Effects of Ledipasvir/Sofosbuvir on the Pharmacokinetics and Renal Safety of Tenofovir Alafenamide (TAF)

"Participants who are already taking tenofovir disoproxil fumarate 300 mg (in the form of Viread or Truvada) in combination with either a ritonavir- or cobicistat-boosted protease inhibitor for HIV treatment will continue to take their prescribed treatment for 12 weeks after enrollment.~Other: Blood draws for tenofovir PK, renal function assessment"

"Participants will be switched from tenofovir disoproxil fumarate to tenofovir alafenamide 25 mg/emtricitabine 200 mg with a boosted protease inhibitor.~Other: Blood draws for tenofovir PK, renal function assessment"

"After taking tenofovir alafenamide/emtricitabine for 12 weeks, participants will then start taking ledipasvir 90 mg/sofosbuvir 400 mg (Harvoni) in combination with the tenofovir alafenamide 25 mg/emtricitabine 200 mg (Descovy) and a boosted protease inhibitor for 4 weeks. Subjects will then return to taking tenofovir alafenamide 25 mg/emtricitabine 200 mg (Descovy) and a boosted protease inhibitor for the final 12 weeks.~Other: Blood draws for tenofovir PK, renal function assessment"