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Maffini E, Ngoya M, Galimard JE, Harbi S, Kröger N, Platzbecker U, Sengeloev H, Craddock C, Potter V, Choi G, Chevallier P, Stölzel F, Tholouli E, Maertens J, Ciceri F, Cornelissen J, Sanz J, Spyridonidis A, Lanza F, Nagler A, Mohty M. Allogeneic hematopoietic cell transplantation for patients with AML aged 70 years or older in first remission. A study from the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation (EBMT). Bone Marrow Transplant 2023; 58:1033-1041. [PMID: 37386253 DOI: 10.1038/s41409-023-02027-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 06/04/2023] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
Accessibility to allogeneic hematopoietic cell transplantation (HCT) programs for older patients is growing constantly. We report on the clinical outcomes of a group of 701 adults aged ≥70 years, with acute myeloid leukemia (AML) in first complete remission (CR1), who received a first HCT, from HLA-matched sibling donors (MSD), 10/10 HLA-matched unrelated donors (UD), 9/10 HLA-mismatched unrelated donors (mUD) or haploidentical (Haplo) donors. The 2-year overall survival (OS) was 48.1%, leukemia-free survival (LFS) 45.3%, relapse incidence (RI) 25.2%, non-relapse mortality (NRM) 29.5% and GVHD-free, relapse-free survival (GRFS), 33.4%. Compared to MSD, patients transplanted from Haplo and UD presented lower RI (HR 0.46, 95% CI 0.25-0.8, p = 0.02 and HR 0.44, 95% CI: 0.28-0.69, p = 0.001, respectively); this translated into prolonged LFS for Haplo (HR 0.62, 95% CI: 0.39-0.99, p = 0.04). Patients transplanted from mUD exhibited the highest NRM incidence (HR 2.33, 95% CI: 1.26-4.31, p = 0.007). HCT in selected adult CR1 AML patients >70 years is feasible and could be associated with good clinical outcomes. Prospective clinical trials are warranted.
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Affiliation(s)
- Enrico Maffini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna; Istituto "L. e A. Seràgnoli", Bologna, Italy.
| | - Maud Ngoya
- EBMT ALWP Statistical Unit, Saint Antoine Hospital, Sorbonne University, Paris, France
| | | | - Samia Harbi
- Programme de Transplantation et Therapie Cellulaire, Centre de Recherche en Cancerologie de Marseille, Institut Paoli Calmettes, Marseille, France
| | - Nicolaus Kröger
- Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Uwe Platzbecker
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy, University hospital Leipzig, Leipzig, Germany
| | - Henrik Sengeloev
- Bone Marrow Transplant Unit L 4043, National University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Charles Craddock
- Birmingham Centre for Cellular Therapy and Transplantation, Birmingham, UK
| | - Victoria Potter
- Department of Haematological Medicine, Kings College Hospital, King's Denmark Hill Campus, London, UK
| | - Goda Choi
- University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Friedrich Stölzel
- University Hospital Dresden, Medizinische Klinik und Poliklinik I, Dresden, TU Dresden, Germany
| | - Eleni Tholouli
- Haematology Department, Manchester Royal Infirmary, Oxford Road, Manchester, UK
| | - Johan Maertens
- Department of Hematology, University Hospital Gasthuisberg, Leuven, Belgium
| | - Fabio Ciceri
- Ospedale San Raffaele s.r.l., Haematology and BMT, Milano, Italy
| | - Jan Cornelissen
- Department of Haematology, Erasmus MC Cancer Institute, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jaime Sanz
- Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Alexandros Spyridonidis
- Bone Marrow Transplantation Unit and Institute of Cellular therapy, University of Patras, Patras, Greece
| | - Francesco Lanza
- Hematology Unit, Ravenna Public Hospital and Romagna Transplant Network, Ravenna, Italy
| | - Arnon Nagler
- Sheba Medical Center, Tel-Hashomer, Tel-Aviv University, Ramat-Gan, Israel
| | - Mohamad Mohty
- Clinical Hematology and Cellular Therapy Department, Sorbonne University, Saint Antoine Hospital, INSERM UMRs 938, Paris, France
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Andreani M, Gaspari S, Locatelli F. Human leucocyte antigen diversity: A biological gift to escape infections, no longer a barrier for haploidentical Hemopoietic Stem Cell Transplantation. Int J Immunogenet 2019; 47:34-40. [PMID: 31657118 DOI: 10.1111/iji.12459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/10/2019] [Accepted: 10/05/2019] [Indexed: 11/29/2022]
Abstract
Since the beginning of life, every multicellular organism appeared to have a complex innate immune system although the adaptive immune system, centred on lymphocytes bearing antigen receptors generated by somatic recombination, arose in jawed fish approximately 500 million years ago. The major histocompatibility complex MHC, named the Human leucocyte antigen (HLA) system in humans, represents a vital function structure in the organism by presenting pathogen-derived peptides to T cells as the main initial step of the adaptive immune response. The huge level of polymorphism observed in HLA genes definitely reflects selection, favouring heterozygosity at the individual or population level, in a pathogen-rich environment, although many are located in introns or in exons that do not code for the antigen-biding site of the HLA. Over the past three decades, the extent of allelic diversity at HLA loci has been well characterized using high-resolution HLA-DNA typing and the number of new HLA alleles, produced through next-generation sequencing methods, is even more rapidly increasing. The level of the HLA system polymorphism represents an obstacle to the search of potential compatible donors for patients affected by haematological disease proposed for a hematopoietic stem cell transplant (HSCT). Data reported in literature clearly show that antigenic and/or allelic mismatches between related or unrelated donors and patients influences the successful HSCT outcome. However, the recent development of the new transplant strategy based on the choice of haploidentical donors for HSCT is questioning the role of HLA compatibility, since the great HLA disparities present do not worsen the overall clinical outcome. Nowadays, NGS has contributed to define at allelic levels the HLA polymorphism and solve potential ambiguities. However, HLA functions and tissue typing probably need to be further investigated in the next future, to understand the reasons why in haploidentical transplants the presence of a whole mismatch haplotype between donors and recipients, both the survival rate and the incidence of acute GvHD or graft rejection are similar to those reported for unrelated HSCTs.
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Affiliation(s)
- Marco Andreani
- Laboratorio d'Immunogenetica dei Trapianti, Polo di Ricerca di San Paolo, Dipartimento di Onco-Ematologia e Terapia Cellulare e Genica, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Stefania Gaspari
- Dipartimento di Onco-Ematologia e Terapia Cellulare e Genica, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Franco Locatelli
- Dipartimento di Onco-Ematologia e Terapia Cellulare e Genica, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy
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