Pill after sex could slash STIs in High-Risk groups
NCT ID NCT07500415
First seen Mar 31, 2026 · Last updated May 15, 2026 · Updated 7 times
Summary
This study tests whether taking the antibiotic doxycycline shortly after sex (called doxy-PEP) can prevent bacterial STIs like syphilis, gonorrhea, and chlamydia. It involves 200 sexual and gender minorities in Rio de Janeiro who are living with HIV or taking PrEP. Participants choose whether to use doxy-PEP and are followed for 48 weeks to see if it reduces new infections and is safe.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Instituto Nacional de Infectologia Evandro Chagas
RECRUITINGRio de Janeiro, Rio de Janeiro, 21040-360, Brazil
Contact Phone: •••-•••-•••• Email: •••••@•••••
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