A Community-Based Intervention to Reduce Alcohol Use in Vietnamese Men

December 11, 2024 updated by: Chulalongkorn University

The Effect of a Community-Based Protective Behavioral Strategies Program on Alcohol Use Among Adult Men With Hazardous Alcohol Use in Vietnam

This study aims to evaluate the effectiveness of a community-based Protective Behavioral Strategies (PBS) program in reducing alcohol use, severity of alcohol-related problems, and intention to use alcohol among people with hazardous alcohol use (HAU) in Vietnam. In this randomized controlled trial, 104 men aged 35-44 years, identified as having HAU (Alcohol Use Disorders Identification Test score = 8-15), will be recruited from a rural area in Thai Nguyen province, Vietnam. Participants will be randomly assigned in a 1:1 ratio to either the intervention or control group using stratified blocked randomization. The intervention group will participate in a community-based PBS program, which includes five weekly 90-minute sessions, with Short Message Service (SMS) reminders sent three times weekly after each session to reinforce PBS practices. The control group will receive usual care only.

The primary outcome is alcohol use, assessing both the quantity and frequency of consumption, measured at 1 month and 3 months post-intervention. Secondary outcomes include the severity of alcohol-related problems and intention to use alcohol. These will be assessed at baseline and the 3-month follow-up. Two-way repeated measures Multivariate analysis of variance (MANOVA) and regression models will be conducted to evaluate the effects of the intervention on the primary and secondary outcomes.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

* Background and significance: Hazardous alcohol use (HAU) represents a significant public health concern, particularly among adult men in Vietnam. Effective interventions are needed to reduce HAU and its associated health risks. Protective Behavioral Strategies (PBS) have shown promise in mitigating HAU behaviors by promoting safer drinking practices and enhancing self-regulation among individuals.

  • Study objectives:

    1. To compare the differences in the primary outcome (alcohol use) between the intervention and control groups at 1 month and 3 months post-intervention, and the differences in the secondary outcomes (severity of alcohol-related problems and intention to use alcohol) at 3 months post-intervention.
    2. To compare the differences in the primary outcome (alcohol use) at 1 month and 3 months post-intervention, and the differences in the secondary outcomes (severity of alcohol-related problems and intention to use alcohol) at 3 months post-intervention, within the intervention group compared to the pre-test.
  • Study design:

This study employs a randomized controlled design. Alcohol use will be measured at both 1 month and 3 months after the intervention, whereas the secondary outcomes will be measured at 3 months. The 1-month follow-up allows for the evaluation of immediate changes in drinking behavior, while the 3-month follow-up assesses whether these changes are sustained. By comparing outcomes across both time points, the study can track the trajectory of the intervention's impact and identify any patterns of relapse or continued improvement. These follow-up periods align with common practice in alcohol intervention research.

* Intervention: The intervention group will participate in a community-based PBS program, which is structured around PBS as its central framework, enhanced by Alcohol Brief Intervention (functioning as a motivating component), and Behavioral Skills Training model (enhancing the learning of each PBS skill through a structured approach: instruction, modeling, rehearsal, and feedback). The community-based PBS program consists of 5 weekly sessions including Setting safe drinking limits, Choosing non-alcoholic drinks, Planning Ahead, Slowing down drinking, and Avoiding Risky Drinking situations each lasting 90 minutes.

The sessions will be delivered by the researcher in an in-person group format (10-12 participants per group) at a healthcare facility. Each session is structured as follows: Part 1-30 minutes: Introduction, relationship-building, and reviewing previous content. This segment focuses on fostering a supportive environment and reinforcing participants' connection with the program. Part 2-60 minutes: Learning and practicing PBS. Participants will be introduced to specific strategies each week, followed by hands-on practice, group discussions, and scenario-based exercises that encourage the application of PBS in real-life situations.

After each session, participants will receive three Short Message Service (SMS) text messages per week (a random day, Friday, and Saturday). These messages encourage participants to apply the PBS learned in the group sessions. The main activities in each session are briefly summarized below.

* Usual care: Usual care refers to the standard services provided by primary care nurses to people with HAU in the community, as per national guidelines. This typically includes educational sessions on the adverse effects of alcohol, guidance on relevant laws and health regulations, and referrals to healthcare services.

  • Outcome measures:

    • Alcohol use is measured by both the amount and frequency of alcohol consumption. The amount of alcohol use is quantified as the total grams of pure alcohol that participants consumed per week in the previous month measuring at baseline, 1 month, and 3 months post-intervention. This is calculated using the formula: Volume (ml) × Alcohol by Volume (%) × 0.79, where Alcohol by Volume is the alcohol by volume percentage and 0.79 is the conversion factor for the density of ethanol (Vietnamese Ministry of Health, 2020). Frequency of alcohol use is defined as the number of days per week in the previous month that participants consume alcohol measuring at baseline, 1 month, and 3 months post-intervention. These variables are measured using the Alcohol Timeline Follow back.
    • The severity of alcohol-related problems refers to the participants' self-report of the extent and intensity of negative consequences resulting from alcohol use, measured at baseline and 3 months post-intervention. These consequences are categorized into physical, intrapersonal, interpersonal, social responsibility, and impulse control domains. This variable is measured using the Drinker Inventory of Consequences.
    • Intention to use alcohol is operationally defined as participants' self-reported intention or willingness to consume alcohol within the next 30 days. This is measured using a 7-point Likert scale at baseline and 3 months post-intervention in response to the statement: "I intend to drink alcohol in the next 30 days" with responses ranging from 1 to 7.
  • Data Analysis:

Data will be analyzed using Statistical Package for the Social Sciences (SPSS) version 28.0. Two-way repeated measures Multivariate analysis of variance (MANOVA) will be employed to assess changes in outcomes over time and between groups. Regression models will be utilized to explore the relationship between the intervention and changes in alcohol use and associated outcomes.

Study Type

Interventional

Enrollment (Estimated)

104

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Thailand
    • Bangkok, Thailand
      • Bangkok, Bangkok, Thailand, Thailand, 10330
        • Chulalongkorn University, Faculty of Nursing
        • Contact:
        • Contact:
        • Principal Investigator:
          • Penpaktr Uthis, Associate Professor

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Having a total AUDIT score from 8 to 15
  • Completing at least primary school
  • Able to use the Vietnamese language
  • Having a mobile phone
  • Willing to participate in this study

Exclusion Criteria:

  • Using alcohol and other illicit drugs at the same time
  • Having any physical illness or psychiatric disorders

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Control Group
Participants receiving the usual care
Experimental: A Community-Based Protective Behavioral Strategies Program
Participants receive the community-based Protective Behavioral Strategies program
Behavioral: A community-based Protective Behavioral Strategies program

A 5-week group program delivered in a healthcare setting to teach and practice protective behavioral strategies. The objectives of each session are:

Session 1: Setting Safe Drinking Limit: The participants can identify the risk related to their drinking behavior, calculate a standard drink, and set a safe drinking limit.

Session 2: Choosing Nonalcoholic Drinks: The participants can understand the benefits of using nonalcoholic beverages and identify and select nonalcoholic beverages.

Session 3: Planning Ahead: The participants can make a plan to stop using during drinking events and know how to say "no" to alcohol use.

Session 4: Slowing down drinking: The participants can understand the benefits of slowing down drinking and know how to slow down their drinks.

Session 5: Avoid Risky Drinking Situations: The participants can understand the negative effects of excessive drinking and know how to avoid excessive drinking.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Alcohol use
Time Frame: Baseline, 1 month and 3 months post-intervention
Alcohol use is measured by both the amount and frequency of alcohol consumption. The amount of alcohol use is quantified as the total grams of pure alcohol that participants consumed per week in the previous month measuring at baseline, 1 month, and 3 months post-intervention. This is calculated using the formula: Volume (ml) × ABV(%) × 0.79, where ABV is the alcohol by volume percentage and 0.79 is the conversion factor for the density of ethanol. Frequency of alcohol use is defined as the number of days per week in the previous month that participants consume alcohol measuring at baseline, 1 month, and 3 months post-intervention. These variables are measured using the Alcohol Timeline Follow back (TLFB).
Baseline, 1 month and 3 months post-intervention

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Severity of alcohol-related problems
Time Frame: Baseline and 3 months post-intervention
The severity of alcohol-related problems refers to the participants' self-report of the extent and intensity of negative consequences resulting from alcohol use, measured at baseline and 3 months post-intervention. These consequences are categorized into physical, intrapersonal, interpersonal, social responsibility, and impulse control domains. This variable is measured using the Drinker Inventory of Consequences (DrInC).
Baseline and 3 months post-intervention
Intention to use alcohol
Time Frame: Baseline and 3 months post-intervention
Intention to use alcohol is operationally defined as participants' self-reported intention or willingness to consume alcohol within the next 30 days. This is measured using a 7-point Likert scale at baseline and 3 months post-intervention in response to the statement: "I intend to drink alcohol in the next 30 days" with responses ranging from 1 to 7.
Baseline and 3 months post-intervention

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Chulalongkorn University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

January 1, 2025

Primary Completion (Estimated)

May 1, 2025

Study Completion (Estimated)

May 1, 2025

Study Registration Dates

First Submitted

November 27, 2024

First Submitted That Met QC Criteria

November 27, 2024

First Posted (Actual)

December 3, 2024

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

December 11, 2024

Last Verified

November 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FONCU2601

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Sharing Time Frame

the IPD and supporting information will be available 6 months after the publication of primary results and will remain accessible for 2 years.

IPD Sharing Access Criteria

Researchers with a valid scientific purpose may access the de-identified IPD and supporting information upon submission of a data-sharing request. Requests should include a research proposal and the intended use of the data.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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