Body Compartment PK for New HIV Pre-exposure Prophylaxis Modalities

The purpose of this study is to determine the ability of new anti-HIV agents to penetrate different body compartments in HIV negative men who have sex with men and transgender women. These new agents might be considered for pre-exposure prophylaxis regimens in the future. This study will include 90 healthy, HIV-negative men who have sex with men and transgender women who are not taking hormones aged 18-49 years. Participant must be willing to participate in 1 of the 3 study phases, be willing to take Truvada® (PrEP) or Genvoya®, and willing to undergo blood draws, urethral swabs, and rectal biopsy procedures.