Study of Oral Weekly GS-1720 and GS-4182 Compared With Biktarvy in People With HIV-1 Who Have Not Been Treated

The goal of this clinical study is to learn more about the experimental drugs lepetegravir (formerly GS-1720) (an oral, long-acting integrase strand transfer inhibitor (INSTI)) and lenacapavir pacfosacil (formerly GS-4182) (a prodrug of Lenacapavir (LEN)); to compare the combination of lepetegravir and lenacapavir pacfosacil with the current standard-of-care treatment bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) (Biktarvy), to see if the combination of lepetegravir and lenacapavir pacfosacil is safe and if it works for treating human immunodeficiency virus type 1 (HIV-1) infection in treatment-naive people with HIV-1 (PWH). This study has two phases: Phase 2 and Phase 3. The primary objectives of this study are: Phase 2: To evaluate the efficacy of oral weekly lepetegravir coadministered with lenacapavir pacfosacil versus continuing Biktarvy (BVY) in treatment-naive PWH at Week 24. Phase 3: To evaluate the efficacy of oral weekly lepetegravir/lenacapavir pacfosacil fixed-dose combination (FDC) tablet regimen versus continuing BVY in treatment-naive PWH at Week 48.