Safety and Efficacy of Switching to a FDC of B/F/TAF From E/C/F/TAF, E/C/F/TDF, or ATV+RTV+FTC/TDF in Virologically Suppressed HIV-1 Infected Women

Key Inclusion Criteria Medically stable HIV-1 infected women who meet the following criteria: * Completion of the Week 48 open-label extension (OLE) visit or any post Week 48 OLE visits in Gilead-sponsored study GS-US-236-0128, or Completion of the Week 96 visit or any post Week 96 visits in Gilead-sponsored study GS-US-292-0109 or completion of the Week 144 visit or any post Week 144 visits in Gilead sponsored studies GS-US-292-0104 or GS-US-292-0111. * Currently on a stable antiretroviral regimen consisting of E/C/F/TAF, E/C/F/TDF, or ATV+RTV+FTC/TDF continuously for ≥ 12 consecutive weeks preceding the Screening visit * Documented plasma HIV-1 RNA levels \< 50 copies/mL for ≥ 12 weeks preceding the Screening visit. After reaching HIV-1 RNA \< 50 copies/mL, single values of HIV-1 RNA ≥ 50 copies/mL followed by re-suppression to \< 50 copies/mL is allowed * HIV-1 RNA \<50 copies/mL at screening * Estimated glomerular filtration rate (eGFR) ≥ 50 mL/min (≥ 0.83 mL/sec) according to the Cockcroft-Gault formula at the Screening visit Note: Other protocol defined Inclusion/Exclusion criteria may apply.