Current status of conditioning regimens in haploidentical hematopoietic cell transplantation

The development of effective prophylaxis strategies against graft-versus-host disease (GVHD) has contributed to the widespread use of haploidentical related hematopoietic cell transplantation (Haplo-HCT). Currently, GVHD prophylaxis containing posttransplant cyclophosphamide (PTCY) is considered the...

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Main Authors: Junichi Sugita, Masamitsu Yanada
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Hematology
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Online Access:https://www.tandfonline.com/doi/10.1080/16078454.2024.2332866
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author Junichi Sugita
Masamitsu Yanada
author_facet Junichi Sugita
Masamitsu Yanada
author_sort Junichi Sugita
collection DOAJ
description The development of effective prophylaxis strategies against graft-versus-host disease (GVHD) has contributed to the widespread use of haploidentical related hematopoietic cell transplantation (Haplo-HCT). Currently, GVHD prophylaxis containing posttransplant cyclophosphamide (PTCY) is considered the standard of care in Haplo-HCT, and recent studies have shown comparable results for PTCY-based Haplo-HCT and HCT from other donor sources. The conditioning regimen plays an important role in eradicating tumor cells to prevent disease relapse and suppressing the recipient’s immune system to facilitate engraftment. PTCY-based Haplo-HCT was initially developed using a nonmyeloablative conditioning regimen consisting of fludarabine, cyclophosphamide and low-dose total body irradiation, but high relapse rates reinforced the need to intensify the conditioning regimen. In this respect, various myeloablative and reduced-intensity conditioning regimens have been investigated. However, the optimal conditioning regimens for PTCY-based Haplo-HCT have not yet been established, and this issue needs to be addressed based on data from patients undergoing the procedure. In this article, we review the existing literature on conditioning regimens for PTCY-based Haplo-HCT and discuss future perspectives.
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spelling doaj-art-2085d317ba8e496cb99fc7f077cc58d62024-12-12T15:08:53ZengTaylor & Francis GroupHematology1607-84542024-12-0129110.1080/16078454.2024.2332866Current status of conditioning regimens in haploidentical hematopoietic cell transplantationJunichi Sugita0Masamitsu Yanada1Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, JapanDepartment of Hematology and Oncology, Nagoya City University East Medical Center, Nagoya, JapanThe development of effective prophylaxis strategies against graft-versus-host disease (GVHD) has contributed to the widespread use of haploidentical related hematopoietic cell transplantation (Haplo-HCT). Currently, GVHD prophylaxis containing posttransplant cyclophosphamide (PTCY) is considered the standard of care in Haplo-HCT, and recent studies have shown comparable results for PTCY-based Haplo-HCT and HCT from other donor sources. The conditioning regimen plays an important role in eradicating tumor cells to prevent disease relapse and suppressing the recipient’s immune system to facilitate engraftment. PTCY-based Haplo-HCT was initially developed using a nonmyeloablative conditioning regimen consisting of fludarabine, cyclophosphamide and low-dose total body irradiation, but high relapse rates reinforced the need to intensify the conditioning regimen. In this respect, various myeloablative and reduced-intensity conditioning regimens have been investigated. However, the optimal conditioning regimens for PTCY-based Haplo-HCT have not yet been established, and this issue needs to be addressed based on data from patients undergoing the procedure. In this article, we review the existing literature on conditioning regimens for PTCY-based Haplo-HCT and discuss future perspectives.https://www.tandfonline.com/doi/10.1080/16078454.2024.2332866Allogeneic hematopoietic cell transplantationconditioninghaploidenticalposttransplant cyclophosphamide
spellingShingle Junichi Sugita
Masamitsu Yanada
Current status of conditioning regimens in haploidentical hematopoietic cell transplantation
Hematology
Allogeneic hematopoietic cell transplantation
conditioning
haploidentical
posttransplant cyclophosphamide
title Current status of conditioning regimens in haploidentical hematopoietic cell transplantation
title_full Current status of conditioning regimens in haploidentical hematopoietic cell transplantation
title_fullStr Current status of conditioning regimens in haploidentical hematopoietic cell transplantation
title_full_unstemmed Current status of conditioning regimens in haploidentical hematopoietic cell transplantation
title_short Current status of conditioning regimens in haploidentical hematopoietic cell transplantation
title_sort current status of conditioning regimens in haploidentical hematopoietic cell transplantation
topic Allogeneic hematopoietic cell transplantation
conditioning
haploidentical
posttransplant cyclophosphamide
url https://www.tandfonline.com/doi/10.1080/16078454.2024.2332866
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