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 Fum

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.