Single or Repeated Intravenous Administration of umbiliCAl Cord Mesenchymal sTrOmal Cells in Ischemic Cardiomyopathy

This is a Phase IIA, randomized, double blind, placebo controlled, multicenter study designed to assess the safety, feasibility, and efficacy of umbilical cord derived mesenchymal stromal cells (UC MSCs, stem cells), administered intravenously (IV) as a single dose or repeated doses, in patients with ischemic cardiomyopathy (ICM) (see summary in Figure 1). A total of 60 participants will be assigned in a random fashion to three groups on a 1:1:1 basis: control, single dose, and repeated doses. All patients will receive four study product infusions (SPIs) 2 months apart. SPIs (performed in a double blind fashion) will consist of either UC MSCs (stem cells) or placebo (based on randomization), infused by the IV route. Patients in the control group will receive four doses of placebo. Patients in the single dose group will receive one dose of UC MSCs (stem cells) followed by three doses of placebo. Patients in the repeated dose group will receive four doses of UC MSCs (stem cells). A dose of UC MSCs will consist of 100 million cells suspended in 60 mL, infused at a rate of 2 mL/min. A dose of placebo will consist of an equivalent volume of Plasma Lyte A supplemented with 1% human serum albumin (HSA). After each SPI, patients will be monitored for a minimum of 2 hours and then examined at 1 week and 2 months. After the fourth SPI, patients will be followed for 6 months to complete all safety and efficacy assessments. The UC MSCs will be derived from UC tissue obtained from a healthy pregnant woman at the time of caesarean delivery. The cells will be manufactured at the Interdisciplinary Stem Cell Institute at the University of Miami, Miller School of Medicine and then shipped to the Site for administration.