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The Use of Telephone-based ACT for Quitting Alcohol in the Young Population With Hazardous or Harmful Alcohol Use.
Sponsor: The Hong Kong Polytechnic University
Summary
Objectives: To investigate the effectiveness of a telephone-based acceptance and commitment therapy (ACT) in assisting young adult drinkers with hazardous or harmful alcohol use (HH drinkers) to quit drinking. Hypothesis to be tested: Primary hypothesis: 1) those who receive telephone-based ACT will report a significantly higher biochemical validated abstinence than the control groups. Secondary hypotheses are that compared with the control groups, those who receive telephone-based ACT will show: 2) significantly higher self-reported 30-day abstinence, 3) significantly greater reduction in drinking, and 4) significantly higher psychological flexibility. Design and subjects: A Hong Kong randomized controlled trial with 2-arm waitlist controlled trial design on 288 individuals (aged 18-35 years, able to read Chinese and speak Cantonese, and with AUDIT scores≥8). Study instruments: Biochemical-validated abstinence (Urine strips), timeline Follow-Back questionnaire, self-reported 30-day abstinence and Personalized Psychological Flexibility Index, Short-Form 6 Dimensions and semi-structured interviews. Interventions: The intervention group(n=144) will receive 6-weekly telephone-based ACT. The waitlist control group (n=144) will receive 6-weekly telephone-based social support intervention. Main outcome measures: Primary outcome is biochemical-validated abstinence at the 6-month follow-up. Secondary outcomes include self-reported 30-day abstinence alcohol reduction, and psychological flexibility at baseline, post-program, 1-, 3-, and 6-month follow-ups. Data analysis: Descriptive statistics, generalized estimating equations, multiple imputation, intention-to-treat, per protocol analyses, and cost-effectiveness analysis. Expected results: The telephone-based ACT is effective in assisting HH drinkers to quit drinking.
Official title: A Randomized Controlled Trial of Telephone-based Acceptance and Commitment Therapy to Assist Young Adults With Hazardous or Harmful Alcohol Use to Quit Drinking
Key Details
Gender
All
Age Range
18 Years - 35 Years
Study Type
INTERVENTIONAL
Enrollment
288
Start Date
2026-08-01
Completion Date
2029-08-01
Last Updated
2026-03-04
Healthy Volunteers
No
Conditions
Interventions
Telephone-based ACT
Each participant will join a six-session weekly telephone-based ACT programme conducted by the interventionists. Each session will last approximately 45-60 minutes.
Telephone-based social support
Participants will receive weekly 45-minute telephone-based social support from an interventionist(not involved in the intervention group) for 6 weeks, which mimics the time and attention received by those in the intervention group.