Allogeneic Hematopoietic Cell Transplantation Using Treosulfan-Based Conditioning for Treatment of Marrow Failure Disorders.
Publication Type:
Journal ArticleSource:
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation (2017)Abstract:
Hematopoietic cell transplantation (HCT) is effective in the treatment of inherited marrow failure disorders and other non-malignant diseases. Conventional myeloablative conditioning regimens have been associated with high transplant related mortality particularly in patients with co-morbid conditions. Here we report on 14 patients with marrow failure disorders (Shwachman-Diamond syndrome n=3, Diamond Blackfan anemia n=4, GATA2 deficiency n=2, paroxysmal nocturnal hemoglobinuria n=4, and an undefined marrow failure disorder n=1) who underwent HCT on a prospective phase II multi-center clinical trial. Patients were given HLA-matched related (n=2) or unrelated (n=12) grafts following conditioning with treosulfan (42 grams/m(2)), fludarabine (150 mg/m(2)), ± thymoglobulin (n=11; 6 mg/kg). All patients engrafted. At a median follow-up of 3 years, 13 patients are alive with complete correction of their underlying disease. These results indicate that the combination of treosulfan, fludarabine, and thymoglobulin is effective at establishing donor engraftment with a low toxicity profile and excellent disease-free survival in patients with marrow failure disorders.
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