Doxycycline for STI Prevention After Sex
Part of Infections clinical trials.
This study looks at how a single 200 mg dose of doxycycline works in the body to prevent bacterial sexually transmitted infections (like chlamydia, gonorrhea, and syphilis) after a risky sexual encounter. It is for men who have sex with men and are already on PrEP or living with HIV.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are an adult male
- You are a man who has sex with men and are on PrEP or living with HIV
- You have not taken doxycycline in the last 3 months
- You have had a bacterial STI in the past 12 months
- You had a risky sexual encounter within the last 24 to 72 hours
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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