Can a common antibiotic reduce inflammation and change gut bacteria in STI prevention?

NCT ID NCT07215325

First seen Nov 01, 2025 · Last updated May 14, 2026 · Updated 27 times

Summary

This study looks at how the antibiotic doxycycline affects inflammation and the natural bacteria in the body for 200 people with HIV or taking HIV prevention medication (PrEP). Researchers want to see if doxycycline, already used to prevent STIs, has extra effects on inflammation and gut bacteria. Participants must be male at birth and in good health.

Disclaimer Read more

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.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for SEXUALLY TRANSMITTED INFECTIONS (STI) are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Contacts and locations

Study contacts

  • Contact

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

Locations

  • Grady Health System (non-CRN)

    RECRUITING

    Atlanta, Georgia, 30322, United States

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

  • Hope Clinic

    RECRUITING

    Atlanta, Georgia, 30322, United States

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

Conditions

Explore the condition pages connected to this study.