The Effect of Sacubitril/valsartan Versus Ramipril on Left Ventricular Function and Remodeling in Patients with Ischemic Heart Failure with Mid-range Ejection Fraction

Summary

Heart failure with moderately reduced ejection fraction (HFmrEF) is a frequent disease associated with significant morbidity and mortality and therefore requires effective therapies that may improve clinical outcomes. The most common reason of HFmrEF is ischemic injury, usually caused by myocardial infarction, that may lead to left ventricular remodeling and systolic dysfunction, accompanied by symptoms of heart failure. Therefore, the anti-remodeling therapies may effectively improve clinical outcomes. Recently, sacubitril/valsartan - the angiotensin receptor neprilysin inhibitor suppressing the renin-angiotensin-aldosterone system and enhancing the effect of natriuretic peptides - has been introduced in the treatment of heart failure. To date, this drug was found to be clinically beneficial in patients with heart failure with reduced ejection fraction (HFrEF), however has not been tested in the group of patients with HFmrEF. The aim of the study is to evaluate effectiveness of sacubitril/valsartan as compared with ramipril on left ventricular remodeling and function in patients with ischemic HFmrEF. Patients with ischemic HFmrEF, New York Heart Association class II-IV symptoms, an elevated plasma natriuretic peptide level and the left ventricular ejection fraction (LVEF) of 40-49 % will be enrolled in this prospective, multicenter, randomized, double-blind, active-controlled study. Initially, patients will enter a single-blind ramipril run-in period (titrated to 5 mg bid), followed by a sacubitril/valsartan run-in period (100 mg titrated to 200 mg bid). A total of 666 patients tolerating both periods will be randomized 1:1 to either ramipril 10 mg bid or sacubitril/valsartan 200 mg bid. The primary endpoint will be the change of left ventricular end-systolic volume index within 12-month of treatment as measured by magnetic resonance imaging. The main secondary endpoints include the change of left ventricular end-diastolic volume index within 12-month of treatment, the change of LVEF within 12-month of treatment, 12-month composite endpoint of cardiovascular death or heart failure requiring hospitalization, 12-month cardiovascular death, 12-month heart failure requiring hospitalization, time to death or heart failure requiring hospitalization or mortality rate within 12-month of treatment. This study may determine the place of sacubitril/valsartan as an alternative to ramipril in the treatment of patients with ischemic HFmrEF in order to prevent further left ventricular remodeling and to improve its systolic function.

Eligibility

Inclusion Criteria:

* Written consent to participate in the study, expressed prior to any procedures related to the study.
* Age 18 and over.
* Symptomatic HF in NYHA class II to IV of ischemic etiology.
* Left ventricular ejection fraction at screening visit ranged from 40-49%.
* Elevated concentration of NT-proBNP natriuretic peptide ≥125 pg/ml.
* Features of a structural / functional disease of the left ventricle.
* Optimal pharmacotherapy with ACEI or ARB and beta-blocker, unless they are contraindicated.

Exclusion Criteria:

* History of hypersensitivity or allergy to any of the drugs tested or drugs of similar chemical class, ACEIs, ARBs or neprilysin inhibitors.
* Previous history of intolerance to recommended ACEI or ARB target doses.
* Known history of angioedema.
* Requirement of simultaneous treatment with ACEI and ARB.
* Acute decompensated HF within 6 weeks prior to screening visit.
* Symptomatic hypotension systolic blood pressure \<100 mmHg at screening visit.
* Current or previous treatment with sacubitril / valsartan.
* Estimated creatinine clearance \<30 ml / min / 1.73 m2 at screening visit.
* Serum potassium \>5.2 mmol / L at screening visit.
* Acute coronary syndrome or elective revascularization within 6 weeks prior to screening.
* Stroke, transient ischemic attack, carotid angioplasty, heart surgery, or any other major cardiovascular surgery in the 3 months prior to screening.
* Implantation of a cardioverter defibrillator, pacemaker, or resynchronization therapy device incompatible with MRI.
* Fixed atrial fibrillation.

Conditions2

Interventions2

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