Flecainide prevents catecholaminergic polymorphic ventricular tachycardia in mice and humans

Hiroshi Watanabe, Nagesh Chopra, Derek Laver, Hyun Seok Hwang, Sean S. Davies, Daniel E. Roach, Henry J. Duff, Dan M. Roden, Arthur A. M. Wilde, Björn C. Knollmann

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Abstract

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a potentially lethal inherited arrhythmia syndrome in which drug therapy is often ineffective. We discovered that flecainide prevents arrhythmias in a mouse model of CPVT by inhibiting cardiac ryanodine receptor-mediated Ca2+ release and thereby directly targeting the underlying molecular defect. Flecainide completely prevented CPVT in two human subjects who had remained highly symptomatic on conventional drug therapy, indicating that this currently available drug is a promising mechanism-based therapy for CPVT
Original languageEnglish
Pages (from-to)380-383
JournalNature medicine
Volume15
Issue number4
DOIs
Publication statusPublished - 2009

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