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COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY

Apixaban in the prevention of stroke and systemic embolism in patients with non-valvular atrial fibrillation in France: Rationale and design of the PAROS cross-sectional study

Fabien Picard, Gregory Ducrocq, Nicolas Danchin, Bruno Falissard, Olivier Hanon, Isabelle Mahe, Emmanuel Touzé, Philippe Gabriel Steg
Archives of Cardiovascular Diseases 2018, 111 (5): 349-356
29191525

BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia worldwide, and its prevalence is expected to increase with population ageing. The use of vitamin K antagonists (VKAs) for the prevention of stroke and/or systemic embolism in patients with non-valvular atrial fibrillation (NVAF) was recently challenged by non-VKA oral anticoagulants (NOACs), demonstrating a favourable risk-benefit profile, with reductions in stroke, intracranial haemorrhage and mortality, similar major bleeding, but increased gastrointestinal bleeding. Nevertheless, data on their use in a "real-life" setting are scarce for France.

AIMS: To compare the characteristics of patients with AF newly anticoagulated with either VKAs or NOACs, to describe the reasons for discontinuing the previous anticoagulant strategy and/or choosing the newly initiated anticoagulant treatment, and to precisely describe the prescriptions of patients newly initiated with apixaban.

METHODS: This is a nationwide multicentre non-interventional cross-sectional study conducted in patients with AF by a representative stratified sample of cardiologists in France. Over a 12-month accrual period, consecutive patients aged ≥18 years with NVAF, for whom anticoagulant treatment (VKAs or NOACs) has been initiated within the last three months before the index consultation, will be included. The primary outcome will be the comparison of anticoagulant-naïve patient characteristics, co-morbidities and treatment history among the anticoagulant subgroups. Secondary endpoints will include a description of the reasons for discontinuing the previous anticoagulant strategy and/or for initiating and choosing the newly initiated anticoagulant treatment, as well as the prescription conditions of apixaban.

CONCLUSION: The PAROS study will provide real-life data on the characteristics of NVAF patients and their anticoagulant prescription in France.

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