Clinical Utility of PGx-Guided Warfarin Dosing Not Proven in Mayo-Medco Study, Reviewer Concludes at Cardiology Meeting

The study found that hospitalization rates for heart patients taking warfarin dropped by approximately 30 percent when genetic information was available to doctors, but a reviewer noted that the study did not sufficiently account for the fact that physicians may have managed their genotyped patients more closely, leading to better outcomes.