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Nonmyeloablative Peripheral Blood Mobilized Hematopoietic Precursor Cell Transplantation for Sickle Cell Disease and Beta-thalassemia in People With Higher Risk of Transplant Failure
Sponsor: National Heart, Lung, and Blood Institute (NHLBI)
Summary
Background: \- Some sickle cell disease or beta-thalassemia can be cured with transplant. Researchers want to test a variation of transplant that uses low dose radiation and a combination of immunosuppressive drugs. They want to know if it helps a body to better accept donor stem cells. Objectives: \- To see if low dose radiation (300 rads), oral cyclophosphamide, pentostatin, and sirolimus help a body to better accept donor stem cells. Eligibility: \- People 4 and older with beta-thalassemia or sickle cell disease that can be cured with transplant, and their donors. Design: * Participants and donors will be screened with medical history, physical exam, blood test, tissue and blood typing, and bone marrow sampling. They will visit a social worker. * Donors: * may receive an intravenous (IV) tube in their groin vein. * will receive a drug injection daily for 5 or 6 days to move the blood stem cells from the bone marrow into general blood circulation. * will undergo apheresis: an IV is put into a vein in each arm. Blood is taken from one arm, a machine removes the white blood cells that contain blood stem cells, and the rest is returned through the other arm. * Participants: * may undergo red cell exchange procedure. * will remain in the hospital for about 30 days. * will receive a large IV line that can stay in their body from transplant through recovery. * will receive a dose of radiation, and transplant related drugs by mouth or IV. * will receive blood stem cells over 8 hours by IV. * will take neuropsychological tests and may complete questionnaires throughout the transplant process. * must stay near NIH for 4 months. They will visit the outpatient clinic weekly.
Official title: Nonmyeloablative Peripheral Blood Mobilized Hematopoietic Precursor Cell Transplantation for Sickle Cell Disease and Beta-Thalassemia in Individuals With Higher Risk of Transplant Failure
Key Details
Gender
All
Age Range
4 Years - 80 Years
Study Type
INTERVENTIONAL
Enrollment
56
Start Date
2014-04-21
Completion Date
2027-12-31
Last Updated
2025-03-11
Healthy Volunteers
Yes
Interventions
Alemtuzumab
Immunosuppressant
Sirolimus
Immunosuppressant
Cyclophosphamide
Immunosuppressant
Pentostatin
Immunosuppressant
Radiotherapy
Immunosuppressant and myelosuppressant
Filgrastim
mobilize peripheral blood stem cells for apheresis collection
Locations (1)
National Institutes of Health Clinical Center
Bethesda, Maryland, United States