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A Study to Evaluate the Pharmacokinetics, Safety, Tolerability, and Antiviral Activity of Rilpivirine (TMC278) in Human Immunodeficiency Virus Infected Adolescents and Children Aged Greater Than or Equal to 6 Years

A Phase II, Open Label, Single Arm Trial to Evaluate the Pharmacokinetics,Safety, Tolerability, and Antiviral Activity of Rilpivirine (TMC278) in Antiretroviral Naive HIV-1 Infected Adolescents and Children Aged >= 6 to <18 Years

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00799864
Enrollment
54
Registered
2008-12-01
Start date
2011-01-31
Completion date
2022-08-31
Last updated
2024-06-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV-1

Keywords

HIV Infection, Antiretroviral, HIV-1, AIDS, Children, Rilpivirine (TMC278), Pediatric

Brief summary

The purpose of this study is to evaluate the pharmacokinetics, safety and antiviral activity of rilpivirine (TMC278) 25 milligram (mg) or adjusted dose once daily in combination with an investigator-selected background regimen containing 2 nucleoside/nucleotide reverse transcriptase inhibitors (N\[t\]RTIs) (zidovudine \[AZT\], abacavir \[ABC\], or tenofovir disoproxil fumarate \[TDF\] in combination with lamivudine \[3TC\] or emtricitabine \[FTC\] in antiretroviral (ARV) treatment-naïve adolescents and children aged greater than or equal to (\>=) 6 to less than (\<) 18 years.

Detailed description

This is a Phase II, open-label (all people involved know the identity of the assigned drug) and single arm study. The study will consist of a screening period of maximum 8 weeks, an initial treatment period of 48 weeks, a post week 48 treatment extension period of 4 years (Cohort 1 only), and a 4 week follow-up (cohort 2 only) period. Participants who withdraw from the trial on or before the Week 48 visit or subjects with ongoing (serious) adverse events (\[S\]AEs), laboratory abnormalities, or viral load increase at the last on-treatment visit in the extension, will be seen for a follow-up visit 4 weeks later. The initial 48-week treatment period will be structured into 2 age Cohorts; Cohort 1 (Aged greater than or equal to \[\>=\] 12 to less than \[\<\] 18 years) and Cohort 2 (Children Aged \>= 6 to \< 12 years). The trial is designed to evaluate the steady-state pharmacokinetic (PK) profile (based on intensive PK analysis) and the short-term safety and antiviral activity of rilpivirine (RPV). Participants will receive RPV 25 milligram (mg), or weight-adjusted dose orally once daily for 240 weeks when administered in combination with 2 nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs). The trial will also evaluate long-term (48 weeks and 240 weeks \[Cohort 1\]) safety, efficacy, and pharmacokinetics of rilpivirine in combination with the background regimen of 2 NRTIs. Patients safety will be monitored throughout the study and during the follow up visits.

Interventions

DRUGRilpivirine

Patients will receive rilpivirine (RPV) tablet 25 milligram dose or an adjusted dose orally once daily in Cohort 1 (adolescents aged \>=12 to \<18 years) up to 240 weeks. Patients will receive RPV weight-adjusted dose orally once daily in Cohort 2 (children aged \>=6 to \<12 years) or 25 mg once daily for up to 48 weeks.

DRUGZidovudine

Type=exact, form= appropriate pediatric formulation, unit=mg, route=oral. The patients may receive this selected NRTI together with another NRTI once daily for up to 48 weeks (Cohort 2) and 240 weeks (Cohort 1).

DRUGAbacavir

Type=exact, form=appropriate pediatric formulation, unit=mg, route=oral. The patients may receive this selected NRTI together with another NRTI once daily for up to 48 weeks (Cohort 2) and 240 weeks (Cohort 1).

DRUGTenofovir disoproxil fumarate

Type=exact, form=appropriate pediatric formulation, unit=mg, route=oral. The patients may receive this selected NRTI together with another NRTI once daily for 240 weeks (Cohort 1).

DRUGLamivudine

Type=exact, form=appropriate pediatric formulation, unit=mg, route=oral. The patients may receive this selected NRTI together with another NRTI once daily for up to 48 weeks (Cohort 2) and 240 weeks (Cohort 1).

DRUGEmtricitabine

Type=exact, form=appropriate pediatric formulation, unit=mg, route=oral. The patients may receive this selected NRTI together with another NRTI once daily for up to 48 weeks (Cohort 2) and 240 weeks (Cohort 1).

Sponsors

Janssen Sciences Ireland UC
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Has documented human immuno deficiency virus (HIV-1) infection * Patients who meet the following criteria; a) Cohort 1: Patients Aged greater than or equal to (\>=) 12 to less than (\<) 18 years, weight is \>= 32 kilogram (kg), b) Cohort 2; Aged \>= 6 to \< 12 years, weight is \>= 17 kg * Must have HIV-1 plasma viral load at screening greater than equal to 500 HIV-1 ribonucleic acid (RNA) copies/mL * Have not received treatment with a therapeutic HIV vaccine or an HIV drug with the exception of a single dose of nevirapine (NVP) (Cohort 1 and Cohort 2) or up to 6 weeks of zidovudine (AZT) use (Cohort 2 only) prior to screening to prevent mother-to-child transmission (MTCT) * In the judgment of the investigator, it is appropriate to initiate antiretroviral therapy (ARV) therapy based on a patient's medical condition and taking into account guidelines for the treatment of HIV-1 infection in children of this age group

Exclusion criteria

* Any previous use of ARVs with the exception of single dose NVP (Cohort 1 and Cohort 2) or up to 6 weeks of AZT (Cohort 2 only) to prevent MTCT * Plasma viral load at screening greater than 100,000 HIV-1 RNA copies/mL * Documented genotypic evidence of non-nucleoside reverse transcriptase inhibitor (NNRTI) resistance at screening or from historical data available in the source documents * Use of disallowed concomitant therapy from 4 weeks prior to the baseline visit * Patient has any currently active Acquired Immunodeficiency Syndrome (AIDS) defining illness * Patient has active tuberculosis and/or is being treated for tuberculosis at screening * Personal history of cardiac disease (including congenital heart disease), or symptomatic arrhythmias, with the exception of sinus arrhythmia; personal history of asymptomatic arrhythmias is excluded if the asymptomatic arrhythmia is clinically significant in the opinion of the investigator

Design outcomes

Primary

MeasureTime frameDescription
Cohorts 1 and 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Observed Plasma Concentration at Steady State (Cmax,ss)Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)Cmax,ss was the maximum observed plasma concentration of rilpivirine at steady state (steady state starting from Day 14).
Cohort 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Plasma Concentration at Steady State (Cmax,ss)Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)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.
Cohorts 1 and 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)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).
Cohort 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)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.

Secondary

MeasureTime frameDescription
Cohorts 1 and 2: Percentage of Participants With Treatment Adherence >95% Based on Drug AccountabilityCohort 1: From baseline (Day 1) up to Week 240; Cohort 2: From baseline (Day 1) up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10)Percentage of participants with treatment adherence \>95% based on drug accountability from baseline up to Week 240 for Cohort 1 and from baseline up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10) for cohort 2 were reported. Treatment adherence was defined as having a treatment adherence of greater than (\>) 95 percent (%) by pill count. Drug accountability included dispensation, receipt, and return, or if applicable, destruction of RPV documented by using the appropriate forms. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.
Cohorts 1 and 2: Number of Participants With Adverse Events (AEs)Cohort 1: From baseline (Day 1) up to Week 240; Cohort 2: From Baseline (Day 1) up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10)An AE is any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non-investigational) product and did not necessarily have a causal relationship with the treatment.
Cohorts 1 and 2: Change From Baseline in Cluster of Differentiation (CD4+) CellsBaseline (Day 1) and Week 48 for Cohorts 1 and 2; Week 240 for Cohort 1 aloneThe immunologic change was determined by changes in Cluster of CD4+ cell count using non-completer =failure imputation, that is discontinuation was imputed with baseline value resulting in change=0, other missing data using last observation carried forward (LOCF). Change from baseline in CD4+ cell count at Week 48 for Cohort 1 and 2; and at Week 240 for Cohort 1 only were assessed. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.
Cohorts 1 and 2: Percentage of Participants With Plasma Human Immunodeficiency Virus -1 (HIV-1) Ribonucleic Acid (RNA) Level Less Than (<) 50 Copies/mL by Time to Loss of Virologic Response (TLOVR) MethodAt Week 48 (for Cohorts 1 and 2) and at Week 240 (for Cohort 1 only)Percentage of participants with plasma HIV-1 RNA \<50 copies per milliliter (Copies/mL) assessed by TLOVR method was reported. TLOVR requires sustained HIV-1 RNA \< 50 copies/mL; confirmed HIV-1 RNA more than or equal to (\>=) 50 copies/mL is considered as non-response (rebound); participant was considered non-responder after permanent discontinuation. Responder is defined as the participant with confirmed plasma viral load \<50 copies/mL. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.
Cohorts 1 and 2: Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL by Food and Drug Administration (FDA) Snapshot ApproachAt Week 48 (for Cohorts 1 and 2) and at Week 240 (for Cohort 1 only)Percentage of participants with a HIV-1 RNA \<50 copies per mL were assessed using FDA snapshot approach which defines a participant's virologic response status using only the viral load at the predefined time point within a window of time, along with study drug discontinuation status. If HIV-1 RNA level is \< 50 copies per mL, it is considered as virologic success as per the snapshot approach. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.
Cohorts 1 and 2: Number of Participants With Post Baseline Genotype DataCohort 1: From baseline (Day 1) up to Week 240; Cohort 2: From baseline (Day 1) up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10)Number of participants with post baseline genotype (nucleoside analogue reverse transcriptase inhibitors \[NRTI\] and non-nucleoside reverse transcriptase inhibitors \[NNRTI\] resistance) data were reported. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.

Countries

India, Kenya, Romania, South Africa, Thailand, Uganda, Ukraine, United States

Participant flow

Recruitment details

A total of 54 antiretroviral-naïve human Immunodeficiency Virus-1 (HIV-1) infected adolescents (aged greater than or equal to \[\>=\] 12 to less than \[\<\] 18 years) and children (aged \>=6 to \<12 years) were enrolled and treated in Cohort 1 and Cohort 2, respectively.

Pre-assignment details

As of Protocol Amendment 10 (PA 10), for Cohort 2 children \>=6 to \<12 years of age, post Week 48 treatment extension period of 4 years was removed. Hence, the planned efficacy analysis were performed till Week 48 only whereas safety analysis was performed and reported up to Week 240.

Participants by arm

ArmCount
Cohort 1 Adolescents: Rilpivirine 25 mg
Adolescents (aged \>=12 to \<18 Years) received rilpivirine (RPV) tablet 25 mg orally QD up to 240 weeks in combination with an investigator-selected background regimen containing 2 nucleos(t)ide reverse transcriptase inhibitors (N\[t\]RTIs) (zidovudine \[AZT\], abacavir \[ABC\] or tenofovir disoproxil fumarate \[TDF\] in combination with lamivudine \[3TC\] or emtricitabine \[FTC\].
36
Cohort 2 Children (>=25 kg): Rilpivirine 25 mg
Children (aged \>=6 to \<12 years) with body weight \>=25 kg received rilpivirine 25 mg tablet orally QD from Day 1 up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10) in combination with an investigator-selected background regimen containing 2 N\[t\]RTIs: AZT, ABC, or TDF in combination with 3TC or FTC.
9
Cohort 2 Children (<25 kg): Rilpivirine 25 mg
Children (aged \>=6 to \<12 years) with body weight \<25 kg received rilpivirine 25 mg tablet orally QD from Day 1 up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10) in combination with an investigator-selected background regimen containing 2 N\[t\]RTIs: AZT, ABC, or TDF in combination with 3TC or FTC.
5
Cohort 2 Children (>=20 to <25 kg): Rilpivirine 15 mg
Children (aged \>=6 to \<12 years) with body weight \>=20 to \<25 kg received rilpivirine 15 mg (6 tablets of 2.5 mg) orally QD from Day 1 up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10) in combination with an investigator-selected background regimen containing 2 N\[t\]RTIs: AZT, ABC, or TDF in combination with 3TC or FTC.
2
Cohort 2 Children (<20 kg): Rilpivirine 12.5 mg
Children (aged \>=6 to \<12 years) with body weight \<20 kilograms (kg) received rilpivirine 12.5 mg (5 tablets of 2.5 mg) orally QD from Day 1 up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10) in combination with an investigator-selected background regimen containing 2 N\[t\]RTIs: AZT, ABC, or TDF in combination with 3TC or FTC.
2
Total54

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyOther21000
Overall StudyParticipant reached a virologic endpoint92200

Baseline characteristics

CharacteristicCohort 2 Children (<25 kg): Rilpivirine 25 mgCohort 2 Children (>=20 to <25 kg): Rilpivirine 15 mgCohort 2 Children (<20 kg): Rilpivirine 12.5 mgTotalCohort 1 Adolescents: Rilpivirine 25 mgCohort 2 Children (>=25 kg): Rilpivirine 25 mg
Age, Continuous9.2 years
STANDARD_DEVIATION 0.84
6.5 years
STANDARD_DEVIATION 0.71
6 years
STANDARD_DEVIATION 0
12.6 years
STANDARD_DEVIATION 3.29
14.6 years
STANDARD_DEVIATION 1.66
9.4 years
STANDARD_DEVIATION 1.67
Age, Customized
85 years and over
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Customized
Adolescents (12-17 years)
0 Participants0 Participants0 Participants36 Participants36 Participants0 Participants
Age, Customized
Adults (18-64 years)
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Customized
Children (2-11 years)
5 Participants2 Participants2 Participants18 Participants0 Participants9 Participants
Age, Customized
From 65 to 84 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants2 Participants2 Participants53 Participants36 Participants8 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants0 Participants6 Participants4 Participants1 Participants
Race (NIH/OMB)
Black or African American
4 Participants2 Participants2 Participants48 Participants32 Participants8 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Female
2 Participants1 Participants1 Participants27 Participants20 Participants3 Participants
Sex: Female, Male
Male
3 Participants1 Participants1 Participants27 Participants16 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 360 / 90 / 50 / 20 / 2
other
Total, other adverse events
35 / 368 / 95 / 52 / 22 / 2
serious
Total, serious adverse events
6 / 360 / 90 / 50 / 20 / 2

Outcome results

Primary

Cohort 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)

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.

Time frame: Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)

Population: Analysis population included all participants who had taken at least 1 dose of rilpivirine, regardless of their compliance with the protocol and adherence to the dosing regimen. Here, N (Overall number of participants analyzed) signifies participants evaluable for this outcome measure. For this OM, participant wise data was only reported because individual data analysis was planned when the 'N' was less than 3.

ArmMeasureGroupValue (NUMBER)
Cohort 1 Adolescents: Rilpivirine 25 mgCohort 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)Participant 11933 ng*hr/mL
Cohort 1 Adolescents: Rilpivirine 25 mgCohort 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)Participant 22877 ng*hr/mL
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohort 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)Participant 31710 ng*hr/mL
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohort 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)Participant 42958 ng*hr/mL
Primary

Cohort 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Plasma Concentration at Steady State (Cmax,ss)

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.

Time frame: Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)

Population: Analysis population included all participants who had taken at least 1 dose of rilpivirine, regardless of their compliance with the protocol and adherence to the dosing regimen. Here, N (Overall number of participants analyzed) signifies participants evaluable for this outcome measure. For this OM, participant wise data was only reported because individual data analysis was planned when the 'N' was less than 3.

ArmMeasureGroupValue (NUMBER)
Cohort 1 Adolescents: Rilpivirine 25 mgCohort 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Plasma Concentration at Steady State (Cmax,ss)Participant 1138 nanograms per milliliter (ng/mL)
Cohort 1 Adolescents: Rilpivirine 25 mgCohort 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Plasma Concentration at Steady State (Cmax,ss)Participant 2184 nanograms per milliliter (ng/mL)
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohort 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Plasma Concentration at Steady State (Cmax,ss)Participant 381.9 nanograms per milliliter (ng/mL)
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohort 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Plasma Concentration at Steady State (Cmax,ss)Participant 4156 nanograms per milliliter (ng/mL)
Primary

Cohorts 1 and 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)

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).

Time frame: Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)

Population: Population: participants who took at least 1 dose of RPV, regardless of their compliance with protocol \& adherence to dosing regimen. N (Overall number of participants analyzed) = participants evaluable for this OM. In this OM, summarized data for arms Cohort 2 Children (\>=20 to \<25 kg): Rilpivirine 15 mg and Cohort 2 Children (\<20 kg): Rilpivirine 12.5 mg, is not reported as plan was to prepare \& report participant wise data when N was \<3 (which is reported in OM 4).

ArmMeasureValue (MEAN)Dispersion
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)1872 nanograms*hour per milliliter (ng*hr/mL)Standard Deviation 717
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)2610 nanograms*hour per milliliter (ng*hr/mL)Standard Deviation 776
Cohort 2 Children (<25 kg): Rilpivirine 25 mgCohorts 1 and 2: Pharmacokinetics of Rilpivirine as Measured by Area Under the Plasma Concentration Curve at Steady State (AUC24, ss)3339 nanograms*hour per milliliter (ng*hr/mL)Standard Deviation 2233
Primary

Cohorts 1 and 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Observed Plasma Concentration at Steady State (Cmax,ss)

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

Time frame: Pre-dose, 0, 2, 4, 5, 6, 9, 12 and 24 hours post dose at steady-state (any time during Day 14 to Day 18)

Population: Population: participants who took at least 1 dose of RPV, regardless of their compliance with protocol \& adherence to dosing regimen. N (Overall number of participants analyzed) =participants evaluable for this outcome measure (OM). In this OM, summarized data for arms Cohort 2 Children (\>=20 to \<25 kg): Rilpivirine 15 mg and Cohort 2 Children (\<20 kg): Rilpivirine 12.5 mg, is not reported as plan was to prepare \& report participant wise data when N was \<3 (which is reported in OM 2).

ArmMeasureValue (MEAN)Dispersion
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Observed Plasma Concentration at Steady State (Cmax,ss)109 nanograms per milliliter (ng/mL)Standard Deviation 38
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Observed Plasma Concentration at Steady State (Cmax,ss)154 nanograms per milliliter (ng/mL)Standard Deviation 52.2
Cohort 2 Children (<25 kg): Rilpivirine 25 mgCohorts 1 and 2: Pharmacokinetics (PK) of Rilpivirine (TMC278) as Measured by Maximum Observed Plasma Concentration at Steady State (Cmax,ss)238 nanograms per milliliter (ng/mL)Standard Deviation 160
Secondary

Cohorts 1 and 2: Change From Baseline in Cluster of Differentiation (CD4+) Cells

The immunologic change was determined by changes in Cluster of CD4+ cell count using non-completer =failure imputation, that is discontinuation was imputed with baseline value resulting in change=0, other missing data using last observation carried forward (LOCF). Change from baseline in CD4+ cell count at Week 48 for Cohort 1 and 2; and at Week 240 for Cohort 1 only were assessed. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.

Time frame: Baseline (Day 1) and Week 48 for Cohorts 1 and 2; Week 240 for Cohort 1 alone

Population: Analysis population included all participants who had taken at least 1 dose of RPV, regardless of their compliance with the protocol and adherence to the dosing regimen. Here, 'n' (number analyzed) signifies the number of participants with available data at each specified timepoint. 0 participants in number analyzed field of cohort 2 indicated that Week 240 was not applicable to Cohort 2 as it was beyond the duration of Cohort 2 (i.e., Week 48).

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Change From Baseline in Cluster of Differentiation (CD4+) CellsWeek 48201.2 Cells per microliterStandard Error 32.87
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Change From Baseline in Cluster of Differentiation (CD4+) CellsWeek 240113.6 Cells per microliterStandard Error 26.72
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Change From Baseline in Cluster of Differentiation (CD4+) CellsWeek 48215.9 Cells per microliterStandard Error 62.42
Secondary

Cohorts 1 and 2: Number of Participants With Adverse Events (AEs)

An AE is any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non-investigational) product and did not necessarily have a causal relationship with the treatment.

Time frame: Cohort 1: From baseline (Day 1) up to Week 240; Cohort 2: From Baseline (Day 1) up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10)

Population: Analysis population included all participants who had taken at least 1 dose of RPV, regardless of their compliance with the protocol and adherence to the dosing regimen.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Number of Participants With Adverse Events (AEs)35 Participants
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Number of Participants With Adverse Events (AEs)8 Participants
Cohort 2 Children (<25 kg): Rilpivirine 25 mgCohorts 1 and 2: Number of Participants With Adverse Events (AEs)5 Participants
Cohort 2 Children (>=20 to <25 kg): Rilpivirine 15 mgCohorts 1 and 2: Number of Participants With Adverse Events (AEs)2 Participants
Cohort 2 Children (<20 kg): Rilpivirine 12.5 mgCohorts 1 and 2: Number of Participants With Adverse Events (AEs)2 Participants
Secondary

Cohorts 1 and 2: Number of Participants With Post Baseline Genotype Data

Number of participants with post baseline genotype (nucleoside analogue reverse transcriptase inhibitors \[NRTI\] and non-nucleoside reverse transcriptase inhibitors \[NNRTI\] resistance) data were reported. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.

Time frame: Cohort 1: From baseline (Day 1) up to Week 240; Cohort 2: From baseline (Day 1) up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10)

Population: Analysis population included all participants who had taken at least 1 dose of RPV, regardless of their compliance with the protocol and adherence to the dosing regimen. Here, N (Overall number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Number of Participants With Post Baseline Genotype DataNNRTI9 Participants
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Number of Participants With Post Baseline Genotype DataNRTI7 Participants
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Number of Participants With Post Baseline Genotype DataNNRTI5 Participants
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Number of Participants With Post Baseline Genotype DataNRTI4 Participants
Secondary

Cohorts 1 and 2: Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL by Food and Drug Administration (FDA) Snapshot Approach

Percentage of participants with a HIV-1 RNA \<50 copies per mL were assessed using FDA snapshot approach which defines a participant's virologic response status using only the viral load at the predefined time point within a window of time, along with study drug discontinuation status. If HIV-1 RNA level is \< 50 copies per mL, it is considered as virologic success as per the snapshot approach. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.

Time frame: At Week 48 (for Cohorts 1 and 2) and at Week 240 (for Cohort 1 only)

Population: Population:participants who took at least 1 dose of RPV, regardless of compliance with protocol \& adherence to dosing regimen. N(Overall number of participants analyzed)=participants evaluable for this OM. n(number analyzed)=number of participants with available data at specified timepoints. In Cohort 2, '0' in 'number analyzed' at Week 240=Week 240 was beyond duration of Cohort 2 (Week 48). '0' in 'number analyzed' of Cohort 1 Week 48=snapshot method was not applicable for Cohort 1 Week 48.

ArmMeasureGroupValue (NUMBER)
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL by Food and Drug Administration (FDA) Snapshot ApproachWeek 24053.1 Percentage of participants
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL by Food and Drug Administration (FDA) Snapshot ApproachWeek 4872.2 Percentage of participants
Secondary

Cohorts 1 and 2: Percentage of Participants With Plasma Human Immunodeficiency Virus -1 (HIV-1) Ribonucleic Acid (RNA) Level Less Than (<) 50 Copies/mL by Time to Loss of Virologic Response (TLOVR) Method

Percentage of participants with plasma HIV-1 RNA \<50 copies per milliliter (Copies/mL) assessed by TLOVR method was reported. TLOVR requires sustained HIV-1 RNA \< 50 copies/mL; confirmed HIV-1 RNA more than or equal to (\>=) 50 copies/mL is considered as non-response (rebound); participant was considered non-responder after permanent discontinuation. Responder is defined as the participant with confirmed plasma viral load \<50 copies/mL. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.

Time frame: At Week 48 (for Cohorts 1 and 2) and at Week 240 (for Cohort 1 only)

Population: Population: participants who took at least 1 dose of RPV, regardless of compliance with protocol \& adherence to dosing regimen. In Cohort 2, 0 in number analyzed field of Week 240 = Week 240 was not applicable as it was beyond duration of Cohort 2 (Week 48); 0 in number analyzed field of Week 48 =planned TLOVR method was not used for data analysis per PA 10 and thus no data was reported in this OM. 'n' (number analyzed) =number of participants with available data at specified timepoints.

ArmMeasureGroupValue (NUMBER)
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Percentage of Participants With Plasma Human Immunodeficiency Virus -1 (HIV-1) Ribonucleic Acid (RNA) Level Less Than (<) 50 Copies/mL by Time to Loss of Virologic Response (TLOVR) MethodWeek 4872.2 Percentage of participants
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Percentage of Participants With Plasma Human Immunodeficiency Virus -1 (HIV-1) Ribonucleic Acid (RNA) Level Less Than (<) 50 Copies/mL by Time to Loss of Virologic Response (TLOVR) MethodWeek 24043.8 Percentage of participants
Secondary

Cohorts 1 and 2: Percentage of Participants With Treatment Adherence >95% Based on Drug Accountability

Percentage of participants with treatment adherence \>95% based on drug accountability from baseline up to Week 240 for Cohort 1 and from baseline up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10) for cohort 2 were reported. Treatment adherence was defined as having a treatment adherence of greater than (\>) 95 percent (%) by pill count. Drug accountability included dispensation, receipt, and return, or if applicable, destruction of RPV documented by using the appropriate forms. As planned, combined data for cohort 2 was collected, analyzed and reported for this outcome measure.

Time frame: Cohort 1: From baseline (Day 1) up to Week 240; Cohort 2: From baseline (Day 1) up to 240 weeks (for participants recruited up to protocol amendment 9); up to 48 weeks (for participants recruited after implementation of protocol amendment 10)

Population: Analysis population included all participants who had taken at least 1 dose of RPV, regardless of their compliance with the protocol and adherence to the dosing regimen. For Cohort 2, 0 in number analyzed field indicated that no participants were available for analysis at Week 240 for Cohort 2 arm because timepoint Week 240 was not applicable to Cohort 2 as it was beyond the duration of Cohort 2 (i.e., Week 48).

ArmMeasureGroupValue (NUMBER)
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Percentage of Participants With Treatment Adherence >95% Based on Drug AccountabilityUp to 240 weeks77.8 Percentage of participants
Cohort 1 Adolescents: Rilpivirine 25 mgCohorts 1 and 2: Percentage of Participants With Treatment Adherence >95% Based on Drug AccountabilityUp to 48 weeks80.6 Percentage of participants
Cohort 2 Children (>=25 kg): Rilpivirine 25 mgCohorts 1 and 2: Percentage of Participants With Treatment Adherence >95% Based on Drug AccountabilityUp to 48 weeks77.8 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 11, 2026