IK-1001 (Sodium Sulfide (Na2S) for Injection) in Subjects With Acute ST-Segment Elevation Myocardial Infarction

IK-1001 is Na2S administered as an isotonic solution for intravenous (IV) injection or continuous infusion. IK-1001 will be administered as a 3-hour continuous IV infusion started \> 5 minutes but \< 20 minutes (approximately) prior to coronary artery reperfusion.

0.9% Sodium Chloride (NaCl) will be administered in the same manner as the experimental drug.