Switch Study to Evaluate the Safety and Efficacy of Emtricitabine/Rilpivirine/Tenofovir Alafenamide (FTC/RPV/TAF) Fixed Dose Combination (FDC) in HIV-1 Positive Adults Who Are Virologically Suppressed on Emtricitabine/Rilpivirine/Tenofovir Disoproxil Fumarate (FTC/RPV/TDF)

A Phase 3b, Randomized, Double-Blind Switch Study to Evaluate the Safety and Efficacy of Emtricitabine/Rilpivirine/Tenofovir Alafenamide (FTC/RPV/TAF) Fixed Dose Combination (FDC) in HIV-1 Positive Subjects Who Are Virologically Suppressed on Emtricitabine/Rilpivirine/Tenofovir Disoproxil Fumarate (FTC/RPV/TDF)

The primary objective of this study is to evaluate the noninferiority of switching to emtricitabine/rilpivirine /tenofovir alafenamide (FTC/RPV/TAF) fixed-dose combination (FDC) as compared to continuing FTC/RPV/tenofovir disoproxil fumarate (TDF) FDC (FTC/RPV/TDF) in virologically suppressed HIV-1 infected participants.

Key Inclusion Criteria:

• The ability to understand and sign a written informed consent form, which must be obtained prior to initiation of study procedures
• Currently receiving FTC/RPV/TDF FDC for ≥ 6 consecutive months preceding the screening visit
• Documented plasma HIV-1 RNA levels < 50 copies/mL (or undetectable HIV-1 RNA level according to the local assay being used if the limit of detection is > 50 copies/mL) for ≥ 6 months preceding the screening visit. After reaching HIV-1 RNA < 50 copies/mL, single values of HIV-1 RNA ≥ 50 copies/mL followed by resuppression, are allowed
• Have no documented resistance to any of the study agents at any time in the past
• HIV-1 RNA < 50 copies/mL at the screening visit
• Hepatic transaminases (AST and ALT) ≤ 5 × upper limit of normal (ULN)
• Total bilirubin ≤ 1.5 mg/dL (≤ 26 μmol/L), or normal direct bilirubin
• Adequate hematologic function (absolute neutrophil count ≥ 1,000/mm^3 (1.00 GI/L); platelets ≥ 50,000/mm^3 (50 GI/L); hemoglobin ≥ 8.5 g/dL (85 g/L))
• Serum amylase ≤ 5 × ULN (individuals with serum amylase > 5 × ULN will remain eligible if serum lipase is ≤ 5 × ULN)
• Normal ECG (or if abnormal, determined by the Investigator to be not clinically significant)
• Adequate renal function: Estimated glomerular filtration rate ≥ 50 mL/min (1.17 mL/sec) according to the Cockcroft-Gault formula

Key Exclusion Criteria:

• Hepatitis B surface antigen (HBsAg) positive
• Hepatitis C antibody positive with detectable hepatitis C virus (HCV) RNA (individuals who have HCV antibody but no detectable HCV RNA are eligible to enroll)
• Individuals experiencing or with a medical history of decompensated cirrhosis (e.g., ascites, encephalopathy, etc.)
• Females who are breastfeeding
• Positive serum pregnancy test
• Current alcohol or substance use judged by the Investigator to potentially interfere with individual's study compliance
• A history of malignancy within the past 5 years (prior to screening) or ongoing malignancy other than cutaneous Kaposi's sarcoma (KS), basal cell carcinoma, or resected, non-invasive cutaneous squamous carcinoma. Individuals with cutaneous KS are eligible, but must not have received any systemic therapy for KS within 30 days of Baseline/Day 1 and must not be anticipated to require systemic therapy during the study
• Active, serious infections (other than HIV-1 infection) requiring parenteral antibiotic or antifungal therapy within 30 days prior to Baseline/Day 1
• Any other clinical condition or prior therapy that, in the opinion of the Investigator, would make the individual unsuitable for the study or unable to comply with dosing requirements
• Participation in any other clinical trial (including observational trials) without prior approval from the sponsor is prohibited while participating in this trial
• Individuals receiving ongoing therapy with any of the disallowed medications listed in the protocol, including drugs not to be used with FTC, RPV and/or TAF; or individuals with any known allergies to the excipients of FTC/RPV/TAF

Note: Other Inclusion/Exclusion criteria may apply.