Purified CD34+ Hematopoietic Stem Cell Transplantation From Alternate Donors for Patients With Severe Aplastic Anemia
Status:
Completed
Trial end date:
2007-05-01
Target enrollment:
Participant gender:
Summary
This study is for patients with Severe Aplastic Anemia (SAA). A stem cell transplant from a
genetically matched sibling donor can help or cure this disease in 85 to 100 percent of
patients. Stem cells are immature blood cells that grow to become red blood cells, white
blood cells or platelets. A genetic "match" means a brother or sister has same immune type
(HLA type) as the patient. Unfortunately, few patients have a matched sibling donor. The
chance of negative outcomes is much higher with other types of donors.
This study will test the success of a new approach to stem cell transplant for SAA. Patients
in this study will receive drugs and radiation treatment to destroy their diseased bone
marrow and to prepare them for stem cell transplant. Bone marrow is the tissue inside the
bones where stem cells are made.Stem cells will be harvested from the blood or bone marrow of
genetically matched unrelated donors or partially matched family donors. The stem cells will
be filtered using a new device that is currently under study. The patients will receive large
doses of the filtered stem cells (stem cell graft). Researchers want to find out how the
study treatment affects patients, the disease, and the chances for survival.