Effect of an Internet-based Dialectical Behaviour Therapy-informed Skills Training for Adult Drinkers

Study Overview
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Brief Summary
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To determine the feasibility, acceptability, and preliminary effects of an internet-based DBT-ST for reducing alcohol consumption and improving psychological distress/emotional regulation in adult drinkers To explore the participants' experiences and perceptions of the proposed intervention

Official Title
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Effect of an Internet-based Dialectical Behaviour Therapy-informed Skills Training for Reducing Alcohol Consumption and Improving Psychological Distress of Adult Drinkers: A Pilot Randomised Controlled Trial

Conditions
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Alcohol Drinking

Intervention / Treatment
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* Behavioral: Internet-based dialectical behaviour therapy-informed skills training
* Behavioral: Monthly health education


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Hong Kong Chinese aged ≥18 Score ≥8 on the Alcohol Use Disorders Identification Test Indicate psychological distress as measured by the Depression, Anxiety, and Stress Scale-21 Have an intention to stop drinking Have an electronic device and are willing to receive interventions via the internet Exclusion Criteria: Experiencing psychotic disorders/cognitive impairment/communication problems Participating in other alcohol abstinence/related psychosocial interventions

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Supportive Care
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: DBT-ST group<br>Participants in the intervention group will receive the DBT-ST by means of a free video-communication app. Over the next 13 weeks from the baseline, the intervention group will receive a weekly 120-minute internet-based DBT-ST focusing on the four modules of DBT-ST. | Behavioral: Internet-based dialectical behaviour therapy-informed skills training<br>* Adaptive applications of DBT-ST for drinkers with psychological distress<br>|
| Other: TAU group<br>Participants in the wait list control group will receive a monthly health education for three months that provides general health information and sharing sessions, which is one of the routine care for drinkers during the first 3-4 months after they seek help for drinking problem (waiting period for further intervention). | Behavioral: Monthly health education<br>* General health information and sharing sessions<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Alcohol consumption | The Chinese version of the Alcohol Use Disorders Identification Test-Concise (AUDIT-C) | Baseline, Post-intervention (upon completion of the 13-week DBT-ST), 3-month post-intervention | 
| Level of psychological distress | Symptoms of depression, anxiety and stress | Baseline, Post-intervention (upon completion of the 13-week DBT-ST), 3-month post-intervention | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Self-reported alcohol abstinence | Self-reporting of quitting | Baseline, Post-intervention (upon completion of the 13-week DBT-ST), 3-month post-intervention | 
| Emotion dysregulation | Levels of emotion dysregulation | Baseline, Post-intervention (upon completion of the 13-week DBT-ST), 3-month post-intervention | 
| Distress tolerance | Perceived ability to tolerate emotional distress | Baseline, Post-intervention (upon completion of the 13-week DBT-ST), 3-month post-intervention | 
| Coping response | Self-report measure of coping strategies | Baseline, Post-intervention (upon completion of the 13-week DBT-ST), 3-month post-intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Dialectical behaviour therapy, Skills training, Internet-based intervention, Psychological distress, Alcohol drinking, Adult drinkers