Rivaroxaban, an oral direct factor Xa inhibitor.
Rivaroxaban is a small molecule, direct Factor Xa inhibitor and may be a potentially attractive alternative to vitamin K antagonists. Rivaroxaban is being investigated for the prevention and treatment of venous and arterial thrombosis. A broad search of Medline, clinicaltrials.gov and the annual proceedings of the American Society of Hematology and the International Society on Thrombosis and Hemostasis was conducted. This review addresses the findings of this systematic search, including the need for new oral anticoagulants, the development and pharmacology of rivaroxaban, and the results of completed as well as ongoing trials with rivaroxaban. At present, the safety and efficacy of rivaroxaban for the prophylaxis and treatment of venous thromboembolism has been evaluated in Phase II and Phase III trials involving over 24,000 patients. Additionally, rivaroxaban is being evaluated for the treatment of pulmonary embolism, secondary prevention after acute coronary syndromes and the prevention of stroke and non-central nervous system embolism in patients with non-valvular atrial fibrillation. The drug may have its greatest impact in providing a much-needed and attractive alternative to warfarin. Further data (especially large Phase III trials) are required.
Piccini, JP; Patel, MR; Mahaffey, KW; Fox, KAA; Califf, RM
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