TY - JOUR TI - Novel endotypes in heart failure: effects on guideline-directed medical therapy AU - Tromp, J. AU - Ouwerkerk, W. AU - Demissei, B. G. AU - Anker, S. D. and AU - Cleland, J. G. AU - Dickstein, K. AU - Filippatos, G. AU - van der Harst, AU - P. AU - Hillege, H. L. AU - Lang, C. C. AU - Metra, M. AU - Ng, L. L. and AU - Ponikowski, P. AU - Samani, N. J. AU - van Veldhuisen, D. J. AU - Zannad, AU - F. AU - Zwinderman, A. H. AU - Voors, A. A. AU - van der Meer, P. JO - EUROPEAN HEART JOURNAL-CARDIOVASCULAR PHARMACOTHERAPY PY - 2018 VL - 39 TODO - 48 SP - 4269-4276 PB - Oxford University Press SN - null TODO - 10.1093/eurheartj/ehy712 TODO - Heart failure; Phenotypes; Heterogeneity; Medication TODO - Aims We sought to determine subtypes of patients with heart failure (HF) with a distinct clinical profile and treatment response, using a wide range of biomarkers from various pathophysiological domains. Methods and results We performed unsupervised cluster analysis using 92 established cardiovascular biomarkers to identify mutually ex elusive subgroups (endotypes) of 1802 patients with HF and reduced ejection fraction (HFrEF) from the BIOSTAT-CHF project. We validated our findings in an independent cohort of 813 patients. Based on their biomarker profile, six endotypes were identified. Patients with endotype 1 were youngest, less symptomatic, had the lowest N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels and lowest risk for all-cause mortality or hospitalization for HF. Patients with endotype 4 had more severe symptoms and signs of HF, higher NT-proBNP levels and were at highest risk for all-cause mortality or hospitalization for HF [hazard ratio (HR) 1.4; 95% confidence interval (Cl) 1.1-1.8]. Patients with endotypes 2, 3, and 5 were better uptitrated to target doses of beta-blockers (P < 0.02 for all). In contrast to other endotypes, patients with endotype 5 derived no potential survival benefit from uptitration of angiotensin-converting enzyme-inhibitoriangiotensin-II receptor blocker and beta-blockers (P-interaction <0.001). Patients with endotype 2 (HR 1.29; 95% Cl 1.10-1.42) experienced possible harm from uptitration of beta-bockers in contrast to patients with endotype 4 and 6 that experienced benefit (P-interaction for all <0.001). Results were strikingly similar in the independent validation cohort. Conclusion Using unsupervised cluster analysis, solely based on biomarker profiles, six distinct endotypes were identified with remarkable differences in characteristics, clinical outcome, and response to uptitration of guideline directed medical therapy. ER -