1) Admission to hospital within 6 hrs of the onset of symptoms
2) Chest pain lasting for >= 30 min
3) ST-segment elevation of >= 0.2 mV in 2 or more contiguous precordial leads (V1-V4) on standard 12-lead electrocardiogram
4) TIMI flow grade 0/1 in left anterior descending artery (LAD) on diagnostic coronary angiography (CAG)
5) Written informed consent
1) Prior documented old myocardial infarction (MI) or a clinical history of definite MI
2) Left main trunk (LMT) stenosis >50%
3) Total occlusion of left circumflex artery (LCX) or right coronary artery (RCA)
4) Left bundle-branch block
5) Suspected acute aortic dissection
6) Cardiac arrest or cardiogenic shock
7) Thrombolytic therapy or coronary artery bypass grafting (CABG)
8) Hepatic and/or renal dysfunction
9) History of allergy or drug hypersensitivity
10) Pregnancy or nursing mothers or childbearing women
20age old over
79age old under
Both
Acute myocardial infarction
investigational material(s)
Generic name etc : TY-51924
INN of investigational material :
Therapeutic category code : 219 Other cardiovascular agents
Dosage and Administration for Investigational material : Intravenous injection
control material(s)
Generic name etc : Placebo
INN of investigational material :
Therapeutic category code : --- Other
Dosage and Administration for Investigational material : Intravenous injection
1) Myocardial salvage index at 3-5 days after percutaneous coronary intervention (PCI)
2) Incidence of adverse events and side effects for 7 days after PCI
1) Events for 3 months after PCI
2) Incidence of adverse events and side effects for 3 months after PCI
3) MI size, left ventricular function and 12-lead electrocardiogram