Portola Pharmaceuticals Inc. announced that it has submitted a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) seeking approval to market betrixaban for extended-duration prophylaxis of venous thromboembolism (VTE) in acute medically ill patients with risk factors for VTE. Betrixaban, an FDA Fast Track-designated investigational drug, is an oral, once-daily Factor Xa inhibitor anticoagulant.



