A Phase I/II Trial of Reduced Intensity Conditioning and Familial HLA-Mismatched Bone Marrow Transplantation in Children With Non-Malignant Disorders
Washington University School of Medicine
Summary
This study is designed to estimate the efficacy and toxicity of familial HLA mismatched bone marrow transplants in patients with non-malignant disease who are less than 21 years of age and could benefit from the procedure.
Description
Patients \< 21 years of age with a non-malignant disorder benefited by hematopoietic stem cell transplant will receive a reduced intensity conditioning regimen consisting of hydroxyurea, alemtuzumab, fludarabine, thiotepa, and melphalan. This will be followed by a familial HLA-mismatched bone marrow transplant. The primary objective is to establish safety and donor cell engraftment at 100 days and 1 year post-transplant.
Eligibility
- Age range
- 0–21 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Nonmalignant disorder requiring bone marrow transplant including bone marrow failure syndromes, metabolic disorders, immunologic disorders, or hemoglobinopathy * For patients with sickle cell disease, must have one of the following severe manifestations: 1. Overt or silent stroke or persistently elevated transcranial doppler velocities despite transfusion therapy 2. Recurrent acute chest syndrome with significant respiratory compromise each time 3. Sickle nephropathy 4. Recurrent admissions for vaso-occlusive episodes resulting in prolonged opioid use and poor q…