The purpose of this study is to evaluate the efficacy and safety of a single transendocardial delivery in the cardiac catheterization laboratory of human bone marrow-derived allogeneic MPCs (rexlemestrocel-L) for improvement in clinical outcomes (heart failure major adverse cardiac events [HF-MACE]), preventing further adverse cardiac remodeling (left ventricular end systolic volume [LVESV] and left ventricular end-diastolic volume [LVEDV]), and increasing exercise capacity (six-minute walking test [6MWT]) in patients with chronic HF due to LV systolic dysfunction of either ischemic or nonischemic etiology who have received optimal medical/revascularization therapy.
The primary objective of this study is to determine whether transendocardial delivery of allogeneic human bone marrow-derived mesenchymal precursor cells (MPCs [rexlemestrocel-L]) is effective in the treatment of chronic heart failure (HF) due to left ventricular (LV) systolic dysfunction.