Could one pill per month prevent HIV? The IMPOWER 22 study will find out.

Could one pill per month prevent HIV? The IMPOWER 22 study will find out.

This clinical research study is testing the safety and effectiveness of an investigational monthly PrEP pill (called islatravir) that may protect against HIV-1.

The study is open, but not currently enrolling (see: Merck Announces Clinical Holds on Studies Evaluating Islatravir for the Treatment and Prevention of HIV-1 Infection).

Learn more about the trial and find out who qualifies.

Learn more

Sign up! Find a trial location near you.

Learn more

Learn more about PrEP.

Learn more

“A monthly pill would empower me to lead an HIV-free life—imagine, only 12 pills in a year; Unbelievable!”

— Dr. Brenda Gati Mirembe, Senior Investigator, MH-JHU Care LTD, Uganda