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48-Week Study Of GW433908 And Ritonavir Or GW433908 Alone, Twice Daily In Pediatric Patients With HIV Infection

A 48 Week, Phase II, Non-Comparative, Open-label, Multi-Cohort, Multicenter Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Antiviral Activity of GW433908/Ritonavir BID When Administered to HIV-1 Infected, PI-Naïve and Experienced, Pediatric Subjects, 2 to 18 Years Old and of GW433908 BID Administered to PI-Naïve, Pediatric Subjects 2 to < 6 Years Old

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00089583
Enrollment
110
Registered
2004-08-10
Start date
2004-07-31
Completion date
2013-07-31
Last updated
2017-03-07

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

Conditions

Infection, Human Immunodeficiency Virus I

Keywords

antiretroviral therapy, pediatrics, AGENERASE, amprenavir, fosamprenavir, HIV Infection, ritonavir, protease inhibitor, LEXIVA

Brief summary

This is a 48-week study to collect information on the safety and activity of an investigational medicine in patients, ages 2 to 18 years old, with HIV infection .

Detailed description

A 48 Week, Phase II, non-comparative, open-label, multi-cohort, multicenter study to evaluate the safety, tolerability, pharmacokinetics and antiviral activity of GW433908/Ritonavir BID when administered to HIV-1 infected PI-Naive and experienced, Pediatric Subjects 2 to 18 years old and of GW433908 BID Administered to PI-Naive Pediatric subjects 2 to \<6 years old

Interventions

Fosamprenavir suspension or tablet bid

DRUGRitonavir

Ritonavir solution bid

Sponsors

GlaxoSmithKline
CollaboratorINDUSTRY
ViiV Healthcare
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Males or females 2 to 18 years of age Cohorts 1A and 1B, up to one month before 6th birthday at Baseline/Day 1 Cohort 2, up to one month before 12th birthday at Baseline/Day 1 Cohort 3, up to one month before 19th birthday at Baseline/Day 1 * A female is eligible to enter and participate in this study if she is of: 1. non-childbearing potential (i.e., physiologically incapable of becoming pregnant, including any female who is pre-menarchial); or, 2. child-bearing potential with a negative serum pregnancy test at screen, a negative urine pregnancy test on Day 1 and who agrees to use one of the following methods of contraception (any contraception method must be used consistently and correctly, i.e., in accordance with both the product label and the instructions of a physician). Premenarchial females who develop child-bearing potential while on the study will be expected to follow one of the methods of contraception listed below. Agreement for complete abstinence from intercourse from 2 weeks prior to administration of study drugs, throughout the study and for 2 weeks after discontinuation of all study medications. Should a female subject of childbearing potential decide to become sexually active during the course of the study, she must be counseled and be willing to use one of the contraception methods listed below: Double barrier contraception (male condom/spermicide, male condom/diaphragm, diaphragm/spermicide) Any intrauterine device (IUD) with published data showing that the expected failure rate is less than 1% per year (not all IUDs meet this criterion) Any other method with published data showing that the lowest expected failure rate for that method is less than 1% per year. Hormonal contraception is not recommended, due to decreased efficacy of contraception as well as increased risk of hepatic transaminase elevation (see Section 8.2). All subjects of childbearing potential or developing child-bearing potential while participating in this study should be counseled on the practice of safe/safer sex. * Parent or legal guardian (and subject whenever possible) has the ability to understand and provide written informed consent for the subject to participate in the trial. Verbal witnessed assent must be obtained from the subject whenever possible. * Screening plasma HIV-1 RNA \>=400copies/mL. * Subjects must meet one of the following criterion: Antiretroviral therapy (ART)-naïve or PI-naïve subjects (defined as having received less than one week of any PI and any length of therapy with Nucleoside Reverse Transcriptase Inhibitors (NRTIs) and/or Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTIs)). PI-experienced subjects (defined as having received greater than one week prior PI therapy with no more than three PIs). Prior RTV boosted PI therapy will be considered as only one PI as long as the RTV dose was lower than that recommended for use of RTV as an antiretroviral age

Exclusion criteria

* Prior history of having received APV or FPV for \>7 days. * NNRTI use within 14 days prior to study drug administration or anticipated need for concurrent NNRTI therapy during the treatment period of the study. * Subjects who, in the investigator's opinion, are not able to comply with the requirements of the study. * Subject is in the initial acute phase of a Centers for Disease Control and Prevention (CDC) Clinical Category C event or infection (per 1994 classification) at Baseline. Subject may be enrolled provided they are receiving treatment for the infection, such treatment not being contraindicated with FPV, and the subjects are clinically improving at the Baseline visit. * Presence of a malabsorption syndrome or other gastrointestinal dysfunction which might interfere with drug absorption or render the subject unable to take oral medication. * Pregnant or lactating females. * Presence of any serious medical condition (e.g., hemoglobinopathy, chronic anemia, a history of insulin resistance, diabetes, cardiac dysfunction, hepatitis or clinically relevant pancreatitis) which, in the opinion of the investigator, might compromise the safety of the subject. * Grade 3 or 4 transaminase levels (ALT and/or AST) within 28 days prior to study drug administration and/or clinically relevant episodes of hepatitis within the previous 6 months. * Any acute laboratory abnormality at screen which, in the opinion of the investigator, should preclude the subject's participation in the study of an investigational compound. If subjects are found to have an acute Grade 4 laboratory abnormality at screening, this test may be repeated once within the screening window. Any verified Grade 4 laboratory abnormality at screen would exclude a subject from study participation. * Treatment with radiation therapy or cytotoxic chemotherapeutic agents within 28 days of study drug administration or an anticipated need for such treatment within the study period. * Treatment with immunomodulating agents (e.g., systemic corticosteroids, interleukins, interferons) or any agent with known anti-HIV activity (e.g., hydroxyurea or foscarnet) within 28 days of study drug administration. * Treatment with any of the following medications within 28 days prior to receiving study medication or the anticipated need during the study: Drugs whose plasma concentration may be increased to unsafe levels when co-administered with FPV including: Amiodarone, astemizole, bepridil, cisapride, dihydroergotamine, ergonovine, ergotamine, flecainide, halofantrine, lidocaine, lovastatin, methylergonovine, midazolam, pimozide, propafenone, quinidine, simvastatin, terfenadine, and triazolam Drugs with the potential to significantly decrease plasma APV concentrations including: Carbamazepine, dexamethasone, phenobarbital, primidone, rifampin, St Johns Wort. * Treatment with other investigational drugs/therapies (note: treatments available through a Treatment Investigational New Drug \[IND\] or other expanded-access mechanism will be evaluated on a case-by-case basis in consultation with the sponsor) within 28 days prior to study drug administration or during the treatment period of the study. * History of drug or other allergy which, in the opinion of the investigator, contraindicates participation in the trial or known hypersensitivity to any study medications (e.g., documented hypersensitivity to a nucleoside analogue). * Substantial non-adherence based on history

Design outcomes

Primary

MeasureTime frameDescription
Plasma Amprenavir (APV) AUC (0-tau[τ])Week 48Plasma samples were assayed for APV concentrations using a validated assay. The GlaxoSmithKline (GSK) Department of Clinical Pharmacology Modeling and Simulation conducted pharmacokinetic (PK) analysis of the plasma APV concentration-time data using a model-independent approach. As a measure of total drug exposure, the area under the plasma-concentration-versus-time curve over the dosing interval at steady-state (AUC\[0-τ\]), where τ is the length of the dosing interval, was calculated by the linear up/log down trapezoidal method. hr, hour; µg, micrograms; mL, milliliter.
Plasma APV CmaxWeek 48The maximum concentration at steady state (Cmax) was measured.
Plasma APV CτWeek 48The plasma concentration at the end of the dosing interval at steady-state (Cτ) was measured.
Plasma APV CL/F Following Dosing Expressed in mg/kgWeek 48Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated using the formulation: APV Dose in mg/kg units divided by AUC(0-τ). For FPV, doses were expressed in APV molar equivalents (50 mg of FPV = 43.2 mg of APV). Normalizing CL/F for bodyweight allows for comparison of CL/F across populations.
Plasma APV CL/F Following Dosing Expressed in mgWeek 48Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated as dose/AUC(0-τ). For FPV, doses were expressed in APV molar equivalents (50 mg of FPV = 43.2 mg of APV).
Plasma APV TmaxWeek 48The time to reach the maximum concentration (Cmax) at steady state is defined as tmax.
Plasma APV t1/2Week 48The apparent terminal phase half-life (t1/2) is calculated as loge2/λz. The apparent terminal phase rate constant (λz) is the slope of the terminal portion of the logarithmically transformed concentration-time data as estimated by linear regression.
Number of Participants Who Permanently Discontinued the Treatment Due to Any Adverse Event (AE)Week 48An AE is any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.
Change From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48Baseline (Day 1) and Week 48Blood samples of all participants were collected under fasting conditions for the evaluation of triglycerides, total cholesterol, HDL cholesterol, LDL cholesterol, and serum glucose. Clinical chemistry analyses were carried out using the observed analysis strategy. Change from Baseline in triglycerides, total cholesterol, HDL cholesterol, LDL cholesterol, and serum glucose was calculated as the value at Week 48 minus the value at Baseline.
Change From Baseline in Serum Lipase at Week 48Baseline (Day 1) and Week 48Blood samples of all participants were collected for the evaluation of serum lipase. Clinical chemistry analyses were carried out using the observed analysis strategy. Change from Baseline in serum lipase was calculated as the value at Week 48 minus the value at Baseline.
Change From Baseline in Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) at Week 48Baseline (Day 1) and Week 48Blood samples of the participants were collected for the evaluation of AST and ALT. Clinical chemistry analyses were carried out using the observed analysis strategy. Change from Baseline in AST and ALT was calculated as the value at Week 48 minus the value at Baseline.
Number of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesBaseline (Day 1) until Week 48A toxicity was considered TE if it was \> than the Baseline grade, and if it was observed on/after the date of the first dose of study drug (SD), and on/before the date of the last dose of SD. Leucopenia is the decrease in the number of leucocytes (white blood cells \[WBCs\]); neutropenia is the decrease in the number of neutrophils (type of WBCs). Per the Division of AIDS Table for Grading the Severity of Adult and Pediatric AEs: Grade 3 is severe; Grade 4 is potentially life-threatening. ULN, upper limit of normal; LDL, low-density lipoprotein; PC, platelet count.

Secondary

MeasureTime frameDescription
Plasma FPV t1/2Week 48The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.
Number of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48Week 48Blood samples of participants were collected to measure plasma HIV-1 RNA concentrations. PI-exp = PI-experienced.Virologic success was defined as plasma HIV-1 RNA \<400 copies/mL. Virologic failure: (1) HIV-1 RNA \>=400 copies/mL, (2) change of background antiretroviral treatment (ART), (3) discontinued study due to lack of efficacy, (4) discontinued study with last HIV-1 \>=400 copies/mL. No virologic data at Week 48 window: (a) discontinued study due to an adverse event or death, (b) discontinued study due to other reasons, (c) missing data during window but still on study.
Number of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)Baseline and Weeks 2, 12, 24, and 48Blood samples of participants were collected to measure plasma HIV-1 RNA concentrations. PI-exp = PI-experienced. Viral load, measured in RNA copies per milliliter of plasma, is an efficacy measure for antiretroviral drugs. In the Missing, Switch, or Discontinuation = Failure (MSD=F) analysis, participants who had missing data at or had discontinued the study prior to a certain time point or had changed their background antiretroviral regimen are classified as non-responders.
Median Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)Baseline and Weeks 2, 12, 24, and 48Blood samples of participants were collected to assess the decrease in the number of HIV-1 RNA.
Median Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)Baseline and Weeks 2, 12, 24, and 48Blood samples of participants were collected to assess the decrease in the number of HIV-1 RNA. Change from Baseline at Weeks 2, 12, 24, and 48 was calculated as value at Week 2, 12, 24, and 48 minus the value at Baseline.
Number of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)Baseline and Weeks 2, 12, 24, and 48Blood samples of participants were collected to assess the decrease in the number of HIV-1 RNA.
Cluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48Baseline and Weeks 2, 12, 24, and 48Blood samples of participants were collected for the measurement of CD4+ cell count. Observed analysis was used for the summary of proportion endpoints using viral load data. CD4+ cells are white blood cells that are important in fighting infection. HIV infects CD4+ cells, replicates in them, and destroys them. CD4+ cell count provides a measure of the status of the immune system and to what extent it is affected by HIV.
Change From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48Baseline and Weeks 2, 12, 24, and 48Blood samples of participants were collected for the measurement of CD4+ cell count. Observed analysis was used for the summary of proportion endpoints using viral load data. Change from Baseline was calculated as the value at Weeks 2, 12, 24, and 48 minus the value at Baseline.
Plasma Ritonavir (RTV) AUC (0-τ)Week 48Plasma samples were assayed for RTV concentrations using a validated assay. The GlaxoSmithKline (GSK) Department of Clinical Pharmacology Modeling and Simulation conducted pharmacokinetic (PK) analysis of the plasma RTV concentration-time data using a model-independent approach. As a measure of total drug exposure, the area under the plasma-concentration-versus-time curve over the dosing interval at steady-state (AUC\[0-τ\]), where τ is the length of the dosing interval, was calculated by the linear up/log down trapezoidal method.
Change From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48Baseline and Week 2, 12, 24, 48Blood samples of participants were collected for the measurement of the percentage of total lymphocytes that are CD4+ cells. Observed analysis was used for the summary of proportion endpoints using viral load data. Change from Baseline in percentage was calculated as the value at Weeks 2, 12, 24, and 48 minus the value at Baseline.
Number of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseWeek 48A blood sample was drawn for par. failing to respond to therapy, and the mutations present in the virus were identified. For each par., the mutations found at the time of failure were compared with any mutations found in the blood sample at baseline. New International AIDS Society-USA defined resistance mutations that developed at the time of failure were tabulated by drug class. VF, virologic failure; NRTI, nucleoside reverse transcriptase inhibitor; NNRTI, non-nucleoside reverse transcriptase inhibitor; PI, protease inhibitor. Par. are grouped by study arm and prior therapy experience.
Number of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAfter Week 48 through Week 240A blood sample was drawn for par. remaining in the study after Week 48 and failing to respond to therapy, and the mutations present in the virus were identified. For each par., the mutations found at the time of failure were compared with any mutations found in the blood sample at baseline. New International AIDS Society-USA defined resistance mutations that developed at the time of failure were tabulated by drug class. VF, virologic failure; NRTI, nucleoside reverse transcriptase inhibitor; NNRTI, non-nucleoside reverse transcriptase inhibitor; PI, protease inhibitor. Par. are grouped by study arm and prior therapy experience.
Number of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Baseline through 48 WeeksA blood sample was drawn for par. failing to respond to therapy, and changes in DS for HIV isolated from the par. for each drug used in the study were assessed. The changes in DS detected by phenotypic assay in virus from the sample collected at the time of failure was compared with DS in the virus from the blood sample at baseline. Par. are grouped by study arm and prior therapy experience. DS is the state of HIV being susceptible to the antiretroviral agent (the virus can be inhibited by the drug). Reduced DS (i.e., HIV is resistant to the antiretroviral agent) can lead to treatment failure.
Number of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Week 60 through Week 240A blood sample was drawn for par. remaining in the study after Week 48 and failing to respond to therapy, and changes in DS for HIV isolated from the par. for each drug used in the study were assessed. The changes in DS detected by phenotypic assay in virus from the sample collected at the time of failure was compared with DS in the virus from the blood sample at baseline. Par. are grouped by study arm and prior therapy experience. DS is the state of HIV being susceptible to the antiretroviral agent (the virus can be inhibited by the drug). Reduced DS (i.e., HIV is resistant to the antiretroviral agent) can lead to treatment failure.
Number of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeeks 2, 12, 24, and 48The PACTG Adherence Questionnaire records individual study drugs, the expected number of doses/24 hour period, and the number of doses missed in the 3 days prior to the study visit. Responses were summarized by age cohort, study drug, treatment regimen, and visit for exploratory analysis only.
Correlation Between Plasma APV Exposure and Plasma vRNA, CD4+ Cell Counts, and the Occurrence of Adverse EventsWeek 48No formal analysis has been performed or is planned to correlate plasma APV PK with efficacy and safety outcomes.
Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48Baseline and Weeks 2, 12, 24, and 48Blood samples of participants were collected for the measurement of the percentage of total lymphocytes that are CD4+ cells. Observed analysis was used for the summary of proportion endpoints using viral load data.
Plasma RTV CmaxWeek 48The maximum concentration at steady state (Cmax) was measured.
Plasma RTV CτWeek 48The plasma concentration at the end of the dosing interval at steady-state (Cτ) was measured.
Plasma RTV CL/F Following Dosing Expressed in mg/kgWeek 48Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated using the formulation: RTV Dose in mg/kg units divided by AUC(0-τ). Normalizing CL/F for bodyweight allows for comparison of CL/F across populations.
Plasma RTV CL/F Following Dosing Expressed in mgWeek 48Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated as dose/AUC(0-τ).
Plasma RTV TmaxWeek 48The time to reach the maximum concentration (Cmax) at steady state is defined as (tmax).
Plasma RTV t1/2Week 48alf-life (t1/2) is calculated as loge2/λz. The apparent terminal phase rate constant (λz) is the slope of the terminal portion of the logarithmically transformed concentration-time data as estimated by linear regression.
Plasma FPV AUC (0-τ)Week 48The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.
Plasma FPV Cmax and CτWeek 48The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.
Plasma FPV CL/F Following Dosing Expressed in mg/kgWeek 48The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.
Plasma FPV CL/F Following Dosing Expressed in mgWeek 48The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.
Plasma FPV TmaxWeek 48The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.

Countries

Belgium, Canada, Romania, Russia, South Africa, Spain, United States

Participant flow

Recruitment details

A total of 110 participants (par.) were enrolled in the study; however, 1 par. withdrew from the study prior to the first dose of study drug and was not included in the Intent-to-Treat Exposed or Safety Populations. Therefore, 109 par. received \>=1 dose of study drug and are thus categorized as starting the study in the Participant Flow module.

Participants by arm

ArmCount
FPV Treatment Group
Human immunodeficiency virus type 1 (HIV-1)-infected, protease inhibitor (PI)-naïve pediatric participants, 2 to \<6 years old, receiving fosamprenavir (FPV) oral suspension 30-40 milligrams per kilogram (mg/kg) twice a day (BID). PI-naïve participants are defined as those participants who received less than one week of any PI and any length of therapy with nucleoside reverse transcriptase inhibitors (NRTIs) and/or non-NRTIs (NNRTIs).
20
FPV/RTV Treatment Group
HIV-1-infected, PI-naïve and -experienced pediatric participants, 2 to 18 years old, receiving FPV boosted with ritonavir (FPV/RTV) BID. Participants who were 2-\<6 years old received FPV oral suspension/ritonavir oral solution 20/4 or 23/3 mg/kg BID; participants who were 6 years old or older received FPV oral suspension/RTV oral solution 15/3 or 18/3 mg/kg BID. A 700/100 mg BID tablet regimen was administered to participants able to take tablets/capsules. PI-experienced participants are defined as those participants who received more than one week of prior PI therapy with no more than three PIs. Prior RTV-boosted therapy was considered as only one PI as long as the RTV dose was lower than that recommended for use of RTV as an antiretroviral agent.
89
Total109

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event03
Overall StudyInsufficient Viral Load Response55
Overall StudyNecessity to Use Prohibited Drug10
Overall StudyNon-Compliance04
Overall StudyParticipant Incarcerated01
Overall StudyParticipant Management Criteria Met01
Overall StudyParticipant (Par) Didn't Take Medication10
Overall StudyParticipant Refused Study Medication02
Overall StudyPoor Medical Compliance/Adherence Issues03
Overall StudyPrincipal Investigator Decision010
Overall StudyProtocol Violation03
Overall StudyReason Not Provided01
Overall StudyStart of Disallowed Medication01
Overall StudyWithdrawal by Subject04

Baseline characteristics

CharacteristicFPV Treatment GroupFPV/RTV Treatment GroupTotal
Age, Continuous2.9 Years
STANDARD_DEVIATION 1.07
10.0 Years
STANDARD_DEVIATION 4.49
8.7 Years
STANDARD_DEVIATION 4.93
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
<13 years (yrs); mildly symptomatic (S)
18 participants26 participants44 participants
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
>=13 yrs; AIDS
0 participants5 participants5 participants
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
>=13 yrs; asymptomatic/lymphadenopathy/acute HIV
0 participants12 participants12 participants
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
>=13 yrs; asymptomatic, not AIDS
0 participants14 participants14 participants
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
<13 yrs; moderately S
1 participants15 participants16 participants
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
<13 yrs; non-S
1 participants5 participants6 participants
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
>=13 yrs; not reported
0 participants2 participants2 participants
Par with the Indicated 1993 Center for Disease Control and Prevention (CDC) Baseline Classification
<13 yrs; severely S
0 participants10 participants10 participants
Race/Ethnicity, Customized
Arabic/North African
0 participants1 participants1 participants
Race/Ethnicity, Customized
Black
0 participants43 participants43 participants
Race/Ethnicity, Customized
Race Not Specified
1 participants3 participants4 participants
Race/Ethnicity, Customized
South Asian
0 participants1 participants1 participants
Race/Ethnicity, Customized
White/Caucasian
19 participants41 participants60 participants
Sex: Female, Male
Female
15 Participants43 Participants58 Participants
Sex: Female, Male
Male
5 Participants46 Participants51 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
18 / 2074 / 89
serious
Total, serious adverse events
5 / 2013 / 89

Outcome results

Primary

Change From Baseline in Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) at Week 48

Blood samples of the participants were collected for the evaluation of AST and ALT. Clinical chemistry analyses were carried out using the observed analysis strategy. Change from Baseline in AST and ALT was calculated as the value at Week 48 minus the value at Baseline.

Time frame: Baseline (Day 1) and Week 48

Population: Safety Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupChange From Baseline in Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) at Week 48ALT-3 International units per liter (IU/L)
FPV Treatment GroupChange From Baseline in Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) at Week 48AST-6 International units per liter (IU/L)
FPV/RTV Treatment GroupChange From Baseline in Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) at Week 48AST-9 International units per liter (IU/L)
FPV/RTV Treatment GroupChange From Baseline in Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) at Week 48ALT-7 International units per liter (IU/L)
Primary

Change From Baseline in Serum Lipase at Week 48

Blood samples of all participants were collected for the evaluation of serum lipase. Clinical chemistry analyses were carried out using the observed analysis strategy. Change from Baseline in serum lipase was calculated as the value at Week 48 minus the value at Baseline.

Time frame: Baseline (Day 1) and Week 48

Population: Safety Population. Only those participants contributing data were analyzed.

ArmMeasureValue (MEDIAN)
FPV Treatment GroupChange From Baseline in Serum Lipase at Week 48-2.0 Units per liter (U/L)
FPV/RTV Treatment GroupChange From Baseline in Serum Lipase at Week 48-1.0 Units per liter (U/L)
Primary

Change From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48

Blood samples of all participants were collected under fasting conditions for the evaluation of triglycerides, total cholesterol, HDL cholesterol, LDL cholesterol, and serum glucose. Clinical chemistry analyses were carried out using the observed analysis strategy. Change from Baseline in triglycerides, total cholesterol, HDL cholesterol, LDL cholesterol, and serum glucose was calculated as the value at Week 48 minus the value at Baseline.

Time frame: Baseline (Day 1) and Week 48

Population: Safety Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48Total cholesterol; n=17, 651.1 Millimoles per liter (mmol/L)
FPV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48LDL cholesterol; n=17, 640.6 Millimoles per liter (mmol/L)
FPV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48HDL cholesterol; n=17, 650.4 Millimoles per liter (mmol/L)
FPV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48Glucose; n=18, 690.0 Millimoles per liter (mmol/L)
FPV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48Triglycerides; n=17, 650.1 Millimoles per liter (mmol/L)
FPV/RTV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48Glucose; n=18, 690.1 Millimoles per liter (mmol/L)
FPV/RTV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48Triglycerides; n=17, 650.2 Millimoles per liter (mmol/L)
FPV/RTV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48Total cholesterol; n=17, 650.9 Millimoles per liter (mmol/L)
FPV/RTV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48HDL cholesterol; n=17, 650.3 Millimoles per liter (mmol/L)
FPV/RTV Treatment GroupChange From Baseline in Triglycerides, Total Cholesterol, Low-density Lipoprotein (LDL) Cholesterol, High-density Lipoprotein (HDL) Cholesterol, and Serum Glucose at Week 48LDL cholesterol; n=17, 640.5 Millimoles per liter (mmol/L)
Primary

Number of Participants Who Permanently Discontinued the Treatment Due to Any Adverse Event (AE)

An AE is any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.

Time frame: Week 48

Population: Safety Population: all participants with documented evidence of having received at least one dose of investigational treatment.

ArmMeasureValue (NUMBER)
FPV Treatment GroupNumber of Participants Who Permanently Discontinued the Treatment Due to Any Adverse Event (AE)0 participants
FPV/RTV Treatment GroupNumber of Participants Who Permanently Discontinued the Treatment Due to Any Adverse Event (AE)4 participants
Primary

Number of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory Abnormalities

A toxicity was considered TE if it was \> than the Baseline grade, and if it was observed on/after the date of the first dose of study drug (SD), and on/before the date of the last dose of SD. Leucopenia is the decrease in the number of leucocytes (white blood cells \[WBCs\]); neutropenia is the decrease in the number of neutrophils (type of WBCs). Per the Division of AIDS Table for Grading the Severity of Adult and Pediatric AEs: Grade 3 is severe; Grade 4 is potentially life-threatening. ULN, upper limit of normal; LDL, low-density lipoprotein; PC, platelet count.

Time frame: Baseline (Day 1) until Week 48

Population: Safety Population. Only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesAST inc. (>5.0x ULN); n=20, 872 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesHyperglycemia (>13.88 mmol/L); n=16, 580 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesLipase inc. (>3.0x ULN); n=19, 850 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesALT increased (inc.) (>5.0x ULN); n=20, 872 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesLeucopenia (<1.500 x 10^9/L); n=20, 840 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesHypoglycemia (<2.22 mmol/L); n=16, 580 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesNeutropenia (<0.750 x 10^9/L); n=20, 848 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesCholesterol (Chol.) inc. (>7.77 mmol/L); n=16, 430 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesHemoglobin > anemia (<1.16 mmol/L); n=20, 850 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesLDL Chol. inc. (>=4.91 mmol/L); n=16, 430 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesPC > thrombocytopenia (<50.000 x 10^9/L); n=20, 850 participants
FPV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesTriglycerides inc. (>8.48 mmol/L); n=16, 430 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesPC > thrombocytopenia (<50.000 x 10^9/L); n=20, 851 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesALT increased (inc.) (>5.0x ULN); n=20, 872 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesAST inc. (>5.0x ULN); n=20, 872 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesCholesterol (Chol.) inc. (>7.77 mmol/L); n=16, 432 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesHyperglycemia (>13.88 mmol/L); n=16, 580 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesHypoglycemia (<2.22 mmol/L); n=16, 580 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesLDL Chol. inc. (>=4.91 mmol/L); n=16, 434 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesTriglycerides inc. (>8.48 mmol/L); n=16, 430 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesLipase inc. (>3.0x ULN); n=19, 850 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesLeucopenia (<1.500 x 10^9/L); n=20, 840 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesNeutropenia (<0.750 x 10^9/L); n=20, 847 participants
FPV/RTV Treatment GroupNumber of Participants With Treatment-emergent (TE) Grade 3/4 Clinical Chemistry Laboratory AbnormalitiesHemoglobin > anemia (<1.16 mmol/L); n=20, 850 participants
Primary

Plasma Amprenavir (APV) AUC (0-tau[τ])

Plasma samples were assayed for APV concentrations using a validated assay. The GlaxoSmithKline (GSK) Department of Clinical Pharmacology Modeling and Simulation conducted pharmacokinetic (PK) analysis of the plasma APV concentration-time data using a model-independent approach. As a measure of total drug exposure, the area under the plasma-concentration-versus-time curve over the dosing interval at steady-state (AUC\[0-τ\]), where τ is the length of the dosing interval, was calculated by the linear up/log down trapezoidal method. hr, hour; µg, micrograms; mL, milliliter.

Time frame: Week 48

Population: Pharmacokinetic (PK) Population: all participants for whom serial plasma PK samples were analyzed. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])12 to 18 yrs, 700/100 mg BID; n=0, 13NA hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])2 to <6 yrs, 30 mg/kg BID; n=9, 022.3 hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])2 to <6 yrs, 40 mg/kg BID; n=7, 024.1 hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])2 to <6 yrs, 23/3 mg/kg BID; n=0, 14NA hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])6 to <12 yrs, 15/3 mg/kg BID; n=0, 9NA hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])6 to <12 yrs, 18/3 mg/kg BID; n=0, 12NA hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])6 to <12 yrs, 700/100 mg BID; n=0, 3NA hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])12 to 18 yrs, 15/3 mg/kg BID; n=0, 4NA hr*µg/mL
FPV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])12 to 18 yrs, 18/3 mg BID; n=0, 3NA hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])12 to 18 yrs, 15/3 mg/kg BID; n=0, 421.8 hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])12 to 18 yrs, 700/100 mg BID; n=0, 1335.3 hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])6 to <12 yrs, 18/3 mg/kg BID; n=0, 1248.4 hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])2 to <6 yrs, 30 mg/kg BID; n=9, 0NA hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])2 to <6 yrs, 23/3 mg/kg BID; n=0, 1455.3 hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])2 to <6 yrs, 40 mg/kg BID; n=7, 0NA hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])6 to <12 yrs, 700/100 mg BID; n=0, 337.6 hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])12 to 18 yrs, 18/3 mg BID; n=0, 341.7 hr*µg/mL
FPV/RTV Treatment GroupPlasma Amprenavir (APV) AUC (0-tau[τ])6 to <12 yrs, 15/3 mg/kg BID; n=0, 932.3 hr*µg/mL
Primary

Plasma APV CL/F Following Dosing Expressed in mg

Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated as dose/AUC(0-τ). For FPV, doses were expressed in APV molar equivalents (50 mg of FPV = 43.2 mg of APV).

Time frame: Week 48

Population: PK Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg12 to 18 yrs, 18/3 mg BID; n=0, 3NA Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg2 to <6yrs, 30 mg/kg BID; n=9, 0269 Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg2 to <6yrs, 40 mg/kg BID; n=7, 0330 Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg2 to <6yrs, 23/3 mg/kg BID; n=0, 14NA Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg6 to <12 yrs, 15/3 mg/kg BID; n=0, 9NA Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg6 to <12 yrs, 18/3 mg/kg BID; n=0, 12NA Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg6 to <12 yrs, 700/100 mg BID; n=0, 3NA Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg12 to 18 yrs, 15/3 mg/kg BID; n=0, 4NA Milliliters per minute (mL/min)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg12 to 18 yrs, 700/100 mg BID; n=0, 13NA Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg12 to 18 yrs, 15/3 mg/kg BID; n=0, 4392 Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg6 to <12 yrs, 18/3 mg/kg BID; n=0, 12149 Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg2 to <6yrs, 30 mg/kg BID; n=9, 0NA Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg12 to 18 yrs, 18/3 mg BID; n=0, 3198 Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg2 to <6yrs, 40 mg/kg BID; n=7, 0NA Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg6 to <12 yrs, 700/100 mg BID; n=0, 3266 Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg2 to <6yrs, 23/3 mg/kg BID; n=0, 1491 Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg12 to 18 yrs, 700/100 mg BID; n=0, 13284 Milliliters per minute (mL/min)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg6 to <12 yrs, 15/3 mg/kg BID; n=0, 9195 Milliliters per minute (mL/min)
Primary

Plasma APV CL/F Following Dosing Expressed in mg/kg

Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated using the formulation: APV Dose in mg/kg units divided by AUC(0-τ). For FPV, doses were expressed in APV molar equivalents (50 mg of FPV = 43.2 mg of APV). Normalizing CL/F for bodyweight allows for comparison of CL/F across populations.

Time frame: Week 48

Population: PK Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg2 to <6yrs, 40 mg/kg BID; n=7, 023.4 Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 18/3 mg/kg BID; n=0, 12NA Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg2 to <6yrs, 30 mg/kg BID; n=9, 019.3 Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 700/100 mg BID; n=0, 3NA Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 15/3 mg/kg BID; n=0, 4NA Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg2 to <6yrs, 23/3 mg/kg BID; n=0, 14NA Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 18/3 mg BID; n=0, 3NA Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 700/100 mg BID; n=0, 13NA Milliliters/minute/kilogram (mL/min/kg)
FPV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 15/3 mg/kg BID; n=0, 9NA Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 700/100 mg BID; n=0, 135.33 Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg2 to <6yrs, 30 mg/kg BID; n=9, 0NA Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg2 to <6yrs, 40 mg/kg BID; n=7, 0NA Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg2 to <6yrs, 23/3 mg/kg BID; n=0, 146.06 Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 15/3 mg/kg BID; n=0, 96.48 Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 18/3 mg/kg BID; n=0, 125.27 Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 15/3 mg/kg BID; n=0, 410.1 Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 18/3 mg BID; n=0, 36.00 Milliliters/minute/kilogram (mL/min/kg)
FPV/RTV Treatment GroupPlasma APV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 700/100 mg BID; n=0, 35.94 Milliliters/minute/kilogram (mL/min/kg)
Primary

Plasma APV Cmax

The maximum concentration at steady state (Cmax) was measured.

Time frame: Week 48

Population: PK Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV Treatment GroupPlasma APV Cmax2 to <6 yrs, 30 mg/kg BID; n=9, 07.15 Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax6 to <12.yrs, 18/3 mg/kg BID; n=0, 12NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax2 to <6 yrs, 23/3 mg/kg BID; n=0, 14NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax6 to <12 yrs, 700/100 mg BID; n=0, 3NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax2 to <6 yrs, 40 mg/kg BID; n=7, 06.52 Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax12 to 18 yrs, 15/3 mg/kg BID; n=0, 4NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax6 to <12 yrs, 15/3 mg/kg BID; n=0, 10NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax12 to 18 yrs, 18/3 mg/kg BID; n=0, 4NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cmax12 to 18 yrs, 700/100 mg BID; n=0, 13NA Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax12 to 18 yrs, 18/3 mg/kg BID; n=0, 44.91 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax12 to 18 yrs, 700/100 mg BID; n=0, 134.93 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax2 to <6 yrs, 30 mg/kg BID; n=9, 0NA Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax2 to <6 yrs, 40 mg/kg BID; n=7, 0NA Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax2 to <6 yrs, 23/3 mg/kg BID; n=0, 148.66 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax6 to <12 yrs, 15/3 mg/kg BID; n=0, 104.34 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax6 to <12.yrs, 18/3 mg/kg BID; n=0, 126.40 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax6 to <12 yrs, 700/100 mg BID; n=0, 35.85 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cmax12 to 18 yrs, 15/3 mg/kg BID; n=0, 43.92 Micrograms per milliliter (µg/mL)
Primary

Plasma APV Cτ

The plasma concentration at the end of the dosing interval at steady-state (Cτ) was measured.

Time frame: Week 48

Population: PK Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV Treatment GroupPlasma APV Cτ2 to <6 yrs, 40 mg/kg BID; n=10, 00.70 Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ6 to <12 yrs, 700/100 mg BID; n=0, 7NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ6 to <12 yrs, 15/3 mg/kg BID; n=0, 13NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ12 to 18 yrs, 15/3 mg/kg BID; n=0, 6NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ2 to <6 yrs, 23/3 mg/kg BID; n=0, 16NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ12 to 18 yrs, 18/3 mg/kg BID; n=0, 10NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ6 to <12 yrs, 18/3 mg/kg BID; n=0, 23NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ12 to 18 yrs, 700/100 mg BID; n=0, 40NA Micrograms per milliliter (µg/mL)
FPV Treatment GroupPlasma APV Cτ2 to <6 yrs, 30 mg/kg BID; n=19, 00.55 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ12 to 18 yrs, 700/100 mg BID; n=0, 402.01 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ2 to <6 yrs, 30 mg/kg BID; n=19, 0NA Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ2 to <6 yrs, 40 mg/kg BID; n=10, 0NA Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ2 to <6 yrs, 23/3 mg/kg BID; n=0, 163.39 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ6 to <12 yrs, 15/3 mg/kg BID; n=0, 132.24 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ6 to <12 yrs, 18/3 mg/kg BID; n=0, 232.42 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ6 to <12 yrs, 700/100 mg BID; n=0, 71.81 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ12 to 18 yrs, 15/3 mg/kg BID; n=0, 61.45 Micrograms per milliliter (µg/mL)
FPV/RTV Treatment GroupPlasma APV Cτ12 to 18 yrs, 18/3 mg/kg BID; n=0, 101.80 Micrograms per milliliter (µg/mL)
Primary

Plasma APV t1/2

The apparent terminal phase half-life (t1/2) is calculated as loge2/λz. The apparent terminal phase rate constant (λz) is the slope of the terminal portion of the logarithmically transformed concentration-time data as estimated by linear regression.

Time frame: Week 48

Population: PK Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV Treatment GroupPlasma APV t1/212 to 18 yrs, 15/3 mg/kg BID; n=0, 4NA hours
FPV Treatment GroupPlasma APV t1/22 to <6yrs, 30 mg/kg BID; n=9, 03.03 hours
FPV Treatment GroupPlasma APV t1/22 to <6yrs, 40 mg/kg BID; n=5, 03.18 hours
FPV Treatment GroupPlasma APV t1/22 to <6yrs, 23/3 mg/kg BID; n=0, 14NA hours
FPV Treatment GroupPlasma APV t1/26 to <12 yrs, 15/3 mg/kg BID; n=0, 7NA hours
FPV Treatment GroupPlasma APV t1/26 to <12 yrs, 18/3 mg/kg BID; n=0, 10NA hours
FPV Treatment GroupPlasma APV t1/26 to <12 yrs, 700/100 mg BID; n=0, 2NA hours
FPV Treatment GroupPlasma APV t1/212 to 18 yrs, 18/3 mg BID; n=0, 4NA hours
FPV Treatment GroupPlasma APV t1/212 to 18 yrs, 700/100 mg BID; n=0, 11NA hours
FPV/RTV Treatment GroupPlasma APV t1/212 to 18 yrs, 700/100 mg BID; n=0, 117.64 hours
FPV/RTV Treatment GroupPlasma APV t1/26 to <12 yrs, 18/3 mg/kg BID; n=0, 108.41 hours
FPV/RTV Treatment GroupPlasma APV t1/22 to <6yrs, 30 mg/kg BID; n=9, 0NA hours
FPV/RTV Treatment GroupPlasma APV t1/212 to 18 yrs, 18/3 mg BID; n=0, 48.76 hours
FPV/RTV Treatment GroupPlasma APV t1/22 to <6yrs, 40 mg/kg BID; n=5, 0NA hours
FPV/RTV Treatment GroupPlasma APV t1/26 to <12 yrs, 700/100 mg BID; n=0, 27.43 hours
FPV/RTV Treatment GroupPlasma APV t1/22 to <6yrs, 23/3 mg/kg BID; n=0, 145.21 hours
FPV/RTV Treatment GroupPlasma APV t1/212 to 18 yrs, 15/3 mg/kg BID; n=0, 46.12 hours
FPV/RTV Treatment GroupPlasma APV t1/26 to <12 yrs, 15/3 mg/kg BID; n=0, 710.5 hours
Primary

Plasma APV Tmax

The time to reach the maximum concentration (Cmax) at steady state is defined as tmax.

Time frame: Week 48

Population: PK Population. Only those participants contributing data were analyzed.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupPlasma APV Tmax2 to <6yrs, 23/3 mg/kg BID; n=0, 14NA hours
FPV Treatment GroupPlasma APV Tmax6 to <12 yrs, 700/100 mg BID; n=0, 3NA hours
FPV Treatment GroupPlasma APV Tmax2 to <6yrs, 40 mg/kg BID; n=7, 01.00 hours
FPV Treatment GroupPlasma APV Tmax12 to 18 yrs, 15/3 mg/kg BID; n=0, 4NA hours
FPV Treatment GroupPlasma APV Tmax6 to <12 yrs, 15/3 mg/kg BID; n=0, 10NA hours
FPV Treatment GroupPlasma APV Tmax12 to 18 yrs, 18/3 mg BID; n=0, 3NA hours
FPV Treatment GroupPlasma APV Tmax6 to <12 yrs, 18/3 mg/kg BID; n=0, 12NA hours
FPV Treatment GroupPlasma APV Tmax12 to 18 yrs, 700/100 mg BID; n=0, 13NA hours
FPV Treatment GroupPlasma APV Tmax2 to <6yrs, 30 mg/kg BID; n=9, 01.17 hours
FPV/RTV Treatment GroupPlasma APV Tmax12 to 18 yrs, 700/100 mg BID; n=0, 132.00 hours
FPV/RTV Treatment GroupPlasma APV Tmax6 to <12 yrs, 15/3 mg/kg BID; n=0, 102.00 hours
FPV/RTV Treatment GroupPlasma APV Tmax2 to <6yrs, 30 mg/kg BID; n=9, 0NA hours
FPV/RTV Treatment GroupPlasma APV Tmax2 to <6yrs, 40 mg/kg BID; n=7, 0NA hours
FPV/RTV Treatment GroupPlasma APV Tmax2 to <6yrs, 23/3 mg/kg BID; n=0, 141.25 hours
FPV/RTV Treatment GroupPlasma APV Tmax6 to <12 yrs, 18/3 mg/kg BID; n=0, 121.96 hours
FPV/RTV Treatment GroupPlasma APV Tmax6 to <12 yrs, 700/100 mg BID; n=0, 33.92 hours
FPV/RTV Treatment GroupPlasma APV Tmax12 to 18 yrs, 15/3 mg/kg BID; n=0, 41.00 hours
FPV/RTV Treatment GroupPlasma APV Tmax12 to 18 yrs, 18/3 mg BID; n=0, 31.50 hours
Secondary

Change From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48

Blood samples of participants were collected for the measurement of CD4+ cell count. Observed analysis was used for the summary of proportion endpoints using viral load data. Change from Baseline was calculated as the value at Weeks 2, 12, 24, and 48 minus the value at Baseline.

Time frame: Baseline and Weeks 2, 12, 24, and 48

Population: ITT-E Population. Only those participants contributing data at the indicated time points were analyzed. The number of participants analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1 week prior PI therapy with no more than 3 PIs before trial enrollment) participants.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 2; n=0, 32NA cells/cu mm
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 2; n=13, 4120 cells/cu mm
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 12; n=0, 31NA cells/cu mm
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 24; n=18, 44350 cells/cu mm
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 24; n=0, 34NA cells/cu mm
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 12; n=19, 46170 cells/cu mm
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 48; n=0, 29NA cells/cu mm
FPV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 48; n=17, 42340 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 48; n=0, 29180 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 48; n=17, 42217 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 12; n=19, 46180 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 24; n=18, 44184 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 2; n=0, 3290 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 12; n=0, 31200 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-exp, Week 24; n=0, 34150 cells/cu mm
FPV/RTV Treatment GroupChange From Baseline in CD4+ Cell Count at Weeks 2, 12, 24, and 48PI-naïve, Week 2; n=13, 4160 cells/cu mm
Secondary

Change From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48

Blood samples of participants were collected for the measurement of the percentage of total lymphocytes that are CD4+ cells. Observed analysis was used for the summary of proportion endpoints using viral load data. Change from Baseline in percentage was calculated as the value at Weeks 2, 12, 24, and 48 minus the value at Baseline.

Time frame: Baseline and Week 2, 12, 24, 48

Population: ITT-E Population. Only those participants contributing data at the indicated time points were analyzed. The number of participants analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1 week prior PI therapy with no more than 3 PIs before trial enrollment) participants.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 2; n=0, 32NA Percentage of TLs that are CD4+ cells
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 48; n=0, 29NA Percentage of TLs that are CD4+ cells
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 2; n=13, 413 Percentage of TLs that are CD4+ cells
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 12; n=19, 466 Percentage of TLs that are CD4+ cells
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 24; n=18, 447 Percentage of TLs that are CD4+ cells
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 48; n=17, 428 Percentage of TLs that are CD4+ cells
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 12; n=0, 31NA Percentage of TLs that are CD4+ cells
FPV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 24; n=0, 34NA Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 48; n=0, 296 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 48; n=17, 4210 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 2; n=0, 322 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 2; n=13, 411 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 24; n=0, 345 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 12; n=19, 465 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-exp, Week 12; n=0, 313 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupChange From Baseline in the Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Weeks 2, 12, 24, and 48PI-naïve, Week 24; n=18, 448 Percentage of TLs that are CD4+ cells
Secondary

Cluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48

Blood samples of participants were collected for the measurement of CD4+ cell count. Observed analysis was used for the summary of proportion endpoints using viral load data. CD4+ cells are white blood cells that are important in fighting infection. HIV infects CD4+ cells, replicates in them, and destroys them. CD4+ cell count provides a measure of the status of the immune system and to what extent it is affected by HIV.

Time frame: Baseline and Weeks 2, 12, 24, and 48

Population: ITT-E Population. Only those participants contributing data at the indicated time points were analyzed. The number of participants analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1 week prior PI therapy with no more than 3 PIs before trial enrollment) participants.

ArmMeasureGroupValue (MEDIAN)Dispersion
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Baseline; n= 19, 49810 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 387.42
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Baseline; n= 0, 40NA Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 0
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 2; n= 0, 32NA Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 0
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 12; n= 19, 461040 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 606.25
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 12; n= 0, 31NA Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 0
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 2; n= 13, 41820 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 370.81
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 24; n= 0, 34NA Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 0
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 24; n= 18, 441260 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 482.92
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 48; n= 0, 29NA Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 0
FPV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 48; n= 18, 421080 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 611.28
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 48; n= 0, 29540 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 297.8
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Baseline; n= 0, 40440 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 562
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Baseline; n= 19, 49370 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 399.39
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 2; n= 13, 41450 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 575.73
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 12; n= 19, 46581 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 555.52
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 48; n= 18, 42670 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 568.2
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 2; n= 0, 32605 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 444.63
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 12; n= 0, 31720 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 379.84
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-exp, Week 24; n= 0, 34620 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 420.62
FPV/RTV Treatment GroupCluster of Differentiation Antigen 4 (CD4+) Cell Count at Baseline and at Weeks 2, 12, 24, and 48PI-naïve, Week 24; n= 18, 44609 Cells per cubic millimeter (cells/cu mm)Inter-Quartile Range 509.24
Secondary

Correlation Between Plasma APV Exposure and Plasma vRNA, CD4+ Cell Counts, and the Occurrence of Adverse Events

No formal analysis has been performed or is planned to correlate plasma APV PK with efficacy and safety outcomes.

Time frame: Week 48

Population: PK Population

Secondary

Median Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)

Blood samples of participants were collected to assess the decrease in the number of HIV-1 RNA. Change from Baseline at Weeks 2, 12, 24, and 48 was calculated as value at Week 2, 12, 24, and 48 minus the value at Baseline.

Time frame: Baseline and Weeks 2, 12, 24, and 48

Population: ITT-E Population. In the observed analysis, data are presented for the number of par. still enrolled in the study at a certain time point. The number of par. analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1 week prior PI therapy with no more than 3 PIs before trial enrollment) par.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 12; n=19, 46-3.04 log10/copies
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 24; n=18, 44-3.16 log10/copies
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 2; n=0, 32NA log10/copies
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 24; n=0, 35NA log10/copies
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 48; n=18, 44-3.02 log10/copies
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 12; n=0, 33NA log10/copies
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 48; n=0, 33NA log10/copies
FPV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 2; n=14, 39-1.91 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 48; n=0, 33-2.14 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 2; n=14, 39-1.84 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 2; n=0, 32-1.58 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 24; n=0, 35-2.28 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 12; n=19, 46-2.77 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 12; n=0, 33-2.23 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 24; n=18, 44-2.87 log10/copies
FPV/RTV Treatment GroupMedian Change From Plasma HIV-1 RNA (log10 Copies/mL) at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 48; n=18, 44-2.83 log10/copies
Secondary

Median Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)

Blood samples of participants were collected to assess the decrease in the number of HIV-1 RNA.

Time frame: Baseline and Weeks 2, 12, 24, and 48

Population: ITT-E Population. In the observed analysis, data are presented for the number of par. still enrolled in the study at a certain time point. The number of par. analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1 week prior PI therapy with no more than 3 PIs before trial enrollment) par.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Baseline; n=0, 39NA log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 12; n=19, 462.03 log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Baseline; n=20, 495.13 log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 12; n=0, 34NA log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 2; n=14, 393.27 log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 24; n=18, 441.85 log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 48; n=0, 33NA log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 24; n=0, 35NA log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 2; n=0, 33NA log10 copies/mL
FPV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 48; n=18, 441.85 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 48; n=0, 331.69 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 48; n=18, 441.69 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Baseline; n=20, 494.72 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Baseline; n=0, 394.53 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 2; n=14, 393.06 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 2; n=0, 333.04 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 12; n=19, 461.94 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 12; n=0, 342.20 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 24; n=18, 441.69 log10 copies/mL
FPV/RTV Treatment GroupMedian Plasma HIV-1 RNA (log10 Copies/mL) at Baseline and Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 24; n=0, 351.80 log10 copies/mL
Secondary

Number of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and Protease

A blood sample was drawn for par. remaining in the study after Week 48 and failing to respond to therapy, and the mutations present in the virus were identified. For each par., the mutations found at the time of failure were compared with any mutations found in the blood sample at baseline. New International AIDS Society-USA defined resistance mutations that developed at the time of failure were tabulated by drug class. VF, virologic failure; NRTI, nucleoside reverse transcriptase inhibitor; NNRTI, non-nucleoside reverse transcriptase inhibitor; PI, protease inhibitor. Par. are grouped by study arm and prior therapy experience.

Time frame: After Week 48 through Week 240

Population: VF: par. with failure to achieve plasma HIV-RNA \<400 copies/mL by Week 24; or confirmed HIV-RNA rebound to \>=400 copies/mL any time after achieving plasma HIV-RNA \<400 copies/mL and had evaluable viral isolate genotypic and/or phenotypic data. Only par. contributing viral genotype at both baseline and the indicated time of VF points were evaluable.

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I47IV0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I84I/V0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184V1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV PI Mutations1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L10F1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L33F0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V32I0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I62I/V0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation T215S/Y0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I85V1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NRTI Mutation1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Major HIV NNRTI Mutation0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation K103N0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV NNRTI Mutation0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M41L0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation V179D/E0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV Major PI Mutations1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation T74P1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46L1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184I0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V32I0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184I1 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation T74P0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I84I/V0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation V179D/E0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Major HIV NNRTI Mutation0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NRTI Mutation1 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV PI Mutations0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M41L0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L10F0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184V0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation K103N0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L33F0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46L0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I47IV0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I62I/V0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV NNRTI Mutation0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV Major PI Mutations0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I85V0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation T215S/Y0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I85V0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV PI Mutations2 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NRTI Mutation2 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M41L1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184I0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184V2 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation T215S/Y1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Major HIV NNRTI Mutation1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation K103N1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV NNRTI Mutation0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation V179D/E0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V32I1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46L0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I47IV1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation T74P0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I84I/V0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L10F0 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L33F1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I62I/V1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV Major PI Mutations1 Participants
Secondary

Number of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)

A blood sample was drawn for par. remaining in the study after Week 48 and failing to respond to therapy, and changes in DS for HIV isolated from the par. for each drug used in the study were assessed. The changes in DS detected by phenotypic assay in virus from the sample collected at the time of failure was compared with DS in the virus from the blood sample at baseline. Par. are grouped by study arm and prior therapy experience. DS is the state of HIV being susceptible to the antiretroviral agent (the virus can be inhibited by the drug). Reduced DS (i.e., HIV is resistant to the antiretroviral agent) can lead to treatment failure.

Time frame: Week 60 through Week 240

Population: VF: par. with failure to achieve plasma HIV-RNA \<400 copies/mL by Week 24; or confirmed HIV-RNA rebound to \>=400 copies/mL any time after achieving plasma HIV-RNA \<400 copies/mL and had evaluable viral isolate genotypic and/or phenotypic data. Only par. contributing viral phenotype at both baseline and the indicated time of VF points were evaluable

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir- boosted FosamprenavirNA Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NRTI1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Zidovudine0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Emtricitabine1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Abacavir0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NNRTI0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Unboosted Fosamprenavir1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Lamivudine1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Delaviridine0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Tipranavir0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Nelfinavir0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Efavirenz0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any PI1 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Didanosine0 Participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Nevirapine0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Lamivudine1 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any PI1 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Emtricitabine1 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir- boosted Fosamprenavir0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NRTI1 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Nelfinavir1 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Tipranavir0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Nevirapine0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Unboosted FosamprenavirNA Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Zidovudine0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NNRTI0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Abacavir0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Delaviridine0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Efavirenz0 Participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Didanosine1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Tipranavir1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NRTI3 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Abacavir1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Didanosine3 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Emtricitabine3 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Lamivudine2 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Zidovudine1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NNRTI1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Delaviridine1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Efavirenz1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Nevirapine1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Any PI3 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Unboosted FosamprenavirNA Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir- boosted Fosamprenavir1 Participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) Since the Week 48 Analysis With Treatment-emergent Reductions in Drug Susceptibility (DS)Nelfinavir0 Participants
Secondary

Number of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and Protease

A blood sample was drawn for par. failing to respond to therapy, and the mutations present in the virus were identified. For each par., the mutations found at the time of failure were compared with any mutations found in the blood sample at baseline. New International AIDS Society-USA defined resistance mutations that developed at the time of failure were tabulated by drug class. VF, virologic failure; NRTI, nucleoside reverse transcriptase inhibitor; NNRTI, non-nucleoside reverse transcriptase inhibitor; PI, protease inhibitor. Par. are grouped by study arm and prior therapy experience.

Time frame: Week 48

Population: VF: par. with failure to achieve plasma HIV-RNA \<400 copies/mL by Week 24; or confirmed HIV-RNA rebound to \>=400 copies/mL any time after achieving plasma HIV-RNA \<400 copies/mL and had evaluable viral isolate genotypic and/or phenotypic data. Only par. contributing viral genotype at both baseline and the indicated time of VF points were evaluable.

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation V179D/E0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I84I/V0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV Major PI Mutations2 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/I0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K20K/R1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53F/L1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L10L/F0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV PI Mutations2 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82F/I0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/L1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I85I/V0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I62I/V0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184V3 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation Q58Q/E1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K43K/T0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/L1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I50I/V1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation A71I/V0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NRTI Mutation3 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NNRTI Mutation0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L33L/F1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M/V0 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82A/V1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53L1 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I62I/V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53F/L0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82F/I0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L10L/F0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I84I/V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NRTI Mutation0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV PI Mutations0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53L0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NNRTI Mutation0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation V179D/E0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV Major PI Mutations0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I85I/V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/I0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation Q58Q/E0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K43K/T0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/L0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation A71I/V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I50I/V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82A/V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/L0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L33L/F0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M/V0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K20K/R0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NNRTI Mutation0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation V179D/E0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53F/L0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NRTI Mutation0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184V0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV Major PI Mutations1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/I1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/L0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I50I/V1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/L0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M/V1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation Q58Q/E0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82A/V0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82F/I0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I84I/V1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV PI Mutations1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L10L/F1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K20K/R0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L33L/F1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K43K/T0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53L0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I62I/V1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation A71I/V1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I85I/V1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K20K/R0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/L0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I85I/V1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I50I/V1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/I0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation A71I/V0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV Major PI Mutations1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53F/L0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NNRTI Mutation1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NRTI mutation M184V1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation M46M/L0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation F53L0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny HIV NRTI Mutation1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation K43K/T1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV NNRTI Mutation V179D/E1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation I62I/V0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseAny Minor HIV PI Mutations1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I84I/V0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82F/I1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L33L/F0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseMinor HIV PI Mutation L10L/F0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation V82A/V0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation I54I/M/V0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent HIV Genotypic Resistance in Reverse Transcriptase and ProteaseHIV Major PI Mutation Q58Q/E0 participants
Secondary

Number of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)

A blood sample was drawn for par. failing to respond to therapy, and changes in DS for HIV isolated from the par. for each drug used in the study were assessed. The changes in DS detected by phenotypic assay in virus from the sample collected at the time of failure was compared with DS in the virus from the blood sample at baseline. Par. are grouped by study arm and prior therapy experience. DS is the state of HIV being susceptible to the antiretroviral agent (the virus can be inhibited by the drug). Reduced DS (i.e., HIV is resistant to the antiretroviral agent) can lead to treatment failure.

Time frame: Baseline through 48 Weeks

Population: VF: par. with failure to achieve plasma HIV-RNA \<400 copies/mL by Week 24; or confirmed HIV-RNA rebound to \>=400 copies/mL any time after achieving plasma HIV-RNA \<400 copies/mL and had evaluable viral isolate genotypic and/or phenotypic data. Only par. contributing viral phenotype at both baseline and the indicated time of VF points were evaluable

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NRTI3 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Didanosine3 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Unboosted Fosamprenavir2 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Lamivudine3 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Emtricitabine3 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir- boosted FosamprenavirNA participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir2 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Abacavir1 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any PI2 participants
FPV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NNRTI0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Emtricitabine0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir- boosted Fosamprenavir0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Abacavir0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Didanosine0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Unboosted FosamprenavirNA participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NRTI0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Lamivudine0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NNRTI0 participants
FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any PI0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Lamivudine0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NRTI0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Abacavir0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any PI1 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NNRTI0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Unboosted FosamprenavirNA participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Emtricitabine0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Didanosine0 participants
PI Naïve, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir- boosted Fosamprenavir1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any PI1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NRTI2 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Abacavir0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Emtricitabine1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Lamivudine1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Any NNRTI0 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Unboosted FosamprenavirNA participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Ritonavir- boosted Fosamprenavir1 participants
PI Experienced, ART Experienced, FPV/RTV Treatment GroupNumber of Confirmed Virologic Failure Participants (Par.) With Treatment-emergent Reductions in Drug Susceptibility (DS)Didanosine1 participants
Secondary

Number of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)

Blood samples of participants were collected to measure plasma HIV-1 RNA concentrations. PI-exp = PI-experienced. Viral load, measured in RNA copies per milliliter of plasma, is an efficacy measure for antiretroviral drugs. In the Missing, Switch, or Discontinuation = Failure (MSD=F) analysis, participants who had missing data at or had discontinued the study prior to a certain time point or had changed their background antiretroviral regimen are classified as non-responders.

Time frame: Baseline and Weeks 2, 12, 24, and 48

Population: Intent-to-Treat Exposed (ITT-E) Population. Only those par. contributing data at the indicated time points were analyzed. The number of par. analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1week prior PI therapy with no more than 3 PIs before trial enrollment) par.

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Baseline; n=20, 490 participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 12; n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 2; n=20, 493 participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 24; n=20, 4913 participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 24; n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Baseline; n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 48; n=20, 4912 participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 12; n=20, 4913 participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 48; n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 2; n=0, 40NA participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 48; n=0, 4019 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Baseline; n=20, 490 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Baseline; n=0, 400 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 2; n=20, 499 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 2; n=0, 405 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 12; n=20, 4935 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 12; n=0, 4019 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 24; n=20, 4935 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-exp, Week 24; n=0, 4022 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Plasma HIV-1 Ribonucleic Acid (RNA) <400 Copies Per Milliliter at Baseline and Weeks 2,12, 24, and 48 (MSD=F)PI-naïve, Week 48; n=20, 4936 participants
Secondary

Number of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48

Blood samples of participants were collected to measure plasma HIV-1 RNA concentrations. PI-exp = PI-experienced.Virologic success was defined as plasma HIV-1 RNA \<400 copies/mL. Virologic failure: (1) HIV-1 RNA \>=400 copies/mL, (2) change of background antiretroviral treatment (ART), (3) discontinued study due to lack of efficacy, (4) discontinued study with last HIV-1 \>=400 copies/mL. No virologic data at Week 48 window: (a) discontinued study due to an adverse event or death, (b) discontinued study due to other reasons, (c) missing data during window but still on study.

Time frame: Week 48

Population: Intent-to-Treat Exposed (ITT-E) Population: par. with documented evidence of receiving \>=1 treatment dose. Only par. contributing data were analyzed. The number of par. analyzed is the sum of the PI-naïve (received \<1week's treatment with a PI) and -experienced (received \>1week prior PI therapy with no more than 3 PIs before trial enrollment) par.

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (2); n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, No V data at Week 48 (b); n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (4); n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, No V data at Week 48 (c); n=20, 490 participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (3); n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, No V data at Week 48 (c); n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, No V data at Week 48 (a); n=20, 490 participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, virological (V) success; n=20, 4912 participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, V failure (3); n=20, 491 participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V success; n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, No V data at Week 48 (a); n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, V failure (1); n=20, 494 participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve;, V failure (4); n=20, 491 participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (1); n=0, 40NA participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, No V data Week 48 (b); n=20, 490 participants
FPV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, V failure (2); n=20, 492 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, No V data Week 48 (b); n=20, 491 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (2); n=0, 407 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, V failure (3); n=20, 490 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (3); n=0, 400 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve;, V failure (4); n=20, 493 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (4); n=0, 403 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, No V data at Week 48 (a); n=20, 491 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, No V data at Week 48 (a); n=0, 401 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, V failure (2); n=20, 494 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, No V data at Week 48 (b); n=0, 400 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, No V data at Week 48 (c); n=20, 491 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, No V data at Week 48 (c); n=0, 402 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, virological (V) success; n=20, 4936 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V success; n=0, 4019 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-naïve, V failure (1); n=20, 493 participants
FPV/RTV Treatment GroupNumber of Participants (Par.) With Virological Outcome (Plasma HIV-1 Ribonucleic Acid [RNA] <400 Copies/mL) at Week 48PI-exp, V failure (1); n=0, 408 participants
Secondary

Number of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence Questionnaire

The PACTG Adherence Questionnaire records individual study drugs, the expected number of doses/24 hour period, and the number of doses missed in the 3 days prior to the study visit. Responses were summarized by age cohort, study drug, treatment regimen, and visit for exploratory analysis only.

Time frame: Weeks 2, 12, 24, and 48

Population: Safety Population. Only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, Total Population; n= 17, 5915 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, 2 to <6 years (yrs); n= 17, 1615 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, 6 to <12 yrs; n= 0, 25NA participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, 12 to 18 yrs; n= 0, 18NA participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, Total Population; n= 16, 5515 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, 2 to <6 yrs; n= 16, 1615 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, 6 to <12 yrs; n= 0, 24NA participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, 12 to 18 yrs; n= 0, 15NA participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, Total Population; n= 16, 5416 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, 2 to <6 yrs; n= 16, 1416 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, 6 to <12 yrs; n= 0, 24NA participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, 12 to 18 yrs; n= 0, 16NA participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, Total Population; n= 15, 5313 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, 2 to <6 yrs; n= 15, 1413 participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, 6 to <12 yrs; n= 0, 23NA participants
FPV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, 12 to 18 yrs; n= 0, 16NA participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, 12 to 18 yrs; n= 0, 169 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, Total Population; n= 17, 5949 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, Total Population; n= 16, 5443 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, 2 to <6 years (yrs); n= 17, 1615 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, Total Population; n= 15, 5342 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, 6 to <12 yrs; n= 0, 2522 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, 2 to <6 yrs; n= 16, 1411 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 2, 12 to 18 yrs; n= 0, 1812 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, 6 to <12 yrs; n= 0, 2320 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, Total Population; n= 16, 5545 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, 6 to <12 yrs; n= 0, 2423 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, 2 to <6 yrs; n= 16, 1614 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 48, 2 to <6 yrs; n= 15, 1413 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, 6 to <12 yrs; n= 0, 2420 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 24, 12 to 18 yrs; n= 0, 169 participants
FPV/RTV Treatment GroupNumber of Participants Reporting Perfect Adherence Over the 3 Days Prior to the Study Visits at Weeks 2, 12, 24, and 48 as Assessed by Study Coordinator Using the Pediatric AIDS Clinical Trials Group (PACTG) Adherence QuestionnaireWeek 12, 12 to 18 yrs; n= 0, 1511 participants
Secondary

Number of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)

Blood samples of participants were collected to assess the decrease in the number of HIV-1 RNA.

Time frame: Baseline and Weeks 2, 12, 24, and 48

Population: ITT-E Population. In the observed analysis, data are presented for the number of par. still enrolled in the study at a certain time point. The number of par. analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1 week prior PI therapy with no more than 3 PIs before trial enrollment) par.

ArmMeasureGroupValue (NUMBER)
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 12; n=0, 33NA participants
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 12; n=19, 4619 participants
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 24; n=0, 35NA participants
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 24; n=18, 4418 participants
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 48; n=18, 4417 participants
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 2; n=0, 32NA participants
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 48; n=0, 33NA participants
FPV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 2; n=14, 3913 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 48; n=0, 3324 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 12; n=0, 3326 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 24; n=18, 4441 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 2; n=14, 3935 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 2; n=0, 3222 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 12; n=19, 4641 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-exp, Week 24; n=0, 3529 participants
FPV/RTV Treatment GroupNumber of Participants With at Least a 1.0 log10 HIV-1 RNA Decrease From Baseline at Weeks 2, 12, 24, and 48 (Observed Analysis)PI-naïve, Week 48; n=18, 4440 participants
Secondary

Percentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48

Blood samples of participants were collected for the measurement of the percentage of total lymphocytes that are CD4+ cells. Observed analysis was used for the summary of proportion endpoints using viral load data.

Time frame: Baseline and Weeks 2, 12, 24, and 48

Population: ITT-E Population. Only those participants contributing data at the indicated time points were analyzed. The number of participants analyzed represents the sum of the PI-naïve (received \<1 week's treatment with a PI) and -experienced (received \>1 week prior PI therapy with no more than 3 PIs before trial enrollment) participants.

ArmMeasureGroupValue (MEDIAN)
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 12; n=19, 4627 Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 2; n=0, 32NA Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Baseline; n=19, 4919 Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 2; n=13, 4124 Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 24; n=18, 4431 Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 48; n=18, 4232 Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Baseline; n=0, 40NA Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 12; n=0, 31NA Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 24; n=0, 34NA Percentage of TLs that are CD4+ cells
FPV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 48; n=0, 29NA Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 24; n=0, 3423 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 48; n=18, 4229 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 12; n=0, 3123 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 48; n=0, 2924 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Baseline; n=19, 4921 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Baseline; n=0, 4024 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 2; n=13, 4123 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 12; n=19, 4625 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-exp, Week 2; n=0, 3222 Percentage of TLs that are CD4+ cells
FPV/RTV Treatment GroupPercentage of Total Lymphocytes (TLs) That Are CD4+ Cells at Baseline and Weeks 2, 12, 24, and 48PI-naïve, Week 24; n=18, 4428 Percentage of TLs that are CD4+ cells
Secondary

Plasma FPV AUC (0-τ)

The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.

Time frame: Week 48

Population: PK Population

Secondary

Plasma FPV CL/F Following Dosing Expressed in mg

The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.

Time frame: Week 48

Population: PK Population

Secondary

Plasma FPV CL/F Following Dosing Expressed in mg/kg

The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.

Time frame: Week 48

Population: PK Population

Secondary

Plasma FPV Cmax and Cτ

The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.

Time frame: Week 48

Population: PK Population

Secondary

Plasma FPV t1/2

The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.

Time frame: Week 48

Population: PK Population

Secondary

Plasma FPV Tmax

The majority of the FPV data were below the quantification limit. Therefore, plasma FPV PK parameters were not estimated.

Time frame: Week 48

Population: PK Population

Secondary

Plasma Ritonavir (RTV) AUC (0-τ)

Plasma samples were assayed for RTV concentrations using a validated assay. The GlaxoSmithKline (GSK) Department of Clinical Pharmacology Modeling and Simulation conducted pharmacokinetic (PK) analysis of the plasma RTV concentration-time data using a model-independent approach. As a measure of total drug exposure, the area under the plasma-concentration-versus-time curve over the dosing interval at steady-state (AUC\[0-τ\]), where τ is the length of the dosing interval, was calculated by the linear up/log down trapezoidal method.

Time frame: Week 48

Population: PK Population: all participants for whom a plasma PK sample was analyzed. Participants in the FPV arm did not take RTV; hence, they were not analyzed for this outcome measure. In the FPV/RTV arm, only those participants contributing data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV/RTV Treatment GroupPlasma Ritonavir (RTV) AUC (0-τ)2 to <6 yrs, 3 mg/kg BID; n=0, 103.98 hr*µg/mL
FPV/RTV Treatment GroupPlasma Ritonavir (RTV) AUC (0-τ)6 to <12 yrs, 3 mg/kg BID; n=0, 127.13 hr*µg/mL
FPV/RTV Treatment GroupPlasma Ritonavir (RTV) AUC (0-τ)6 to <12 yrs, 100 mg BID; n=0, 66.46 hr*µg/mL
FPV/RTV Treatment GroupPlasma Ritonavir (RTV) AUC (0-τ)12 to 18 yrs, 3 mg/kg BID; n=0, 15.74 hr*µg/mL
FPV/RTV Treatment GroupPlasma Ritonavir (RTV) AUC (0-τ)12 to 18 yrs, 100 mg BID; n=0, 156.13 hr*µg/mL
Secondary

Plasma RTV CL/F Following Dosing Expressed in mg

Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated as dose/AUC(0-τ).

Time frame: Week 48

Population: PK Population. Participants in the FPV arm did not take RTV; hence, they were not analyzed for this outcome measure. In the FPV/RTV arm, only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg2 to <6yrs, 3 mg/kg BID; n=0, 10195 mL/min
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg6 to <12 yrs, 3 mg/kg BID; n=0, 12190 mL/min
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg6 to <12 yrs, 100 mg/kg BID; n=0, 6258 mL/min
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg12 to 18 yrs, 3 mg/kg BID; n=0, 1279 mL/min
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg12 to 18 yrs, 100 mg BID; n=0, 15272 mL/min
Secondary

Plasma RTV CL/F Following Dosing Expressed in mg/kg

Apparent clearance of drug from plasma following extravascular administration (CL/F) was calculated using the formulation: RTV Dose in mg/kg units divided by AUC(0-τ). Normalizing CL/F for bodyweight allows for comparison of CL/F across populations.

Time frame: Week 48

Population: PK Population. Participants in the FPV arm did not take RTV; hence, they were not analyzed for this outcome measure. In the FPV/RTV arm, only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 100 mg/kg BID; n=0, 125.94 mL/min/kg
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg/kg2 to <6yrs, 3 mg/kg BID; n=0, 1012.9 mL/min/kg
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg/kg6 to <12 yrs, 3 mg/kg BID; n=0, 126.81 mL/min/kg
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 3 mg/kg BID; n=0, 18.61 mL/min/kg
FPV/RTV Treatment GroupPlasma RTV CL/F Following Dosing Expressed in mg/kg12 to 18 yrs, 100 mg BID; n=0, 155.59 mL/min/kg
Secondary

Plasma RTV Cmax

The maximum concentration at steady state (Cmax) was measured.

Time frame: Week 48

Population: PK Population. Participants in the FPV arm did not take RTV; hence, they were not analyzed for this outcome measure. In the FPV/RTV arm, only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV/RTV Treatment GroupPlasma RTV Cmax2 to <6 yrs, 3 mg/kg BID; n=0, 100.633 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cmax6 to <12 yrs, 3 mg/kg BID; n=0, 141.100 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cmax6 to <12.yrs, 100 mg BID; n=0, 60.980 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cmax12 to 18 yrs, 3 mg/kg BID; n=0, 30.750 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cmax12 to 18 yrs, 100 mg BID; n=0, 161.06 µg/mL
Secondary

Plasma RTV Cτ

The plasma concentration at the end of the dosing interval at steady-state (Cτ) was measured.

Time frame: Week 48

Population: PK Population. Participants in the FPV arm did not take RTV; hence, they were not analyzed for this outcome measure. In the FPV/RTV arm, only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV/RTV Treatment GroupPlasma RTV Cτ2 to <6 yrs, 3 mg/kg BID; n=0, 160.224 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cτ6 to <12 yrs, 3 mg/kg BID; n=0, 240.297 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cτ6 to <12 yrs, 100 mg BID; n=0, 100.228 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cτ12 to 18 yrs, 3 mg/kg BID; n=0, 60.263 µg/mL
FPV/RTV Treatment GroupPlasma RTV Cτ12 to 18 yrs, 100 mg BID; n=0, 410.220 µg/mL
Secondary

Plasma RTV t1/2

alf-life (t1/2) is calculated as loge2/λz. The apparent terminal phase rate constant (λz) is the slope of the terminal portion of the logarithmically transformed concentration-time data as estimated by linear regression.

Time frame: Week 48

Population: PK Population. Participants in the FPV arm did not take RTV; hence, they were not analyzed for this outcome measure. In the FPV/RTV arm, only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV/RTV Treatment GroupPlasma RTV t1/212 to 18 yrs, 3 mg/kg BID; n=0, 12.84 hours
FPV/RTV Treatment GroupPlasma RTV t1/212 to 18 yrs, 100 mg BID; n=0, 143.64 hours
FPV/RTV Treatment GroupPlasma RTV t1/22 to <6 yrs, 3 mg/kg BID; n=0, 103.43 hours
FPV/RTV Treatment GroupPlasma RTV t1/26 to <12 yrs, 3 mg/kg BID; n=0, 113.39 hours
FPV/RTV Treatment GroupPlasma RTV t1/26 to <12 yrs, 100 mg BID; n=0, 53.97 hours
Secondary

Plasma RTV Tmax

The time to reach the maximum concentration (Cmax) at steady state is defined as (tmax).

Time frame: Week 48

Population: PK Population: all participants for whom a plasma PK sample was analyzed. Participants in the FPV arm did not take RTV; hence, they were not analyzed for this outcome measure. In the FPV/RTV arm, only those participants contributing data at the indicated time points were analyzed.

ArmMeasureGroupValue (MEDIAN)
FPV/RTV Treatment GroupPlasma RTV Tmax2 to <6 yrs, 3 mg/kg BID; n=0, 103.92 hours
FPV/RTV Treatment GroupPlasma RTV Tmax6 to <12 yrs, 3 mg/kg BID; n=0, 144.00 hours
FPV/RTV Treatment GroupPlasma RTV Tmax6 to <12 yrs, 100 mg BID; n=0, 64.01 hours
FPV/RTV Treatment GroupPlasma RTV Tmax12 to 18 yrs, 3 mg/kg BID; n=0, 35.92 hours
FPV/RTV Treatment GroupPlasma RTV Tmax12 to 18 yrs, 100 mg BID; n=0, 163.96 hours

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026