Are you on or do plan on taking doxycycline to prevent STIs? 

What we know:

Doxycycline taken 24-72 hours after condomless sex (Doxy-PEP) is highly effective in reducing the risk of bacterial sexually transmitted diseases in men who have sex with men (MSM) and transgender women (TW). 

What we are trying to find out: 

DoxyPEP is now being rolled out in many locations. We want to understand how people are taking Doxy-PEP and how well it works during community-based use.

Click on one of our participating cities to contact the study team.