- Descovy Demonstrated Non-inferior Efficacy and an Improved Bone and Renal Safety Profile Compared with Truvada® in People at Risk for Sexually Acquired HIV Infection in a Global Phase 3 Trial - FOSTER CITY, Calif.--(BUSINESS WIRE)--Oct. 3, 2019-- Gilead Sciences, Inc. (NASDAQ: GILD) today announced that the U.S. Food and Drug Administration (FDA) approved a pre-exposure prophylaxis (PrEP ....