Sodium Nitrite in Acute Myocardial Infarction
A Safety and Efficacy Evaluation of Sodium Nitrite Injection for the Prevention of Ischemia-Reperfusion Injury Associated With Acute Myocardial Infarction.
The purpose of this study is to determine whether the intravenous infusion of sodium nitrite safely prevents ischemia-reperfusion injury in subjects with acute myocardial infarction resulting in improved left ventricular function.
Despite reperfusion therapies, significant myocardial injury continues to occur from ischemic-reperfusion injury. Studies in animal models of acute myocardial infarction suggest that an infusion of sodium nitrite, which is nonenzymatically converted to nitric oxide in the setting of ischemia, significantly reduces ischemia-reperfusion injury resulting in smaller infarcts and improved left ventricular function. The objectives of this phase 2 trial are to determine the tolerability and safety of a 48-hour infusion of sodium nitrite in patients with an acute ST-segment elevation myocardial infarction receiving percutaneous coronary intervention. The efficacy of a 48-hour infusion of sodium nitrite will be determined by noninvasive imaging to determine infarct size and left ventricular function.
Subjects assigned to sodium nitrite will receive an initial infusion of 6 nmol/min/kg for 48 hours. After the first six subjects have been enrolled (3 active drug, 3 control) and if there are no dose limiting toxicities, additional cohorts of six subjects each will be randomized to escalating doses of sodium nitrite versus control for a total of 30 subjects.
Dose escalation of sodium nitrite.
Inclusion Criteria: Acute ST segment elevation myocardial infarction Eligible for percutaneous coronary intervention Exclusion Criteria: Cardiogenic shock Cardiac arrest Prior infarct in the infarct related artery Hemoglobinopathy, Glucose-6 Phosphate Dehydrogenase (G6PD) deficiency
|Event Type||Organ System||Event Term||Sodium Nitrite||Open Control|
Measured as percentage of left ventricle
Left ventricular infarct size by Magnetic Resonance Imaging (MRI). Calculated percentage of the left ventricular mass by MRI that has undergone infarction.