Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional
Official Title: A Two Step Approach to Non-Myeloablative Allogeneic Hematopoietic Stem Cell Transplantation for Patients With Hematologic Malignancies
Brief Summary: This clinical trial studies the use of reduced intensity chemotherapy and radiation therapy before donor stem cell transplant in treating patients with hematologic malignancies. Giving low doses of chemotherapy, such as cyclophosphamide and fludarabine phosphate, before a donor stem cell transplant may help stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. The donated stem cells may replace the patient's immune cells and help destroy any remaining cancer cells (graft-versus-tumor effect). Reducing the intensity of the chemotherapy and radiation may also reduce the side effects of the donor stem cell transplant.