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A Study of an Investigational Regimen Combining FDA Approved HIV Drugs in HIV-Infected Subjects

See Detailed Description.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00363142
Enrollment
211
Registered
2006-08-15
Start date
2006-05-31
Completion date
2008-06-30
Last updated
2010-11-05

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

Conditions

HIV Infection, Infection, Human Immunodeficiency Virus

Keywords

HIV-1 LEXIVA Ritonavir Once-daily

Brief summary

This is a 24-week study to evaluate the efficacy and safety of a once-daily ritonavir-boosted fosamprenavir regimen (1400mg/100mg QD) to a 200mg ritonavir-boosted fosamprenavir regimen administered either twice-daily or once-daily.

Detailed description

A Phase IIIB, randomized, open-label, parallel group, multi-center, non-inferiority, 24-week study to evaluate the safety, efficacy and tolerability of switching from a 200mg ritonavir-boosted regimen of LEXIVA (700mg/100mg BID or 1400mg/200mg QD) to a once-daily, 100mg ritonavir-boosted regimen of LEXIVA (1400mg/100mg QD)

Interventions

DRUGHalf-boosted Fosamprenavir

Once daily, reduced dose ritonavir-boosted fosamprenavir

DRUGFull Boosted Fosamprenavir

Full ritonavir-boosted fosamprenavir

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Subjects with HIV-1 infection. * Are willing and able to understand and provide written consent prior to participation in this study.

Exclusion criteria

* Are pregnant or breastfeeding. * Have an active AIDS condition, pancreatitis, poor kidney function, or clinically relevant hepatitis. * Have certain medical conditions that may make participation unsafe. * Take medication that may interact with the study medication. * Have a history of allergy to any of the study drugs or any excipients therein. * Other inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Not Meeting the Definition of Virologic Failure at or Prior to Week 24Week 24Virologic failure was defined as two consecutive plasma HIV-1 RNA measures greater than 400 copies/milliliter (mL) separated by at least 2 to 4 week. The percentage of participants not meeting the virologic failure definition was estimated with stratification by the six randomization strata using Mantel-Haenszel weights and the missing/discontinuation equals failure (MD=F) analysis. Missing/discontinuation values were considered failures.

Secondary

MeasureTime frameDescription
Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL at Week 24, TLOVR AnalysisWeek 24A blood sample was drawn to determine the amount of plasma HIV-1 RNA virus in copies/mL at week 24. The percentage of participants plasma with HIV-1 RNA \<50 copies/mL at Week 24 were determined by the TLOVR algorithm with stratification by the six randomization strata.
Mean Change From Baseline of log10 Copies/mL Plasma HIV-1 RNA Levels at Week 24, Observed AnalysisBaseline and Week 24A blood sample was drawn to determine the amount of plasma HIV-1 RNA virus in copies/mL at week 24. Change from baseline was defined as plasma HIV-1 RNA level at Week 24 minus plasma HIV-1 RNA level at baseline.
Median Change From Baseline of CD4+ Cell Count at Week 24, Observed AnalysisBaseline and Week 24A blood sample was drawn to determine the CD4+ cell count at week 24. Change from baseline was defined as CD4+ cell count at Week 24 minus CD4+ cell count at baseline.
Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Baseline through Week 24The number of participants who prematurely discontinued study drug due to adverse events was tabulated. Data are summarized by individual adverse event. Adverse events were defined as 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.
Percentage of Participants With Plasma Human Immunodeficiency Virus, Type 1, Ribonucleic Acid (HIV-1 RNA) <400 Copies/mL at Week 24, Time to Loss of Virologic Response (TLOVR) AnalysisWeek 24A blood sample was drawn to determine the amount of plasma HIV-1 RNA virus in copies/mL at week 24. The percentage of participants with plasma HIV-1 RNA \<400 copies/mL at Week 24 were determined by the TLOVR algorithm with stratification by the six randomization strata.
Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24Baseline and Week 24A blood sample was drawn to determine the cholesterol, HDL, triglycerides levels at Week 24. Percent change in total blood cholesterol, HDL, and triglycerides was defined as (lipid level at Week 24 minus level at baseline) divided by level at baseline x 100%.
Percent Change From Baseline in Low Density Lipoprotein (LDL) at Week 24Baseline and Week 24A blood sample was drawn to determine the LDL level at Week 24. Percent change in LDL was defined as (LDL level at Week 24 minus level at baseline) divided by level at baseline x 100%.
Number of Participants With Plasma HIV-1 RNA Genotypic Mutations and Phenotypic Resistance at Time of Virologic Failure Not Present at BaselineBaseline through Week 24A blood sample was drawn for subjects failing to respond to therapy and the mutations present in the virus were identified. For each subject, the mutations found at the time of failure were compared with any mutations found in the blood sample at baseline. New mutations that developed at the time of virologic failure were tabulated by drug class.
Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Weeks 12 and 24Blood samples were drawn at weeks 12 and 24 to determine the plasma levels of APV and RTV. Concentration at the end of the dosing interval at steady state (Ctau) was presented.
Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Baseline through Week 24The number of participants who experienced any grades 2 to 4 adverse events was tabulated. Adverse events were graded based on the Division of Acquired Immunodeficiency Syndrome (AIDS) Table for Grading the Severity of Adult and Pediatric Adverse Events.

Countries

Puerto Rico, United States

Participant flow

Pre-assignment details

Participants were stratified prior to randomization according to baseline regimen (700 milligrams \[mg\]/100 mg twice a day \[BID\] or 1400 mg/200 mg once a day \[QD\]) and previous regimen (no other prior protease inhibitor \[PI\], non-boosted PI, or boosted PI). Results are reported for the 209 participants (out of 211 enrolled) receiving study drug.

Participants by arm

ArmCount
FPV/r100
Fosamprenavir (FPV)/ritonavir (RTV) 1400mg/100mg once a day (QD)
140
FPV/r200
FPV/RTV (either 700mg/100mg twice a day \[BID\] or 1400mg/200mg QD)
69
Total209

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event20
Overall StudyLack of Efficacy01
Overall StudyLost to Follow-up10
Overall StudyNon-compliance11
Overall StudyWithdrawal by Subject31

Baseline characteristics

CharacteristicTotalFPV/r100FPV/r200
Age Continuous44.7 years
STANDARD_DEVIATION 10
44.9 years
STANDARD_DEVIATION 10.52
44.3 years
STANDARD_DEVIATION 8.9
Ethnicity (NIH/OMB)
Hispanic or Latino
42 Participants31 Participants11 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
167 Participants109 Participants58 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
African American/African heritage
62 participants42 participants20 participants
Race/Ethnicity, Customized
American Indian/Alaskan native
1 participants1 participants0 participants
Race/Ethnicity, Customized
Asian - South East Asian
2 participants0 participants2 participants
Race/Ethnicity, Customized
Mixed race
1 participants1 participants0 participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
1 participants0 participants1 participants
Race/Ethnicity, Customized
Other
1 participants1 participants0 participants
Race/Ethnicity, Customized
White - Arabic/North African
2 participants0 participants2 participants
Race/Ethnicity, Customized
White - White/Caucasian/European
139 participants95 participants44 participants
Sex: Female, Male
Female
42 Participants33 Participants9 Participants
Sex: Female, Male
Male
167 Participants107 Participants60 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
18 / —6 / —
serious
Total, serious adverse events
7 / —1 / —

Outcome results

Primary

Percentage of Participants Not Meeting the Definition of Virologic Failure at or Prior to Week 24

Virologic failure was defined as two consecutive plasma HIV-1 RNA measures greater than 400 copies/milliliter (mL) separated by at least 2 to 4 week. The percentage of participants not meeting the virologic failure definition was estimated with stratification by the six randomization strata using Mantel-Haenszel weights and the missing/discontinuation equals failure (MD=F) analysis. Missing/discontinuation values were considered failures.

Time frame: Week 24

Population: Intent-to-Treat Exposed (ITT-E) Population. Subjects who received at least one dose of investigational product.

ArmMeasureValue (NUMBER)
FPV/r100Percentage of Participants Not Meeting the Definition of Virologic Failure at or Prior to Week 2492.1 Percentage of participants
FPV/r200Percentage of Participants Not Meeting the Definition of Virologic Failure at or Prior to Week 2494.2 Percentage of participants
95% CI: [-9.36, 5.12]
Secondary

Mean Change From Baseline of log10 Copies/mL Plasma HIV-1 RNA Levels at Week 24, Observed Analysis

A blood sample was drawn to determine the amount of plasma HIV-1 RNA virus in copies/mL at week 24. Change from baseline was defined as plasma HIV-1 RNA level at Week 24 minus plasma HIV-1 RNA level at baseline.

Time frame: Baseline and Week 24

Population: ITT-E Population - Observed Analysis, available data from those subjects who had values at baseline and at Week 24

ArmMeasureValue (MEAN)Dispersion
FPV/r100Mean Change From Baseline of log10 Copies/mL Plasma HIV-1 RNA Levels at Week 24, Observed Analysis-0.015 log10 copies/mLStandard Deviation 0.388
FPV/r200Mean Change From Baseline of log10 Copies/mL Plasma HIV-1 RNA Levels at Week 24, Observed Analysis-0.022 log10 copies/mLStandard Deviation 0.13
Secondary

Median Change From Baseline of CD4+ Cell Count at Week 24, Observed Analysis

A blood sample was drawn to determine the CD4+ cell count at week 24. Change from baseline was defined as CD4+ cell count at Week 24 minus CD4+ cell count at baseline.

Time frame: Baseline and Week 24

Population: ITT-E Population - Observed Analysis, available data from those subjects who had values at baseline and at Week 24

ArmMeasureValue (MEDIAN)Dispersion
FPV/r100Median Change From Baseline of CD4+ Cell Count at Week 24, Observed Analysis11.5 cells/mm3Full Range 0.073
FPV/r200Median Change From Baseline of CD4+ Cell Count at Week 24, Observed Analysis15 cells/mm3Full Range 0.194
Secondary

Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24

The number of participants who prematurely discontinued study drug due to adverse events was tabulated. Data are summarized by individual adverse event. Adverse events were defined as 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: Baseline through Week 24

Population: Safety Population: all randomized subjects who consumed at least one dose of study drug and was analyzed according to the treatment received.

ArmMeasureGroupValue (NUMBER)
FPV/r100Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Any event2 participants
FPV/r100Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Metastatic neoplasms1 participants
FPV/r100Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Aspartate aminotransferase increased1 participants
FPV/r100Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Central nervous system lesion1 participants
FPV/r100Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Alanine aminotransferase increased1 participants
FPV/r200Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Central nervous system lesion0 participants
FPV/r200Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Alanine aminotransferase increased0 participants
FPV/r200Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Any event0 participants
FPV/r200Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Aspartate aminotransferase increased0 participants
FPV/r200Number of Participants Who Discontinued Treatment Due to Adverse Events Through Week 24Metastatic neoplasms0 participants
Secondary

Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24

The number of participants who experienced any grades 2 to 4 adverse events was tabulated. Adverse events were graded based on the Division of Acquired Immunodeficiency Syndrome (AIDS) Table for Grading the Severity of Adult and Pediatric Adverse Events.

Time frame: Baseline through Week 24

Population: Safety Population

ArmMeasureGroupValue (NUMBER)
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Bronchitis3 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Nausea3 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Sinusitis3 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Upper respiratory tract infection4 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Blood glucose increased3 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Insomnia0 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Any event48 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Diarrhea8 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Depression1 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Headache1 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Influenza1 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Low density lipoprotein increased3 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Nasopharyngitis3 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Otitis media1 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Back pain0 participants
FPV/r100Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Hypercholesterolemia0 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Insomnia2 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Bronchitis3 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Depression2 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Nausea1 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Nasopharyngitis0 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Sinusitis1 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Headache2 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Upper respiratory tract infection0 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Back pain2 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Blood glucose increased0 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Hypercholesterolemia2 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Influenza2 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Otitis media2 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Any event24 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Low density lipoprotein increased0 participants
FPV/r200Number of Participants With Grade 2-4 Adverse Events Occurring in Greater Than or Equal to 2% of Subjects Through Week 24Diarrhea2 participants
Secondary

Number of Participants With Plasma HIV-1 RNA Genotypic Mutations and Phenotypic Resistance at Time of Virologic Failure Not Present at Baseline

A blood sample was drawn for subjects failing to respond to therapy and the mutations present in the virus were identified. For each subject, the mutations found at the time of failure were compared with any mutations found in the blood sample at baseline. New mutations that developed at the time of virologic failure were tabulated by drug class.

Time frame: Baseline through Week 24

Population: Participants in the ITT-E Population who met the virologic failure definition

ArmMeasureValue (NUMBER)
FPV/r200Number of Participants With Plasma HIV-1 RNA Genotypic Mutations and Phenotypic Resistance at Time of Virologic Failure Not Present at Baseline0 Participants
Secondary

Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL at Week 24, TLOVR Analysis

A blood sample was drawn to determine the amount of plasma HIV-1 RNA virus in copies/mL at week 24. The percentage of participants plasma with HIV-1 RNA \<50 copies/mL at Week 24 were determined by the TLOVR algorithm with stratification by the six randomization strata.

Time frame: Week 24

Population: ITT-E Population

ArmMeasureGroupValue (NUMBER)
FPV/r100Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL at Week 24, TLOVR AnalysisHIV-1 RNA greater than or equal to 50 copies/mL17.1 Percentage of participants
FPV/r100Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL at Week 24, TLOVR AnalysisPlasma HIV-1 RNA <50 copies/mL82.9 Percentage of participants
FPV/r200Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL at Week 24, TLOVR AnalysisHIV-1 RNA greater than or equal to 50 copies/mL15.4 Percentage of participants
FPV/r200Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL at Week 24, TLOVR AnalysisPlasma HIV-1 RNA <50 copies/mL84.6 Percentage of participants
Secondary

Percentage of Participants With Plasma Human Immunodeficiency Virus, Type 1, Ribonucleic Acid (HIV-1 RNA) <400 Copies/mL at Week 24, Time to Loss of Virologic Response (TLOVR) Analysis

A blood sample was drawn to determine the amount of plasma HIV-1 RNA virus in copies/mL at week 24. The percentage of participants with plasma HIV-1 RNA \<400 copies/mL at Week 24 were determined by the TLOVR algorithm with stratification by the six randomization strata.

Time frame: Week 24

Population: ITT-E Population

ArmMeasureGroupValue (NUMBER)
FPV/r100Percentage of Participants With Plasma Human Immunodeficiency Virus, Type 1, Ribonucleic Acid (HIV-1 RNA) <400 Copies/mL at Week 24, Time to Loss of Virologic Response (TLOVR) AnalysisPlasma HIV-1 RNA <400 copies/mL92 Percentage of participants
FPV/r100Percentage of Participants With Plasma Human Immunodeficiency Virus, Type 1, Ribonucleic Acid (HIV-1 RNA) <400 Copies/mL at Week 24, Time to Loss of Virologic Response (TLOVR) AnalysisHIV-1 RNA greater than or equal to 400 copies/mL8 Percentage of participants
FPV/r200Percentage of Participants With Plasma Human Immunodeficiency Virus, Type 1, Ribonucleic Acid (HIV-1 RNA) <400 Copies/mL at Week 24, Time to Loss of Virologic Response (TLOVR) AnalysisPlasma HIV-1 RNA <400 copies/mL94.2 Percentage of participants
FPV/r200Percentage of Participants With Plasma Human Immunodeficiency Virus, Type 1, Ribonucleic Acid (HIV-1 RNA) <400 Copies/mL at Week 24, Time to Loss of Virologic Response (TLOVR) AnalysisHIV-1 RNA greater than or equal to 400 copies/mL5.8 Percentage of participants
Secondary

Percent Change From Baseline in Low Density Lipoprotein (LDL) at Week 24

A blood sample was drawn to determine the LDL level at Week 24. Percent change in LDL was defined as (LDL level at Week 24 minus level at baseline) divided by level at baseline x 100%.

Time frame: Baseline and Week 24

Population: Safety Population

ArmMeasureValue (MEDIAN)
FPV/r100Percent Change From Baseline in Low Density Lipoprotein (LDL) at Week 240 Percent change
FPV/r200Percent Change From Baseline in Low Density Lipoprotein (LDL) at Week 242.1 Percent change
Secondary

Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24

A blood sample was drawn to determine the cholesterol, HDL, triglycerides levels at Week 24. Percent change in total blood cholesterol, HDL, and triglycerides was defined as (lipid level at Week 24 minus level at baseline) divided by level at baseline x 100%.

Time frame: Baseline and Week 24

Population: Safety Population

ArmMeasureGroupValue (MEDIAN)
FPV/r100Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24Total cholesterol-0.5 Percent change
FPV/r100Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24HDL-2.1 Percent change
FPV/r100Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24Triglycerides-13.5 Percent change
FPV/r200Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24Total cholesterol0.7 Percent change
FPV/r200Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24HDL0 Percent change
FPV/r200Percent Change From Baseline in Total Cholesterol, High Density Lipoprotein (HDL), and Triglycerides at Week 24Triglycerides-0.6 Percent change
Secondary

Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24

Blood samples were drawn at weeks 12 and 24 to determine the plasma levels of APV and RTV. Concentration at the end of the dosing interval at steady state (Ctau) was presented.

Time frame: Weeks 12 and 24

Population: PK Parameter (Ctau) Population - Participants in the ITT-E Population who underwent PK sampling and had evaluable APV or RTV Ctau data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FPV/r100Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 12 APV Ctau1.38 micrograms/mL
FPV/r100Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 24 RTV Ctau0.022 micrograms/mL
FPV/r100Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 12 RTV Ctau0.026 micrograms/mL
FPV/r100Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 24 APV Ctau1.27 micrograms/mL
FPV/r200Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 24 APV Ctau1.49 micrograms/mL
FPV/r200Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 12 RTV Ctau0.050 micrograms/mL
FPV/r200Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 12 APV Ctau1.28 micrograms/mL
FPV/r200Steady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 24 RTV Ctau0.056 micrograms/mL
FPV/RTV 700/100 mg BIDSteady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 12 APV Ctau1.35 micrograms/mL
FPV/RTV 700/100 mg BIDSteady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 24 APV Ctau2.38 micrograms/mL
FPV/RTV 700/100 mg BIDSteady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 12 RTV Ctau0.228 micrograms/mL
FPV/RTV 700/100 mg BIDSteady-State Plasma Levels of Amprenavir (APV) and Ritonavir (RTV) Ctau at Weeks 12 and 24Week 24 RTV Ctau0.203 micrograms/mL

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