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Expanded Umbilical Cord Blood Product HSC835 in Treating Patients with Hematological Malignancies

Trial Status: complete

This phase I/II trial studies the side effects of expanded umbilical cord blood product HSC835 and to see how well it works in treating patients with hematological malignancies. Giving chemotherapy, such as fludarabine phosphate and cyclophosphamide, and total body irradiation before an umbilical cord blood transplant helps stop the growth of cancer and abnormal cells and helps stop the patient's immune system from rejecting the donor's stem cells. When certain stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Removing the T cells from the donor cells before transplant may stop this from happening.