Abstract
A nonmyeloablative conditioning regimen consisting of fludarabine (FLU) and 2 Gy TBI has been used extensively and with substantial engraftment success without promoting excessive nonrelapse mortality in medically infirm patients requiring hematopoietic cell transplantation. In this paper, we studied this same low-toxicity regimen as a means of promoting engraftment of unrelated donor hematopoietic cell transplantation in patients with Fanconi anemia (FA). All patients tolerated the regimen well with no mucositis or other severe toxicities. Of six patients transplanted, five achieved stable mixed or full donor chimerism. Acute and chronic GVHD occurred in four and three patients, respectively. Three patients are alive and well at a median of 45.9 (range, 20.9–68.1) months after transplant. In summary, this FLU-based regimen facilitates stable engraftment of unrelated PBSCs, but is associated with significant chronic GVHD.
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Acknowledgements
We thank the patients and families enrolled in this study. We also thank our in-patient and outpatient clinical transplant teams for the substantial care of our patients, as well as the research nurses and data managers for coordination of this trial. We appreciate the help of Helen Crawford, Bonnie Larson and Sue Carbonneau for paper preparation. MST received salary support from the Fanconi Anemia Research Fund Inc. This trial was also supported in part by NIH/NHLBI HL36444 and CA15704.
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Thakar, M., Kurre, P., Storb, R. et al. Treatment of Fanconi anemia patients using fludarabine and low-dose TBI, followed by unrelated donor hematopoietic cell transplantation. Bone Marrow Transplant 46, 539–544 (2011). https://doi.org/10.1038/bmt.2010.154
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DOI: https://doi.org/10.1038/bmt.2010.154
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