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Published on: February 28, 2012
"Pill-in-Pocket" anticoagulation for stroke prevention in atrial fibrillation
Graham Peigh1, Rod S Passman1,2,3
1Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Insights
Uninterrupted anticoagulation for atrial fibrillation (AF) may pose risks and may not benefit all patients. A targeted approach, like "pill-in-the-pocket" therapy, is being investigated to optimize AF treatment.
Area of Science:
- Cardiology
- Clinical Trials
- Pharmacology
Background:
- Current practice favors uninterrupted anticoagulation for atrial fibrillation (AF), irrespective of AF burden, based on early trial data.
- However, continuous anticoagulation carries risks and may not be universally beneficial for all AF patients.
- Emerging data suggest a threshold for AF duration and a temporal link between stroke and prolonged AF episodes, necessitating a more tailored anticoagulation strategy.
Purpose of the Study:
- To review evidence supporting the investigation of a "pill-in-the-pocket" anticoagulation strategy for AF.
- To introduce the Rhythm Evaluation for Anticoagulation Therapy for Atrial Fibrillation (REACT-AF) trial, designed to rigorously assess this targeted approach.
Main Methods:
- Review of contemporary data on AF burden, stroke association, and anticoagulation thresholds.
- Introduction and description of the REACT-AF trial design and objectives.
Main Results:
- Discussion of data supporting the potential efficacy and safety of intermittent anticoagulation for select AF patients.
- Highlighting the critical role of the upcoming REACT-AF trial in providing robust evidence.
Conclusions:
- A targeted anticoagulation approach, potentially including "pill-in-the-pocket" therapy, warrants further investigation for atrial fibrillation.
- The REACT-AF trial is poised to offer definitive insights into the optimal anticoagulation strategy for AF management.
Abstract:
Uninterrupted anticoagulation for atrial fibrillation (AF), regardless of AF burden, is deeply rooted in practice since the early anticoagulation trials. However, uninterrupted anticoagulation is not without risks, and may not be beneficial for allcomers with a history of AF. Indeed, contemporary data that support a critical duration threshold of AF that benefits from anticoagulation, and a temporal association between stroke and multihour AF episodes, compel the study of a more targeted approach to AF anticoagulation. In this review, we discuss data that support further investigation of "pill in the pocket" anticoagulation for AF, and introduce the pivotal Rhythm Evaluation for Anticoagulation Therapy for Atrial Fibrillation (REACT-AF) trial that will robustly evaluate this strategy.
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