Acute Lymphoblastic Leukemia in Children: Better Transplant Outcomes After Total Body Irradiation-based Conditioning.

Autor: Styczynski J; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland; jstyczynski@cm.umk.pl., Debski R; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland., Czyzewski K; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland., Gagola K; Regional Blood Transfusion Center (RCKiK), Bydgoszcz, Poland., Marquardt E; Regional Blood Transfusion Center (RCKiK), Bydgoszcz, Poland., Roszkowski K; Oncology Center, Bydgoszcz, Poland., Winiecki J; Oncology Center, Bydgoszcz, Poland., Irga-Jaworska N; Department of Pediatric Hematology and Oncology, Medical University, Gdansk, Poland., Hennig M; Department of Pediatric Hematology and Oncology, Medical University, Gdansk, Poland., Muszynska-Roslan K; Department of Pediatrics, Oncology and Hematology, Medical University, Bialystok, Poland., Plonowski M; Department of Pediatrics, Oncology and Hematology, Medical University, Bialystok, Poland., Ociepa T; Department of Pediatrics, Hemato-Oncology and Gastroenterology, Pomeranian Medical University, Szczecin, Poland., Lecka M; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland., Konieczek J; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland., Galazka P; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland., Pogorzala M; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland., Richert-Przygonska M; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland., Wysocki M; Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University Torun, Jurasz University Hospital 1, Bydgoszcz, Poland.
Jazyk: angličtina
Zdroj: In vivo (Athens, Greece) [In Vivo] 2021 Nov-Dec; Vol. 35 (6), pp. 3315-3320.
DOI: 10.21873/invivo.12627
Abstrakt: 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.
(Copyright © 2021 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)
Databáze: MEDLINE