Comparative Assessment of Efficacy & Safety of Sacubitril/Valsartan Versus Ramipril in Patients With Renal Dysfunction Hospitalized With Acute Decompensated Heart Failure

Inclusion Criteria: All the following should be met: * Acute decompensated heart failure (ADHF) * Left ventricular ejection fraction (LVEF) below 40% * Renal dysfunction; defined as eGFR of 30mL/min/1.73m2 to less than 60mL/min/1.73m2 in relation to the level of urinary albumin/creatinine ratio (uACR) based on the 2024 Kidney Disease: Improving Global Outcomes (KDIGO) clinical practice guidelines for the evaluation and management of CKD. * A minimum blood pressure (BP) ≥ 105/60 mmHg. * Independent of any inotropic or vasopressor support in the previous 24 hours before inclusion and randomization. * No more than 72 hours had passed since admission to the heart failure unit. * Patients should have had a New York Heart Association (NYHA) functional class II-IV, in addition to symptoms of volume overload at the time of presentation to the emergency room. Exclusion Criteria: * Patients who were on sacubitril/valsartan or ACEI/ angiotensin receptor blocker (ARB) prior to inclusion. * Patients with AKI on presentation OR in the last 3 months OR had ≥ 2 hospital admissions in the last 12 months for AKI. * History of known or suspected hypersensitivity, contraindications, or intolerance to any of the study drugs including ACEI, ARB or sacubitril (neprilysin inhibitor). * Requirement for double treatment with both ACEI and ARB. * Serum potassium (K+) level ≥ 5.0 mmol/L at randomization. * A recent major adverse cardiovascular/cerebrovascular event within 1 month (acute coronary syndrome, stroke, transient ischemic attack, etc.). * Patients with hemodynamically significant primary valvular lesion. * Known hepatic impairment with a model for end-stage liver disease (MELD) score \>10. 23 * History of malignancy of any organ system within the past year with a life expectancy \< 1 year.