PROPHYLAXIS

Clinical trials for PROPHYLAXIS explained in plain language.

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Trials to join now! 3 Not yet recruiting 1 Completed 3 Terminated 1

Could a single pill after sex stop STIs in women?

Prevention Not yet recruiting

This trial tests whether taking a single dose of the antibiotic doxycycline within 24 hours of condomless sex can prevent bacterial sexually transmitted infections (STIs) like chlamydia, gonorrhea, and syphilis in women aged 18–35 at increased risk. Participants are randomly assi…

Matched conditions: PROPHYLAXIS

Phase: PHASE4 • Sponsor: Tulane University • Aim: Prevention

Last updated Jul 17, 2026 00:00 UTC

PROPHYLAXIS

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Could a single pill after sex stop STIs in women?