Edoxaban vs. Warfarin in East Asian Patients With Atrial Fibrillation - An ENGAGE AF-TIMI 48 Subanalysis

Circulation Journal : Official Journal of the Japanese Circulation Society
Takeshi YamashitaRobert P Giugliano

Abstract

In the multinational, double-blind, double-dummy ENGAGE AF-TIMI 48 phase 3 study, once-daily edoxaban was non-inferior to warfarin for prevention of stroke or systemic embolism event (SEE) in patients with non-valvular atrial fibrillation (AF). Here, we evaluated the efficacy and safety of edoxaban in patients from East Asia. Patients aged ≥21 years with documented AF and CHADS score ≥2 were randomized to receive once-daily edoxaban higher-dose (60 mg) or lower-dose (30 mg) regimen or warfarin dose-adjusted to an international normalized ratio of 2.0-3.0. Patients with a creatinine clearance of 30-50 ml/min, weighing ≤60 kg, or receiving strong p-glycoprotein inhibitors at randomization or during the study received a 50% dose reduction of edoxaban or matched placebo. This prespecified subanalysis included 1,943 patients from Japan, China, Taiwan, and South Korea. The annualized rate of stroke/SEE for higher-dose edoxaban was 1.34% vs. 2.62% for warfarin (hazard ratio [HR], 0.53; 95% confidence interval [CI]: 0.31-0.90, P=0.02) and 2.52% for lower-dose edoxaban (HR, 0.98; 95% CI: 0.63-1.54, P=0.93). Compared with warfarin (4.80%), major bleeding was significantly reduced for the higher-dose (2.86%; HR, 0.61; 95% CI: 0.41-0.89, P...Continue Reading

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Citations

Mar 11, 2016·Circulation Journal : Official Journal of the Japanese Circulation Society·Masahiro Yasaka
Jun 7, 2016·Circulation Journal : Official Journal of the Japanese Circulation Society·Yasushi Miyauchi
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