Mikhail N. Kosiborod, Christiane E. Angermann, Sean P. Collins, John R. Teerlink, Piotr Ponikowski, Jan Biegus, Josep Comin-Colet, João Pedro Ferreira, Robert J. Mentz, Michael E. Nassif, Mitchell A. Psotka, Jasper Tromp, Martina Brueckmann, Jonathan P. Blatchford, Afshin Salsali, Adriaan A. Voors, Saint Luke's Mid America Heart Institute, University of Missouri [Kansas City] (UMKC), University of Missouri System, University of New South Wales [Sydney] (UNSW), University Hospital of Würzburg, University of Würzburg = Universität Würzburg, Vanderbilt University Medical Center [Nashville], Vanderbilt University [Nashville], University of California [San Francisco] (UC San Francisco), University of California (UC), Veterans Affairs Medical Center, San Francisco, California, University of Wrocław [Poland] (UWr), Institut d'Investigació Biomèdica de Bellvitge [Barcelone] (IDIBELL), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Centre d'investigation clinique plurithématique Pierre Drouin [Nancy] (CIC-P), 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)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), 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 ), Faculdade de Medicina da Universidade do Porto (FMUP), Universidade do Porto = University of Porto, Duke University Medical Center, Inova Heart and Vascular Institute, Saw Swee Hock School of Public Health [Singapore, Singapore], National University of Singapore (NUS), Boehringer Ingelheim International GmbH, Elderbrook Solutions GmbH on behalf of Boehringer Ingelheim Pharma GmbH & Co. KG, Boehringer Ingelheim Pharmaceuticals, Inc, Ridgefield, University Medical Center Groningen [Groningen] (UMCG), The EMPULSE (EMPagliflozin in patients hospitalized with acUte heart faiLure who have been StabilizEd) trial was funded by the Boehringer Ingelheim and Eli Lilly and Company DiabetesAlliance, BOZEC, Erwan, and Cardiovascular Centre (CVC)
Background: Patients hospitalized for acute heart failure experience poor health status, including a high burden of symptoms and physical limitations, and poor quality of life. SGLT2 (sodium-glucose cotransporter 2) inhibitors improve health status in chronic heart failure, but their effect on these outcomes in acute heart failure is not well characterized. We investigated the effects of the SGLT2 inhibitor empagliflozin on symptoms, physical limitations, and quality of life, using the Kansas City Cardiomyopathy Questionnaire (KCCQ) in the EMPULSE trial (Empagliflozin in Patients Hospitalized With Acute Heart Failure Who Have Been Stabilized). Methods: Patients hospitalized for acute heart failure were randomized to empagliflozin 10 mg daily or placebo for 90 days. The KCCQ was assessed at randomization and 15, 30, and 90 days. The effects of empagliflozin on the primary end point of clinical benefit (hierarchical composite of all-cause death, heart failure events, and a 5-point or greater difference in KCCQ Total Symptom Score [TSS] change from baseline to 90 days) were examined post hoc across the tertiles of baseline KCCQ-TSS. In prespecified analyses, changes (randomization to day 90) in KCCQ domains, including TSS, physical limitations, quality of life, clinical summary, and overall summary scores were evaluated using a repeated measures model. Results: In total, 530 patients were randomized (265 each arm). Baseline KCCQ-TSS was low overall (mean [SD], 40.8 [24.0] points). Empagliflozin-treated patients experienced greater clinical benefit across the range of KCCQ-TSS, with no treatment effect heterogeneity (win ratio [95% CIs] from lowest to highest tertile: 1.49 [1.01–2.20], 1.37 [0.94–1.99], and 1.48 [1.00–2.20], respectively; P for interaction=0.94). Beneficial effects of empagliflozin on health status were observed as early as 15 days and persisted through 90 days, at which point empagliflozin-treated patients experienced a greater improvement in KCCQ TSS, physical limitations, quality of life, clinical summary, and overall summary (placebo-adjusted mean differences [95% CI]: 4.45 [95% CI, 0.32–8.59], P =0.03; 4.80 [95% CI, 0.00–9.61], P =0.05; 4.66 [95% CI, 0.32–9.01], P =0.04; 4.85 [95% CI, 0.77–8.92], P =0.02; and 4.40 points [95% CI, 0.33–8.48], P =0.03, respectively). Conclusions: Initiation of empagliflozin in patients hospitalized for acute heart failure produced clinical benefit regardless of the degree of symptomatic impairment at baseline, and improved symptoms, physical limitations, and quality of life, with benefits seen as early as 15 days and maintained through 90 days. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT0415775.