Safety and Efficacy Evaluation of Intracoronary Infusion of Allogeneic Human Cardiac Stem Cells in Patients With AMI

Development of myocardial reparative therapy for the treatment of acute ischemic cardiac disease, based on the intracoronary administration of allogeneic Cardiac Stem Cells (CSCs) to ameliorate myocardial cell death and promote cardio-regeneration. The study comprises two phases: 1. Initial dose-escalation open-label safety phase comprising 6 patients. Escalation will start with the Maximum Recommended Safe Dose (MRSD) calculated from Non-Observed Adverse Events Level (NOAEL) and it is expected to finish with the target dose (TD). There will be no placebo group for this initial phase. 2. Randomized double-blind placebo-controlled safety and efficacy phase in which the TD will be injected if the dose-escalation phase is completed successfully.