Longitudinal assessment of young men who have sex with men involved in chemsex

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

Observational Institute of HIV Research and Innovation Foundation, Thailand · NCT05559658

This study is trying to learn about the experiences and health of young men who have sex with men and use drugs during sex to help improve care for them.

Quick facts

Study typeObservational
Enrollment60 (estimated)
Ages16 Years to 35 Years
SexMale
SponsorInstitute of HIV Research and Innovation Foundation, Thailand Academic / other
Locations1 site (Pathum wan, Bangkok)
Trial IDNCT05559658 on ClinicalTrials.gov

What this trial studies

This observational study consists of two phases aimed at understanding the experiences of young men who have sex with men (YMSM) involved in chemsex. Phase I is a cross-sectional descriptive study that utilizes mixed methods, primarily focusing on qualitative data collection to gather insights necessary for developing a larger follow-up study. Phase II will be a prospective cohort study that includes quantitative data collection, assessing various health aspects, sexually transmitted infections, and integration into care. The findings from Phase I will inform the design and implementation of Phase II.

Who should consider this trial

Good fit: Ideal candidates for this study are young men aged 16-35 who currently engage in chemsex or have discontinued use for at least 90 days.

Not a fit: Patients who do not identify as men who have sex with men or are outside the age range of 16-35 may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance understanding and support for YMSM involved in chemsex, leading to improved health interventions.

How similar studies have performed: While there may be studies focusing on chemsex, this specific longitudinal approach targeting YMSM is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Group 1A: Current chemsex users

1. Men who have sex with men
2. Aged 16-35 years
3. Able to communicate in Thai fluently
4. Current chemsex users
5. Provide informed consent

Inclusion Criteria:

Group 1B: Former chemsex users (discontinued ≥90 days)

1. Men who have sex with men
2. Aged 16-35 years
3. Able to communicate in Thai fluently
4. Former chemsex users (discontinued ≥90 days)
5. Provide informed consent

Exclusion Criteria:

No exclusion criteria for all groups of participants

Where this trial is running

Pathum wan, Bangkok

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions ChemSex Users for YMSMChemSex UsersChemSex users
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.