Development of apixaban: a novel anticoagulant for prevention of stroke in patients with atrial fibrillation.

Abstract:

:The factor Xa inhibitor apixaban is one of the novel anticoagulants to emerge as alternatives to long-standing standards of care that include low-molecular-weight heparin and warfarin. The development of apixaban reflects a strategy to optimize the clinical pharmacology profile, dosing posology, trial designs, and statistical analyses across multiple indications, and to seek alignment with global health authorities. The primary objective of dose selection was to maintain balance between efficacy and bleeding risk. Twice-daily dosing of apixaban, rather than once daily, was chosen to lower peak concentrations and reduce fluctuations between peak and trough levels. Our discussion here focuses on the use of apixaban for stroke prevention in nonvalvular atrial fibrillation (NVAF). Supporting this indication, a pair of registrational trials was conducted that enrolled the full spectrum of patients who, by guidelines, were eligible for anticoagulation. In the AVERROES study of patients who were unsuitable for warfarin therapy, apixaban was superior to aspirin in reducing the risk of stroke or systemic embolism (SSE), without a significant increase in major bleeding (MB). In the ARISTOTLE (Apixaban for Reduction In STroke and Other ThromboemboLic Events in Atrial Fibrillation) study, apixaban was superior to warfarin on the rates of SSE, MB, and all-cause mortality. Overall, these studies have demonstrated a substantially favorable benefit-risk profile for apixaban over warfarin and aspirin in NVAF.

journal_name

Ann N Y Acad Sci

authors

Hanna MS,Mohan P,Knabb R,Gupta E,Frost C,Lawrence JH

doi

10.1111/nyas.12567

subject

Has Abstract

pub_date

2014-11-01 00:00:00

pages

93-106

eissn

0077-8923

issn

1749-6632

journal_volume

1329

pub_type

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