Hair, blood, and urine tests aim to solve STI prevention puzzle

NCT ID NCT06414408

First seen Apr 24, 2026 · Last updated May 19, 2026 · Updated 4 times

Summary

This study looks at why a medication called Doxy-PEP prevents bacterial STIs in some people but not in others. Researchers will measure drug levels in hair, blood, and urine from 48 volunteers who take the medication in different patterns. The goal is to develop better ways to track whether people are taking the medication as prescribed, which could help improve STI prevention strategies worldwide.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • University of California, San Francisco/San Francisco General Hospital

    RECRUITING

    San Francisco, California, 94110, United States

    Contact Email: •••••@•••••

Conditions

Explore the condition pages connected to this study.