RT Journal Article SR Electronic A1 Cunningham, Muriel T1 COAG Trial: No Advantage Seen with Genetic-Based Warfarin Dosing JF MD Conference Express YR 2013 FD SAGE Publications VO 13 IS 20 SP 22 OP 22 DO 10.1177/155989771320010 UL http://mdc.sagepub.com/content/13/20/22.1.abstract AB Warfarin is a widely used medication with a very narrow therapeutic window. Limited evidence suggests that utilizing pharmacogenetic information on top of clinical information could improve warfarin dosing, but large, well-conducted studies are lacking. This article discusses the key results of the Clarification of Optimal Anticoagulation Through Genetics trial [COAG; Kimmel SE et al. N Engl J Med 2013], which compared warfarin initiation using a clinical algorithm with or without the addition of pharmacogenetic information.