Antibiotic after sex could stop STDs in High-Risk men

NCT ID NCT07397403

First seen Feb 17, 2026 · Last updated May 12, 2026 · Updated 5 times

Summary

This study tests whether taking the antibiotic doxycycline right after sex can prevent three common sexually transmitted infections (gonorrhea, chlamydia, and syphilis) in men who have sex with men (MSM) in Bangkok. About 400 participants will take the drug for 12 weeks and be monitored for infections. The goal is to find a simple, effective way to reduce STD rates in this high-risk group.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Bangrak STIs Center

    RECRUITING

    Sathorn, Bangkok, 10120, Thailand

    Contact Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

Conditions

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