title: Will warfarin ever be replaced?
abstract: Arterial and venous thromboembolism account for significant morbidity and mortality worldwide. Warfarin, and other vitamin K antagonists (VKAs), have been the only class of oral anticoagulants currently in clinical use and have been so for over 50 years. Although warfarin is effective in preventing thromboembolism, its use is limited by its narrow therapeutic index that necessitates frequent monitoring and dose adjustments resulting in considerable inconvenience to patients and clinicians. There are now several orally administered anticoagulants in late stages of clinical development that may offer effective, safer, and more convenient anticoagulation. This review summarizes and compares data on novel anticoagulants in the prophylaxis and treatment of venous thromboembolism, acute coronary syndromes, and the prevention of stroke in patients with atrial fibrillation.
authors.affiliation: TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA. cruff@partners.org
authors.forename: Christian T
authors.initials: CT
authors.lastname: Ruff
authors.forename: Eugene
authors.initials: E
authors.lastname: Braunwald
mesh_terms: D054058:Acute Coronary Syndrome / Q000188:drug therapy / Q000517:prevention & control; D000925:Anticoagulants / Q000008:administration & dosage / Q000627:therapeutic use*; D001281:Atrial Fibrillation / Q000150:complications; D002318:Cardiovascular Diseases / Q000188:drug therapy* / Q000517:prevention & control; D065427:Factor Xa Inhibitors; D005343:Fibrinolytic Agents / Q000627:therapeutic use; D006801:Humans; D020521:Stroke / Q000517:prevention & control; D013917:Thrombin / Q000037:antagonists & inhibitors; D013923:Thromboembolism / Q000188:drug therapy / Q000517:prevention & control; D014812:Vitamin K / Q000037:antagonists & inhibitors; D014859:Warfarin / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D000925:Anticoagulants; D065427:Factor Xa Inhibitors; D005343:Fibrinolytic Agents; D014812:Vitamin K; D014859:Warfarin; D013917:Thrombin