Doxycycline after sex to prevent STIs in women
Treatments studied
Part of Infections clinical trials.
This study tests whether taking a short course of the antibiotic doxycycline after sex can prevent bacterial STIs (like chlamydia, gonorrhea, and syphilis) in women at higher risk. It lasts one year and uses a smartphone app to track your health.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are female and between 18 and 35 years old.
- You have had vaginal sex without a condom with men in the past.
- You have either had a sexually transmitted infection (STI) in the past year or have had 2 or more sex partners in the past 6 months.
- You are willing to stay sexually active for the next year and use a smartphone app for the study.
- You are not pregnant, nursing, or trying to get pregnant, and you have no allergy to doxycycline or serious liver/kidney disease.
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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