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01.02.2010 | Original Paper | Ausgabe 2/2010

Clinical Research in Cardiology 2/2010

Effect of the long-term administration of nebivolol on clinical symptoms, exercise capacity and left ventricular function in patients with heart failure and preserved left ventricular ejection fraction: background, aims and design of the ELANDD study

Zeitschrift:
Clinical Research in Cardiology > Ausgabe 2/2010
Autoren:
Otto Kamp, Marco Metra, Gilles W. De Keulenaer, Burkert Pieske, Viviane Conraads, José Zamorano, Lieven Huysse, Panos E. Vardas, Michael Böhm, Livio Dei Cas
Wichtige Hinweise
For the ELANDD investigators.

Abstract

Background

The SENIORS trial demonstrated that nebivolol has beneficial effects in patients with heart failure. However, the role of beta-blocker therapy in patients with heart failure and preserved left ventricular ejection fraction (HFPEF) is still unsettled.

Objective

To assess the long-term effects of administration of nebivolol, compared to placebo, on the clinical symptoms, exercise capacity and parameters of left ventricular (LV) function in patients with HFPEF.

Methods

The Effect of Long-term Administration of Nebivolol on clinical symptoms, exercise capacity and left ventricular function in patients with Diastolic Dysfunction (ELANDD) study is a prospective multicenter European trial in 120 patients with HFPEF randomised to nebivolol or placebo. HFPEF is defined as symptoms or signs of heart failure, a LV ejection fraction >45% and evidence of diastolic LV dysfunction by Doppler echocardiography. Procedures include a baseline clinical examination, 6-min walk test (6MWT), electrocardiography, Doppler echocardiography and Minnesota QoL questionnaire. Nebivolol or placebo is started at 2.5 mg/day and gradually uptitrated to 10 mg/day. After initiation of the study, patients are assessed at 1, 2, 5 and 6 weeks (titration phase) and at weeks 12 and 26. The primary endpoint is the change from baseline in the 6MWT distance with nebivolol versus placebo. Sample size calculations are based on an anticipated 15% difference (70 m) in the 6MWT distance between nebivolol and placebo-treated patients. This study will allow the collection of data regarding the possible clinical benefits and the effects on LV function of nebivolol administration in patients with HFPEF.

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