Targeted busulfan and fludarabine-based conditioning for bone marrow transplantation in chronic granulomatous disease
- Affiliations
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- 1Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea. kanghj@snu.ac.kr
- 2Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
- 3Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea.
- 4Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine, Seoul, Korea.
Abstract
- Chronic granulomatous disease (CGD) is a primary immunodeficiency disease caused by impaired phagocytic function. Hematopoietic stem cell transplantation (HSCT) is a definitive cure for CGD; however, the use of HSCT is limited because of associated problems, including transplantation-related mortality and engraftment failure. We report a case of a patient with CGD who underwent successful HSCT following a targeted busulfan and fludarabine reduced-toxicity myeloablative conditioning. Intravenous busulfan was administered once daily for 4 consecutive days (days -8 to -5), and the target area under the curve was 75,000 µg·hr/L. Fludarabine (40 mg/m2) was administered once daily for 6 consecutive days from days -8 to -3. Antithymocyte globulin (2.5 mg/kg/day) was administered from days -4 to -2. The patient underwent successful engraftment and did not have any severe toxicity related to the transplantation. Conditioning with a targeted busulfan and fludarabine regimen could provide a better outcome for HSCT in CGD, with close regulation of the busulfan dose.