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Tenofovir Disoproxil Fumarate/Emtricitabine/Efavirenz Versus Combivir/Efavirenz in Antiretroviral-Naive HIV-1 Infected Subjects

A Phase 3, Randomized, Multicenter Study of the Treatment of Antiretroviral-Naive HIV-1 Infected Subjects Comparing Tenofovir Disoproxil Fumarate and Emtricitabine in Combination With Efavirenz vs Combivir (Lamivudine/Zidovudine) and Efavirenz

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00112047
Enrollment
517
Registered
2005-05-30
Start date
2003-07-31
Completion date
2009-06-30
Last updated
2010-10-13

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

Conditions

HIV Infections

Keywords

Human Immunodeficiency Virus

Brief summary

The purpose of Study GS-01-934 was to assess the efficacy and safety of two simplified antiretroviral treatment (ART) regimens in ART-naive, human immunodeficiency virus, type 1 (HIV-1) infected participants. The primary objective of the study was to assess noninferiority of emtricitabine (FTC) and tenofovir disoproxil fumarate (tenofovir DF; TDF) in combination with efavirenz (EFV) relative to Combivir (CBV) in combination with EFV in the treatment of HIV-1 infected ART-naive participants, determined by the achievement and maintenance of confirmed HIV-1 ribonucleic acid (RNA) \< 400 copies/mL (c/mL) through Week 48, as defined by the United States (US) Food and Drug Administration (FDA) time-to-loss-of-virologic-response (TLOVR) algorithm.

Detailed description

This study was originally planned as a 48-week, Phase 3, randomized, open-label, multicenter study comparing EFV+FTC+TDF (administered as the individual component drugs) versus CBV (lamivudine/zidovudine) + EFV to assess the efficacy and safety of both treatments in ART-Naive, HIV-1 infected participants. The regimen of CBV (administered twice daily) + EFV (administered once daily) served as the active control treatment and was compared with the regimen of EFV+FTC+TDF; each component drug in the EFV+FTC+TDF regimen was administered once daily. Week 48 to Week 96: The study was extended and continued to evaluate the efficacy and safety of the two regimens up to a total treatment duration of 96 weeks. The regimen of EFV+FTC+TDF continued to be dosed as the component drugs (EFV + FTC + TDF), once daily, without regard to meals. The regimen of CBV+EFV was dosed as 2 pills (CBV, twice daily in the morning without regard to meals) + EFV (once daily, without regard to meals). Week 96 to Week 144: A further study extension changed the 3-pill EFV+FTC+TDF regimen to a 2-pill regimen of EFV + Truvada (\[TVD\]: a fixed-dose combination pill containing FTC/TDF), once daily without regard to meals, and continued to evaluate the efficacy and safety of the two regimens for a further 48 weeks up to a total study treatment duration of 144 weeks. The regimen of CBV+EFV continued to be dosed as 2 pills (CBV, twice daily in the morning without regard to meals) + EFV (once daily, without regard to meals). Week 144 to end of study (Week 240): A final study extension provided all study participants from both treatment regimens the option to switch their respective treatments to the 1-pill regimen of for a further 96 weeks up to a total study duration of 240 weeks (5 years) to further assess the efficacy and safety of ART regimen simplification. At sites in France, the study was extended by a further 48 weeks (Year 6) or until ATR became commercially available (whichever happened first); once ATR became commercially available in France participants were not required to complete the full 288 weeks of the study.

Interventions

Capsule containing 200 mg FTC, taken once daily, for 96 weeks

Tablet containing 300 mg TDF, taken once daily, for 96 weeks

Tablet containing 600 mg EFV, taken once daily, for 96 weeks

DRUGFTC/TDF

Fixed-dose combination tablet containing FTC 200 mg/TDF 300 mg, once daily, from Week 96 to 144

DRUGFTC/TDF/EFV

Fixed-dose combination tablet containing FTC 200 mg/TDF 300 mg/EFV 600 mg, taken once daily, from Week 144 to 240

DRUGLamivudine/zidovudine

Fixed-dose combination tablet containing lamivudine 150 mg/zidovudine 300 mg, taken twice daily, for 240 weeks

Sponsors

Gilead Sciences
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

Participants must have met all inclusion criteria within 28 days prior to randomization unless specified otherwise including: * Plasma HIV-1 RNA levels greater than 10,000 c/mL using Roche Amplicor HIV-1 Monitor Test Version 1.5 Standard * Adequate renal function: Calculated creatinine clearance greater than or equal to 50 mL/min according to the Cockcroft-Gault Formula. * Hepatic transaminases (aspartate aminotransferase \[AST\] and alanine aminotransferase \[ALT\]) 3 x upper limit of normal (ULN). * Total bilirubin less than or equal to 1.5 mg/dL. * Adequate hematologic function (absolute neutrophil count greater than or equal to 1,000/mm\^3; platelets greater than or equal to 50,000/mm\^3; hemoglobin greater than or equal to 8.0 g/dL). * Serum amylase less than or equal to 1.5 x ULN. * Serum phosphorus greater than or equal to 2.2 mg/dL. * Willingness to use effective contraception by both males and females while on study treatment and for 30 days following study drug completion. * Life expectancy greater than or equal to 1 year * The ability to understand and sign written informed consent form obtained prior to initiation of study procedures.

Exclusion criteria

Participants were not eligible for entry to the study if any of the following were met: * Prior treatment with any non-nucleoside reverse transcriptase inhibitor (NNRTI), nucleoside reverse transcriptase inhibitor (NRTI), or protease inhibitor (PI). * A new AIDS-defining condition diagnosed (exception CD4 criteria) within 30 days of baseline. * Receiving ongoing therapy with any of the following: nephrotoxic agents, probenecid, systemic chemotherapeutic agents, systemic corticosteroids, interleukin-2, drugs that interact with efavirenz. Administration of any of the above medications must be discontinued at least 30 days prior to baseline visit and for duration of study. * Pregnant or lactating participants. * Malignancy other than cutaneous Kaposi's sarcoma (KS) or basal cell carcinoma. Participants with biopsy-confirmed KS were eligible but must not have received any systemic therapy for KS within 30 days of baseline and not anticipated starting systemic therapy during the study. * Prior history of renal or bone disease. * Any other clinical condition prior to therapy that would make the participant unsuitable for the study or unable to comply with the dosing requirements in the opinion of the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 48 (Defined by the Food and Drug Administration [FDA] Time-to-Loss-of Virologic Response [TLOVR] Algorithm48 weeksParticipants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 48 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 48 visit (ie, the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 48 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV RNA levels \< 400 c/mL prior to Week 48 visit.

Secondary

MeasureTime frameDescription
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 48 (Defined by FDA TLOVR Algorithm)Week 48Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 48 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 48 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 48 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV RNA levels \< 50 c/mL prior to Week 48 visit.
Percentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 48.48 weeksThe percentage of participants with plasma HIV-1 RNA \< 400 c/mL at Week 48. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 400 c/mL (i.e., ITT missing or switch=failure analysis).
Percentage of Participants With HIV-1 RNA < 50 c/mL at Week 4848 WeeksThe percentage of participants with plasma HIV-1 RNA \< 50 c/mL at Week 48. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 50 c/mL (i.e., ITT missing or switch=failure analysis).
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 48Baseline to 48 weeksTLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 400 c/mL or last HIV-1 RNA ≥ 400 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 400 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 48Baseline to 48 WeeksTLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.
Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 48Baseline to 48 WeeksParticipants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Change From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 48Study baseline to Week 48Change from study baseline to Week 48 in HIV-1 RNA in log10 scale (Week 48 HIV-1 RNA value in log10 scale minus study baseline HIV-1 RNA value in log10 scale).
Change From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 48Study baseline to Week 48Change from study baseline to Week 48 in CD4 cell count = Week 48 CD4 cell count value minus study baseline CD4 cell count value
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)96 WeeksParticipants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 96 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 96 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 96 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV RNA levels \< 400 c/mL prior to Week 96 visit.
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)Week 96Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 96 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 96 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 96 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV RNA levels \< 50 c/mL prior to Week 96 visit.
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 96Week 96TLOVR for participants with confirmed virologic response (2 consecutive HIV-1 RNA \< 400 c/mL) prior to study drug discontinuation, was the time to the earliest of premature study regimen discontinuation, or confirmed HIV-1 RNA \> 400 c/mL (2 consecutive HIV-1 RNA ≥ 400 c/mL, or the last HIV-1 RNA ≥ 400 c/mL followed by premature study regimen discontinuation due to loss to follow-up). Participants who did not achieve confirmed virologic response before premature study regimen discontinuation or last HIV-1 RNA, were assumed to have lost virologic response on Study Day 1.
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 96Week 96TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.
Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 96Week 96Participants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 96Week 96Participants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Change From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 96Study baseline to Week 96Change from study baseline to Week 96 in HIV-1 RNA in log10 scale (Week 96 HIV-1 RNA value in log10 scale minus study baseline HIV-1 RNA value in log10 scale).
Change From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 96Baseline to Week 96Change from study baseline to Week 96 in CD4 cell count = Week 96 CD4 cell count value minus study baseline CD4 cell count value
Change in Limb Fat (kg) From Week 48 to Week 96Week 48 to Week 96Change from Week 48 to Week 96 in limb fat = Week 96 limb fat value minus Week 48 limb fat value.
Change in Trunk Fat (kg) From Week 48 to Week 96Week 48 to Week 96Change from Week 48 to Week 96 in trunk fat = Week 96 trunk fat value minus Week 48 trunk fat value
Change in Total Body Fat (kg) From Week 48 to Week 9648 weeks to 96 weeksChange from Week 48 to Week 96 in total body fat = Week 96 total body fat value minus Week 48 total body fat value
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)144 weeksParticipants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug, except nevirapine in place of EFV, prior to Week 144 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 144 visit (i.e., the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 144 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV-1 RNA levels \< 400 c/mL prior to Week 144 visit.
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)Week 144Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL (c/mL) had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug, except nevirapine in place of EFV, prior to Week 144 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 144 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 144 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV-1 RNA levels \< 50 c/mL prior to Week 144 visit.
Percentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 144Week 144The percentage of participants with plasma HIV-1 RNA \< 400 c/mL at Week 144. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 400 c/mL (i.e., ITT missing or switch=failure analysis).
Percentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 144Week 144The percentage of participants with plasma HIV-1 RNA \< 50 c/mL at Week 144. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 50 c/mL (i.e., ITT missing or switch=failure analysis).
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 144Week 144TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 400 c/mL or last HIV-1 RNA ≥ 400 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 400 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 144Week 144TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.
Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) at Week 144Week 144Participants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) at Week 144Week 144Participants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Change From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 144Study baseline to Week 144Change from study baseline to Week 144 in HIV-1 RNA in log10 scale (Week 144 HIV-1 RNA value in log10 scale minus study baseline HIV-1 RNA value in log10 scale).
Change From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 144Baseline to Week 144Change from study baseline to Week 144 in CD4 cell count = Week 144 CD4 cell count value minus study baseline CD4 cell count value
Change in Limb Fat (kg) From Week 48 to Week 144Week 48 to Week 144Change from Week 48 to Week 144 in limb fat = Week 144 limb fat value minus Week 48 limb fat value
Change in Trunk Fat (kg) From Week 48 to Week 144Week 48 to Week 144Change from Week 48 to Week 144 in trunk fat = Week 144 trunk fat value minus Week 48 trunk fat value
Change in Total Body Fat (kg) From Week 48 to Week 144Week 48 to Week 144Change from Week 48 to Week 144 in total body fat = Week 144 total body fat value minus Week 48 total body fat value
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 240 (Atripla Week 96) Defined by the FDA TLOVR AlgorithmWeek 144 (Atripla baseline) to Week 240 (Atripla Week 96)Participants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 240 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 240 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 240 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV RNA levels \< 400 c/mL prior to Week 240 visit.
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 240 (Atripla Week 96) Defined by the FDA TLOVR AlgorithmWeek 144 (Atripla baseline) to Week 240 (Atripla Week 96)Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 240 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 240 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 240 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV RNA levels \< 50 c/mL prior to Week 240 visit.
Percentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 240 (Atripla Week 96)Week 240 (Atripla Week 96)The percentage of participants with plasma HIV-1 RNA \< 400 c/mL at Week 240. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 400 c/mL (i.e., ITT missing or switch=failure analysis).
Percentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 240 (Atripla Week 96)Week 240 (Atripla Week 96)The percentage of participants with plasma HIV-1 RNA \< 50 c/mL at Week 240. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 50 c/mL (i.e., ITT missing or switch=failure analysis).
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) From Week 144 (Atripla Baseline) Through Week 240 (Atripla Week 96)Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 400 c/mL or last HIV-1 RNA ≥ 400 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 400 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.
Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) From Week 144 (Atripla Baseline) Through Week 240 (Atripla Week 96)Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.
Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) Through Week 240 (Atripla Week 96)Week 240 (Atripla Week 96)Participants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) Through Week 240 (Atripla Week 96)Week 240 (Atripla Week 96)Participants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Change From Baseline in CD4 Cell Count (Cells/mm^3) at Week 240 (Atripla Week 96)Study/Atripla baseline to Week 240 (Atripla Week 96)Change from baseline to Week 240 (Atripla Week 96) in CD4 cell count = Week 240 (Atripla Week 96) CD4 cell count value minus baseline CD4 cell count value
Change in Limb Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Change from Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96) in limb fat = Week 240 (Atripla Week 96) limb fat value minus Week 144 (Atripla Baseline) limb fat value
Change in Trunk Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Change from Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96) in trunk fat = Week 240 (Atripla Week 96) trunk fat value minus Week 144 (Atripla Baseline) trunk fat value
Change in Total Body Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Change from Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96) in total body fat = Week 240 (Atripla Week 96) total body fat value minus Week 144 (Atripla Baseline) total body fat value
Treatment Satisfaction Questionnaire (Satisfaction With Convenience and Simplicity of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)Participants were asked: In general, how satisfied are you with the convenience and simplicity of your current treatment regimen? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).
Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 48Baseline to 48 WeeksParticipants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.
Treatment Satisfaction Questionnaire (Satisfaction With Tolerability of Current Treatment Regimen) Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)Participants were asked: In general, how satisfied are you with your ability to tolerate your current treatment regimen? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).
Treatment Satisfaction Questionnaire (General Satisfaction With Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)Participants were asked: In general, how satisfied are you with your current treatment regimen? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).
Treatment Satisfaction Questionnaire (Bothered With the Side Effects of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)Participants were asked: How bothered are you with the side effects of your current treatment regimen? Possible responses were on a 4-category scale: does not bother me; bothers me a little bit; bothers me a lot; and bothers me terribly. For the evaluation of the change in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into does not bother me and bothers me (bothers me included bothers me a little bit; bothers me a lot; bothers me terribly).
Quality of Life (SF-12v2 Health Survey: Physical Component Summary) Change From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)The change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) in the SF-12v2 Health Survey: Physical Component Summary (PCS). The SF-12v2 includes 8 concepts commonly represented in health surveys: physical functioning, role functioning physical, bodily pain, general health, vitality, social functioning, role functioning emotional, and mental health. Results are expressed in terms of 2 composite scores: the PCS and the Mental Component Summary (MCS). PCS and MCS values can range from 0 to 100 and are designed to have a mean value of 50 and SD of 10 (in the general population).
Quality of Life (SF-12v2 Health Survey: Mental Component Summary) Change From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)The change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) in the SF-12v2 Health Survey MCS. The SF-12v2 includes 8 concepts commonly represented in health surveys: physical functioning, role functioning physical, bodily pain, general health, vitality, social functioning, role functioning emotional, and mental health. Results are expressed in terms of 2 composite scores: the PCS and the MCS. PCS and MCS values can range from 0 to 100 and are designed to have a mean value of 50 and a SD of 10 (in the general population).
Treatment Satisfaction Questionnaire (Satisfaction With Current Treatment Regimen to Control HIV): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)Participants were asked: In general, how satisfied are you with the ability of your current treatment regimen to control your HIV infection? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).

Countries

United States

Participant flow

Recruitment details

Participants were enrolled at 70 study sites in the United States and Europe. The first participant was screened on 29 July 2003; the last participant was randomized on 16 January 2004; the last participant observation for the primary endpoint analysis was 11 February 2005; the last participant last visit for end of study analysis was 10 June 2009.

Pre-assignment details

Of the 517 enrolled participants, 6 received no study drug (the safety analysis set was therefore 511 participants: 257 \[efavirenz+emtricitabine+tenofovir disoproxil fumarate group\] and 254 \[efavirenz+combivir group\], respectively).

Participants by arm

ArmCount
EFV+FTC+TDF
Participants in this group received 3 component drugs: efavirenz (EFV) 600 mg + emtricitabine (FTC) 200 mg + tenofovir disoproxil fumarate (tenofovir DF; TDF) 300 mg, each once daily, from the start of the study. At 96 weeks Truvada (\[TVD\] the fixed-dose combination pill containing FTC/TDF (200 mg/300 mg) replaced FTC + TDF; participants continued to receive EFV as before. Nevirapine 200 mg twice daily could replace EFV in the event of efavirenz-associated central nervous system (CNS) toxicity. At Week 144 all participants who opted to roll over into the further 96-week study extension received Atripla (\[ATR\]; the fixed dose combination pill containing EFV/FTC/TDF, 600 mg/200 mg/300 mg) until the end of the study (Week 240). At sites in France, the study was extended by a further 48 weeks or until ATR became commercially available (whichever happened first); once ATR became commercially available in France participants were not required to complete the full 288 weeks of the study.
255
CBV+EFV
Participants in this group received EFV 600 mg once daily + Combivir (\[CBV\]; the fixed dose combination pill containing lamivudine + zidovudine \[150 mg/300 mg\]) twice daily from the start of the study until Week 144. Nevirapine 200 mg twice daily could replace EFV in the event of efavirenz-associated CNS toxicity. At Week 144 all participants who opted to roll over into the additional 96-week study extension received ATR until the end of the study (Week 240). At sites in France, the study was extended by a further 48 weeks or until ATR became commercially available (whichever happened first); once ATR became commercially available in France participants were not required to complete the full 288 weeks of the study.
254
Total509

Withdrawals & dropouts

PeriodReasonFG000FG001
Atripla PhaseAdverse Event21
Atripla PhaseDeath02
Atripla PhaseLost to Follow-up57
Atripla PhaseNon-compliance10
Atripla PhaseOther31
Atripla PhasePregnancy01
Atripla PhaseSub-optimal virological response01
Atripla PhaseWithdrew consent77
Randomized PhaseAdverse Event1010
Randomized PhaseBaseline NNRTI resistance mutations40
Randomized PhaseDeath13
Randomized PhaseHepatitis C treatment contraindicated01
Randomized PhaseHigh Hepatitis B DNA01
Randomized PhaseInability to swallow pills01
Randomized PhaseIncarceration32
Randomized PhaseLost to Follow-up2633
Randomized PhaseMoved out of State01
Randomized PhaseNoncompliance84
Randomized PhasePregnancy31
Randomized PhaseProtocol Violation20
Randomized PhaseSub-optimal virological response313
Randomized PhaseWithrawal of consent1018

Baseline characteristics

CharacteristicEFV+FTC+TDFTotalCBV+EFV
Age Continuous38 years
STANDARD_DEVIATION 9.9
38 years
STANDARD_DEVIATION 9.5
38 years
STANDARD_DEVIATION 9
CD4 cell count246 Cells/mm^3
STANDARD_DEVIATION 171.9
245 Cells/mm^3
STANDARD_DEVIATION 164.2
245 Cells/mm^3
STANDARD_DEVIATION 156.6
HIV-1 RNA5.03 Log10 c/mL
STANDARD_DEVIATION 0.54
5.01 Log10 c/mL
STANDARD_DEVIATION 0.52
5.00 Log10 c/mL
STANDARD_DEVIATION 0.51
HIV Status
AIDS
105 Participants206 Participants101 Participants
HIV Status
Asymptomatic
33 Participants59 Participants26 Participants
HIV Status
Symptomatic HIV Infection
117 Participants244 Participants127 Participants
Race/Ethnicity, Customized
Asian
3 Participants6 Participants3 Participants
Race/Ethnicity, Customized
Black
65 Participants116 Participants51 Participants
Race/Ethnicity, Customized
Hispanic
39 Participants79 Participants40 Participants
Race/Ethnicity, Customized
Not allowed to report
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Other
6 Participants9 Participants3 Participants
Race/Ethnicity, Customized
White
142 Participants298 Participants156 Participants
Sex: Female, Male
Female
36 Participants69 Participants33 Participants
Sex: Female, Male
Male
219 Participants440 Participants221 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
233 / 257152 / 160222 / 254190 / 286
serious
Total, serious adverse events
29 / 25724 / 16035 / 25414 / 286

Outcome results

Primary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 48 (Defined by the Food and Drug Administration [FDA] Time-to-Loss-of Virologic Response [TLOVR] Algorithm

Participants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 48 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 48 visit (ie, the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 48 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV RNA levels \< 400 c/mL prior to Week 48 visit.

Time frame: 48 weeks

Population: Modified intention to treat (MITT) analysis set included all randomized participants who received at least 1 dose of study treatment, no major protocol violations, and no baseline primary NNRTI resistance mutation (2 participants were not ART-naive at study start; 22 participants had NNRTI resistance mutations at baseline \[MITT analysis set: 487\])

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 48 (Defined by the Food and Drug Administration [FDA] Time-to-Loss-of Virologic Response [TLOVR] Algorithm84.4 Percentage of participants
CBV+EFVPercentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 48 (Defined by the Food and Drug Administration [FDA] Time-to-Loss-of Virologic Response [TLOVR] Algorithm72.8 Percentage of participants
Comparison: Null Hypothesis: the percentage of responders (who achieved and maintained confirmed HIV-1 RNA \< 400 c/mL \[defined by the TLOVR algorithm\]) through Week 48 in the EFV+FTC+TDF group is more than 13% worse than in the CBV+EFV group.~Alternative Hypothesis: the percentage of responders who achieved and maintained confirmed HIV-1 RNA \< 400 c/mL \[defined by the TLOVR algorithm\]) through Week 48 in the EFV+FTC+TDF group is no more than 13% worse than in the CBV+EFV group.p-value: 0.00295% CI: [4.3, 18.6]Cochran-Mantel-Haenszel
Secondary

Change From Baseline in CD4 Cell Count (Cells/mm^3) at Week 240 (Atripla Week 96)

Change from baseline to Week 240 (Atripla Week 96) in CD4 cell count = Week 240 (Atripla Week 96) CD4 cell count value minus baseline CD4 cell count value

Time frame: Study/Atripla baseline to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange From Baseline in CD4 Cell Count (Cells/mm^3) at Week 240 (Atripla Week 96)346 CD4 Cell count (Cells/mm^3)Standard Deviation 197.2
CBV+EFVChange From Baseline in CD4 Cell Count (Cells/mm^3) at Week 240 (Atripla Week 96)42 CD4 Cell count (Cells/mm^3)Standard Deviation 148.2
Secondary

Change From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 144

Change from study baseline to Week 144 in CD4 cell count = Week 144 CD4 cell count value minus study baseline CD4 cell count value

Time frame: Baseline to Week 144

Population: AT analysis set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 144312 CD4 Cell Count (cells/mm^3)Standard Deviation 161.2
CBV+EFVChange From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 144271 CD4 Cell Count (cells/mm^3)Standard Deviation 147.4
Comparison: Null Hypothesis: Changes from baseline toWeek 144 in CD4 cell count for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from baseline to Week 144 in CD4 cell count for the EFV+FTC+TDF and CBV+EFV groups are different.p-value: 0.08995% CI: [4.05, 78.55]Van Elteren
Secondary

Change From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 48

Change from study baseline to Week 48 in CD4 cell count = Week 48 CD4 cell count value minus study baseline CD4 cell count value

Time frame: Study baseline to Week 48

Population: AT analysis set included all participants who received at least one dose of study medication and had not committed any major protocol violation.

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 48190 CD4 Cell Count (cells/mm^3)Standard Deviation 111.7
CBV+EFVChange From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 48158 CD4 Cell Count (cells/mm^3)Standard Deviation 107.3
Comparison: Null Hypothesis: Changes from baseline through Week 48 in CD4 cell count for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from baseline through Week 48 in CD4 cell count for the EFV+FTC+TDF and CBV+EFV groups are different.p-value: 0.00295% CI: [8.96, 54.52]Van Elteren
Secondary

Change From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 96

Change from study baseline to Week 96 in CD4 cell count = Week 96 CD4 cell count value minus study baseline CD4 cell count value

Time frame: Baseline to Week 96

Population: AT analysis set included all participants who received at least one dose of study medication and had not committed any major protocol violation.

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 96270 CD4 Cell Count (cells/mm^3)Standard Deviation 147.5
CBV+EFVChange From Study Baseline in CD4 Cell Count (Cells/mm^3) at Week 96237 CD4 Cell Count (cells/mm^3)Standard Deviation 136.4
Comparison: Null Hypothesis: Changes from baseline through Week 96 in CD4 cell count for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from baseline through Week 96 in CD4 cell count for the EFV+FTC+TDF and CBV+EFV groups are different.p-value: 0.03695% CI: [0.87, 64.99]Van Elteren
Secondary

Change From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 144

Change from study baseline to Week 144 in HIV-1 RNA in log10 scale (Week 144 HIV-1 RNA value in log10 scale minus study baseline HIV-1 RNA value in log10 scale).

Time frame: Study baseline to Week 144

Population: AT analysis set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 144-3.32 Log10 c/mLStandard Deviation 0.54
CBV+EFVChange From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 144-3.30 Log10 c/mLStandard Deviation 0.52
Comparison: Null Hypothesis: Changes from baseline to Week 144 in plasma HIV-1 RNA for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from baseline to Week 144 in plasma HIV-1 RNA for the EFV+FTC+TDF and CBV+EFV groups are different.p-value: 0.3995% CI: [-0.16, 0.08]Van Elteren
Secondary

Change From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 48

Change from study baseline to Week 48 in HIV-1 RNA in log10 scale (Week 48 HIV-1 RNA value in log10 scale minus study baseline HIV-1 RNA value in log10 scale).

Time frame: Study baseline to Week 48

Population: As treated (AT) analysis set included all participants who received at least one dose of study medication and had not committed any major protocol violation.

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 48-3.31 Log10 c/mLStandard Deviation 0.54
CBV+EFVChange From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 48-3.26 Log10 c/mLStandard Deviation 0.58
Comparison: Null Hypothesis: Changes from baseline through Week 48 in plasma HIV-1 RNA for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from baseline through Week 48 in plasma HIV-1 RNA for the EFV+FTC+TDF and CBV+EFV groups are different.p-value: 0.3195% CI: [-0.16, 0.06]Van Elteren
Secondary

Change From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 96

Change from study baseline to Week 96 in HIV-1 RNA in log10 scale (Week 96 HIV-1 RNA value in log10 scale minus study baseline HIV-1 RNA value in log10 scale).

Time frame: Study baseline to Week 96

Population: AT analysis set included all participants who received at least one dose of study medication and had not committed any major protocol violation.

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 96-3.30 Log10 c/mLStandard Deviation 0.57
CBV+EFVChange From Study Baseline in HIV-1 RNA (Log10 c/mL) at Week 96-3.25 Log10 c/mLStandard Deviation 0.59
Comparison: Null Hypothesis: Changes from baseline through Week 96 in plasma HIV-1 RNA for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from baseline through Week 96 in plasma HIV-1 RNA for the EFV+FTC+TDF and CBV+EFV groups are different.p-value: 0.4595% CI: [-0.17, 0.08]Van Elteren
Secondary

Change in Limb Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Change from Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96) in limb fat = Week 240 (Atripla Week 96) limb fat value minus Week 144 (Atripla Baseline) limb fat value

Time frame: Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Limb Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)0.12 limb fat (kg)Standard Deviation 1.657
Comparison: Null Hypothesis: Change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) limb fat value is equal to zero. Alternative hypothesis: Change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) limb fat value is not equal to zero.p-value: 0.16Wilcoxon Signed Rank test
Secondary

Change in Limb Fat (kg) From Week 48 to Week 144

Change from Week 48 to Week 144 in limb fat = Week 144 limb fat value minus Week 48 limb fat value

Time frame: Week 48 to Week 144

Population: ITT (whole body DEXA scans to determine limb fat content were conducted only at selected sites at Week 48, Week 96 and Week 144. ITT analysis set: 86)

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Limb Fat (kg) From Week 48 to Week 1441.13 limb fat (kg)Standard Deviation 1.93
CBV+EFVChange in Limb Fat (kg) From Week 48 to Week 144-1.09 limb fat (kg)Standard Deviation 1.72
Comparison: Null Hypothesis: Changes from Week 48 baseline to Week 144 in Limb Fat for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from Week 48 baseline to Week 144 in Limb Fat for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.001Wilcoxon Rank Sum test
Secondary

Change in Limb Fat (kg) From Week 48 to Week 96

Change from Week 48 to Week 96 in limb fat = Week 96 limb fat value minus Week 48 limb fat value.

Time frame: Week 48 to Week 96

Population: ITT (whole body dual-energy X-ray absorptiometry \[DEXA\] scans to determine limb fat content were conducted only at selected sites at Week 48 and Week 96. ITT analysis set: 93)

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Limb Fat (kg) From Week 48 to Week 960.74 limb fat (kg)Standard Deviation 1.6
CBV+EFVChange in Limb Fat (kg) From Week 48 to Week 96-0.77 limb fat (kg)Standard Deviation 1.58
Comparison: Null Hypothesis: Change from Week 48 to Week 96 in limb fat for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Change from Week 48 to Week 96 in limb fat for the EFV+FTC+TDF and CBV+EFV groups are not equalp-value: <0.001Wilcoxon Rank Sum Test
Secondary

Change in Total Body Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Change from Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96) in total body fat = Week 240 (Atripla Week 96) total body fat value minus Week 144 (Atripla Baseline) total body fat value

Time frame: Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Total Body Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)0.37 total body fat (kg)Standard Deviation 3.747
Comparison: Null Hypothesis: Change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) total body fat value is equal to zero. Alternative hypothesis: Change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) total body fat value is not equal to zero.p-value: 0.055Wilcoxon Signed Rank test
Secondary

Change in Total Body Fat (kg) From Week 48 to Week 144

Change from Week 48 to Week 144 in total body fat = Week 144 total body fat value minus Week 48 total body fat value

Time frame: Week 48 to Week 144

Population: ITT (whole body DEXA scans to determine total body fat content were conducted only at selected sites at Week 48, Week 96 and Week 144. ITT analysis set: 86)

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Total Body Fat (kg) From Week 48 to Week 1442.47 total body fat (kg)Standard Deviation 4.22
CBV+EFVChange in Total Body Fat (kg) From Week 48 to Week 144-1.18 total body fat (kg)Standard Deviation 3.37
Comparison: Null Hypothesis: Changes from Week 48 baseline to Week 144 in Total Body Fat for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from Week 48 baseline to Week 144 in Total Body Fat for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: <0.001Wilcoxon Rank Sum test
Secondary

Change in Total Body Fat (kg) From Week 48 to Week 96

Change from Week 48 to Week 96 in total body fat = Week 96 total body fat value minus Week 48 total body fat value

Time frame: 48 weeks to 96 weeks

Population: ITT (whole body DEXA scans to determine total body fat content were conducted only at selected sites at Week 48 and Week 96. ITT analysis set for limb fat analyses: 93)

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Total Body Fat (kg) From Week 48 to Week 961.69 total body fat (kg)Standard Deviation 3.8
CBV+EFVChange in Total Body Fat (kg) From Week 48 to Week 96-0.82 total body fat (kg)Standard Deviation 3.01
Comparison: Null Hypothesis: Changes from Week 48 to Week 96 in Total Body Fat for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from Week 48 to Week 96 in Total Body Fat for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: <0.001Wilcoxon Rank Sum test
Secondary

Change in Trunk Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Change from Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96) in trunk fat = Week 240 (Atripla Week 96) trunk fat value minus Week 144 (Atripla Baseline) trunk fat value

Time frame: Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Trunk Fat (kg) From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)0.27 trunk fat (kg)Standard Deviation 2.242
Comparison: Null Hypothesis: Change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) trunk fat value is equal to zero. Alternative hypothesis: Change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) trunk fat value is not equal to zero.p-value: 0.049Wilcoxon Signed Rank test
Secondary

Change in Trunk Fat (kg) From Week 48 to Week 144

Change from Week 48 to Week 144 in trunk fat = Week 144 trunk fat value minus Week 48 trunk fat value

Time frame: Week 48 to Week 144

Population: ITT (whole body DEXA scans to determine trunk fat content were conducted only at selected sites at Week 48, Week 96 and Week 144. ITT analysis set: 86)

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Trunk Fat (kg) From Week 48 to Week 1441.30 trunk fat (kg)Standard Deviation 2.4
CBV+EFVChange in Trunk Fat (kg) From Week 48 to Week 144-0.10 trunk fat (kg)Standard Deviation 1.79
Comparison: Null Hypothesis: Changes from Week 48 baseline to Week 144 in Trunk Fat for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from Week 48 baseline to Week 144 in Trunk Fat for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.011Wilcoxon Rank Sum test
Secondary

Change in Trunk Fat (kg) From Week 48 to Week 96

Change from Week 48 to Week 96 in trunk fat = Week 96 trunk fat value minus Week 48 trunk fat value

Time frame: Week 48 to Week 96

Population: ITT (whole body DEXA scans to determine trunk fat content were conducted only at selected sites at Week 48 and Week 96. ITT analysis set: 93)

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFChange in Trunk Fat (kg) From Week 48 to Week 960.94 trunk fat (kg)Standard Deviation 2.3
CBV+EFVChange in Trunk Fat (kg) From Week 48 to Week 96-0.04 trunk fat (kg)Standard Deviation 1.65
Comparison: Null Hypothesis: Changes from Week 48 to Week 96 in Trunk Fat for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative hypothesis: Changes from Week 48 to Week 96 in Trunk Fat for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.025Wilcoxon Rank Sum test
Secondary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)

Participants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug, except nevirapine in place of EFV, prior to Week 144 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 144 visit (i.e., the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 144 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV-1 RNA levels \< 400 c/mL prior to Week 144 visit.

Time frame: 144 weeks

Population: Week 144 Efficacy Analysis set (excludes the Week 96 responders who did not consent after Week 96 visits from Week 96 efficacy analysis set \[Week 144 efficacy analysis set: 456).

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)70.9 Percentage of Participants
CBV+EFVPercentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)58.1 Percentage of Participants
Comparison: Null Hypothesis: the proportion of responders (who achieved and maintained confirmed HIV-1 RNA \< 400 c/mL \[defined by the TLOVR algorithm\]) through Week 144 in the EFV+FTC+TDF group is more than 13% worse than in the CBV+EFV group.~Alternative Hypothesis: the proportion of responders who achieved and maintained confirmed HIV-1 RNA \< 400 c/mL \[defined by the TLOVR algorithm\]) through Week 144 in the EFV+FTC+TDF group is no more than 13% worse than in the CBV+EFV group.p-value: 0.00495% CI: [4.2, 21.6]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 240 (Atripla Week 96) Defined by the FDA TLOVR Algorithm

Participants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 240 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 240 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 240 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV RNA levels \< 400 c/mL prior to Week 240 visit.

Time frame: Week 144 (Atripla baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set (all participants who received at least one dose of Atripla). Data collected after permanent discontinuation of the study regimen was excluded from this analysis set.

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 240 (Atripla Week 96) Defined by the FDA TLOVR Algorithm87 Percentage of Participants
Secondary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)

Participants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 96 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 96 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 96 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV RNA levels \< 400 c/mL prior to Week 96 visit.

Time frame: 96 Weeks

Population: Week 96 efficacy analysis set excludes Week 48 responders who did not consent after Week 48 visits from MITT analysis set (Week 96 efficacy analysis set: \[463\])

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)74.6 Percentage of Participants
CBV+EFVPercentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)61.9 Percentage of Participants
Comparison: Null Hypothesis: the percentage of responders (who achieved and maintained confirmed HIV-1 RNA \< 400 c/mL \[defined by the TLOVR algorithm\]) through Week 96 in the EFV+FTC+TDF group is more than 13% worse than in the CBV+EFV group.~Alternative Hypothesis: the percentage of responders who achieved and maintained confirmed HIV-1 RNA \< 400 c/mL \[defined by the TLOVR algorithm\]) through Week 96 in the EFV+FTC+TDF group is no more than 13% worse than in the CBV+EFV group.p-value: 0.00495% CI: [4.3, 21.1]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)

Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL (c/mL) had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug, except nevirapine in place of EFV, prior to Week 144 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 144 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 144 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV-1 RNA levels \< 50 c/mL prior to Week 144 visit.

Time frame: Week 144

Population: Week 144 Efficacy Analysis set (excludes the Week 96 responders who did not consent after Week 96 visits from Week 96 efficacy analysis set \[Week 144 efficacy analysis set: 458).

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)64.3 Percentage of participants
CBV+EFVPercentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 144 (Defined by FDA TLOVR Algorithm)56.3 Percentage of participants
Comparison: Null Hypothesis: the proportion of responders (who achieved and maintained confirmed HIV-1 RNA \< 50 c/mL \[defined by the TLOVR algorithm\]) through Week 144 in the EFV+FTC+TDF group is more than 13% worse than in the CBV+EFV group.~Alternative Hypothesis: the proportion of responders who achieved and maintained confirmed HIV-1 RNA \< 50 c/mL \[defined by the TLOVR algorithm\]) through Week 144 in the EFV+FTC+TDF group is no more than 13% worse than in the CBV+EFV group.p-value: 0.08295% CI: [-0.8, 17]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 240 (Atripla Week 96) Defined by the FDA TLOVR Algorithm

Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 240 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 240 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 240 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV RNA levels \< 50 c/mL prior to Week 240 visit.

Time frame: Week 144 (Atripla baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 240 (Atripla Week 96) Defined by the FDA TLOVR Algorithm85 Percentage of Participants
Secondary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 48 (Defined by FDA TLOVR Algorithm)

Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 48 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 48 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 48 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV RNA levels \< 50 c/mL prior to Week 48 visit.

Time frame: Week 48

Population: MITT analysis set included all randomized participants who received at least one dose of study medication, had no major protocol violations, and no baseline primary NNRTI resistance mutations (2 participants were not ART-naive at study start; 22 participants had NNRTI resistance mutations at baseline \[MITT analysis set: 487\])

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 48 (Defined by FDA TLOVR Algorithm)79.5 Percentage of Participants
CBV+EFVPercentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 48 (Defined by FDA TLOVR Algorithm)70.4 Percentage of Participants
Comparison: Null Hypothesis: the percentage of responders (who achieved and maintained confirmed HIV-1 RNA \< 50 c/mL \[defined by the TLOVR algorithm\]) through Week 48 in the EFV+FTC+TDF group is more than 13% worse than in the CBV+EFV group.~Alternative Hypothesis: the percentage of responders who achieved and maintained confirmed HIV-1 RNA \< 50 c/mL \[defined by the TLOVR algorithm\]) through Week 48 in the EFV+FTC+TDF group is no more than 13% worse than in the CBV+EFV group.p-value: 0.02195% CI: [1.6, 16.6]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)

Participants who achieved/maintained confirmed HIV-1 RNA \< 50 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 96 visit; 2) achieved confirmed HIV-1 RNA \< 50 c/mL on 2 consecutive visits prior to Week 96 visit (that is, the first of the 2 consecutive HIV-1 RNA \< 50 c/mL occurred prior to the Week 96 visit; 3) not had confirmed HIV-1 RNA \> 50 c/mL after achievement of confirmed HIV RNA levels \< 50 c/mL prior to Week 96 visit.

Time frame: Week 96

Population: Week 96 efficacy analysis excludes Week 48 responders who did not consent after Week 48 visits from MITT analysis set (Week 96 efficacy analysis set: \[465\])

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)67.2 Percentage of Participants
CBV+EFVPercentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 96 (Defined by FDA TLOVR Algorithm)60.9 Percentage of Participants
Comparison: Null Hypothesis: the percentage of responders (who achieved and maintained confirmed HIV-1 RNA \< 50 c/mL \[defined by the TLOVR algorithm\]) through Week 96 in the EFV+FTC+TDF group is more than 13% worse than in the CBV+EFV group.~Alternative Hypothesis: the percentage of responders who achieved and maintained confirmed HIV-1 RNA \< 50 c/mL \[defined by the TLOVR algorithm\]) through Week 96 in the EFV+FTC+TDF group is no more than 13% worse than in the CBV+EFV group.p-value: 0.15895% CI: [-2.3, 15]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With HIV-1 RNA < 50 c/mL at Week 48

The percentage of participants with plasma HIV-1 RNA \< 50 c/mL at Week 48. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 50 c/mL (i.e., ITT missing or switch=failure analysis).

Time frame: 48 Weeks

Population: ITT analysis set (Missing Observation or Switch in ART=Failure). ITT analysis set included all randomized participants who received at least one dose of study medication, and had no major protocol violations (2 participants were not ART-naive at study start \[ITT analysis set: 509\]).

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With HIV-1 RNA < 50 c/mL at Week 4874.5 Percentage of Participants
CBV+EFVPercentage of Participants With HIV-1 RNA < 50 c/mL at Week 4866.9 Percentage of Participants
Comparison: Null hypothesis: The percentage of participants with HIV-1 RNA \< 50 c/mL at Week 48 in the EFV+FTC+TDF group is more than 13% worse than the CBV+EFV group. Alternative hypothesis: The percentage of participants with HIV-1 RNA \< 50 c/mL at Week 48 in the EFV+FTC+TDF group is no more than 13% worse than the CBV+EFV group.p-value: 0.05895% CI: [0.1, 15.6]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 144

TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 400 c/mL or last HIV-1 RNA ≥ 400 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 400 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.

Time frame: Week 144

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 14428 Percentage of Participants
CBV+EFVPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 14441 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 400 c/mL) through Week 144 for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative Hypothesis: The percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 400 c/mL) through Week 144 for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.003Log Rank
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 48

TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 400 c/mL or last HIV-1 RNA ≥ 400 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 400 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.

Time frame: Baseline to 48 weeks

Population: ITT analysis set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 4819 Percentage of Participants
CBV+EFVPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 4830 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with Loss of Virologic Response through Week 48 is equal between the two treatment groups. Alternative hypothesis: The percentage of participants with Loss of Virologic Response through Week 48 is different between the two treatment groups.p-value: 0.003Log Rank
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 96

TLOVR for participants with confirmed virologic response (2 consecutive HIV-1 RNA \< 400 c/mL) prior to study drug discontinuation, was the time to the earliest of premature study regimen discontinuation, or confirmed HIV-1 RNA \> 400 c/mL (2 consecutive HIV-1 RNA ≥ 400 c/mL, or the last HIV-1 RNA ≥ 400 c/mL followed by premature study regimen discontinuation due to loss to follow-up). Participants who did not achieve confirmed virologic response before premature study regimen discontinuation or last HIV-1 RNA, were assumed to have lost virologic response on Study Day 1.

Time frame: Week 96

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 9625 Percentage of Participants
CBV+EFVPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) at Week 9637 Percentage of Participants
Comparison: Null Hypothesis: Ther percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 400 c/mL) at Week 96 for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative Hypothesis: The percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 400 c/mL) at Week 96 for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.003Log Rank
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) From Week 144 (Atripla Baseline) Through Week 240 (Atripla Week 96)

TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 400 c/mL or last HIV-1 RNA ≥ 400 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 400 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.

Time frame: Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 400 c/mL) From Week 144 (Atripla Baseline) Through Week 240 (Atripla Week 96)13 Percentage of Participants
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 144

TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.

Time frame: Week 144

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 14434 Percentage of Participants
CBV+EFVPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 14443 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 50 c/mL) through Week 144 for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative Hypothesis: The percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 50 c/mL) through Week 144 for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.056Log Rank
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 48

TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.

Time frame: Baseline to 48 Weeks

Population: ITT analysis set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 4823 Percentage of Participants
CBV+EFVPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 4832 Percentage of Participants
Comparison: Null hypothesis: The percentage of participants with Loss of Virologic Response through Week 48 is equal between the two treatment groups. Alternative hypothesis: The percentage of participants with Loss of Virologic Response through Week 48 is different between the two treatment groups.p-value: 0.046Log Rank
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 96

TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.

Time frame: Week 96

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 9632 Percentage of Participants
CBV+EFVPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) at Week 9638 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 50 c/mL) through Week 96 for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative Hypothesis: The percentage of participants with loss of virologic response (confirmed HIV-1 RNA \< 50 c/mL) through Week 96 for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.124Log Rank
Secondary

Percentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) From Week 144 (Atripla Baseline) Through Week 240 (Atripla Week 96)

TLOVR for participants who achieved a confirmed virologic response was the time to the earliest of: premature study regimen discontinuation or the first of 2 consecutive HIV-1 RNA ≥ 50 c/mL or last HIV-1 RNA ≥ 50 c/mL followed by loss to follow-up. If the time to HIV-1 RNA ≥ 50 c/mL was immediately preceded by missing scheduled visits then the time of virologic failure was replaced by the first such missing visit. Participants who had not achieved a confirmed virologic response before regimen discontinuation were considered non-responders on Study Day 1.

Time frame: Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Loss of Virologic Response (HIV-1 RNA < 50 c/mL) From Week 144 (Atripla Baseline) Through Week 240 (Atripla Week 96)15 Percentage of Participants
Secondary

Percentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 144

The percentage of participants with plasma HIV-1 RNA \< 400 c/mL at Week 144. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 400 c/mL (i.e., ITT missing or switch=failure analysis).

Time frame: Week 144

Population: ITT Analysis set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 14463.1 Percentage of Participants
CBV+EFVPercentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 14451.6 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with HIV-1 RNA \< 400 c/mL at Week 144 in the EFV+FTC+TDF group is more than 13% worse than the CBV+EFV group. Alternative hypothesis: The percentage of participants with HIV-1 RNA \< 400 c/mL at Week 144 in the EFV+FTC+TDF group is no more than 13% worse than the CBV+EFV group.p-value: 0.00995% CI: [3.1, 20.1]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 240 (Atripla Week 96)

The percentage of participants with plasma HIV-1 RNA \< 400 c/mL at Week 240. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 400 c/mL (i.e., ITT missing or switch=failure analysis).

Time frame: Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 240 (Atripla Week 96)87 Percentage of Participants
CBV+EFVPercentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 240 (Atripla Week 96)85 Percentage of Participants
Secondary

Percentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 48.

The percentage of participants with plasma HIV-1 RNA \< 400 c/mL at Week 48. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 400 c/mL (i.e., ITT missing or switch=failure analysis).

Time frame: 48 weeks

Population: Intention to Treat (ITT) analysis set (Missing Observation or Switch in ART=Failure). ITT analysis set included all randomized participants who received at least one dose of study medication, and had no major protocol violations (2 participants were not ART-naive at study start \[ITT analysis set: 509\]).

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 48.80.4 Percentage of Participants
CBV+EFVPercentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 48.69.3 Percentage of Participants
Comparison: Null hypothesis: The percentage of participants with HIV-1 RNA \< 400 c/mL at Week 48 in the EFV+FTC+TDF group is more than 13% worse than the CBV+EFV group. Alternative hypothesis: The percentage of participants with HIV-1 RNA \< 400 c/mL at Week 48 in the EFV+FTC+TDF group is no more than 13% worse than the CBV+EFV group.p-value: 0.00495% CI: [3.7, 18.6]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 144

The percentage of participants with plasma HIV-1 RNA \< 50 c/mL at Week 144. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 50 c/mL (i.e., ITT missing or switch=failure analysis).

Time frame: Week 144

Population: ITT Analysis set (Missing Observation or Switch in ART=Failure)

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 14460.8 Percentage of Participants
CBV+EFVPercentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 14450.4 Percentage of Participants
Comparison: Null hypothesis: The percentage of participants with HIV-1 RNA \< 50 c/mL at Week 144 in the EFV+FTC+TDF group is more than 13% worse than the CBV+EFV group. Alternative hypothesis: The percentage of participants with HIV-1 RNA \< 50 c/mL at Week 144 in the EFV+FTC+TDF group is no more than 13% worse than the CBV+EFV group.p-value: 0.01995% CI: [1.8, 19]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 240 (Atripla Week 96)

The percentage of participants with plasma HIV-1 RNA \< 50 c/mL at Week 240. Participants with missing observations/changes in ART were considered to have HIV-1 RNA ≥ 50 c/mL (i.e., ITT missing or switch=failure analysis).

Time frame: Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 240 (Atripla Week 96)84 Percentage of Participants
CBV+EFVPercentage of Participants With Plasma HIV-1 RNA < 50 c/mL at Week 240 (Atripla Week 96)82 Percentage of Participants
Secondary

Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) at Week 144

Participants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Week 144

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) at Week 14411 Percentage of participants
CBV+EFVPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) at Week 14417 Percentage of participants
Comparison: Null Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 400 c/mL) at Week 144 is equal for the 2 treatment groups. Alternative Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 400 c/mL) at Week 144 is different between the 2 treatment groupsp-value: 0.066Log Rank
Secondary

Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) Through Week 240 (Atripla Week 96)

Participants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Week 240 (Atripla Week 96)

Population: MITT Analysis Set (EFV+FTC+TDF group from study baseline; N=244).~Atripla Efficacy Analysis Set (All Atripla Group from Atripla baseline; N=286)

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) Through Week 240 (Atripla Week 96)11 Percentage of Participants
CBV+EFVPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 400 c/mL) Through Week 240 (Atripla Week 96)2 Percentage of Participants
Secondary

Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) at Week 144

Participants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Week 144

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) at Week 14421 Percentage of Participants
CBV+EFVPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) at Week 14425 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 50 c/mL) at Week 144 is equal for the 2 treatment groups. Alternative Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 50 c/mL) at Week 144 is different between the 2 treatment groupsp-value: 0.3Log Rank
Secondary

Percentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) Through Week 240 (Atripla Week 96)

Participants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Week 240 (Atripla Week 96)

Population: MITT Analysis Set (EFV+FTC+TDF group from study baseline; N=244).~Atripla Efficacy Analysis Set (All Atripla Group from Atripla baseline; N=286)

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) Through Week 240 (Atripla Week 96)22 Percentage of Participants
CBV+EFVPercentage of Participants With Pure Virological Failure (HIV-1 RNA < 50 c/mL) Through Week 240 (Atripla Week 96)4 Percentage of Participants
Secondary

Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 48

Participants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Baseline to 48 Weeks

Population: ITT analysis set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 489 Percentage of Participants
CBV+EFVPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 4816 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 400 c/mL) at Week 48 is equal for the 2 treatment groups. Alternative Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 400 c/mL) at Week 48 is different between the 2 treatment groups.p-value: 0.026Log Rank
Secondary

Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 96

Participants who achieved confirmed HIV-1 RNA \< 400 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Week 96

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 969 Percentage of Participants
CBV+EFVPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 400 c/mL) at Week 9617 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 400 c/mL) at Week 96 is equal for the 2 treatment groups. Alternative Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 400 c/mL) at Week 96 is different between the 2 treatment groups.p-value: 0.025Log Rank
Secondary

Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 48

Participants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Baseline to 48 Weeks

Population: ITT analysis set

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 4816 Percentage of participants
CBV+EFVPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 4824 Percentage of participants
Comparison: Null Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 50 c/mL) through Week 48 for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative Hypothesis: The percentage of participants with pure virological failure (confirmed HIV-1 RNA \< 50 c/mL) through Week 48 for the EFV+FTC+TDF and CBV+EFV groups are different.p-value: 0.063Log Rank
Secondary

Percentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 96

Participants who achieved confirmed HIV-1 RNA \< 50 c/mL but had not experienced a confirmed relapse were considered censored at the last HIV-1 RNA collection date.

Time frame: Week 96

Population: MITT

ArmMeasureValue (NUMBER)
EFV+FTC+TDFPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 9620 Percentage of Participants
CBV+EFVPercentage of Participants With Pure Virologic Failure (HIV-1 RNA < 50 c/mL) at Week 9623 Percentage of Participants
Comparison: Null Hypothesis: The percentage of participants with pure virological failure (HIV-1 RNA \< 50 c/mL) through Week 96 for the EFV+FTC+TDF and CBV+EFV groups are equal. Alternative Hypothesis: The percentage of participants with pure virological failure (HIV-1 RNA \< 50 c/mL) through Week 96 for the EFV+FTC+TDF and CBV+EFV groups are differentp-value: 0.41Log Rank
Secondary

Quality of Life (SF-12v2 Health Survey: Mental Component Summary) Change From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

The change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) in the SF-12v2 Health Survey MCS. The SF-12v2 includes 8 concepts commonly represented in health surveys: physical functioning, role functioning physical, bodily pain, general health, vitality, social functioning, role functioning emotional, and mental health. Results are expressed in terms of 2 composite scores: the PCS and the MCS. PCS and MCS values can range from 0 to 100 and are designed to have a mean value of 50 and a SD of 10 (in the general population).

Time frame: Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFQuality of Life (SF-12v2 Health Survey: Mental Component Summary) Change From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)0.9 Composite ScoreStandard Deviation 8.65
Comparison: Null Hypothesis: There is no change in the MCS score from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96). Alternative Hypothesis: There is a change in the MCS score from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96).p-value: 0.23Wilcoxon Signed Rank Test
Secondary

Quality of Life (SF-12v2 Health Survey: Physical Component Summary) Change From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

The change from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) in the SF-12v2 Health Survey: Physical Component Summary (PCS). The SF-12v2 includes 8 concepts commonly represented in health surveys: physical functioning, role functioning physical, bodily pain, general health, vitality, social functioning, role functioning emotional, and mental health. Results are expressed in terms of 2 composite scores: the PCS and the Mental Component Summary (MCS). PCS and MCS values can range from 0 to 100 and are designed to have a mean value of 50 and SD of 10 (in the general population).

Time frame: Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureValue (MEAN)Dispersion
EFV+FTC+TDFQuality of Life (SF-12v2 Health Survey: Physical Component Summary) Change From Week 144 (Atripla Baseline) to Week 240 (Atripla Week 96)0.0 Composite ScoreStandard Deviation 6.8
Comparison: Null Hypothesis: There is no change in the PCS score from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96). Alternative Hypothesis: There is a change in the PCS score from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96).p-value: 0.95Wilcoxon Signed Rank Test
Secondary

Treatment Satisfaction Questionnaire (Bothered With the Side Effects of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.

Participants were asked: How bothered are you with the side effects of your current treatment regimen? Possible responses were on a 4-category scale: does not bother me; bothers me a little bit; bothers me a lot; and bothers me terribly. For the evaluation of the change in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into does not bother me and bothers me (bothers me included bothers me a little bit; bothers me a lot; bothers me terribly).

Time frame: Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureGroupValue (NUMBER)
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Bothered With the Side Effects of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Bothers me (W 144 and W 240)41 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Bothered With the Side Effects of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Does not bother me (W 144 and W 240)126 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Bothered With the Side Effects of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Bothers me (W 144); does not bother me (W 240)31 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Bothered With the Side Effects of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Does not bother me (W 144); bothers me (W 240)28 Participants
Comparison: Null Hypothesis: There is no category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96). Alternative Hypothesis: There is a category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96).p-value: 0.7McNemar
Secondary

Treatment Satisfaction Questionnaire (General Satisfaction With Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.

Participants were asked: In general, how satisfied are you with your current treatment regimen? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).

Time frame: Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureGroupValue (NUMBER)
EFV+FTC+TDFTreatment Satisfaction Questionnaire (General Satisfaction With Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144 and W 240)180 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (General Satisfaction With Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144 and W 240)10 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (General Satisfaction With Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144); not very satisfied (W 240)9 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (General Satisfaction With Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144); very satisfied (W 240)23 Participants
Comparison: Null Hypothesis: There is no category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96). Alternative Hypothesis: There is a category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96).p-value: 0.013McNemar
Secondary

Treatment Satisfaction Questionnaire (Satisfaction With Convenience and Simplicity of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.

Participants were asked: In general, how satisfied are you with the convenience and simplicity of your current treatment regimen? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).

Time frame: Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureGroupValue (NUMBER)
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Convenience and Simplicity of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144 and W 240)182 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Convenience and Simplicity of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144 and W 240)6 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Convenience and Simplicity of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144); not very satisfied (W 240)8 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Convenience and Simplicity of Current Treatment Regimen): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144); very satisfied (W 240)29 Participants
Comparison: Null Hypothesis: There is no category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96). Alternative Hypothesis: There is a category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96).p-value: <0.001McNemar
Secondary

Treatment Satisfaction Questionnaire (Satisfaction With Current Treatment Regimen to Control HIV): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.

Participants were asked: In general, how satisfied are you with the ability of your current treatment regimen to control your HIV infection? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).

Time frame: Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureGroupValue (NUMBER)
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Current Treatment Regimen to Control HIV): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144 and W 240)192 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Current Treatment Regimen to Control HIV): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144 and W 240)8 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Current Treatment Regimen to Control HIV): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144); not very satisfied (W 240)9 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Current Treatment Regimen to Control HIV): Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144); very satisfied (W 240)17 Participants
Comparison: Null Hypothesis: There is no category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96). Alternative Hypothesis: There is a category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96).p-value: 0.12McNemar
Secondary

Treatment Satisfaction Questionnaire (Satisfaction With Tolerability of Current Treatment Regimen) Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.

Participants were asked: In general, how satisfied are you with your ability to tolerate your current treatment regimen? Possible responses were on a 4-category scale: very satisfied; somewhat satisfied; somewhat dissatisfied; and very dissatisfied. For the evaluation of changes in treatment satisfaction from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96) responses were dichotomized into very satisfied and not very satisfied (not very satisfied included very dissatisfied; somewhat dissatisfied; and somewhat satisfied).

Time frame: Week 144 ([W 144]; Atripla baseline) to Week 240 ([W 240]; Atripla Week 96)

Population: Atripla Efficacy Analysis Set

ArmMeasureGroupValue (NUMBER)
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Tolerability of Current Treatment Regimen) Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144 and W 240)166 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Tolerability of Current Treatment Regimen) Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144 and W 240)21 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Tolerability of Current Treatment Regimen) Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Very satisfied (W 144); not very satisfied (W 240)13 Participants
EFV+FTC+TDFTreatment Satisfaction Questionnaire (Satisfaction With Tolerability of Current Treatment Regimen) Change From Week 144 to Week 240 in the Category Shift From Atripla Baseline.Not very satisfied (W 144); very satisfied (W 240)26 Participants
Comparison: Null Hypothesis: There is no category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96). Alternative Hypothesis: There is a category shift from Week 144 (Atripla baseline) to Week 240 (Atripla Week 96).p-value: 0.037McNemar

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