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Medicare patients finds risks lower for stroke and death with blood thinner Pradaxa: Study

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In its ongoing review of the blood thinner Pradaxa (dabigatran), the US Food and Drug Administration (US FDA) recently completed a new study in Medicare patients comparing Pradaxa to the blood thinner warfarin (Coumadin, Jantoven, and generics), for risk of ischemic or clot-related stroke, bleeding in the brain, major gastrointestinal (GI) bleeding, myocardial infarction (MI), and death. Pradaxa and warfarin are used to reduce the risk of stroke and blood clots in patients with a common type of abnormal heart rhythm called non-valvular atrial fibrillation (AF).

The new study included information from more than 134,000 Medicare patients, 65 years or older, and found that among new users of blood-thinning drugs, Pradaxa was associated with a lower risk of clot-related strokes, bleeding in the brain, and death, than warfarin. The study also found an increased risk of major gastrointestinal bleeding with use of Pradaxa as compared to warfarin. The MI risk was similar for the two drugs.

Importantly, the new study is based on a much larger and older patient population than those used in FDA’s earlier review of post-market data, and employed a more sophisticated analytical method to capture and analyse the events of concern. This study’s findings, except with regard to MI, are consistent with the clinical trial results that provided the basis for Pradaxa’s approval.

EP News BureauMumbai

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