A retrospective cohort study in the Annals of Pharmacotherapy found a clinically significant decrease in warfarin dose-response with concurrent hepatitis C treatments, especially with ombitasvir/paritaprevir/ritonavir and dasabuvir (OBV-PTV/r-DSV).
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For veterans receiving warfarin for nonvalvular atrial fibrillation, continuing warfarin after a diagnosis of dementia is associated with a protective effect in prevention of stroke and mortality, according to a study published online December 30 in the Journal of the American Geriatrics Society.
According to a new study published in JAMA, treatment with low molecular-weight heparin tinzaparin did not significantly reduce recurrent venous thromboembolism (VTE) or major bleeding and overall mortality compared to warfarin, but it did significantly reduce the risk of clinically relevant non-major bleeding in patients with active cancer.
The patients, a 71-year-old male and a 62 year-old-male, both on long-term warfarin therapy, presented to the emergency department with symptoms of COVID-19.
Patients with a genetic sensitivity to warfarin may have higher rates of bleeding during the first several months of treatment and could benefit from therapy with an alternate anticoagulant medication, reports a new study in The Lancet.
Bristol-Myers Squibb and Pfizer announced that the reductions in stroke or systemic embolism, major bleeding and mortality demonstrated with Eliquis (apixaban) compared to warfarin (Coumadin; Bristol-Myers Squibb) in the Phase 3 ARISTOTLE trial were consistent across a wide range of stroke and bleeding risk scores in patients with nonvalvular atrial fibrillation; these were results from a subanalysis from the study.
Boehringer Ingelheim announced that the Pradaxa (dabigatran etexilate mesylate capsules) prescribing information has been updated to affirm that Pradaxa 150mg twice daily was superior in reducing ischemic and hemorrhagic strokes relative to warfarin
Bristol-Myers Squibb and Pfizer announced results of a pre-specified subanalysis of the Phase 3 ARISTOTLE trial according to patient age in patients with nonvalvular atrial fibrillation (NVAF).
Bristol-Myers Squibb and Pfizer announced results of a pre-specified subanalysis of the Phase 3 ARISTOTLE trial that assessed the effect of blood pressure control on outcomes as well as the treatment effect of Eliquis (apixaban) vs. warfarin to blood pressure control in patients with nonvalvular atrial fibrillation (NVAF).
The greatest risk reduction of stroke or systemic embolism was seen with dabigatran 150mg twice daily (odds ratio [OR] 0.65, 95% CI: 0.52-0.81), followed by apixaban 5mg twice daily (OR 0.79, 95% CI: 0.66-0.94).