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Dabigatran is an oral direct thrombin inhibitor. Dabigatran (Pradaxa) was found to be noninferior to Warfarin in prevention of ischemic stroke, as well as intracranial hemorrhage risk and overall mortality for non-valvular atrial fibrillation according to the RE-LY trial. [9]
Dabigatran, sold under the brand name Pradaxa among others, is an anticoagulant used to treat and prevent blood clots and to prevent stroke in people with atrial fibrillation. [ 6 ] [ 7 ] Specifically it is used to prevent blood clots following hip or knee replacement and in those with a history of prior clots. [ 6 ]
The monitoring of warfarin and keeping the international normalized ratio (INR) between 2.0 and 3.0, along with avoiding over and under treatment, has driven a search for an alternative. [3] [14] A naturally occurring inhibitor of factor Xa was reported in 1971 by Spellman et al. from the dog hookworm. [15]
Unlike ximelagatran, a long-term treatment of dabigatran etexilate has not been linked with hepatic toxicity, seeing as how the drug is predominantly eliminated (>80%) by the kidneys. Dabigatran etexilate was approved in Canada and Europe in 2008 for the prevention of VTE in patients undergoing hip- and knee surgery.
Warfarin is indicated for the prophylaxis and treatment of venous thrombosis and its extension, pulmonary embolism; [9] prophylaxis and treatment of thromboembolic complications associated with atrial fibrillation and/or cardiac valve replacement; [9] and reduction in the risk of death, recurrent myocardial infarction, and thromboembolic events such as stroke or systemic embolization after ...
The RE-LY trial is a Boehringer Ingelheim, phase III study. It evaluated the efficacy and safety of two different doses of dabigatran relative to warfarin in over 18,000 patients with atrial fibrillation. They were randomized to one of three arms: (1) adjusted dose warfarin, (2) dabigatran 110 mg twice daily, or (3) dabigatran 150 mg twice daily.
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