Heart Failure, Myocardial Infarction
Conditions
Keywords
Heart Failure, Myocardial Infarction
Brief summary
When a patient has a heart attack, a blockage occurs in a coronary artery that delivers oxygen to the heart muscle. The heart muscle may weaken, causing heart failure. The body naturally makes a protein called insulin-like growth factor-1 (IGF-1) that may protect the heart muscle cells from dying and may prevent heart failure or lessen the damage that occurs. IGF-1 is also available as a drug called mecasermin. In this study, heart attack patients will be given either a dose of mecasermin or a placebo (inactive treatment) after their coronary artery has been opened by a stent. The purpose of the study will be to evaluate the safety of the therapy and to test if the therapy will prevent or lessen heart failure by evaluating a cardiac magnetic resonance imaging (MRI) taken one day and eight weeks after the heart attack.
Interventions
Intracoronary bolus
Intracoronary bolus
Sponsors
Study design
Eligibility
Inclusion criteria
* Age 18 - 75 * Presents within 2-12 hours of at least 30 minutes of myocardial ischemic pain * ECG evidence of myocardial infarction * Undergoing percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction * Left ventricular ejection fraction during PCI of 40% or less * TIMI flow grade 3 in the infarct-related artery following reperfusion and stenting
Exclusion criteria
* History of prior myocardial infarction * Prior history of heart failure, left ventricular dysfunction or cardiomyopathy * Active or suspected neoplasia * Known impaired liver function * Cardiogenic shock * Estimated glomerular filtration rate \< 45 ml/min/1.73m2 * History of hypoglycaemia requiring hospitalisation * History of primary insulin-like growth factor-1 deficiency or growth hormone disorders * Contraindication to cardiac magnetic resonance imaging * Pregnancy or nursing mothers * Known allergy to study drug or any of its inactive ingredients * Treatment with another investigational agent within 30 days of enrolment * Subjects unable or unwilling to comply with follow-up requirements of study * Subjects unable to provide written informed consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Serum glucose measurement | 30 minutes after study drug administration | Safety outcome measure |
| Percent change in global left ventricular ejection fraction (LVEF) measured by quantitative cardiac magnetic resonance imaging (MRI) | Baseline and 8 weeks | Efficacy outcome measure |
Countries
Ireland, Netherlands