Xarelto's Comparative Efficacy To Warfarin, Pradaxa Will Be Focus At FDA Panel Review

FDA will ask its Cardiovascular and Renal Drugs Advisory Committee whether Bayer/Johnson & Johnson's anticoagulant rivaroxaban must be shown to be "as effective" as warfarin and/or Boehringer Ingelheim's dabigatran at preventing stroke in atrial fibrillation patients.