• Int J Stroke · Aug 2016

    Randomized Controlled Trial Multicenter Study

    close: Closure of patent foramen ovale, oral anticoagulants or antiplatelet therapy to prevent stroke recurrence: Study design.

    • Jean-Louis Mas, Geneviève Derumeaux, Pierre Amarenco, Caroline Arquizan, Pierre Aubry, Martine Barthelet, Bernard Bertrand, Eric Brochet, Laure Cabanes, Erwan Donal, Jean-Luc Dubois-Randé, Isabelle Durand-Zaleski, Laura Ernande, Gérard Finet, Alain Fraisse, Maurice Giroud, Patrice Guérin, Gilbert Habib, Jean-Michel Juliard, Didier Leys, Michel Lièvre, Jean-René Lusson, François Marcon, Patrick Michel, Thierry Moulin, François Mounier-Vehier, Luc Pierard, Christophe Piot, Christian Rey, Gilles Rodier, Raymond Roudaut, Jean-Marc Schleich, Emmanuel Teiger, Guillaume Turc, Fabrice Vuillier, Christian Weimar, France Woimant, Gilles Chatellier, and CLOSE investigators.
    • Department of Neurology, Sainte-Anne Hospital, Paris Descartes University, Inserm 894, DHU NeuroVasc, Paris, France jl.mas@ch-sainte-anne.fr.
    • Int J Stroke. 2016 Aug 1; 11 (6): 724-32.

    RationaleCurrently available data do not provide definitive evidence on the comparative benefits of closure of patent foramen ovale, oral anticoagulants and antiplatelet therapy in patients with patent foramen ovale-associated cryptogenic strokeAimTo assess whether transcatheter patent foramen ovale closure plus antiplatelet therapy is superior to antiplatelet therapy alone and whether oral anticoagulant therapy is superior to antiplatelet therapy, for secondary stroke prevention in patients aged 16 to 60 years with a large patent foramen ovale or a patent foramen ovale associated with an atrial septal aneurysm, and an otherwise unexplained ischaemic stroke or retinal ischaemia.Sample SizeSix hundred and sixty-four patients were included in the study.Methods And DesignCLOSE is an academic-driven, multicentre, randomized, open-label, three-group, superiority trial with blinded adjudication of outcome events. The trial has been registered with Clinical Trials Register (Clinicaltrials.gov, NCT00562289). Patient recruitment started in December 2007. Patient follow-up will continue until December 2016. Expected mean follow-up = 5.6 years.Study OutcomesThe primary efficacy outcome is the occurrence of fatal or nonfatal stroke. Safety outcomes include fatal, life-threatening or major procedure- or device-related complications and fatal, life-threatening or major haemorrhagic complications.DiscussionCLOSE is the first specifically designed trial to assess the superiority of patent foramen ovale closure over antiplatelet therapy alone and the superiority of oral anticoagulants over antiplatelet therapy to prevent stroke recurrence in patients with patent foramen ovale-associated cryptogenic stroke.© 2016 World Stroke Organization.

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