Rilpivirine

Percentage of Participants with viral load (plasma HIV-1 RNA levels) less than 400 copies per mL at Week 48, obtained by the modified Food and Drug Administration (FDA) Snapshot method.

An AE can be any unfavorable and unintended sign (including an abnormal finding), symptom, or disease temporally associated with the use of a medicinal (investigational or non investigational) product, whether or not related to that medicinal (investigational or non investigational) product.

Number of participants with grade 3/4 events of rash irrespective of causality were assessed. A grade 3 rash defined as diffuse macular, maculopapular or morbilliform rash with vesicles or limited number of bullae or; rash with superficial ulcerations of mucous membranes limited to 1 anatomical site or; rash with at least one of the following: elevations in aspartate aminotransferase (AST)/alanine aminotransferase (ALT) more than 2\*baseline value and at least 5 times upper limit of normal; fever greater than (\>) 38 degree celsius or 100 degree fahrenheit; eosinophils \> 1000/millimeter (mm)\^3; serum sickness-like reaction. A grade 4 rash defined as the following: extensive or generalized bullous lesions or; Stevens-Johnsons Syndrome (SJS) or ulceration of mucous membrane involving 2 or more distinct mucosal sites or toxic epidermal necrolysis.

AUC(0-24h) was defined the area under the plasma concentration-time curve from time of administration up to 24 hours postdose of rilpivirine. As planned, data was not summarized for arms where number of participants analyzed was less than 3. Only individual participant data was available and reported in this outcome measure. Out of the 2 participants weighing \<20 kg who received rilpivirine 15 mg, 1 participant switched to rilpivirine 12.5 mg group after the first 4 weeks. This participant was counted in the \<20 kg rilpivirine 12.5 mg group for the pharmacokinetic assessments, hence the number of participants analyzed for this outcome measure in this arm are exceeding the participants that started this arm. As per protocol, the intensive PK samples were collected at anytime during Day 28 to Day 32 after first dose at the specified dose regimen.

AUC(0-24h) was defined the area under the plasma concentration-time curve from time of administration up to 24 hours postdose of rilpivirine. As per protocol, the intensive PK samples were collected at anytime during Day 28 to Day 32 after first dose at the specified dose regimen.

AUC(0-24h) was defined the area under the plasma concentration-time curve from time of administration up to 24 hours postdose of rilpivirine. As per protocol, the intensive PK samples were collected at anytime during Day 28 to Day 32 after first dose at the specified dose regimen.

AUC(0-24h) was defined the area under the plasma concentration-time curve from time of administration up to 24 hours postdose of rilpivirine. As planned, data was not summarized for arms where number of participants analyzed was less than 3. Only individual participant data was available and reported in this outcome measure. As per protocol, the intensive PK samples were collected at anytime during Day 28 to Day 32 after first dose at the specified dose regimen.

Evaluation of long term safety of the treatment with RPV with a background regimen. An AE is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product.

Number of participants with AEs leading to discontinuation will be reported. An AE is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product.

Number of participants with SAEs will be reported. An SAE is any adverse event (AE) that results in: death, persistent or significant disability/incapacity, requires inpatient hospitalization or prolongation of existing hospitalization, is life-threatening experience, is a congenital anomaly/birth defect and may jeopardize participant and/or may require medical or surgical intervention to prevent one of the outcomes listed above.

Number of participants with pregnancies will be reported.

Number of participants with grade 3/4 rash regardless of causality will be reported.

Cmax,ss was the maximum observed plasma concentration of rilpivirine at steady state (steady state starting from Day 14).

Cmax,ss was the maximum plasma concentration of rilpivirine at steady state (steady state starting from Day 14). In the below data table, the measure type "Number" corresponds to Cmax,ss concentration.

AUC24,ss was defined as the area under the plasma concentration versus time curve from time 0 to 24 hours post dosing of rilpivirine at steady state (steady state starting from Day 14).

AUC24,ss was defined as the area under the plasma concentration versus time curve from time 0 to 24 hours post dosing of rilpivirine at steady state (steady state starting from Day 14). In the below data table, the measure type "Number" corresponds to AUC24, ss concentration.

The Cmax is the maximum observed plasma concentration.

The AUC (0-d28) is the area under the plasma concentration-time curve from time of administration up to Day 28 postdose.

The AUC (0-last) is the area under the plasma concentration-time curve from time zero to last quantifiable time.

The AUC (0-infinity) is the area under the plasma concentration-time curve from time zero to infinite time, calculated as the sum of AUC(last) and C(last)/lambda(z); wherein AUC(last) is area under the plasma concentration-time curve from time zero to last quantifiable time, C(last) is the last observed quantifiable concentration, and lambda(z) is elimination rate constant.

The Cmax is the maximum observed plasma concentration.

The AUC (0-last) is the area under the plasma concentration-time curve from time zero to last quantifiable time.

The AUC (0-infinity) is the area under the plasma concentration-time curve from time zero to infinite time, calculated as the sum of AUC(last) and C(last)/lambda(z); wherein AUC(last) is area under the plasma concentration-time curve from time zero to last quantifiable time, C(last) is the last observed quantifiable concentration, and lambda(z) is elimination rate constant.

The AUC (0-d28) is the area under the plasma concentration-time curve for rilpivirine from time zero to day 28.

AUC extrapolated to infinity, calculated as AUClast + Clast/apparent terminal elimination rate constant, where Clast is the last measurable plasma analyte concentration; extrapolations of more than 20 percent of the total AUC are reported as approximations.

Apparent terminal elimination rate constant will be estimated by linear regression using the terminal log-linear phase of the logarithmic transformed conentration versus time data.

Pharmacokinetics of different dosing regimens of rilpivirine in combination with rifabutin, at steady-state will be evaluated.