Clinical evaluation of laboratory methods to monitor exposure of rivaroxaban at trough and peak in patients with atrial fibrillation

Purpose The one-dose daily regime of rivaroxaban could cause a pronounced variability in concentration and effect of which a deeper knowledge is warranted. This study aimed to evaluate the typical exposure range and effect of the direct factor Xa (FXa)-inhibitor rivaroxaban in a cohort of well-characterized patients with atrial fibrillation (AF).