- Patients must at least be treated with an ACE-i at a stable dose (at least enalapril 10 mg daily or any other ACE-i, e.g. ramipril, quinapril, lisinopril, fosinopril, perindopril, trandolapril; on equivalent doses, or maximum tolerated dose) or if intolerant to ACE-i with ARB therapy (Candesartan 8 mg daily or any other ARB in equivalent dose, or maximum tolerated dose) for at least 4 weeks prior to visit 1.