Study to Evaluate the Efficacy, Safety and PK of Intravenous Single Injection LC28-0126 Immediately Before PCI in STEMI Patients

Evaluate the efficacy, Safety and Pharmacokinetics of Intravenous single injection LC28-0126 immediately before Percutaneous Coronary Intervention (PCI) in Patients with ST-segment Elevation Myocardial Infarction (STEMI).

Inclusion Criteria:

• Age between 20 and 75
• Within 12 hours after the onset of chest pain
• ST-segment elevation of more than 0.1 mV in two contiguous leads or new left bundle-branch block (LBBB) patients
• Signed for written informed consent

Exclusion Criteria:

• Left Main disease
• Multi-vessel disease