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TMC125-TiDP2-C238: An Exploratory Pharmacokinetics, Safety and Anti-HIV Activity Study of Etravirine (ETR) When Given With Boosted Atazanavir (ATV/Rtv) at Two Different Doses and 1 Nucleoside Reverse Transcriptase Inhibitor (NRTI) in Treatment Experienced HIV Patients

TMC125-TiDP2-C238: A Randomized, Exploratory, Open-label 48-week Trial to Investigate the Pharmacokinetics, Safety, Tolerability and Antiviral Activity of Etravirine (ETR) in Combination With Ritonavir-boosted Atazanavir (ATV/Rtv) and 1 NRTI in Treatment-experienced HIV-1 Infected Subjects

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00896051
Enrollment
50
Registered
2009-05-11
Start date
2009-08-31
Completion date
2012-04-30
Last updated
2013-09-30

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

Conditions

Acquired Immunodeficiency Syndrome, HIV Infections

Keywords

HIV Infections, Acquired Immunodeficiency Syndrome, TMC125-TiDP2-C238, TMC125-C238, Etravirine, Intelence, HIV, HIV-1, Pharmacokinetics

Brief summary

The purpose of this study is to determine the pharmacokinetics (how the body absorbs, distributes, metabolizes and eliminates a drug) (PK) of ETR when given with ATV/rtv and 1 NRTI in treatment experienced HIV-1 infected patients. In addition, safety, tolerability and anti-HIV effect of this regimen will also be studied. A total of 46 patients will be enrolled.

Detailed description

This is a randomized (study drug assigned by chance), exploratory, open-label (all involved people know the identity of the intervention) trial to evaluate the pharmacokinetics (PK), safety, tolerability and anti-HIV (anti Human Immunodeficiency Virus) activity of etravirine (ETR ) when given with atazanavir/ritonavir (ATV/rtv) and 1 nucleoside reverse transcriptase inhibitor (NRTI) in 46 treatment experienced HIV-1 infected patients. The trial will consist of : 4 weeks of Screening Period, 2 weeks Pre-Treatment Phase, 48-week Treatment Period, and a Final Visit followed by a 4-week Follow-up Period (only for patients not continuing treatment with ETR in another trial or program). Safety evaluations (AE reporting, labs, vital signs, etc.) will be monitored at each study visit. A PK substudy (included in the protocol, with optional participation) with tenofovir (TDF) added to the antiretroviral regimen for 7 days will be conducted in patients with \> 24 weeks of treatment with suppressed HIV-1 viral load. In Pre-Treatment Phase, all patients will receive ATV/rtv 300/100 mg once daily to be taken following a meal each morning + 2 NRTIs (dose as specified in the labels) for 14 days. In Treatment Phase, patients will receive ETR 200 mg twice daily in addition to ATV/rtv (300/100 mg or 400/100 mg) once daily with meals + 1 investigator-selected NRTI for 48 weeks. In substudy TDF 300 mg once daily will be added to the treatment regimen x 7 days.

Interventions

DRUGAtazanavir (ATV) 300 mg

Atazanavir (ATV) 300 mg taken by mouth following a meal each morning for 2 weeks during the Pre-Treatment Period and for 48 weeks during the Treatment Period. If participating in the optional substudy, participants will take ATV 300 mg by mouth following a meal each morning on Substudy Days -1 to 7.

DRUGAtazanavir (ATV) 400 mg

Atazanavir (ATV) 400 mg taken by mouth following a meal each morning for 2 weeks during the Pre-Treatment Period and for 48 weeks during the Treatment Period. If participating in the optional substudy, participants will take ATV 400 mg by mouth following a meal each morning on Substudy Days -1 to 7.

DRUGRitonavir (rtv) 100 mg

Ritonavir (rtv) 100 mg taken by mouth following a meal each morning for 2 weeks during the Pre-Treatment Period and for 48 weeks during the Treatment Period. If participating in the optional substudy, participants will take rtv 100 mg by mouth following a meal each morning on Substudy Days -1 to 7.

DRUGNucleo(side)/(tide) reverse transcriptase inhibitors (NRTIs)

2 investigator-selected NRTIs taken as specified in the individual product labels for 2 weeks during the Pre-Treatment Period followed by 1 investigator-selected NRTI (of the 2 NRTIs in the Pre-Treatment Phase) taken as specified in the individual product label for 48 weeks during the Treatment Period. If participating in the optional substudy, participants will take 1 investigator-selected NRTI (of the 2 NRTIs in the Pre-Treatment Phase) mg taken as specified in the individual product label during the Substudy.

DRUGEtravirine (ETR) 200 mg

Etravirine (ETR) 200 mg taken twice daily as two 100-mg tablets following a meal (morning and evening) for at least the first two weeks of the 48-week Treatment Period. If participating in the optional substudy, participants will take ETR 200 mg twice daily as two 100-mg tablets following a meal each morning and evening on Substudy Days -1 to 7.

Tenofovir disoproxil fumarate (TDF) 300 mg taken by mouth following a meal each morning on Substudy Days 1 to 7.

Sponsors

Janssen R&D Ireland
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

\- Documented HIV-1 infection * Failing on a stable ART (anti retroviral therapy) with HIV-1 plasma viral load above 500 HIV-1 RNA copies/ml * Presence of at least 1 documented NNRTI mutation * Demonstrated sensitivity to ATV, ETR and at least one of the selected NRTIs based on the resistance test at screening * General medical condition, in the investigator's opinion, does not interfere with the assessments and completion of the trial * Substudy: patients who have been treated in C238 for more than 24 weeks and are currently suppressed (defined as patients with at least 2 most recent and consecutive viral loads less than 50 cp/mL) will be considered eligible for the substudy

Exclusion criteria

* Primary HIV-1 infection * Previously documented HIV-2 infection * Previously failed 2 or more HIV PI-containing regimens * Previous diagnosis of hereditary hyperbilirubinemia (eg. Gilbert's syndrome, Crigler-Najjar syndrome). Grade 3 or 4 toxicities (according to DAIDS grading) * Acute and chronic viral hepatitis * Receipt of an investigational drug or investigational vaccine within 30 days prior to the trial drug administration * Pregnant or breastfeeding female

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Undetectable Plasma Viral Load (VL) Values (<50 Copies/mL) at Week 48Week 48The table below shows the percentage of participants wih undetectable plasma viral load (VL) values (\<50 copies/mL) at Week 48 using the Non-Completing = Failure (NC=F) imputation method (ie, participants who discontinued early were counted as nonresponders by having their VL values after discontinuation imputed with their baseline value, thus resulting in a 0 change).
Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for AUC24hr)Day -1 (Reference); Week 2 (Test)The table below shows pharmacokinetic (PK) results of atazanavir (ATV) when administered as ATV/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).
Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)Day -1 (Reference); Week 2 (Test)The table below shows the pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), and maximum plasma concentration (Cmax).
Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for AUC24hr)Day -1 (Reference); Week 2 (Test)The table below shows the pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).
Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)Day -1 (Reference); Week 2 (Test)The table below shows pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), maximum plasma concentration (Cmax), and area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).
Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for AUC24hr)Day -1 (Reference); Week 2 (Test)The table below shows pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).
Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)Week 2The table below shows pharmacokinetic (PK) results of ETR in the current study expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin) and maximum plasma concentration (Cmax).
Pharmacokinetic Results of Etravirine (ETR) (Results for AUC12hr)Week 2The table below shows pharmacokinetic (PK) results of ETR in the current study expressed as the area under the plasma concentration-time curve from time of intake to 12 hours after dosing (AUC12hr).
Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)Day -1 (Pretreatment); Week 2 (Test)The table below shows pharmacokinetic (PK) results of atazanavir (ATZ) when administered as ATV/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), and maximum plasma concentration (Cmax).
Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for AUC24hr)Day -1 (Pretreatment); Week 2 (Test)The table below shows pharmacokinetic (PK) results of atazanavir (ATZ) when administered as ATV/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).
Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)Day -1 (Reference); Week 2 (Test)The table below shows pharmacokinetic (PK) results of atazanavir (ATV) when administered as ATV/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), maximum plasma concentration (Cmax), and area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).

Secondary

MeasureTime frameDescription
The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation MethodBaseline, Weeks 4, 12, 24, 48The table below shows the percentage of participants per time point with a virologic response defined as having a plasma viral load (VL) \<50 copies/mL, and with plasma VL \<400 copies/mL using the Non-Completing = Failure (NC=F) imputation method (ie, participants who discontinued early were counted as nonresponders by having their VL values after discontinuation imputed with their Baseline value, thus resulting in a 0 change).
The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation MethodBaseline, Weeks 4, 12, 24, 48The table below shows the percentage of participants with a virologic response defined as a viral load \<50 Copies/mL and \<400 Copies/mL per time point calculated using the time to loss of virologic response (TLOVR) imputation method.
The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis MethodWeek 48The table below provides the results from the snapshot analysis method that includes the percentage of participants with virologic response (\<50 copies/mL), the percentage of participants who were virologic failures (VF) (\>50 copies/mL, discontinued prior to time X for reasons of VF or for other reasons, except for VF or adverse event, with a last viral load \>50 copies/mL), and the percentage of participants with no viral load (VL) data available at Week 48.
Change From Pre-Baseline in Log10 Viral Load Over TimePre-Baseline, Baseline, Weeks 4, 12, 24, 48The table below shows the mean change from prebaseline over time in log10 (Copies/mL) plasma viral load using the Non-Completing = Failure (NC=F) imputation method.
Time to Confirmed Virologic ResponsePrebaseline to Week 48The table below provides the time in days it took participants to reach a confirmed virologic response defined as a plasma viral load (VL) \<50 copies/mL, and plasma VL \<400 copies/mL analyzed according to the Time to Loss of Virologic Response (TLOVR) imputation method.
Time to Virologic FailurePrebaseline to Week 48The table below shows the number of days to virologic failure defined as a plasma viral load (VL) \> 50 copies/mL for participants who had been virologic responders (ie, having a plasma VL \<50, and \<400 copies/mL according to the time to loss of virologic response \[TLOVR\] imputation method). Time to virologic failure was the time to subsequent loss of virologic response, and the time was calculated from Prebaseline (Week -2). Participants who never achieved a virologic response were defined as nonresponders and counted as virologic failures on Day 1.
Change From Prebaseline in CD4+ Cell Count Over TimePrebaseline, Baseline, Weeks 4, 12, 24, 48The table below shows the mean change from prebaseline over time in CD4+ cell count using the Non-Completing = Failure (NC=F) imputation method.

Countries

Argentina, France, South Africa, Thailand, United States

Participant flow

Recruitment details

Etravirine coadministered with 2 doses of atazanavir/low-dose ritonavir each combined with 1 nucleoside reverse transcriptase inhibitor was evaluated in human immunodeficiency virus - type 1 infected participants. The study was conducted between 25 June 2009 and 10 April 2012 and participants were recruited by 17 investigators in 4 countries.

Pre-assignment details

Fifty (50) participants were enrolled in the study and received treatment with study drug during a 2-week Pre-treatment Period (Week -2 to Day -1) and a 48-week Treatment Period (Day 1 to Week 48). Efficacy data are reported for the 48-week Treatment Period.

Participants by arm

ArmCount
ATV/Rtv 300/100 mg (Treatment A)
Treatment-experienced human immunodeficiency virus - type 1 (HIV-1) infected participants took by mouth atazanavir (ATV)/low-dose ritonavir (rtv) 300/100 mg once daily + 2 nucleoside reverse transcriptase inhibitors (NRTIs) for pre-treatment for 2 weeks followed by ATV/rtv 300/100 mg once daily + etravirine (ETR) 200 mg twice daily + 1 NRTI for 48 weeks.
25
ATV/Rtv 400/100 mg (Treatment B)
Treatment-experienced human immunodeficiency virus - type 1 (HIV-1) infected participants took by mouth atazanavir (ATV)/low-dose ritonavir (rtv) 300/100 mg once daily + 2 nucleoside reverse transcriptase inhibitors (NRTIs) pretreatment for 2 weeks followed by ATV/rtv 400/100 mg once daily + etravirine (ETR) 200 mg twice daily + 1 NRTI for 48 weeks.
25
Total50

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event21
Overall StudyLost to Follow-up32
Overall StudyOther11
Overall StudySubject noncompliant13
Overall StudyWithdrawal by Subject32

Baseline characteristics

CharacteristicATV/Rtv 300/100 mg (Treatment A)ATV/Rtv 400/100 mg (Treatment B)Total
Age, Categorical
<=18 years
0 Participants1 Participants1 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
25 Participants24 Participants49 Participants
Age Continuous41.2 years
STANDARD_DEVIATION 10.44
39.8 years
STANDARD_DEVIATION 9.37
40.5 years
STANDARD_DEVIATION 9.85
Sex: Female, Male
Female
12 Participants13 Participants25 Participants
Sex: Female, Male
Male
13 Participants12 Participants25 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
21 / 2515 / 25
serious
Total, serious adverse events
4 / 252 / 25

Outcome results

Primary

Percentage of Participants With Undetectable Plasma Viral Load (VL) Values (<50 Copies/mL) at Week 48

The table below shows the percentage of participants wih undetectable plasma viral load (VL) values (\<50 copies/mL) at Week 48 using the Non-Completing = Failure (NC=F) imputation method (ie, participants who discontinued early were counted as nonresponders by having their VL values after discontinuation imputed with their baseline value, thus resulting in a 0 change).

Time frame: Week 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureValue (NUMBER)
ATV/Rtv 300/100 mg (Reference)Percentage of Participants With Undetectable Plasma Viral Load (VL) Values (<50 Copies/mL) at Week 4850.0 Percentage of Participants
ATV/Rtv 300/100 mg (Test)Percentage of Participants With Undetectable Plasma Viral Load (VL) Values (<50 Copies/mL) at Week 4845.5 Percentage of Participants
Primary

Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for AUC24hr)

The table below shows pharmacokinetic (PK) results of atazanavir (ATZ) when administered as ATV/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).

Time frame: Day -1 (Pretreatment); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the PK parameter reported.

ArmMeasureValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for AUC24hr)60030 ng.h/mLStandard Deviation 39690
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for AUC24hr)55070 ng.h/mLStandard Deviation 21860
Comparison: Parameter: area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr)90% CI: [0.76, 1.22]Linear mixed effects model
Primary

Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)

The table below shows pharmacokinetic (PK) results of atazanavir (ATZ) when administered as ATV/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), and maximum plasma concentration (Cmax).

Time frame: Day -1 (Pretreatment); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the PK parameter reported.

ArmMeasureGroupValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=21; Test, n=19)1339 ng/mlStandard Deviation 1728
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml (Reference, n=20; Test, n=18)1104 ng/mlStandard Deviation 1511
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=20; Test, n=19)5652 ng/mlStandard Deviation 2735
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=21; Test, n=19)845.7 ng/mlStandard Deviation 703.3
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml (Reference, n=20; Test, n=18)758.6 ng/mlStandard Deviation 610.5
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment A: ATV/Low-Dose Ritonavir (Rtv) 300/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=20; Test, n=19)5232 ng/mlStandard Deviation 2166
Comparison: Parameter: minimum plasma concentration (Cmin)90% CI: [0.55, 1.22]Linear mixed effects model
Comparison: Parameter: maximum plasma concentration (Cmax)90% CI: [0.8, 1.16]Linear mixed effects model
Primary

Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for AUC24hr)

The table below shows pharmacokinetic (PK) results of atazanavir (ATV) when administered as ATV/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).

Time frame: Day -1 (Reference); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the parameter reported.

ArmMeasureValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for AUC24hr)74210 ng.h/mLStandard Deviation 55480
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for AUC24hr)72220 ng.h/mLStandard Deviation 34600
Comparison: Parameter: area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr)90% CI: [0.81, 1.21]Llinear mixed effects model
Primary

Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)

The table below shows pharmacokinetic (PK) results of atazanavir (ATV) when administered as ATV/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), maximum plasma concentration (Cmax), and area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).

Time frame: Day -1 (Reference); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=22; Test, n=20)1898 ng/mlStandard Deviation 2298
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml (Reference, n=21;Test, n=18)1671 ng/mlStandard Deviation 2310
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=22; Test, n=20)6419 ng/mlStandard Deviation 2853
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=22; Test, n=20)1545 ng/mlStandard Deviation 1296
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml (Reference, n=21;Test, n=18)1107 ng/mlStandard Deviation 866.8
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Atazanavir (ATV): Treatment B: ATV/Low-Dose Ritonavir (Rtv) 400/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=22; Test, n=20)6950 ng/mlStandard Deviation 2693
Comparison: Parameter: Minimum plasma concentration (Cmin)90% CI: [0.63, 1.33]Linear mixed effects model
Comparison: Parameter: maximum plasma concentration (Cmax)90% CI: [0.86, 1.27]Linear mixed effects model
Primary

Pharmacokinetic Results of Etravirine (ETR) (Results for AUC12hr)

The table below shows pharmacokinetic (PK) results of ETR in the current study expressed as the area under the plasma concentration-time curve from time of intake to 12 hours after dosing (AUC12hr).

Time frame: Week 2

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the parameter reported.

ArmMeasureValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Etravirine (ETR) (Results for AUC12hr)7629 ng.h/mLStandard Deviation 4213
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Etravirine (ETR) (Results for AUC12hr)5171 ng.h/mLStandard Deviation 2695
Primary

Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)

The table below shows pharmacokinetic (PK) results of ETR in the current study expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin) and maximum plasma concentration (Cmax).

Time frame: Week 2

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the parameter reported.

ArmMeasureGroupValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)C0h (Treatment B, n=19)422.2 ng/mlStandard Deviation 327.9
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)Cmin (Treatment A, n=16; Treatment B, n=18)425.1 ng/mlStandard Deviation 328.1
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)Cmax (Treatment A, n=18; Treatment B, n=18)773.0 ng/mlStandard Deviation 360.5
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)C0h (Treatment B, n=19)316.6 ng/mlStandard Deviation 215.4
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)Cmin (Treatment A, n=16; Treatment B, n=18)286.5 ng/mlStandard Deviation 198
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Etravirine (ETR) (Results for C0h, Cmin, and Cmax)Cmax (Treatment A, n=18; Treatment B, n=18)628.7 ng/mlStandard Deviation 294
Primary

Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for AUC24hr)

The table below shows the pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).

Time frame: Day -1 (Reference); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the parameter reported.

ArmMeasureValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for AUC24hr)12560 ng.h/mlStandard Deviation 6643
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for AUC24hr)11120 ng.h/mlStandard Deviation 6658
Primary

Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)

The table below shows the pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/rtv 300/100 mg pretreatment (Reference) and at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), and maximum plasma concentration (Cmax).

Time frame: Day -1 (Reference); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the parameter reported.

ArmMeasureGroupValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=21; Test, n=19)143.4 ng/mlStandard Deviation 269.8
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml (Reference, n=20; Test, n=18)60.42 ng/mlStandard Deviation 73.17
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=20; Test, n=19)1834 ng/mlStandard Deviation 1009
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=21; Test, n=19)102.5 ng/mlStandard Deviation 157.2
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml (Reference, n=20; Test, n=18)43.97 ng/mlStandard Deviation 36.29
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment A: Atazanavir (ATV)/Rtv 300/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=20; Test, n=19)1740 ng/mlStandard Deviation 1149
Primary

Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for AUC24hr)

The table below shows pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).

Time frame: Day -1 (Reference); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the parameter reported.

ArmMeasureValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for AUC24hr)13880 ng.h/mlStandard Deviation 8198
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for AUC24hr)13660 ng.h/mlStandard Deviation 6778
Primary

Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)

The table below shows pharmacokinetic (PK) results of low-dose ritonavir (rtv) when administered as atazanavir (ATV)/ritonavir (rtv) 300/100 mg pretreatment (Reference) and when administered as ATV/rtv 400/100 mg at Week 2 after treatment (Test). Results are expressed as the predose plasma concentration (C0h), minimum plasma concentration (Cmin), maximum plasma concentration (Cmax), and area under the plasma concentration-time curve from time of intake to 24 hours after dosing (AUC24hr).

Time frame: Day -1 (Reference); Week 2 (Test)

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population) for which data was available for the parameter reported.

ArmMeasureGroupValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=22; Test, n=20)109.2 ng/mlStandard Deviation 94.5
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml64.70 ng/mlStandard Deviation 51.8
ATV/Rtv 300/100 mg (Reference)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=22)1882 ng/mlStandard Deviation 1026
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)C0h, ng/ml (Reference, n=22; Test, n=20)163.4 ng/mlStandard Deviation 240.2
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)Cmin, ng/ml75.68 ng/mlStandard Deviation 69.98
ATV/Rtv 300/100 mg (Test)Pharmacokinetic Results of Low-Dose Ritonavir (Rtv): Treatment B: Atazanavir (ATV)/Rtv 400/100 mg (Results for C0h, Cmin, and Cmax)Cmax, ng/ml (Reference, n=22)1847 ng/mlStandard Deviation 859.9
Secondary

Change From Prebaseline in CD4+ Cell Count Over Time

The table below shows the mean change from prebaseline over time in CD4+ cell count using the Non-Completing = Failure (NC=F) imputation method.

Time frame: Prebaseline, Baseline, Weeks 4, 12, 24, 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 455 CD4+ cell countStandard Error 15.4
ATV/Rtv 300/100 mg (Reference)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 2454 CD4+ cell countStandard Error 22
ATV/Rtv 300/100 mg (Reference)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 1231 CD4+ cell countStandard Error 15
ATV/Rtv 300/100 mg (Reference)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 48105 CD4+ cell countStandard Error 31.1
ATV/Rtv 300/100 mg (Reference)Change From Prebaseline in CD4+ Cell Count Over TimeBaseline16 CD4+ cell countStandard Error 11.8
ATV/Rtv 300/100 mg (Test)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 48132 CD4+ cell countStandard Error 32.6
ATV/Rtv 300/100 mg (Test)Change From Prebaseline in CD4+ Cell Count Over TimeBaseline8 CD4+ cell countStandard Error 18
ATV/Rtv 300/100 mg (Test)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 446 CD4+ cell countStandard Error 27.4
ATV/Rtv 300/100 mg (Test)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 1272 CD4+ cell countStandard Error 23.5
ATV/Rtv 300/100 mg (Test)Change From Prebaseline in CD4+ Cell Count Over TimeWeek 2483 CD4+ cell countStandard Error 23.2
Secondary

Change From Pre-Baseline in Log10 Viral Load Over Time

The table below shows the mean change from prebaseline over time in log10 (Copies/mL) plasma viral load using the Non-Completing = Failure (NC=F) imputation method.

Time frame: Pre-Baseline, Baseline, Weeks 4, 12, 24, 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (MEAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Change From Pre-Baseline in Log10 Viral Load Over TimeBaseline-1.4 log10 (Copies/mL)Standard Error 0.14
ATV/Rtv 300/100 mg (Reference)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 4-1.9 log10 (Copies/mL)Standard Error 0.18
ATV/Rtv 300/100 mg (Reference)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 12-1.7 log10 (Copies/mL)Standard Error 0.26
ATV/Rtv 300/100 mg (Reference)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 24-1.8 log10 (Copies/mL)Standard Error 0.24
ATV/Rtv 300/100 mg (Reference)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 48-1.4 log10 (Copies/mL)Standard Error 0.24
ATV/Rtv 300/100 mg (Test)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 48-1.4 log10 (Copies/mL)Standard Error 0.29
ATV/Rtv 300/100 mg (Test)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 24-1.8 log10 (Copies/mL)Standard Error 0.27
ATV/Rtv 300/100 mg (Test)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 4-1.8 log10 (Copies/mL)Standard Error 0.15
ATV/Rtv 300/100 mg (Test)Change From Pre-Baseline in Log10 Viral Load Over TimeBaseline-1.4 log10 (Copies/mL)Standard Error 0.18
ATV/Rtv 300/100 mg (Test)Change From Pre-Baseline in Log10 Viral Load Over TimeWeek 12-2.0 log10 (Copies/mL)Standard Error 0.23
Secondary

The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis Method

The table below provides the results from the snapshot analysis method that includes the percentage of participants with virologic response (\<50 copies/mL), the percentage of participants who were virologic failures (VF) (\>50 copies/mL, discontinued prior to time X for reasons of VF or for other reasons, except for VF or adverse event, with a last viral load \>50 copies/mL), and the percentage of participants with no viral load (VL) data available at Week 48.

Time frame: Week 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (NUMBER)
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis MethodVirologic Response50.0 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis MethodVirologic Failure31.8 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis MethodNo VL Data Available18.2 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis MethodVirologic Response45.5 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis MethodVirologic Failure36.4 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response (Plasma Viral Load < 50 Copies/mL) at Week 48 Using the Snapshot Analysis MethodNo VL Data Available18.2 Percentage of Participants
Secondary

The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method

The table below shows the percentage of participants per time point with a virologic response defined as having a plasma viral load (VL) \<50 copies/mL, and with plasma VL \<400 copies/mL using the Non-Completing = Failure (NC=F) imputation method (ie, participants who discontinued early were counted as nonresponders by having their VL values after discontinuation imputed with their Baseline value, thus resulting in a 0 change).

Time frame: Baseline, Weeks 4, 12, 24, 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (NUMBER)
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Baseline9.1 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 431.8 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 1259.1 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 2463.6 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 4850.0 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Baseline40.9 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 477.3 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 1268.2 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 2472.7 Percentage of Participants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 4850.0 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 1281.8 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Baseline9.1 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Baseline40.9 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 436.4 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 4859.1 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 1259.1 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 477.3 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 2463.6 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<400 copies/mL, Week 2472.7 Percentage of Participants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Non-Completing = Failure (NC=F) Imputation Method<50 copies/mL, Week 4845.5 Percentage of Participants
Secondary

The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method

The table below shows the percentage of participants with a virologic response defined as a viral load \<50 Copies/mL and \<400 Copies/mL per time point calculated using the time to loss of virologic response (TLOVR) imputation method.

Time frame: Baseline, Weeks 4, 12, 24, 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (NUMBER)
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Baseline9.1 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 431.8 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 1259.1 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 2463.6 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 4845.5 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Baseline36.4 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 477.3 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 1268.2 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 2468.2 Percentage of Particpants
ATV/Rtv 300/100 mg (Reference)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 4859.1 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 1286.4 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Baseline4.5 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Baseline40.9 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 436.4 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 4854.5 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 1254.5 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 477.3 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 2459.1 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<400 copies/mL, Week 2468.2 Percentage of Particpants
ATV/Rtv 300/100 mg (Test)The Percentage of Participants With a Virologic Response Using the Time to Loss of Virologic Response (TLOVR) Imputation Method<50 copies/mL, Week 4850.0 Percentage of Particpants
Secondary

Time to Confirmed Virologic Response

The table below provides the time in days it took participants to reach a confirmed virologic response defined as a plasma viral load (VL) \<50 copies/mL, and plasma VL \<400 copies/mL analyzed according to the Time to Loss of Virologic Response (TLOVR) imputation method.

Time frame: Prebaseline to Week 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (MEDIAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Time to Confirmed Virologic ResponsePlasma VL < 50 copies/mL71.0 Days95% Confidence Interval 10.87
ATV/Rtv 300/100 mg (Reference)Time to Confirmed Virologic ResponsePlasma VL < 400 copies/mL28.0 Days95% Confidence Interval 5.02
ATV/Rtv 300/100 mg (Test)Time to Confirmed Virologic ResponsePlasma VL < 50 copies/mL76.0 Days95% Confidence Interval 9.95
ATV/Rtv 300/100 mg (Test)Time to Confirmed Virologic ResponsePlasma VL < 400 copies/mL28.0 Days95% Confidence Interval 6.47
Secondary

Time to Virologic Failure

The table below shows the number of days to virologic failure defined as a plasma viral load (VL) \> 50 copies/mL for participants who had been virologic responders (ie, having a plasma VL \<50, and \<400 copies/mL according to the time to loss of virologic response \[TLOVR\] imputation method). Time to virologic failure was the time to subsequent loss of virologic response, and the time was calculated from Prebaseline (Week -2). Participants who never achieved a virologic response were defined as nonresponders and counted as virologic failures on Day 1.

Time frame: Prebaseline to Week 48

Population: The population analyzed included all randomized participants with at least 1 etravirine (ETR) intake regardless of their compliance with the protocol (ie, the efficacy ITT population).

ArmMeasureGroupValue (MEDIAN)Dispersion
ATV/Rtv 300/100 mg (Reference)Time to Virologic FailureVirologic Responders (Plasma VL < 50 copies/mL)318.0 Days95% Confidence Interval 31.9
ATV/Rtv 300/100 mg (Reference)Time to Virologic FailureVirologic Responders (Plasma VL < 400 copies/mL)NA Days95% Confidence Interval 28.92
ATV/Rtv 300/100 mg (Test)Time to Virologic FailureVirologic Responders (Plasma VL < 50 copies/mL)NA Days95% Confidence Interval 22.46
ATV/Rtv 300/100 mg (Test)Time to Virologic FailureVirologic Responders (Plasma VL < 400 copies/mL)NA Days95% Confidence Interval 17.28

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026