Gerasimos, Filippatos, Javed, Butler, Dimitrios, Farmakis, Faiez, Zannad, Anne Pernille, Ofstad, João Pedro, Ferreira, Jennifer B, Green, Julio, Rosenstock, Sven, Schnaidt, Martina, Brueckmann, Stuart J, Pocock, Milton, Packer, Stefan D, Anker, National and Kapodistrian University of Athens (NKUA), 'Attikon' University Hospital, Baylor Scott and White Research Institute, University of Mississippi Medical Center (UMMC), University of Cyprus [Nicosia] (UCY), Centre d'investigation clinique [Nancy] (CIC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Cardiovascular and Renal Clinical Trialists [Vandoeuvre-les-Nancy] (INI-CRCT), Institut Lorrain du Coeur et des Vaisseaux Louis Mathieu [Nancy], French-Clinical Research Infrastructure Network - F-CRIN [Paris] (Cardiovascular & Renal Clinical Trialists - CRCT ), Medical Department, Boehringer Ingelheim Norway KS, Asker, Oslo Diabetes Research Center, Centre d'investigation clinique plurithématique Pierre Drouin [Nancy] (CIC-P), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Faculdade de Medicina da Universidade do Porto (FMUP), Universidade do Porto = University of Porto, Duke University [Durham], Dallas Diabetes Research Center at Medical City, Boehringer Ingelheim Pharma GmbH & Co. KG, Medizinische Fakultät Mannheim, Boehringer Ingelheim International GmbH, London School of Hygiene and Tropical Medicine (LSHTM), Baylor College of Medecine, Imperial College London, Berlin-Brandenburg Center for Regenerative Medicine [Berlin, Germany] (BCRT), Charité - UniversitätsMedizin = Charité - University Hospital [Berlin], German Center for Cardiovascular Research (DZHK), Berlin Institute of Health (BIH), Wrocław Medical University, EMPEROR-Preserved (Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Preserved Ejection Fraction) was funded by the Boehringer Ingelheim and Eli Lilly and Company Diabetes Alliance. Graphical assistance was supported financially by Boehringer Ingelheim., and BOZEC, Erwan
Background: Empagliflozin improves outcomes in patients with heart failure with a preserved ejection fraction, but whether the effects are consistent in patients with and without diabetes remains to be elucidated. Methods: Patients with class II through IV heart failure and a left ventricular ejection fraction >40% were randomized to receive empagliflozin 10 mg or placebo in addition to usual therapy. We undertook a prespecified analysis comparing the effects of empagliflozin versus placebo in patients with and without diabetes. Results: Of the 5988 patients enrolled, 2938 (49%) had diabetes. The risk of the primary outcome (first hospitalization for heart failure or cardiovascular death), total hospitalizations for heart failure, and estimated glomerular filtration rate decline was higher in patients with diabetes. Empagliflozin reduced the rate of the primary outcome irrespective of diabetes status (hazard ratio, 0.79 [95% CI, 0.67, 0.94] for patients with diabetes versus hazard ratio, 0.78 [95% CI, 0.64, 0.95] in patients without diabetes; P interaction =0.92). The effect of empagliflozin to reduce total hospitalizations for heart failure was also consistent in patients with and without diabetes. The effect of empagliflozin to attenuate estimated glomerular filtration rate decline during double-blind treatment was also present in patients with and without diabetes, although more pronounced in patients with diabetes (1.77 in diabetes versus 0.98 mL/min/1.73m 2 in patients without diabetes; P interaction =0.01). Across these 3 end points, the effect of empagliflozin did not differ in patients with prediabetes or normoglycemia (33% and 18% of the patient population, respectively). When investigated as a continuous variable, baseline hemoglobin A1c did not modify the effects on the primary outcome ( P interaction =0.26). There was no increased risk of hypoglycemic events in either subgroup as compared with placebo. Conclusions: In patients with heart failure and a preserved ejection fraction enrolled in the EMPEROR-Preserved (Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Preserved Ejection Fraction), empagliflozin significantly reduced the risk of heart failure outcomes irrespective of diabetes status at baseline. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03057951.