LAUSR

ABSTRACT Introduction: Patients admitted with acute medical conditions are at prolonged risk for venous thrombosis. The efficacy and safety, and the appropriate duration of thromboprophylaxis have not been clearly determined. In recent years, direct coagulation factor inhibitors have been successfully tested for the prevention and treatment of arterial and venous thromboembolism. Betrixaban is a novel direct inhibitor of factor Xa with a noteworthy pharmacological feature: limited renal clearance. Areas covered: This review focuses on the pharmacological profile of Betrixaban, including its clinical efficacy and safety. It also covers the results of the pivotal APEX trial assessing the safety and efficacy of betrixaban for extended thromboprophylaxis in patients with acute medical conditions. Expert opinion: The role of extended thromboprophylaxis in acutely ill medical patients is subject to debate. The beneficial results in terms of VTE prevention were offset by the relevant increase in major bleeding. Betrixaban is the only direct oral anticoagulant to have shown a favorable risk-benefit profile in this setting especially in patients at higher risk for thrombosis.