Seek, Test, Treat Strategies for Vietnamese Drug Users: A Random Controlled Trial (Project VISTA), Vietnam, 2013 (ICPSR 39802)

Version Date: Apr 23, 2026

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Principal Investigator(s):
Vu M. Quan, Johns Hopkins University

Series:

https://doi.org/10.3886/ICPSR39802.v1

Version V1

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Alternate Title

VISTA

Summary

This study is part of the Seek, Test, Treat and Retain (STTR) Collaboration Project that involved over twenty studies in the fields of HIV and drug abuse. All studies were independently developed, but were chosen for the collaboration because they focused on one or more steps of the HIV treatment cascade: Seek, Test, Treat and Retain. As part of STTR Collaboration Project, the studies were grouped into Criminal Justice-related studies and Vulnerable Population-related studies. The data collected by these studies included twelve common domains (e.g., Demographic characteristics, Mental Health) in each of which a shared questionnaire or instrument was taken up by the studies and adapted to fit the study.

Project VISTA offers drug users in Vietnam HIV testing and counseling (HTC). The primary outcome measure for this study was suppression of HIV-1 viral load below 400 copies/mL (measured at the 6 and 12 month visits). Secondary outcome measures included self-reported antiretroviral adherence, changes in CD4 cell counts, and quality of life.

A secondary seek/test study will be done to evaluate uptake of HIV testing and counseling by network referrals from the RCT participants (the data files will not be part of the STTR integrated data).

Citation

Quan, Vu M. Seek, Test, Treat Strategies for Vietnamese Drug Users: A Random Controlled Trial (Project VISTA), Vietnam, 2013. Inter-university Consortium for Political and Social Research [distributor], 2026-04-23. https://doi.org/10.3886/ICPSR39802.v1

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Funding

United States Department of Health and Human Services. National Institutes of Health. National Institute on Drug Abuse (5R01DA032057, 1R01DA032098, 1R01DA032100, 1R01DA032059, 1R01DA032083, 1R01DA032106, 1R01DA032061, 1R01DA032110, 1R01DA032080, 1R01DA032082)

Subject Terms

Geographic Coverage

Restrictions

Users are reminded that these data are to be used solely for statistical analysis and reporting of aggregated information, and not for the investigation of specific individuals or organizations.

Access to the data is restricted. Users interested in obtaining these data must complete a Restricted Data Use Agreement. Data are provided via ICPSR's Virtual Data Enclave (VDE). Apply for access to these data through the ICPSR VDE portal. Information and instructions are available within the data portal. For further assistance please reference the VDE Guide to learn about the application process, about using the VDE, and how to request disclosure review of VDE output.

Distributor(s)

Inter-university Consortium for Political and Social Research
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Time Period(s)

2013-01 (ongoing)

Date of Collection

2013-01 (ongoing)

Data Collection Notes

  1. Please note that all data files have been converted to the Stata format, trimmed to include only participants enrolled in the study, and had cross-study IDs and other variables appended.

  2. This study includes baseline and longitudinal data files, study summaries, and study data documentation.

  3. This release is a Fast Track Release and is distributed as it was received from the data depositor. Users should consult the investigator(s) if further information is needed.

  4. Follow-up assessments were conducted at 3, 6, 9, 12, and 18 months, while viral load was measured at baseline, and at the 6-and 12-month follow-ups.

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Study Purpose

This study aims to determine the effects of a structured intervention on increasing access to HIV care and addiction care and on improving antiretroviral adherence and treatment outcomes among HIV-positive male injection drug users (IDUs) released from drug treatment centers (DTC) in Vietnam.

Study Design

HIV-positive drug users who met criteria were randomized (n = 400) to an intervention or control arm in a ratio of 1:1 (Group 1).

  • Participants in the control arm received referrals for ART at public HIV clinics and for methadone maintenance treatment at public methadone clinics, where they received standard care regimens.
  • Intervention arm participants received ART and methadone maintenance at an integrated methadone and antiretroviral therapy (iMART) clinic, ART access support, and ART adherence support through the use of text messaging and phone calls.

Sample

In this randomized clinical trial, participants were recruited in the community through peer outreach and peer referrals.

Time Method

Longitudinal: Cohort / Event-based

Universe

Community-dwelling people who inject drugs who have been released from drug treatment center (DTC) in Vietnam.

Unit(s) of Observation

Individual

Data Type(s)

Mode of Data Collection

Description of Variables

The data files include variables about participant's criminal and legal involvement, sexual behaviors, drug use behavior, and health history. Demographic variables include age, gender, and ethnicity.

Presence of Common Scales

Center for Epidemiologic Studies Depression Scale (CES-D Scale) in Vietnamese.

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Original Release Date

2026-04-23

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Notes

  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.

  • ICPSR usually offers files in multiple formats for researchers to be able to access data and documentation in formats that work well within their needs. If you have questions about the accessibility of materials distributed by ICPSR or require further assistance, please visit ICPSR’s Accessibility Center.

  • One or more files in this data collection have special restrictions. Restricted data files are not available for direct download from the website; click on the Restricted Data button to learn more.

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