Effect of ivabradine in patients with heart failure with preserved ejection fraction: the EDIFY randomized placebo-controlled trial

Michel Komajda, Richard Isnard, Alain Cohen-Solal, Marco Metra, Burkert Pieske, Piotr Ponikowski, Adriaan A Voors, Fabienne Dominjon, Cecile Henon-Goburdhun, Matthieu Pannaux, Michael Bohm, prEserveD left ventricular ejectIon fraction chronic heart Failure with ivabradine studY (EDIFY) Investigators, C. De Pasquale, W Heddle

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Abstract

Aims: This randomized, double-blind, placebo-controlled trial assessed whether heart rate (HR) reduction with ivabradine improves cardiac function in heart failure with preserved ejection fraction (HFpEF). Methods and results: The prEserveD left ventricular ejectIon fraction chronic heart Failure with ivabradine studY (EDIFY) included 179 patients in New York Heart Association (NYHA) classes II and III, in sinus rhythm, with HR of ≥70 b.p.m., NT-proBNP of ≥220 pg/mL (BNP ≥80 pg/mL) and left ventricular ejection fraction of ≥45%. Ivabradine (or placebo) was titrated to 7.5 mg b.i.d. Patients were followed for 8 months on the change and assessed for three co-primary endpoints: echo-Doppler E/e′ ratio, distance on the 6-min walking test (6MWT), and plasma NT-proBNP concentration. At baseline, median E/e′ was 12.8 [interquartile range (IQR): 9.9–16.3], median distance on the 6MWT was 320 m (IQR: 247–375 m), and median NT-proBNP was 375 pg/mL (IQR: 253–701 pg/mL). Baseline median HR was 75 b.p.m. (IQR: 70–107 b.p.m.). A total of 171 patients (87 in the ivabradine group, 84 in the placebo group) were evaluated for treatment efficacy. After 8 months of treatment, findings showed a median change in HR of −13.0 b.p.m. (IQR: −18.0 to −6.0 b.p.m.) in the ivabradine group and −3.5 b.p.m. (IQR: −11.5 to 3.0 b.p.m.) in the placebo group [estimated between-group difference: 7.7 b.p.m.; 90% confidence interval (CI) −10 to −5.4; P < 0.0001]. No evidence of improvement was found in any of the three co-primary endpoints. There was almost no change in median E/e′ in either of the two groups [median change: +1.0 (IQR: −0.8 to 2.9) in the ivabradine group; −0.6 (IQR: −2.2 to 1.4) in the placebo group; estimated between-group difference: 1.4, 90% CI 0.3–2.5; P = 0.135]. There were no meaningful changes in the other co-primary endpoints and no apparent trends. There was no significant safety concern. Conclusions: In patients with HFpEF, HR reduction with ivabradine did not improve outcomes. These findings do not support the use of ivabradine in HFpEF.

Original languageEnglish
Pages (from-to)1495-1503
Number of pages9
JournalEuropean Journal of Heart Failure
Volume19
Issue number11
DOIs
Publication statusPublished - Nov 2017

Keywords

  • Heart Failure
  • Preserved ejection fraction
  • Ivabradine
  • Heart rate

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    Komajda, M., Isnard, R., Cohen-Solal, A., Metra, M., Pieske, B., Ponikowski, P., Voors, A. A., Dominjon, F., Henon-Goburdhun, C., Pannaux, M., Bohm, M., prEserveD left ventricular ejectIon fraction chronic heart Failure with ivabradine studY (EDIFY) Investigators, De Pasquale, C., & Heddle, W. (2017). Effect of ivabradine in patients with heart failure with preserved ejection fraction: the EDIFY randomized placebo-controlled trial. European Journal of Heart Failure, 19(11), 1495-1503. https://doi.org/10.1002/ejhf.876