at Week 20. This post-Week-16 intervention is not included in the primary efficacy analysis.
Locations(1)
View Full Details on ClinicalTrials.gov
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NCT07238998