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Comparison of PI vs PI ATV vs ATV/r BMS 089
ARV-trial.com Comparison of PI vs PI ATV vs ATV/r BMS 089 LPV/r mono vs LPV/r + ZDV/3TC MONARK LPV/r QD vs BID M M A5073 LPV/r + 3TC vs LPV/r + 2 NRTI GARDEL ATV/r vs FPV/r ALERT ATV/r vs DRV/r ATADAR FPV/r vs LPV/r KLEAN SQV/r vs LPV/r GEMINI ATV/r vs LPV/r CASTLE DRV/r vs LPV/r ARTEMIS 1
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ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC
Design Randomisation 1: 1 Open-label W24 W96 ATV/r 300/100 mg + TDF/FTC qd ≥ 18 years Antiretroviral naïve HIV RNA > 1,000 c/mL No diabetes, BMI < 30 kg/m2 No current use of drugs affecting lipid or glucose metabolism N = 91 DRV/r 800/100 mg + TDF/FTCqd N = 89 Objective Primary Endpoint : mean change in total cholesterol at W24 (ITT analysis) 90 patients per arm needed to detect a difference ≥ 21 mg/dL between arms in total cholesterol change, power 80%, 5% bilateral significance Secondary endpoints : mean change in other lipid parameters, insulin resistance, total bilirubin, eGFR (MDRD equation), CD4 and CD8 cell counts, HIV RNA, discontinuation for AEs ATADAR Martinez E. HIV Medicine 2014;15:330-8
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Baseline characteristics and disposition
ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC Baseline characteristics and disposition ATV/r + TDF/FTC, N = 90 DRV/r + TDF/FTC, N = 88 Age, years 35 37 Female 13% 11% HIV RNA log10c/mL 4.8 CD4/mm3 328 341 Total cholesterol, mg/dL 158 LDL-cholesterol, mg/dL 97 98 HDL-cholesterol, mg/dL 39 Total cholesterol:HDL-cholesterol ratio 4.5 4.4 Triglycerides, mg/dL 106 108 HOMA-IR 2.4 2.5 Total bilirubin, mg/dL 0.54 0.58 eGFR (MDRD), mL/min/1.73 m2 110 Discontinued at W24 N = 8 (9%) Adverse event 5 3 Withdrew consent / lost to follow-up 1 / 2 0 / 5 Data expressed as mean ATADAR Martinez E. HIV Medicine 2014;15:330-8
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Virological efficacy and overall tolerability at W24
ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC Virological efficacy and overall tolerability at W24 ATV/r + TDF/FTC, N = 90 DRV/r + TDF/FTC, N = 88 Confirmed HIV RNA > 50 c/mL, n 7 8 Any AE, all grade, % 63.3 62.5 Grade 3-4 AEs, % 22.4 8.0 (p< 0.01) Bilirubin elevations, n 17 Jaundice 3/17 AEs leading to study drug discontinuation, n (%) 5 (5.6%) 3 (3.4%) Jaundice, n 3 Rash, n 1 2 Suicide attempt, n Gastrointestinal symptoms, n ATADAR Martinez E. HIV Medicine 2014;15:330-8
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ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC
Lipid changes from baseline to W24 ATV/r + TDF/FTC N = 90 DRV/r + TDF/FTC N = 88 p Total cholesterol, mg/dL ± 26.76 ± 25.85 0.29 LDL-cholesterol, mg/dL ± 21.45 ± 21.97 0.12 HDL-cholesterol, mg/dL ± 10.36 ± 8.42 0.26 Total:HDL-cholesterol ratio ± 6.38 ± 0.86 0.07 Triglycerides ± 61.76 ± 64.24 0.83 No participant was prescribed lipid-lowering agents or other drugs potentially affecting plasma lipids Other laboratory changes from baseline to W24 ATV/r + TDF/FTC N = 90 DRV/r + TDF/FTC N = 88 p HOMA-IR ± 0.24 ± 0.34 0.38 Total bilirubin, mg/dL ± 1.30 ± 0.30 < 0.01 eGFR, mL/min/1.73m2 / 22.16 ± 14.54 0.67 ATADAR Martinez E. HIV Medicine 2014;15:330-8
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ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC
Metabolic sub-study in 86 participants (ATV/r = 45, DRV/r = 41) LDL subfraction phenotype and Lp-PLA2 at W48, Framingham risk score change. Patients assessed at W48 : 40/45 and 37/41 LDL subfraction phenotype : predominance of the more favorable phenotype at baseline (around 75% of participants) ATV/r : increase in cholesterol content in small and dense LDL particles, associated with coronary artery disease risk (p = 0.015) at W48 DRV/r : increase in LDL size (p = 0.017) and large LDL particles (p = 0.008) (improved atherogenic properties) at W48 No change in total Lp-PLA2 activity and no shift in its relative distribution in LDL or HDL particles at W48, with no differences between arms Framingham score very low at baseline (1%) with no changes at W48 Insulin increased only in the ATV/r group (p = 0.017), but HOMA-IR showed no changes in either arm at W48 BMI increased in the ATV/r arm (+1.01 kg/m2 at W48, p = 0.004) [p= 0.06 vs DRV/r] Waist increased in the DRV/r arm (+ 3 cm at W48, p < 0.001) [p = vs ATV/r] ATADAR Saumoy M. J AntimicrobChemother 2015;70:1130-8
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ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC
W96 results (efficacy and resistance) ATV/r + TDF/FTC N = 90 DRV/r + TDF/FTC N = 88 Discontinuation by W96 21 (23%) 17 (19%) For AE / virologic failure 7 / 2 5 / 2 % free of treatment failure 62% 70% 95% CI : to 21.6 % free of virologic failure (VF) 79% 85% 95% CI : to 17.6 Resistance testing♯ 6/17 VF 5/13 VF PI mutations detected (none major) 4*/6 4**/5 ♯ no baseline resistance test * V45M ; E35D + K43K/N + D60E + I93L ; A71V + E35D + M36I + I62V + I93L ; L24I/V ** I15V ; E35D + L63P ; E35D + L63P ; I13V + M36I/M + I62I/V + L63H/Q ATADAR Martinez E. CID 2015;60:811-20
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Lipid and other laboratory changes, mean
ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC W96 results (safety) Overall safety ATV/r + TDF/FTC, N = 72 DRV/r + TDF/FTC, N = 74 p Serious AEs 26% 8% 0.002 Grade 3-4 AEs 44% 14% < AE leading to discontinuation 7.8% 5.7% 0.25 Lipid and other laboratory changes, mean ATV/r DRV/r p Total cholesterol, mg/dL All non significant LDL-cholesterol, mg/dL + 1.86 + 8.22 HDL-cholesterol, mg/dL + 4.8 + 4.9 Total:HDL-cholesterol ratio - 0.82 - 0.29 Triglycerides eGFR (MDRD), mL/min/1.73 m2 - 8.63 -7.27 ATADAR Martinez E. CID 2015;60:811-20
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Changes in body composition (DXA and abdominal CT-scan) at W96
ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC Changes in body composition (DXA and abdominal CT-scan) at W96 ATV/r + TDF/FTC, N = 78 DRV/r + TDF/FTC, N = 80 p BMI, kg/m2 + 1.25 + 0.67 0.13 Body fat, g + 3373 + 1096 0.009 Body fat-free mass, g + 894 + 661 0.71 Limb fat, g + 1235 168 0.007 Trunk fat, g + 1566 + 541 0.10 Subcutaneous abdominal adipose tissue, cm2 + 38.8 + 14.9 0.036 Visceral adipose tissue, cm2 + 30.1 0.47 Total abdominal adipose tissue, cm2 + 77.3 + 45.1 0.06 Bone mineral content, g - 79.8 - 80.2 0.99 Data expressed as mean In the ATV/r arm : significant correlations between changes in HOMA-IR and changes in BMI, body fat, and SAT In the DRV/arm : no correlations between HOMA-IR changes and changes in BMI and body fat parameters ATADAR Martinez E. CID 2015;60:811-20
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ATADAR Study: ATV/r + TDF/FTC vs DRV/r + TDF/FTC
Conclusion No major differences between ATV/r + TDF/FTC and DRV/r + TDF/FTC in efficacy, clinically relevant side effects, or plasma cholesterol fractions, over 96 weeks However, ATV/r led to higher triglycerides and more total and subcutaneous fat than DRV/r Fat gains with ATV/r were associated with insulin resistance In contrast with what occurred in the ATV/r arm, the LDL subfraction phenotype improved with DRV/r at W48. This difference was associated with a lower impact on plasma triglycerides with DRV/r Most Grade 3-4 AE were due to hyperbilirubinemia, in the ATV/r arm ATADAR Martinez E. CID 2015;60: ; Saumoy M. J AntimicrobChemother 2015;70:1130-8
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