• Michael Böhm, Robin Young, Pardeep S Jhund, Scott D Solomon, Jianjian Gong, Martin P Lefkowitz, Adel R Rizkala, Jean L Rouleau, Victor C Shi, Karl Swedberg, Michael R Zile, Milton Packer, and McMurray John J V JJV British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, UK..
• Klinik für Innere Medizin III, Universität des Saarlandes, Universitätsklinikum des Saarlandes, Homburg, Saar, Germany.
• Eur. Heart J. 2017 Apr 14; 38 (15): 1132-1143.

BackgroundCompared to heart failure patients with higher systolic blood pressure (SBP), those with lower SBP have a worse prognosis. To make matters worse, the latter patients often do not receive treatment with life-saving therapies that might lower blood pressure further. We examined the association between SBP and outcomes in the Prospective Comparison of angiotensin receptor-neprilysin inhibitor (ARNI) with an angiotensin-converting enzyme (ACE) inhibitor to Determine Impact on Global Mortality and Morbidity in Heart Failure trial (PARADIGM-HF), as well as the effect of sacubitril/valsartan, compared with enalapril, according to baseline SBP.MethodsWe analysed the effect of treatment on SBP and on the primary composite outcome (cardiovascular death or heart failure hospitalization), its components and all-cause death. We examined baseline SBP as a categorical (<110, 110 to < 120, 120 to < 130, 130 to < 140 and ≥140 mmHg) and continuous variable, as well as average in-trial SBP and time-updated SBP.FindingsAll-cause and cardiovascular mortality rates were highest in patients with the lowest SBP whereas there was a U-shaped relationship between SBP and the rate of heart failure hospitalization. The benefit of sacubitril/valsartan over enalapril was consistent across all baseline SBP categories for all outcomes. For example, the sacubitril/valsartan versus enalapril hazard ratio for the primary endpoint was 0.88 (95%CI 0.74-1.06) in patients with a baseline SBP <110 mmHg and 0.81 (0.65-1.02) for those with a SBP ≥140 mmHg (P for interaction = 0.55). Symptomatic hypotension, study drug dose-reduction and discontinuation were more frequent in patients with a lower SBP.InterpretationIn PARADIGM-HF, patients with lower SBP at randomization, notably after tolerating full doses of both study drugs during a run-in period, were at higher risk but generally tolerated sacubitril/valsartan and had the same relative benefit over enalapril as patients with higher baseline SBP.Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2017. For Permissions, please email: journals.permissions@oup.com.

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