75-year-old woman with a history of heart failure with an ejection fraction of 25% who comes for a check-up, being stable in NYHA functional class III. She has an implanted cardioverter defibrillator. Current medication consists of lisinopril, carvedilol and spironolactone at maximum tolerated doses. On physical examination he has BP 118/74 mmHg, HR 78 bpm. On cardiac auscultation a third tone is detected, pulmonary auscultation is normal and there is no edema. Which of the following is the most appropriate step in his management?
Discontinue lisinopril and initiate sacubitril/valsartan.
Add sacubitril/valsartan.
Add ivabradine.
Discontinue lisinopril and start sacubitril/valsartan.
Discontinue carvedilol and start ivabradine.
Discontinue lisinopril and initiate sacubitril/valsartan.