Peri-treatment of SGLT-2 Inhibitor on Myocardial Infarct Size and Remodeling Index in Patients With Acute Myocardial Infarction and High Risk of Heart Failure Undergoing Percutaneous Coronary Intervention

Prior treatment

• 1\) Target lesion is not suitable for PCI by operator's decision 2) Patients requiring cardiopulmonary resuscitation due to cardiac arrest before randomization 3) Rescue PCI after thrombolysis or facilitated PCI 4) Previous MI 5) Previous history of heart failure 6) Patients who have been taking SGLT-2 inhibitor 7) Patients with glomerular filtration rate \< 30ml/min/1.73m2 or on dialysis 8) Type 1 diabetes mellitus (DM) 9) Known hypersensitivity or contraindications to study medications (SGLT-2 inhibitor) 10) Pregnant or lactating women 11) Non-cardiac co-morbid conditions are present with life expectancy \<1 year or that may result in protocol non-compliance (per site investigator's medical judgment)

• 1\) Subject must be at least 18 years of age 2) Subject is able to verbally confirm understandings of risks, benefits and treatment alternatives of receiving SGLT-2 inhibitor and he/she or his/her legally authorized representative provides written informed consent prior to any study related procedure 3) Diagnosis of Type 1 myocardial infarction (MI) (ST-segment elevation MI \[STEMI\] or Non-ST-segment elevation MI \[NSTEMI\]) i) Detection of a rise and/or fall of cardiac troponin values with at least 1 value above the 99th percentile upper reference limit ii) Symptoms or electrocardiographic changes suggesting myocardial ischemia 4) High risk of heart failure (at least one of the two criteria below are met) i) Left ventricular ejection fraction \< 50% ii) Symptoms or signs of pulmonary congestion requiring treatment