Conditions: HIV-1 Infection
Keywords: HIV-1 HIV Treatment Experienced
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 482
Healthy volunteers: no

Brief summary:
The purpose of this randomized, open-label, multicenter, active-controlled Phase 3b study is to evaluate the noninferiority of the emtricitabine/rilpivirine/tenofovir disoproxil fumarate (FTC/RPV/TDF) single-tablet regimen (STR; also referred to as fixed-dose regimen or fixed-dose tablet) relative to regimens consisting of a ritonavir-boosted protease inhibitor (PI+RTV) and two nucleoside reverse transcriptase inhibitors (NRTIs) in virologically suppressed, HIV-1 infected subjects. The FTC/RPV/TDF STR could offer an attractive treatment option to patients who wish to simplify dosing by reducing pill burden or to improve the tolerability of their treatment.

Participants will be randomized into 2 groups, the FTC/RPV/TDF STR group, in which participants will switch treatment regimens at the start of the study, and the Stay on Baseline Regimen (SBR)/Delayed Switch group, in which participants will remain on their baseline regimen during the first 24 weeks of the study (designed to provide an initial active control), and may switch to the FTC/RPV/TDF STR at the Week 24 visit.

After the 48-week study analysis period, participants may continue to receive the FTC/RPV/TDF STR per protocol before switching to a commercially available source.

Detailed description:

Arms:
arm 1: Participants will switch from their existing treatment regimen to the emtricitabine (FTC)/rilpivirine (RPV)/tenofovir disoproxil fumarate (TDF) single-tablet regimen (STR) at the beginning of the study. arm 2: Participants will stay on baseline regimen (SBR; their existing treatment regimen of PI+RTV plus 2 NRTIs) at the beginning of the study through Week 24, and may switch to the FTC/RPV/TDF STR (Delayed Switch) at the Week 24 visit.

Interventions: intervention 1: FTC/RPV/TDF intervention 2: PI intervention 3: RTV intervention 4: NRTIs
Intervention descriptions: intervention 1: Emtricitabine (FTC) 200 mg/rilpivirine (RPV) 25 mg/tenofovir disoproxil fumarate (tenofovir DF; TDF) 300 mg single-tablet regimen (STR) administered orally with a meal once daily (QD) intervention 2: Protease inhibitors (PIs) included amprenavir, atazanavir, darunavir, fosamprenavir, Kaletra (lopinavir/ritonavir, coformulated), ritonavir, and saquinavir. PIs were administered according to prescribing information. intervention 3: Ritonavir (RTV) was administered according to prescribing information. intervention 4: NRTIs included abacavir, emtricitabine, Combivir (lamivudine/zidovudine, coformulated), Epzicom (abacavir/lamivudine, coformulated), lamivudine, stavudine, tenofovir DF, Truvada® (emtricitabine/tenofovir DF, coformulated), and zidovudine. NRTIs were administered according to prescribing information.

Protocol document: