HPTN 061

The purpose of this study was to determine the feasibility and acceptability of a multifaceted intervention among Black men who have sex with men (MSM), to prepare for a community-level randomized trial to test the efficacy of the intervention in reducing HIV incidence among Black MSM.

HPTN 064

The purpose of this study was to estimate the overall HIV type 1 (HIV-1) incidence rate in women at risk for HIV acquisition in the US, and to evaluate the feasibility of enrolling and following a cohort of these women.