Prophylaxis In Congenital Factor VII Deficiency, Indications, Efficacy and Safety: Results of the STER

Abstract Abstract 665 Introduction Prophylaxis is considered a difficult endeavour in FVII deficiency, especially because of the very short FVII zymogen and FVIIa half-lives, mainly in childhood. The Seven Treatment Evaluation Registry (STER, www.targetseven.org) is a prospective observational, multi-centre, web-based registry concerned with the evaluation of treatments for spontaneous bleeding episodes, surgery and prophylaxis in patients with FVII deficiency. As regards prophylaxis, STER provides the frame for a structured and detailed data capture aiming at: a) identifying patients in whom prophylaxis is advisable, b) defining clinical settings in which prophylaxis is necessary and c) de…