Brief Summary:

This is a phase II, randomized, placebo-controlled clinical trial designed to assess feasibility, safety, and effect of autologous bone marrow-derived mesenchymal stem cells (MSCs) and c-kit+ cardiac stem cells (CSCs) both alone and in combination (Combo), compared to placebo (cell-free Plasmalyte-A medium) as well as each other, administered by transendocardial injection in subjects with ischemic cardiomyopathy.

This is a randomized, placebo-controlled clinical trial designed to evaluate the feasibility, safety, and effect of Combo, MSCs alone, and CSCs alone compared with placebo as well as each other in subjects with heart failure of ischemic etiology. Following a successful lead-in phase, a total of one hundred forty-four (144) subjects will be randomized (1:1:1:1) to receive Combo, MSCs, CSCs, or placebo. After randomization, baseline imaging, relevant harvest procedures, and study product injection, subjects will be followed up at 1 day, 1 week, 1 month, 3 months, 6 months and 12 months post study product injection. All subjects will receive study product injection (cells or placebo) using the NOGA XP Mapping and Navigation System. Subjects will have delayed-enhanced magnetic resonance imaging (DEMRI) scans to assess scar size and LV function and structure at baseline and at 6 and 12 months post study product administration. All endpoints will be assessed at the 6 and 12 month visits which will occur 180 30 days and 365 30 days respectively from the day of study product injection (Day 0). For the purpose of the endpoint analysis and safety evaluations, the Investigators will utilize an "intention-to-treat" study population, however an as treated analysis will also be conducted.

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Combination of Mesenchymal and C-kit+ Cardiac Stem Cells ...

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