Abstract
Until recently, pharmaceutical options for stroke prevention in atrial fibrillation were restricted to aspirin or vitamin K antagonist therapy. In recent years development has been underway for alternatives. Apixaban, a direct Factor Xa inhibitor, is orally dosed, target selective and has few known drug or food interactions. As such, it is a member of a new generation of anticoagulants expected to revolutionize the way we approach anticoagulation for stroke prevention in atrial fibrillation. Apixaban has been studied in Phase II and Phase III trials for a variety of indications. The AVERROES trial established apixaban as superior to aspirin for stroke reduction in patients with atrial fibrillation for whom vitamin K antagonist therapy is unsuitable. The recent ARISTOTLE trial found apixaban to be superior to warfarin for stroke prevention in a wide range of patients with atrial fibrillation, with significantly lower bleeding risk, and lower risk of all-cause mortality.
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