Comprehensive Assessment in a Longitudinal Study on Young Men Who Have Sex With Men Attracting to chemseX

Study Overview
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Brief Summary
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The study is a two-phase observational study that assess multiple aspects of study and young men who have sex with men (YMSM). Phase I of the study will be a cross-sectional descriptive study using a mixed methods data collection (focusing on qualitative data collection) to acquire information necessary for developing a more extensive study on the same matter. Phase II of the study will be a prospective cohort study using a quantitative data collection. Findings from phase I will guide the development of phase II which consist of a larger number of YMSM, important baseline and follow-up questionnaires and comorbidities assessments, sexually transmitted infections testing, and integration to care. This protocol exclusively addresses the phase I of the study. Once the phase I findings are finalized, the principal investigator will submit the phase II to the IRB of the Faculty of Medicine, Chulalongkorn University.

Official Title
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A Cross-sectional Descriptive Study Using Mixed Method (Qualitative and Quantitative) Data Collection

Conditions
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ChemSex Users for YMSM, ChemSex Users

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Group 1A: Current chemsex users Men who have sex with men Aged 16-35 years Able to communicate in Thai fluently Current chemsex users Provide informed consent Inclusion Criteria: Group 1B: Former chemsex users (discontinued ≥90 days) Men who have sex with men Aged 16-35 years Able to communicate in Thai fluently Former chemsex users (discontinued ≥90 days) Provide informed consent Exclusion Criteria: No exclusion criteria for all groups of participants

Ages Eligible for Study
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Minimum Age: 16 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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Male

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Group 1<br>A: Current chemsex users Men who have sex with men, Aged 16-35 years, Able to communicate in Thai fluently, Current chemsex users. B: Former chemsex users (discontinued ≥90 days) Men who have sex with men, Aged 16-35 years, Able to communicate in Thai fluently, Former chemsex users (discontinued ≥90 days). | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The study will be divided into two phases. The information on the procedures of the phase I single study visit is presented below. | Qualitative data collection The qualitative study component will use semi-structured individual in-depth interviews (IDIs) in Thai conducted in-person at the team community health clinic facilities. All participants will be included in the qualitative data collection - 40 YMSM, all 10 family members or peers of chemsex users, and all 10 clinic staff. Quantitative data collection Demographic information of all participants, the proportion of all eligible participants who agree to participate in the study, and the relationship status between Group 2 and Group 1 participants will be collected. | 12 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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ChemSex users