1. Acute Lymphoblastic Leukemia in Children: Better Transplant Outcomes After Total Body Irradiation-based Conditioning
- Author
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Marcin Hennig, Katarzyna Muszyńska-Rosłan, Monika Pogorzała, Mariusz Wysocki, Tomasz Ociepa, Monika Richert-Przygońska, Krzysztof Czyżewski, Ninela Irga-Jaworska, Jan Styczyński, Ewa Marquardt, Janusz Winiecki, Przemyslaw Galazka, Marcin Płonowski, Joanna Konieczek, Robert Dębski, Krzysztof Roszkowski, Katarzyna Gagola, and Monika Lecka
- Subjects
Oncology ,Cancer Research ,medicine.medical_specialty ,Transplantation Conditioning ,Lymphoblastic Leukemia ,medicine.medical_treatment ,Graft vs Host Disease ,Disease-Free Survival ,General Biochemistry, Genetics and Molecular Biology ,hemic and lymphatic diseases ,Internal medicine ,medicine ,Humans ,Risk factor ,Child ,Retrospective Studies ,Pharmacology ,Chemotherapy ,Hematopoietic cell ,business.industry ,Incidence (epidemiology) ,Hematopoietic Stem Cell Transplantation ,Precursor Cell Lymphoblastic Leukemia-Lymphoma ,Total body irradiation ,Transplantation ,surgical procedures, operative ,Conditioning ,business ,Whole-Body Irradiation ,Research Article - Abstract
Background/Aim: Comparison of transplant outcomes in long-term follow-up of children after total body irradiation (TBI)- or chemotherapy-based conditioning allogeneic hematopoietic cell transplantation (allo-HCT). Patients and Methods: Patients undergoing allo-HCT for Acute lymphoblastic leukemia (ALL) conditioned either with TBI (n=55) or chemotherapy (n=84) were compared. The following transplant outcomes were analyzed: overall survival (OS), event-free survival (EFS), relapse incidence (RI), and graft-versus-host-disease (GVHD)-free-relapse-free survival (GRFS). Results: All analyzed long-term transplant outcomes were significantly better for patients conditioned with TBI at 2 years after transplant. OS at 2 years was 84% after TBI and 60.5% after chemotherapy-conditioning (p=0.005). Risk factor analysis showed that two factors, TBI-based conditioning and transplant in first remission of ALL, significantly improved OS, EFS, GRFS, and decreased RI. Conclusion: TBI-based conditioning before allogeneic HCT in children with acute lymphoblastic leukemia provides significantly better transplant outcomes, when compared to chemotherapy-based conditioning.
- Published
- 2021