Valsartan/Sacubitril for Treatment of Hfref: A Single Center's Paradigm

Abstract

PARADIGM-HF compared valsartan/sacubitril (ARNI) with enalapril in symptomatic patients with heart failure with reduced ejection fraction (HFrEF) (1). It was stopped early after the boundary for overwhelming benefit in favor of ARNI had been reached. Patients taking ARNI had decreased symptoms, risk of HF hospitalization and all-cause and cardiovascular mortality. We sought to describe our center’s initial year of experience with this novel agent. A retrospective chart review was completed of all patients in our advanced HF clinic who were prescribed ARNI between August 2015 and October 2016. Outcomes data were collected through August 2017. Consistent with the Food and Drug Administration (FDA) indication, patients treated had NYHA class II, III or IV HF symptoms with LVEF of 35% or less. The majority of those prescribed ARNI were able to initiate the medication. However, a significant proportion of patients (26.4%) had to discontinue ARNI due to a variety of reasons, most commonly symptomatic hypotension (31.0%) and insufficient insurance coverage (31.0%). Only 30.5% of patients successfully treated reached the maximum dose; in 85% of these patients, hypotension limited up titration of therapy. PARADIGM-HF demonstrated benefit of ARNI therapy over enalapril in patients with HFrEF and therapy was well tolerated. In our real world experience, hypotension and lack of insurance coverage limited utilization. Further experience with this therapy in a non-trial setting will inform optimal patient selection and titration strategies. Expanded insurance coverage will be crucial to allow for patient access.