A Study to Evaluate the Efficacy and Safety of (D/C/F/TAF) Once Daily Fixed Dose Combination (FDC) Regimen in Newly Diagnosed, Antiretroviral Treatment-naive Human Immunodeficiency Virus Type 1 (HIV-1) Infected Participants Receiving Care in a Test and Treat Model of Care

A Phase 3, Single-arm, Open-label Study to Evaluate the Efficacy and Safety of Darunavir/ Cobicistat/ Emtricitabine/ Tenofovir Alafenamide (D/C/F/TAF) Once Daily Fixed-dose Combination (FDC) Regimen in Newly Diagnosed, Antiretroviral Treatment-naïve Human Immunodeficiency Virus Type 1 (HIV-1) Infected Subjects Receiving Care in a Test and Treat Model of Care

The purpose of this study is to assess the efficacy of Darunavir/ Cobicistat/ Emtricitabine/ Tenofovir Alafenamide (D/C/F/TAF) fixed-dose combination (FDC) in a Test and Treat model of care in newly diagnosed human immunodeficiency virus (HIV-1)-infected, treatment-naive participants as determined by the proportion of virologic responders defined as having (HIV)-1 ribonucleic acid (RNA) lesser than 50 copies per milliliter (copies/mL) at Week 48.

Inclusion Criteria:

• Newly diagnosed with human immunodeficiency virus type 1 (HIV-1) evidenced by any of the following within 2 weeks of the screening/baseline visit: a) HIV Rapid Antibody positive; or b) HIV Immunoassay positive; or c) Positive p24 antigen and a HIV-1 ribonucleic acid (RNA) viral load greater than or equal to (>=) 5,000 copies per milliliter (copies/ mL); or d) Non-reactive HIV-1 antibody/antigen assays and HIV-1 RNA viral load (>=) 5,000 copies/mL. HIV-1 RNA viral load must be confirmed once within 1 week of initial HIV-1 RNA viral load test
• Antiretroviral treatment-naïve, except for the use of TRUVADA® for pre-exposure prophylaxis (PrEP)
• Must be able to swallow whole tablets
• A woman must agree not to donate eggs (ova, oocytes) for the purposes of assisted reproduction during the study and for 90 days after receiving the last dose of study drug
• A woman of childbearing potential must have a negative urine pregnancy test at screening

Exclusion Criteria:

• Known active cryptococcal infection, active toxoplasmic encephalitis, Mycobacterium tuberculosis infection, or another acquired immunodeficiency syndrome (AIDS) -defining condition that in the judgement of the investigator would increase the risk of morbidity or mortality
• Known history of clinically relevant hepatic disease or hepatitis that in the investigator's judgement is not compatible with Darunavir/ Cobicistat/ Emtricitabine/ Tenofovir Alafenamide (D/C/F/TAF FDC)
• Known history of cirrhosis as diagnosed based on local practices
• Known history of chronic ([>=] 3 months) renal insufficiency, defined as having an estimated glomerular filtration rate (eGFR) less than (<) 50 milliliter per minute (mL/min) according to the Modification of Diet in Renal Disease (MDRD) formula
• Pregnant, or breast-feeding, or planning to become pregnant while enrolled in this study or within 90 days after the last dose of study treatment