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Piekarska A, Pawelec K, Szmigielska-Kapłon A, Ussowicz M. The state of the art in the treatment of severe aplastic anemia: immunotherapy and hematopoietic cell transplantation in children and adults. Front Immunol 2024; 15:1378432. [PMID: 38646536 PMCID: PMC11026616 DOI: 10.3389/fimmu.2024.1378432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/22/2024] [Indexed: 04/23/2024] Open
Abstract
Acquired aplastic anemia (AA) is an immune-mediated bone marrow (BM) failure where marrow disruption is driven by a cytotoxic T-cell-mediated autoimmune attack against hematopoietic stem cells. The key diagnostic challenge in children, but also in adults, is to exclude the possible underlying congenital condition and myelodysplasia. The choice of treatment options, either allogeneic hematopoietic cell transplantation (alloHCT) or immunosuppressive therapy (IST), depends on the patient's age, comorbidities, and access to a suitable donor and effective therapeutic agents. Since 2022, horse antithymocyte globulin (hATG) has been available again in Europe and is recommended for IST as a more effective option than rabbit ATG. Therefore, an update on immunosuppressive strategies is warranted. Despite an improved response to the new immunosuppression protocols with hATG and eltrombopag, some patients are not cured or remain at risk of aplasia relapse or clonal evolution and require postponed alloHCT. The transplantation field has evolved, becoming safer and more accessible. Upfront alloHCT from unrelated donors is becoming a tempting option. With the use of posttransplant cyclophosphamide, haploidentical HCT offers promising outcomes also in AA. In this paper, we present the state of the art in the management of severe AA for pediatric and adult patients based on the available guidelines and recently published studies.
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Affiliation(s)
- Agnieszka Piekarska
- Department of Hematology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Katarzyna Pawelec
- Department of Oncology, Pediatric Hematology, Clinical Transplantology and Pediatrics, Medical University of Warsaw, Warsaw, Poland
| | | | - Marek Ussowicz
- Department of Pediatric Bone Marrow Transplantation, Oncology and Hematology, Wroclaw Medical University, Wroclaw, Poland
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Zhang M, Zhu G, Cai L, Yuan M, Wu R, Jia C, Wang B, Zheng J, Ma J, Qin M, Li S. Efficacy of hematopoietic stem cell transplantation in the treatment of children with non-severe aplastic anemia. Pediatr Transplant 2022; 26:e14340. [PMID: 35735259 DOI: 10.1111/petr.14340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/21/2022] [Accepted: 05/19/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Non-severe aplastic anemia is more likely to develop into severe aplastic anemia, and there is no widely accepted treatment plan at present. Hematopoietic stem cell transplantation might be a new therapeutic strategy. METHODS Retrospectively analyzed 32 patients with non-severe aplastic anemia who underwent hematopoietic stem cell transplantation from September 2007 to September 2020, and the 5-year estimated overall survival rate and the incidence of graft-versus-host disease were analyzed to evaluate the efficacy and safety of hematopoietic stem cell transplantation in the treatment of pediatric non-severe aplastic anemia. RESULTS Thirty-two patients who underwent transplantation, 29 patients (90.6%) survived, 3 patients (9.4%) died. The incidence of acute graft-versus-host disease was 51.6% (16/31), including 15 cases (48.4%) of grade I-II and 1 case (3.2%) of grade III-IV. The incidence of chronic graft-versus-host disease was 38.7% (12/31). The 5-year overall survival rate was 91.8%. CONCLUSIONS Hematopoietic stem cell transplantation is a practicable, safe, and effective treatment option for non-severe aplastic anemia pediatric patients who are suitable for transplant.
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Affiliation(s)
- Man Zhang
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Guanghua Zhu
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Lixiao Cai
- Department of Stem Cell Transplantation, National Center for Children's Health, Baoding Children's Hospital, Baoding, China
| | - Meng Yuan
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Runhui Wu
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Chenguang Jia
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Bin Wang
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jie Zheng
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jie Ma
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Maoquan Qin
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Sidan Li
- Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital Chinese Academy of Medical Sciences, Langfang, China
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Salamonowicz-Bodzioch M, Rosa M, Frączkiewicz J, Gorczyńska E, Gul K, Janeczko-Czarnecka M, Jarmoliński T, Kałwak K, Mielcarek-Siedziuk M, Olejnik I, Owoc-Lempach J, Panasiuk A, Gajek K, Rybka B, Ryczan-Krawczyk R, Ussowicz M. Fludarabine-Cyclophosphamide-Based Conditioning with Antithymocyte Globulin Serotherapy Is Associated with Durable Engraftment and Manageable Infections in Children with Severe Aplastic Anemia. J Clin Med 2021; 10:jcm10194416. [PMID: 34640434 PMCID: PMC8509585 DOI: 10.3390/jcm10194416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 01/18/2023] Open
Abstract
Severe aplastic anemia (SAA) is a bone marrow failure syndrome that can be treated with hematopoietic cell transplantation (HCT) or immunosuppressive (IS) therapy. A retrospective cohort of 56 children with SAA undergoing transplantation with fludarabine-cyclophosphamide-ATG-based conditioning (FluCyATG) was analyzed. The endpoints were overall survival (OS), event-free survival (EFS), cumulative incidence (CI) of graft versus host disease (GVHD) and CI of viral replication. Engraftment was achieved in 53/56 patients, and four patients died (two due to fungal infection, and two of neuroinfection). The median time to neutrophil engraftment was 14 days and to platelet engraftment was 16 days, and median donor chimerism was above 98%. The overall incidence of acute GVHD was 41.5%, and that of grade III-IV acute GVHD was 14.3%. Chronic GVHD was diagnosed in 14.2% of children. The probability of 2-year GVHD-free survival was 76.1%. In the univariate analysis, a higher dose of cyclophosphamide and previous IS therapy were significant risk factors for worse overall survival. Episodes of viral replication occurred in 33/56 (58.9%) patients, but did not influence OS. The main advantages of FluCyATG include early engraftment with a very high level of donor chimerism, high overall survival and a low risk of viral replication after HCT.
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Affiliation(s)
- Małgorzata Salamonowicz-Bodzioch
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
- Correspondence: ; Tel.: +48-71-7332700; Fax: +48-71-7332709
| | - Monika Rosa
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Jowita Frączkiewicz
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Ewa Gorczyńska
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Katarzyna Gul
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Małgorzata Janeczko-Czarnecka
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Tomasz Jarmoliński
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Krzysztof Kałwak
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Monika Mielcarek-Siedziuk
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Igor Olejnik
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Joanna Owoc-Lempach
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Anna Panasiuk
- Department of Oncology, Hematolgy and Transplantology, University Hospital USK in Wroclaw, 50-556 Wroclaw, Poland;
| | - Kornelia Gajek
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Blanka Rybka
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Renata Ryczan-Krawczyk
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
| | - Marek Ussowicz
- Department of Pediatric Oncology, Haematology and Bone Marrow Transplantation, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (M.R.); (J.F.); (E.G.); (K.G.); (M.J.-C.); (T.J.); (K.K.); (M.M.-S.); (I.O.); (J.O.-L.); (K.G.); (B.R.); (R.R.-K.); (M.U.)
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Onishi Y, Mori T, Yamazaki H, Takenaka K, Yamaguchi H, Shingai N, Ozawa Y, Iida H, Ota S, Uchida N, Miyamoto T, Katayama Y, Kato J, Yoshioka S, Onizuka M, Ichinohe T, Atsuta Y. Cyclosporine/methotrexate versus tacrolimus/methotrexate with or without anti-thymocyte globulin as GVHD prophylaxis in adult patients with aplastic anemia. Ann Hematol 2020; 100:217-228. [PMID: 33033911 DOI: 10.1007/s00277-020-04290-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 09/28/2020] [Indexed: 11/29/2022]
Abstract
The impact of calcineurin inhibitor types and anti-thymocyte globulin (ATG) in conditioning on overall survival (OS) and GVHD-free, relapse-free survival (GRFS) has not yet been analyzed in detail for aplastic anemia. We herein examined 517 adult patients with aplastic anemia who underwent BMT from HLA-matched sibling donors (MSD, n = 255) and unrelated donors (UD, n = 262) and were treated with cyclosporine A (CSA) + methotrexate (MTX) (n = 258) and tacrolimus (TAC) + MTX (n = 259). In total, 330 patients received ATG in conditioning. CSA + MTX versus TAC + MTX did not have a significant impact on acute and chronic GVHD, OS, or GRFS in each donor type. The use of ATG in conditioning reduced the risk of grade II-IV acute GVHD in the MSD and UD cohorts (HR 0.42, P = 0.014, and HR 0.3, P < 0.001, respectively); however, a differential impact on GRFS was identified, namely, better GRFS in MSD recipients (HR 0.56, P = 0.016), but not in UD recipients (HR 1.1, P = 0.657). In conclusion, CSA + MTX and TAC + MTX were similar as GVHD prophylaxis regardless of the donor type, and ATG in conditioning increased GRFS in MSD transplants, but not in UD transplants.
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Affiliation(s)
- Yasushi Onishi
- Department of Hematology and Rheumatology, Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Takehiko Mori
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hirohito Yamazaki
- Division of Transfusion Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - Katsuto Takenaka
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Matsuyama, Japan
| | | | - Naoki Shingai
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Yukiyasu Ozawa
- Department of Hematology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - Hiroatsu Iida
- Division of Cell Therapy, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Naoyuki Uchida
- Department of Hematology, Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital, Tokyo, Japan
| | - Toshihiro Miyamoto
- Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuta Katayama
- Department of Hematology, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Jun Kato
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Yoshioka
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Makoto Onizuka
- Department of Hematology/Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Tatsuo Ichinohe
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yoshiko Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation, Nagoya, Japan
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Comparison of HLA-matched sibling and unrelated donor transplantation in adult patients with acquired severe aplastic anemia. Bone Marrow Transplant 2020; 55:1570-1579. [PMID: 32024992 DOI: 10.1038/s41409-020-0820-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 12/12/2022]
Abstract
The recent improvements in the outcomes of severe aplastic anemia (SAA) patients who received allogeneic stem cell transplantation (SCT) from unrelated donors (URD) suggest the possibility of its alternative first-line treatment. To address this issue, results of adult SAA patients receiving allogeneic SCT were compared between the following three donor-type groups: 8/8-matched sibling (MSD; n = 153), 8/8 well-matched unrelated (WM-URD; n = 72), and 6-7/8 partially matched unrelated (PM-URD; n = 33). Proportion of patients who experienced immunosuppressive treatment failures was significantly higher in the URD groups than in the MSD group (P< 0.01). The incidences of graft failure and transplant-related mortality, and graft-vs.-host disease-free, failure-free survival rates of the MSD, WM-URD, and PM-URD groups were 14.6, 0, and 0% (P< 0.01); 6.1, 10.3, and 21.7% (P= 0.03); and 76.7, 55.5, and 51.5% (P< 0.01), respectively. The overall survival (OS) rate of the MSD group (93.9%) was higher than that of the PM-URD (78.3%; P < 0.01) group, but not to that of the WM-URD (86.2%; P= 0.18) group. Our study showed comparable OS between the MSD group and WM-URD group, which suggest that the URD-SCT can be used as a first-line treatment for adult SAA patients with WM-URD.
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Yang D, Yang J, Hu X, Chen J, Gao L, Cheng H, Tang G, Luo Y, Zhang W, Wang J. Aplastic Anemia Preconditioned with Fludarabine, Cyclophosphamide, and Anti-Thymocyte Globulin. Ann Transplant 2019; 24:461-471. [PMID: 31395850 PMCID: PMC6705177 DOI: 10.12659/aot.915696] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Background Graft rejection and graft versus host disease (GvHD) have impeded the success of hematopoietic cell transplantation for severe aplastic anemia (SAA) patients. There is no sufficient data to identify the outcomes of peripheral blood stem cell transplantation (PBSCT) in SAA patients, especially for adult SAA patients. The aim of this study was to evaluate the outcomes of adult SAA patients undergoing PBSCT with the FCA regimen. The FCA regimen includes fludarabine, cyclophosphamide, and anti-thymocyte globulin (ATG). Material/Methods We report our experience with 46 adult SAA patients who underwent PBSCT with the FCA regimen. Thirty SAA patients who received only cyclophosphamide and ATG (CA) regimen were used as controls. Complications and survival outcomes were evaluated and compared. Results There was a significantly higher percentage of patients who achieved >95% donor chimerism by day 30 in the FCA group. The 5-year event-free survival (EFS) rate in the FCA group was higher than that in the CA group (95.4% versus 73.3%). In addition, the 5-year rejection rate (RR) in the FCA group was lower than that in the CA group (4.6% versus 23.6%). A multivariable model identified the FCA regimen as an independent factor affecting EFS and RR. However, GvHD and serious infection did not differ between the 2 groups. For patients with an unrelated donor, the FCA regimen had a higher EFS and a lower RR than the CA regimen. Conclusions The FCA regimen for PBSCT in adult SAA patients compared favorably to the CA regimen. It can improve EFS and reduce graft rejection, especially for unrelated donor PBSCT.
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Affiliation(s)
- Dan Yang
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Jianmin Yang
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Xiaoxia Hu
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Jie Chen
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Lei Gao
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Hui Cheng
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Gusheng Tang
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Yanrong Luo
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Weiping Zhang
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
| | - Jianmin Wang
- Department of Hematology, Institute of Hematology of People's Liberation Army (PLA), Changhai Hospital, Shanghai, China (mainland)
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Management of acquired aplastic anemia in children : A single center experience. Transfus Apher Sci 2019; 58:484-490. [DOI: 10.1016/j.transci.2019.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 01/25/2019] [Accepted: 05/08/2019] [Indexed: 02/01/2023]
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Bacigalupo A. Alternative donor transplants for severe aplastic anemia. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2018; 2018:467-473. [PMID: 30504347 PMCID: PMC6245994 DOI: 10.1182/asheducation-2018.1.467] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Allogeneic hematopoietic stem-cell transplantation remains the only curative treatment for patients with acquired severe aplastic anemia (SAA). When a matched sibling is not available, one can search for a matched unrelated donor or a cord blood unit (CB) in the international registries or, more recently, for an HLA haploidentical (HAPLO) family member. International guidelines call for a course of antithymocyte globulin (ATG) and cyclosporine before a patient with SAA receives a transplant from a donor other than an HLA identical sibling, but whether this is necessary for patients age <20 years is less clear. Here I will examine the rapid increase in HAPLO transplantations for SAA, showing encouraging early results both in children and young adults. Graft-versus-host disease prophylaxis remains of primary importance in patients with SAA, and in vivo T-cell depletion with either ATG or alemtuzumab offers a significant survival advantage. Finally, I will discuss the strong age effect, which is particularly evident at >40 and 50 years of age for reasons not entirely clear and which should be taken into account when designing a treatment strategy for a given patient.
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Affiliation(s)
- Andrea Bacigalupo
- Department of Hematology, Fondazione Policlinico Universitario Gemelli IRCCS, Universita' Cattolica del Sacro Cuore, Rome, Italy
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Abstract
PURPOSE OF REVIEW This review aimed to provide updated guidelines for the management of children with acquired aplastic anemia (AA), particularly focusing on hematopoietic stem cell transplantation (HSCT). RECENT FINDINGS Failure-free survival for children with aplastic anemia has been shown to be better after bone marrow transplantation (BMT) from matched or one-locus mismatched related donors (MRD/1MMRD) than after immunosuppressive therapy (IST). A combination of the absence of minor paroxysmal nocturnal hemoglobinuria clones and short telomere length was identified as a strong predictor of a poor response to IST. Upfront HSCT from matched unrelated donors (MUD) and MRD was recently demonstrated to have comparable outcomes. Moreover, unrelated cord blood transplantation (UCBT) and haploidentical HSCT have shown promising outcomes, and the fludarabine/melphalan-based regimen has resulted in excellent survival without poor graft function. BMT from MRD/1MMRD is the treatment of choice. When a MRD/1MMRD is not available, upfront BMT from a MUD should be considered for patients with only a slim chance of responding to IST. UCBT and haploidentical HSCT are promising options. This updated treatment algorithm should improve overall outcomes for children with AA.
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10
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Moyer AM, Hashmi SK, Kroning CM, Kremers WK, De Goey SR, Patnaik M, Litzow M, Gastineau DA, Hogan WJ, Jacob EK, Kreuter JD, Wakefield LL, Gandhi MJ. Clinical outcomes of HLA-DPB1 mismatches in 10/10 HLA-matched unrelated donor-recipient pairs undergoing allogeneic stem cell transplant. Eur J Haematol 2017. [PMID: 28632323 DOI: 10.1111/ejh.12916] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE HLA-DPB1 matching may impact allogeneic hematopoietic stem cell transplantation (ASCT) outcomes; however, this locus is not in linkage disequilibrium with the remainder of the HLA genes. After classifying HLA-DPB1 mismatches based on T-cell epitope, avoiding non-permissive mismatches may impact survival. We tested this hypothesis at a single academic institution. METHODS Retrospective HLA-DPB1 genotyping was performed on 153 adult patients who underwent ASCT and unrelated donors matched for HLA-A, B, C, DRB1, and DQB1 loci (10/10). Using the ImMunoGeneTics/HLA T-cell epitope matching algorithm, mismatch status was classified as permissive or non-permissive. RESULTS Of 153 donor-recipient pairs, 22 (14.4%) were HLA-DPB1 matches, 64 (42.8%) permissive mismatches, and 67 (43.8%) non-permissive mismatches. DPB1 mismatch increased risk of chronic graft-versus-host disease (cGVHD; RR 2.89 [1.19-9.53], P=.016) compared with DPB1-matched transplants, but there were no differences in overall mortality, risk of relapse, or acute GVHD (aGVHD). Combining matches and permissive mismatches and comparing to non-permissive mismatches, there was no significant difference in overall survival or relapse; however, patients receiving non-permissive mismatched transplants experienced greater risk of aGVHD overall and severe aGVHD (RR 1.66 [1.13-2.44], P=.010 and RR 1.97 [1.10-3.59], P=.024, respectively). CONCLUSION In this single-center study, HLA-DPB1 matching influenced outcomes of patients undergoing ASCT for hematologic malignancy.
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Affiliation(s)
- Ann M Moyer
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Cynthia M Kroning
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Walter K Kremers
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Steven R De Goey
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Mark Litzow
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Dennis A Gastineau
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.,Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | - Eapen K Jacob
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Justin D Kreuter
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Laurie L Wakefield
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Manish J Gandhi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
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11
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Park SS, Kwak DH, Jeon YW, Yoon JH, Lee SE, Cho BS, Eom KS, Kim YJ, Kim HJ, Lee S, Min CK, Cho SG, Kim DW, Min WS, Lee JW. Beneficial Role of Low-Dose Antithymocyte Globulin in Unrelated Stem Cell Transplantation for Adult Patients with Acquired Severe Aplastic Anemia: Reduction of Graft-versus-Host Disease and Improvement of Graft-versus-Host Disease-Free, Failure-Free Survival Rate. Biol Blood Marrow Transplant 2017; 23:1498-1508. [PMID: 28554856 DOI: 10.1016/j.bbmt.2017.05.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/22/2017] [Indexed: 01/04/2023]
Abstract
Stem cell transplantation (SCT) from an unrelated donor (URD) is often considered in patients with severe aplastic anemia (SAA) whom immunosuppressive therapy failed and matched sibling donor is not available. To reduce the incidence of graft-versus-host disease (GVHD) in URD SCT, introducting antithymocyte globulin (ATG) into the conditioning regimen has been proposed. Although ATG was shown to play a role in reducing GVHD in a cohort with diverse hematologic diseases, its role in SAA remains uncertain. The aim of this study was to determine the efficacy and toxicity of ATG in URD SCT for adult patients with SAA. We investigated 83 adult patients with SAA who underwent URD SCT between 2003 and 2014. The transplantation strategy consisted of total body irradiation (total 800 cGy) and cyclophosphamide (total 100 mg/kg to 120 mg/kg), followed by tacrolimus and a short-term methotrexate. We divided patients into 2 groups: group 1 (n = 25), which received HLA-matched (8/8) bone marrow (BM) without ATG, and group 2 (n = 58), which received SCT from either an HLA-mismatched donor or peripheral blood (PB). Thereafter, group 2 was subdivided according to ATG use into group 2A (without ATG, n = 26), which served as a historical cohort, and group 2B (with ATG, n = 32). Rabbit ATG (Thymoglobulin; Genzyme-Sanofi, Lyon, France) was used in group 2B at a dose of 2.5 mg/kg. The median age of all patients was 30 years (range, 17 to 59 years). The incidence of GVHD was significantly lower in group 2B than group 2A, as demonstrated by the rate of grade II to IV acute GVHD at day 100 (31.2% versus 61.5%, P = .003) and the rate of chronic GVHD at 3 years (21.9% versus 65.4%, P = .002). The overall survival rates of the 3 groups were similar. However, GVHD-free, failure-free survival (GFFS) was significantly higher in group 2B than group 2A (P = .034). A multivariable model identified use of ATG as an independent factor affecting grades II to IV acute GVHD (hazard ratio [HR], 2.902; 95% confidence interval [CI], 1.417 to 5.942; P = .004), chronic GVHD (HR , 3.005; 95% CI, 1.279 to 7.059; P = .012), and GFFS (HR, 2.363; 95% CI, 1.162 to 4.805; P = .014). Toxicities, including infectious complications, were not different among the 3 groups. In conclusion, low-dose ATG (2.5 mg/kg) can reduce the incidence of acute and chronic GVHD and improve the quality of life in patients with SAA who receive stem cells from either an HLA-mismatched donor or PB; importantly, these benefits are achieved without increased toxicity. Furthermore, ATG can be considered in URD SCT from HLA-matched BM cells.
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Affiliation(s)
- Sung-Soo Park
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dae Hun Kwak
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young-Woo Jeon
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae-Ho Yoon
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Eun Lee
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Byung-Sik Cho
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ki-Seong Eom
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoo-Jin Kim
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hee-Je Kim
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seok Lee
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang-Ki Min
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seok-Goo Cho
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Wook Kim
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Woo-Sung Min
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jong Wook Lee
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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12
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Biomarkers for predicting clinical response to immunosuppressive therapy in aplastic anemia. Int J Hematol 2016; 104:153-8. [PMID: 27091471 DOI: 10.1007/s12185-016-2009-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 10/21/2022]
Abstract
The decision to select hematopoietic stem cell transplantation (HSCT) or immunosuppressive therapy (IST) as initial therapy in acquired aplastic anemia (AA) is currently based on patient age and the availability of a human leukocyte antigen (HLA)-matched donor. Although IST is a promising treatment option, the ability to predict its long-term outcomes remains poor due to refractoriness, relapses, and the risk of clonal evolution. Several predictive biomarkers for response to IST have been posited, including age, gender, pre-treatment blood cell counts, cytokines, gene mutations, paroxysmal nocturnal hemoglobinuria (PNH), and telomere length (TL). While previous studies have provided substantial biological insights into the utility of IST, the prognostic power of the reported biomarkers is currently insufficient to contribute to clinical decision making. Recently, a large retrospective analysis proposed the combination of minor PNH clones and TL as an efficient predictor of IST response. Identification of a reliable predictor would provide a useful tool for determining the most appropriate treatment choice for AA patients, including up-front HSCT from HLA-matched unrelated donor. The present review summarizes studies evaluating the utility of biomarkers in predicting the clinical response to IST of patients with AA, and provides a baseline for prospective studies aimed at validating previously reported biomarkers.
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13
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Devillier R, Dalle JH, Kulasekararaj A, D'aveni M, Clément L, Chybicka A, Vigouroux S, Chevallier P, Koh M, Bertrand Y, Michallet M, Zecca M, Yakoub-Agha I, Cahn JY, Ljungman P, Bernard M, Loiseau P, Dubois V, Maury S, Socié G, Dufour C, Peffault de Latour R. Unrelated alternative donor transplantation for severe acquired aplastic anemia: a study from the French Society of Bone Marrow Transplantation and Cell Therapies and the EBMT Severe Aplastic Anemia Working Party. Haematologica 2016; 101:884-90. [PMID: 27056924 DOI: 10.3324/haematol.2015.138727] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 04/05/2016] [Indexed: 11/09/2022] Open
Abstract
Unrelated allogeneic transplantation for severe aplastic anemia is a treatment option after immunosuppressive treatment failure in the absence of a matched sibling donor. Age, delay between disease diagnosis and transplantation, and HLA matching are the key factors in transplantation decisions, but their combined impact on patient outcomes remains unclear. Using the French Society of Bone Marrow Transplantation and Cell Therapies registry, we analyzed all consecutive patients (n=139) who underwent a first allogeneic transplantation for idiopathic severe aplastic anemia from an unrelated donor between 2000 and 2012. In an adjusted multivariate model, age over 30 years (Hazard Ratio=2.39; P=0.011), time from diagnosis to transplantation over 12 months (Hazard Ratio=2.18; P=0.027) and the use of a 9/10 mismatched unrelated donor (Hazard Ratio=2.14; P=0.036) were independent risk factors that significantly worsened overall survival. Accordingly, we built a predictive score using these three parameters, considering patients at low (zero or one risk factors, n=94) or high (two or three risk factors, n=45) risk. High-risk patients had significantly shorter survival (Hazard Ratio=3.04; P<0.001). The score was then confirmed on an independent cohort from the European Group for Blood and Marrow Transplantation database of 296 patients, with shorter survival in patients with at least 2 risk factors (Hazard Ratio=2.13; P=0.005) In conclusion, a simple score using age, transplantation timing and HLA matching would appear useful to help physicians in the daily care of patients with severe aplastic anemia.
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Affiliation(s)
| | - Jean-Hugues Dalle
- Pediatric Hematology Unit, Robert Debré University Hospital, Paris, France
| | | | - Maud D'aveni
- Pediatric Hematology Unit, University Hospital, Nancy, France
| | - Laurence Clément
- Pediatric Hematology Unit, University Hospital, Nancy, France Hematology Department, Haut-Leveque Hospital and Bordeaux University Hospital, Pessac, France
| | | | - Stéphane Vigouroux
- Hematology Department, Haut-Leveque Hospital and Bordeaux University Hospital, Pessac, France
| | | | - Mickey Koh
- Hematology Department, St. George's Hospital, London, UK
| | - Yves Bertrand
- Pediatric Hematology Unit, University Hospital, Lyon, France
| | | | - Marco Zecca
- Hematology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Jean-Yves Cahn
- Hematology Department, University Hospital, Grenoble, France
| | - Per Ljungman
- Hematology Department, Karolinska University Hospital, Stockholm, Sweden
| | - Marc Bernard
- Hematology Department, University Hospital, Rennes, France
| | - Pascale Loiseau
- HLA Laboratory, Saint-Louis University Hospital, Paris, France French Society of Histocompatibility and Immunogenetics (SFHI), France
| | - Valérie Dubois
- HLA Laboratory, Etablissement Français du Sang, Lyon, France
| | - Sébastien Maury
- Hematology Department, Henri Mondor Hospital, Créteil, France
| | - Gérard Socié
- BMT Department, Saint-Louis Hospital, Diderot Paris 7 University, Paris, France
| | - Carlo Dufour
- Clinical and Experimental Haematology Unit, Giannina Gaslini Children's Hospital, Genova, Italy
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14
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Allogeneic hematopoietic cell transplantation for severe aplastic anemia: similar long-term overall survival after transplantation with related donors compared to unrelated donors. Bone Marrow Transplant 2015; 51:288-90. [DOI: 10.1038/bmt.2015.231] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Anderlini P, Wu J, Gersten I, Ewell M, Tolar J, Antin JH, Adams R, Arai S, Eames G, Horwitz ME, McCarty J, Nakamura R, Pulsipher MA, Rowley S, Leifer E, Carter SL, DiFronzo NL, Horowitz MM, Confer D, Deeg HJ, Eapen M. Cyclophosphamide conditioning in patients with severe aplastic anaemia given unrelated marrow transplantation: a phase 1-2 dose de-escalation study. LANCET HAEMATOLOGY 2015; 2:e367-75. [PMID: 26685770 DOI: 10.1016/s2352-3026(15)00147-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 08/03/2015] [Accepted: 08/04/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND The optimum preparative regimen for unrelated donor marrow transplantation in patients with severe aplastic anaemia remains to be established. We investigated whether the combination of fludarabine, anti-thymocyte globulin, and total body irradiation (TBI) would enable reduction of the cyclophosphamide dose to less than 200 mg/kg while maintaining engraftment and having a survival similar to or better than that with standard regimens using a cyclophosphamide dose of 200 mg/kg (known to be associated with significant organ toxicity) for unrelated donor transplantation for severe aplastic anaemia. We have previously shown that cyclophosphamide at 150 mg/kg resulted in excess toxicity and its omission (0 mg/kg) resulted in unacceptable graft failure (three of three patients had secondary graft failure). Here we report results for the 50 mg/kg and 100 mg/kg cohorts. METHODS In a multicentre phase 1-2 study, patients (aged ≤65 years) with severe aplastic anaemia, adequate organ function, and an unrelated adult marrow donor HLA matched at the allele level for HLA A, B, C, and DRB1 or mismatched at a single HLA locus received bone marrow grafts from unrelated donors. All patients received anti-thymocyte globulin (rabbit derived 3 mg/kg per day, intravenously, on days -4 to -2, or equine derived 30 mg/kg per day, intravenously, on days -4 to -2), fludarabine (30 mg/m(2) per day, intravenously, on days -5 to -2), and TBI (2 Gy). Cyclophosphamide dosing started at 150 mg/kg and was de-escalated in steps of 50 mg/kg (to 100 mg/kg, 50 mg/kg, and 0 mg/kg). The primary endpoint was the selection of the optimum cyclophosphamide dose based on assessments of graft failure (primary or secondary), toxicity, and early death during 100 days of follow-up after the transplant; this is the planned final analysis for the primary endpoint. This trial is registered with ClinicalTrials.gov, number NCT00326417. FINDINGS 96 patients had bone marrow transplant. At day 100, 35 (92%) of 38 patients were engrafted and alive in the cyclophosphamide 50 mg/kg cohort and 35 (85%) of 41 in the 100 mg/kg cohort. Cyclophosphamide 50 mg/kg and 100 mg/kg resulted in posterior means for fatality without graft failure of 0·7% (credible interval 0-3·3) and 1·4% (0-4·9), respectively. Three patients (8%) had graft failure with cyclophosphamide 50 mg/kg and six (15%) with cyclophosphamide 100 mg/kg. Four (11%) patients had major regimen-related toxicity with cyclophosphamide 50 mg/kg and nine (22%) with cyclophosphamide 100 mg/kg. The most common organ toxicity was pulmonary (grade 3 or 4 dyspnoea or hypoxia including mechanical ventilation), and occurred in three (8%) and four (10%) patients given cyclophosphamide 50 mg/kg and 100 mg/kg, respectively. INTERPRETATION Cyclophosphamide at 50 mg/kg and 100 mg/kg with TBI 2 Gy, fludarabine, and anti-thymocyte globulin results in effective conditioning and few early deaths after unrelated donor transplantation for severe aplastic anaemia. These doses of cyclophosphamide provide a framework for further regimen optimisation strategies. FUNDING US National Heart, Lung, and Blood Institute and National Cancer Institute.
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Affiliation(s)
- Paolo Anderlini
- University of Texas, MD Anderson Cancer Center, Houston, TX, USA.
| | - Juan Wu
- Emmes Corporation, Rockville, MD, USA
| | | | | | - Jakob Tolar
- University of Minnesota, Minneapolis, MN, USA
| | | | | | - Sally Arai
- Stanford Hospital and Clinics, Stanford, CA, USA
| | | | | | - John McCarty
- Virginia Commonwealth University, Richmond, VA, USA
| | | | | | - Scott Rowley
- Hackensack University Medical Center, Hackensack, NJ, USA
| | - Eric Leifer
- National Heart, Lung, and Blood Institute, Bethesda, MD, USA
| | | | | | | | | | - H Joachim Deeg
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Mary Eapen
- Medical College of Wisconsin, Milwaukee, WI, USA
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16
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Narita A, Muramatsu H, Sekiya Y, Okuno Y, Sakaguchi H, Nishio N, Yoshida N, Wang X, Xu Y, Kawashima N, Doisaki S, Hama A, Takahashi Y, Kudo K, Moritake H, Kobayashi M, Kobayashi R, Ito E, Yabe H, Ohga S, Ohara A, Kojima S. Paroxysmal nocturnal hemoglobinuria and telomere length predicts response to immunosuppressive therapy in pediatric aplastic anemia. Haematologica 2015; 100:1546-52. [PMID: 26315930 DOI: 10.3324/haematol.2015.132530] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 08/18/2015] [Indexed: 11/09/2022] Open
Abstract
Acquired aplastic anemia is an immune-mediated disease characterized by severe defects in stem cell number resulting in hypocellular marrow and peripheral blood cytopenias. Minor paroxysmal nocturnal hemoglobinuria populations and a short telomere length were identified as predictive biomarkers of immunosuppressive therapy responsiveness in aplastic anemia. We enrolled 113 aplastic anemia patients (63 boys and 50 girls) in this study to evaluate their response to immunosuppressive therapy. The paroxysmal nocturnal hemoglobinuria populations and telomere length were detected by flow cytometry. Forty-seven patients (42%) carried a minor paroxysmal nocturnal hemoglobinuria population. The median telomere length of aplastic anemia patients was -0.99 standard deviation (SD) (range -4.01-+3.01 SD). Overall, 60 patients (53%) responded to immunosuppressive therapy after six months. Multivariate logistic regression analysis identified the absence of a paroxysmal nocturnal hemoglobinuria population and a shorter telomere length as independent unfavorable predictors of immunosuppressive therapy response at six months. The cohort was stratified into a group of poor prognosis (paroxysmal nocturnal hemoglobinuria negative and shorter telomere length; 37 patients) and good prognosis (paroxysmal nocturnal hemoglobinuria positive and/or longer telomere length; 76 patients), respectively. The response rates of the poor prognosis and good prognosis groups at six months were 19% and 70%, respectively (P<0.001). The combined absence of a minor paroxysmal nocturnal hemoglobinuria population and a short telomere length is an efficient predictor of poor immunosuppressive therapy response, which should be considered while deciding treatment options: immunosuppressive therapy or first-line hematopoietic stem cell transplantation. The trial was registered in www.umin.ac.jp with number UMIN000017972.
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Affiliation(s)
- Atsushi Narita
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuko Sekiya
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yusuke Okuno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hirotoshi Sakaguchi
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Fujita Health University School of Medicine, Toyoake, Japan
| | - Nobuhiro Nishio
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nao Yoshida
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Fujita Health University School of Medicine, Toyoake, Japan
| | - Xinan Wang
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yinyan Xu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nozomu Kawashima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sayoko Doisaki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Asahito Hama
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuko Kudo
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hiroshi Moritake
- Division of Pediatrics, Department of Reproductive and Developmental Medicine, Faculty of Medicine, University of Miyazaki, Hiroshima, Japan
| | - Masao Kobayashi
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Ryoji Kobayashi
- Department of Pediatrics, Sapporo Hokuyu Hospital, Sapporo, Hokkaido, Japan
| | - Etsuro Ito
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiromasa Yabe
- Department of Cell Transplantation and Regenerative Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Akira Ohara
- Department of Pediatrics, Toho University School of Medicine, Tokyo, Japan
| | - Seiji Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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17
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Cesaro S, Peffault de Latour R, Tridello G, Pillon M, Carlson K, Fagioli F, Jouet JP, Koh MBC, Panizzolo IS, Kyrcz-Krzemien S, Maertens J, Rambaldi A, Strahm B, Blaise D, Maschan A, Marsh J, Dufour C. Second allogeneic stem cell transplant for aplastic anaemia: a retrospective study by the Severe Aplastic Anaemia Working Party of the European Society for Blood and Marrow Transplantation. Br J Haematol 2015; 171:606-14. [PMID: 26304743 DOI: 10.1111/bjh.13650] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 07/23/2015] [Indexed: 12/15/2022]
Abstract
We analysed the outcome of a second allogeneic haematopoietic stem cell transplant (alloHSCT) in 162 patients reported to the European Society for Blood and Marrow Transplantation between 1998 and 2009. Donor origin was a sibling in 110 and an unrelated donor in 52 transplants, respectively. The stem cell source was bone marrow in 31% and peripheral blood in 69% of transplants. The same donor as for the first alloHSCT was used in 81% of transplants whereas a change in the choice of stem cell source was reported in 56% of patients, mainly from bone marrow to peripheral blood. Neutrophil and platelet engraftment occurred in 85% and 72% of patients, after a median time of 15 and 17 days, respectively. Grade II-IV acute graft-versus-host disease (GVHD) and chronic GVHD occurred in 21% and 37% of patients, respectively. Graft failure (GF) occurred in 42 patients (26%). After a median follow-up of 3·5 years, the 5-year overall survival (OS) was 60·7%. In multivariate analysis, the only factor significantly associated with a better outcome was a Karnofsky/Lansky score ≥80 (higher OS). We conclude that a second alloHSCT is feasible rescue option for GF in SAA, with a successful outcome in 60% of cases.
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Affiliation(s)
- Simone Cesaro
- Paediatric Haematology and Oncology, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | | | - Gloria Tridello
- Paediatric Haematology and Oncology, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Marta Pillon
- Clinica di Oncoematologia Pediatrica Dipartimento di Pediatria, Padova, Italy
| | | | - Franca Fagioli
- Paediatric Haematology, Regina Margherita Hospital, Torino, Italy
| | - Jean-Pierre Jouet
- Hôpital Claude Huriez Service de Maladies du Sang, Lille Cedex, France
| | - Mickey B C Koh
- St. George's Hospital Department of Haematology, London, UK
| | - Irene Sara Panizzolo
- Paediatric Haematology and Oncology, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | | | - Johan Maertens
- Dept. of Haematology, University Hospital Gasthuisberg, Leuven, Belgium
| | | | - Brigitte Strahm
- Paediatric Haematology and Oncology, Department of Paediatrics and Adolescent Medicine, University Medical Centre, Freiburg, Germany
| | - Didier Blaise
- Programme de Transplantation &Therapie Cellulaire, Centre de Recherche en Cancérologie de Marseille, Institut Paoli Calmettes, Marseille, France
| | - Alexei Maschan
- Federal Research Centre for Paediatric Haematology, Oncology and Immunology, Moscow, Russia
| | - Judith Marsh
- Department of Haematological Medicine, King's College Hospital/King's College London, London, UK
| | - Carlo Dufour
- Paediatric Haematology, Institute G. Gaslini, Genova, Italy
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18
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Schrezenmeier H, Körper S, Höchsmann B. Immunosuppressive therapy for transplant-ineligible aplastic anemia patients. Expert Rev Hematol 2015; 8:89-99. [PMID: 25572607 DOI: 10.1586/17474086.2015.978759] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Aplastic anemia is a rare life-threatening bone marrow failure that is characterized by bicytopenia or pancytopenia in the peripheral blood and a hypoplastic or aplastic bone marrow. The patients are at risk of infection and hemorrhage due to neutropenia and thrombocytopenia and suffer from symptoms of anemia. The main treatment approaches are allogeneic stem cell transplantation and immunosuppression. Here, we review current standard immunosuppression and the attempts that have been made in the past two decades to improve results: review of recent developments also reveals that sometimes not only the advent of new drugs, good ideas and well-designed clinical trials decide the progress in the field but also marketing considerations of pharmaceutical companies. Aplastic anemia experts unfortunately had to face the situation that efficient drugs were withdrawn simply for marketing considerations. We will discuss the current options and challenges in first-line treatment and management of relapsing and refractory patients with an emphasis on adult patients. Some promising new approaches are currently under investigation in prospective, randomized trials.
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Ngwube A, Hayashi RJ, Murray L, Loechelt B, Dalal J, Jaroscak J, Shenoy S. Alemtuzumab based reduced intensity transplantation for pediatric severe aplastic anemia. Pediatr Blood Cancer 2015; 62:1270-6. [PMID: 25755151 DOI: 10.1002/pbc.25458] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 01/08/2015] [Indexed: 01/07/2023]
Abstract
BACKGROUND Hematopoietic cell transplantation (HCT) is curative in patients with severe aplastic anemia (SAA). HCT is considered at presentation when a HLA-matched related donor (MRD) is available and has a high success rate. Unrelated donor (URD) transplants are typically undertaken if immunosuppressive therapy fails. Increased toxicity and graft rejection are often encountered in this setting. PROCEDURE We report a prospective multi-center trial of HCT in 17 children with SAA following novel reduced intensity conditioning with alemtuzumab, fludarabine and melphalan, and the best available donor. Nine were URD transplants matched at 7-8/8 loci, and performed following failure of immune suppression. Median follow up was 61 months (range 6-128). RESULTS All patients engrafted. Estimated 5 year event-free and overall-survival was 88% (95%CI 65.7-96.7). Five year overall survival for MRD and URD transplants was 100% and 78% (95%CI 45-93.6) respectively. Median times to neutrophil and platelet engraftment was 14 (range 10-27) and 23.5 (range 11-65) days respectively. Treatment related mortality was 12%. The incidence of grade II-IV and III-IV acute graft-versus-host disease was 29% and 18% respectively. At two years, all but one patient discontinued immunosuppression successfully. Laboratory measures of immune reconstitution normalized at one year and infection rates were low in the latter part of the first year. CONCLUSIONS HCT using this RIC approach was well tolerated and successful in achieving donor engraftment and early immune reconstitution with good quality of life free of immune suppression. Children with SAA can be successfully transplanted using alemtuzumab based conditioning.
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Affiliation(s)
- Alexander Ngwube
- Department of Pediatrics, Washington University in St. Louis, Missouri
| | - Robert J Hayashi
- Department of Pediatrics, Washington University in St. Louis, Missouri
| | - Lisa Murray
- Department of Pediatrics, Washington University in St. Louis, Missouri
| | - Brett Loechelt
- Blood/Marrow Transplantation and Immunology, Children's National Medical Center, District of Columbia
| | - Jignesh Dalal
- Department of Pediatrics, Children's Mercy Hospital, Kansas City, Missouri
| | | | - Shalini Shenoy
- Department of Pediatrics, Washington University in St. Louis, Missouri
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20
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Zeng Y, Katsanis E. The complex pathophysiology of acquired aplastic anaemia. Clin Exp Immunol 2015; 180:361-70. [PMID: 25683099 DOI: 10.1111/cei.12605] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2015] [Indexed: 12/15/2022] Open
Abstract
Immune-mediated destruction of haematopoietic stem/progenitor cells (HSPCs) plays a central role in the pathophysiology of acquired aplastic anaemia (aAA). Dysregulated CD8(+) cytotoxic T cells, CD4(+) T cells including T helper type 1 (Th1), Th2, regulatory T cells and Th17 cells, natural killer (NK) cells and NK T cells, along with the abnormal production of cytokines including interferon (IFN)-γ, tumour necrosis factor (TNF)-α and transforming growth factor (TGF)-β, induce apoptosis of HSPCs, constituting a consistent and defining feature of severe aAA. Alterations in the polymorphisms of TGF-β, IFN-γ and TNF-α genes, as well as certain human leucocyte antigen (HLA) alleles, may account for the propensity to immune-mediated killing of HSPCs and/or ineffective haematopoiesis. Although the inciting autoantigens remain elusive, autoantibodies are often detected in the serum. In addition, recent studies provide genetic and molecular evidence that intrinsic and/or secondary deficits in HSPCs and bone marrow mesenchymal stem cells may underlie the development of bone marrow failure.
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Affiliation(s)
- Y Zeng
- Department of Pediatrics, Steele Children's Research Center, University of Arizona, Tucson, AZ, USA
| | - E Katsanis
- Department of Pediatrics, Steele Children's Research Center, University of Arizona, Tucson, AZ, USA
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21
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Gadalla SM, Wang T, Haagenson M, Spellman SR, Lee SJ, Williams KM, Wong JY, De Vivo I, Savage SA. Association between donor leukocyte telomere length and survival after unrelated allogeneic hematopoietic cell transplantation for severe aplastic anemia. JAMA 2015; 313:594-602. [PMID: 25668263 PMCID: PMC4388056 DOI: 10.1001/jama.2015.7] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
IMPORTANCE Telomeres protect chromosome ends and are markers of cellular aging and replicative capacity. OBJECTIVE To evaluate the association between recipient and donor pretransplant leukocyte telomere length with outcomes after unrelated donor allogeneic hematopoietic cell transplantation (HCT) for patients with severe aplastic anemia. DESIGN, PARTICIPANTS, AND SETTING The study included 330 patients (235 acquired, 85 Fanconi anemia, and 10 Diamond-Blackfan anemia) and their unrelated donors who had pre-HCT blood samples and clinical and outcome data available at the Center for International Blood and Marrow Transplant Research. Patients underwent HCT between 1989 and 2007 in 84 centers and were followed-up to March 2013. EXPOSURES Recipient and donor pre-HCT leukocyte telomere length classified into long (third tertile) and short (first and second tertiles combined) based on donor telomere length distribution. MAIN OUTCOMES AND MEASURES Overall survival, neutrophil recovery, and acute and chronic graft-vs-host disease, as ascertained by transplant centers through regular patient follow-up. RESULTS Longer donor leukocyte telomere length was associated with higher survival probability (5-year overall survival, 56%; number at risk, 57; cumulative deaths, 50) than shorter donor leukocyte telomere length (5-year overall survival, 40%; number at risk, 71; cumulative deaths, 128; P = .009). The association remained statistically significant after adjusting for donor age, disease subtype, Karnofsky performance score, graft type, HLA matching, prior aplastic anemia therapy, race/ethnicity, and calendar year of transplant (hazard ratio [HR], 0.61; 95% CI, 0.44-0.86). Similar results were noted in analyses stratified on severe aplastic anemia subtype, recipient age, HLA matching, calendar year of transplant, and conditioning regimen. There was no association between donor telomere length and neutrophil engraftment at 28 days (cumulative incidence, 86% vs 85%; HR, 0.94; 95% CI, 0.73-1.22), acute graft-vs-host disease grades III-IV at 100 days (cumulative incidence, 22% vs 28%; HR, 0.77; 95% CI, 0.48-1.23), or chronic graft-vs-host disease at 1-year (cumulative incidence, 28% vs 30%; HR, 0.81; 95% CI, 0.53-1.24) for long vs short, respectively. Pretransplant leukocyte telomere length in the recipients was not associated with posttransplant survival (HR, 0.91; 95% CI, 0.64-1.30). CONCLUSIONS AND RELEVANCE Longer donor leukocyte telomere length was associated with increased 5-year survival in patients who received HCT for severe aplastic anemia. Patient leukocyte telomere length was not associated with survival. The results of this observational study suggest that donor leukocyte telomere length may have a role in long-term posttransplant survival.
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Affiliation(s)
- Shahinaz M Gadalla
- Clinical Genetics Branch, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Tao Wang
- Center for International Blood and Marrow Transplant hResearch and Division of Biostatistics, Medical College of Wisconsin, Milwaukee
| | - Michael Haagenson
- Center for International Blood and Marrow Transplant Research, Minneapolis, Minnesota
| | - Stephen R Spellman
- Center for International Blood and Marrow Transplant Research, Minneapolis, Minnesota
| | - Stephanie J Lee
- Center for International Blood and Marrow Transplant hResearch and Division of Biostatistics, Medical College of Wisconsin, Milwaukee4Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Kirsten M Williams
- Division of Blood and Marrow Transplantation, Center for Cancer and Blood Disorders, Children's National Medical Center, George Washington University Medical Center; Washington, DC6Experimental Transplantation and Immunology Branch, National Cancer Instit
| | - Jason Y Wong
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts8Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts
| | - Immaculata De Vivo
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts8Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts
| | - Sharon A Savage
- Clinical Genetics Branch, National Cancer Institute, National Institutes of Health, Rockville, Maryland
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22
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Tolar J, Sodani P, Symons H. Alternative donor transplant of benign primary hematologic disorders. Bone Marrow Transplant 2015; 50:619-27. [PMID: 25665040 DOI: 10.1038/bmt.2015.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 12/11/2014] [Accepted: 12/12/2014] [Indexed: 12/21/2022]
Abstract
Hematopoietic SCT is currently the only curative therapy for a range of benign inherited and acquired primary hematologic disorders in children, including BM failure syndromes and hemoglobinopathies. The preferred HLA-matched sibling donor is available for only about 25% of such children. However, there has been substantial progress over the last four decades in the use of alternative donors for those without a matched sibling-including HLA-matched unrelated donors, HLA-haploidentical related donors and unrelated-donor umbilical cord blood-so that it is now possible to find a donor for almost every child requiring an allograft. Below, we summarize the relative merits and limitations of the different alternative donors for benign hematologic conditions, first generally, and then in relation to specific disorders, and suggest recommendations for selecting such an alternative donor.
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Affiliation(s)
- J Tolar
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, USA
| | - P Sodani
- Department of Hematology, Tor Vergata Hospital, Rome, Italy
| | - H Symons
- Department of Pediatrics, John Hopkins Hospital, Baltimore, MD, USA
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23
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Bacigalupo A, Socié G, Hamladji RM, Aljurf M, Maschan A, Kyrcz-Krzemien S, Cybicka A, Sengelov H, Unal A, Beelen D, Locasciulli A, Dufour C, Passweg JR, Oneto R, Signori A, Marsh JCW. Current outcome of HLA identical sibling versus unrelated donor transplants in severe aplastic anemia: an EBMT analysis. Haematologica 2015; 100:696-702. [PMID: 25616576 DOI: 10.3324/haematol.2014.115345] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 01/21/2015] [Indexed: 11/09/2022] Open
Abstract
We have analyzed 1448 patients with acquired aplastic anemia grafted between 2005 and 2009, and compared outcome of identical sibling (n=940) versus unrelated donor (n=508) transplants. When compared to the latter, sibling transplants were less likely to be performed beyond 180 days from diagnosis (39% vs. 85%), to have a cytomegalovirus negative donor/recipient status (15% vs. 23%), to receive antithymocyte globulin in the conditioning (52% vs. 61%), and more frequently received marrow as a stem cell source (60% vs. 52%). Unrelated donor grafts had significantly more acute grade II-IV (25% vs. 13%) and significantly more chronic graft-versus-host disease (26% vs. 14%). In multivariate analysis, the risk of death of unrelated donor grafts was higher, but not significantly higher, compared to a sibling donor (P=0.16). The strongest negative predictor of survival was the use of peripheral blood as a stem cell source (P<0.00001), followed by an interval of diagnosis to transplant of 180 days or more (P=0.0005), patient age 20 years or over (P=0.0005), no antithymocyte globulin in the conditioning (P=0.003), and donor/recipient cytomegalovirus sero-status, other than negative/negative (P=0.04). In conclusion, in multivariate analysis, the outcome of unrelated donor transplants for acquired aplastic anemia, is currently not statistically inferior when compared to sibling transplants, although patients are at greater risk of acute and chronic graft-versus-host disease. The use of peripheral blood grafts remains the strongest negative predictor of survival.
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Affiliation(s)
- Andrea Bacigalupo
- Divisione Ematologia e Trapianti di Midollo Osseo, IRCCS AOU San Martino-IST, Genova, Italy
| | - Gerard Socié
- Hôpital Saint-Louis, Department of Hematology-BMT, Paris Cedex 10, France
| | - Rose Marie Hamladji
- Centre Pierre et Marie Curie, Service Hématologie Greffe de Moëlle, Alger, Algeria
| | - Mahmoud Aljurf
- King Faisal Specialist Hospital and Research Center, Oncology (Section of Adult Haematolgy/BMT), Riyadh, Saudi Arabia
| | - Alexei Maschan
- Federal Research Center for Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | | | - Alicja Cybicka
- Wroclaw Medical University, Department of Children Hematology and Oncology, Bujwida Wroclaw, Poland
| | - Henrik Sengelov
- Rigshospitalet, BMT Unit Department of Hematology L 4042, Department of Bone Marrow Transplantation, University Hospital, Copenhagen, Denmark
| | - Ali Unal
- Erciyes Medical School, Dept. of Hematology-Oncology, Kapadokya, BMT Center, Kayseri, Turkey
| | - Dietrich Beelen
- Department of Bone Marrow Transplantation, University Hospital, Essen, Germany
| | - Anna Locasciulli
- Ospedale S. Camillo, Haematology and SCT Unit, Padiglione Cesalpino Circonvallazione, Rome, Italy
| | | | | | - Rosi Oneto
- Divisione Ematologia e Trapianti di Midollo Osseo, IRCCS AOU San Martino-IST, Genova, Italy
| | - Alessio Signori
- Department of Health Science, Medical Statistics, University of Genova, Italy
| | - Judith C W Marsh
- GKT School of Medicine, Deptartment of Haematological Medicine, King's Denmark Hill Campus, London, UK
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24
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Combined use of Chinese medicine with allogeneic hematopoietic stem cell transplantation for severe aplastic anemia patients. Chin J Integr Med 2014; 20:903-9. [PMID: 25428338 DOI: 10.1007/s11655-014-2026-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Indexed: 10/24/2022]
Abstract
OBJECTIVE To determine the effect of combined treatment with Chinese medicine (CM) and allogeneic hematopoietic stem cell transplantation (allo-HSCT) on patients with severe aplastic anemia (SAA). METHODS Eleven patients were treated with CM plus allo-HSCT. Nine patients received a conditioning regimen consisting of fludarabine (Flu), anti-thymocyte globulin (pig ALG), or anti-lymphocyte globulin (Rabbit ATG) and cyclophosphamide (CY), and two patients received pig ALG and CY. All patients were treated with Kidney (Shen)-reinforcing, blood-activating, and stasis-removing (KBS) herbal preparation beginning at 1 week before transplantation and ending at 8 weeks after transplantation. Chimerism status was assessed by analyzing short tandem repeat (STR) polymorphisms. RESULTS All patients recovered hematopoietic function and none had graft failure. The median number of days required for the absolute neutrophil count (ANC) increased to >0.5×10(9)/L was 15 days (12-22 days) and for spontaneous platelet recovery to >20×10(9)/L without post-transplantation transfusion was 17 days (15-27 days). Nine patients were long-term survivors and achieved full donor chimerism. The overall cumulative incidence of acute graft versus host disease (GVHD) grades I-II and III-IV was 18.2% (2/11) and 9.1% (1/11), respectively. The overall accumulated incidence of chronic GVHD was 27.3% and all patients had limited chronic GVHD. At a median follow-up time of 32 months (range: 12-97 months), 9 patients were still alive. The estimated 5-year overall survival (OS) rate was 81.8%. The incidence of treatment-related mortality, 2-year post-transplantation, was 18.2%. Two patients died from GVHD after transplantation. CONCLUSION Treatment with the KBS formulation may reduce the rate of graft failure and treatment-related mortality and improve the rate of OS in SAA patients with allo-HSCT.
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25
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Abstract
Recent advances in the treatment of aplastic anemia (AA) made most of patients to expect to achieve a long-term survival. Allogeneic stem cell transplantation (SCT) from HLA-matched sibling donor (MSD-SCT) is a preferred first-line treatment option for younger patients with severe or very severe AA, whereas immunosuppressive treatment (IST) is an alternative option for others. Horse anti-thymocyte globuline (ATG) with cyclosporin A (CsA) had been a standard IST regimen with acceptable response rate. Recently, horse ATG had been not available and replaced with rabbit ATG in most countries. Subsequently, recent comparative studies showed that the outcomes of patients who received rabbit ATG/CsA were similar or inferior compared to those who received horse ATG/CsA. Therefore, further studies to improve the outcomes of IST, including additional eltrombopag, are necessary. On the other hand, the upper age limit of patients who are able to receive MSD-SCT as first-line treatment is a current issue because of favorable outcomes of MSD-SCT of older patients using fludarabine-based conditioning. In addition, further studies to improve the outcomes of patients who receive allogeneic SCT from alternative donors are needed. In this review, current issues and the newly emerging trends that may improve their outcomes in near futures will be discussed focusing the management of patients with AA.
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Affiliation(s)
- Seung Hwan Shin
- Department of Hematology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Eun Lee
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Wook Lee
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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26
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Marotta S, Pagliuca S, Risitano AM. Hematopoietic stem cell transplantation for aplastic anemia and paroxysmal nocturnal hemoglobinuria: current evidence and recommendations. Expert Rev Hematol 2014; 7:775-89. [DOI: 10.1586/17474086.2014.967678] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Kim SY, Le Rademacher J, Antin JH, Anderlini P, Ayas M, Battiwalla M, Carreras J, Kurtzberg J, Nakamura R, Eapen M, Deeg HJ. Myelodysplastic syndrome evolving from aplastic anemia treated with immunosuppressive therapy: efficacy of hematopoietic stem cell transplantation. Haematologica 2014; 99:1868-75. [PMID: 25107891 DOI: 10.3324/haematol.2014.108977] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
A proportion of patients with aplastic anemia who are treated with immunosuppressive therapy develop clonal hematologic disorders, including post-aplastic anemia myelodysplastic syndrome. Many will proceed to allogeneic hematopoietic stem cell transplantation. We identified 123 patients with post-aplastic anemia myelodysplastic syndrome who from 1991 through 2011 underwent allogeneic hematopoietic stem cell transplantation, and in a matched-pair analysis compared outcome to that in 393 patients with de novo myelodysplastic syndrome. There was no difference in overall survival. There were no significant differences with regard to 5-year probabilities of relapse, non-relapse mortality, relapse-free survival and overall survival; these were 14%, 40%, 46% and 49% for post-aplastic anemia myelodysplastic syndrome, and 20%, 33%, 47% and 49% for de novo myelodysplastic syndrome, respectively. In multivariate analysis, relapse (hazard ratio 0.71; P=0.18), non-relapse mortality (hazard ratio 1.28; P=0.18), relapse-free survival (hazard ratio 0.97; P=0.80) and overall survival (hazard ratio 1.02; P=0.88) of post-aplastic anemia myelodysplastic syndrome were similar to those of patients with de novo myelodysplastic syndrome. Cytogenetic risk was independently associated with overall survival in both groups. Thus, transplant success in patients with post-aplastic anemia myelodysplastic syndrome was similar to that in patients with de novo myelodysplastic syndrome, and cytogenetics was the only significant prognostic factor for post-aplastic anemia myelodysplastic syndrome patients.
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Affiliation(s)
- Sung-Yong Kim
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA; KonKuk University Medical Center, KonKuk University School of Medicine, Seoul, Republic of Korea
| | - Jennifer Le Rademacher
- Center for International Blood & Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA; Division of Biostatistics, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Paolo Anderlini
- The University of Texas MD Anderson Cancer Center, Department of Stem Cell Transplantation and Cellular Therapy, Houston, TX, USA
| | - Mouhab Ayas
- Department of Pediatric Hematology/Oncology, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - Minoo Battiwalla
- National Heart, Lung, and Blood Institute, Hematology Branch, National Institutes of Health, Bethesda, MD, USA
| | - Jeanette Carreras
- Center for International Blood & Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Joanne Kurtzberg
- Dept of Pediatrics/Pediatrics Blood & Marrow Transplantation, Duke University Medical Center, Durham, NC, USA
| | | | - Mary Eapen
- Center for International Blood & Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - H Joachim Deeg
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA;
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Eckrich MJ, Ahn KW, Champlin RE, Coccia P, Godder K, Horan J, Margolis D, Deeg H, Eapen M. Effect of race on outcomes after allogeneic hematopoietic cell transplantation for severe aplastic anemia. Am J Hematol 2014; 89:125-9. [PMID: 24122901 DOI: 10.1002/ajh.23594] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 09/16/2013] [Indexed: 11/06/2022]
Abstract
We compared outcomes after hematopoietic cell transplantation in patients of African American (n = 84) and Caucasian (n = 215) descent with severe aplastic anemia. African Americans and Caucasians were matched for age, donor-recipient human leukocyte antigen match, graft type, and transplantation year. The median follow-up of surviving patients was 5 years. In multivariate analysis, overall mortality risks were higher for African Americans compared to Caucasians (relative risk 1.73, P = 0.01). The 5-year probabilities of overall survival adjusted for interval from diagnosis to transplantation, and performance score was 58% for African Americans and 73% for Caucasians. The day-100 cumulative incidence of grade III-IV, but not grade II-IV acute graft-versus-host disease (GVHD), was higher in African Americans compared to Caucasians (29% vs. 13%, P = 0.006). Although the 5-year cumulative incidence of chronic GVHD was not significantly different between the racial groups, African Americans were more likely to have extensive chronic GVHD compared to Caucasians (72% vs. 49%, P = 0.06). Survival differences between Caucasians and African Americans can be attributed to multiple factors. Our data suggest that some of the observed survival differences between Caucasians and African Americans may be explained by higher rates of acute GVHD and severity of chronic GVHD.
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Affiliation(s)
- Michael J. Eckrich
- Department of Medicine; Center for International Blood and Marrow Transplant Research; Medical College of Wisconsin Milwaukee Wisconsin
| | - Kwang-Woo Ahn
- Department of Medicine; Center for International Blood and Marrow Transplant Research; Medical College of Wisconsin Milwaukee Wisconsin
- Division of Biostatistics; Medical College of Wisconsin; Milwaukee Wisconsin
| | - Richard E. Champlin
- Department of Stem Cell Transplantation and Cellular Therapy; MD Anderson Cancer Center; Houston Texas
| | - Peter Coccia
- Division of Hematology/Oncology; University of Nebraska Medical Center; Omaha Nebraska
| | - Kamar Godder
- Division of Hematology and Oncology; Virginia Commonwealth University; Richmond Virginia
| | | | - David Margolis
- Division of Hematology/Oncology; Medical College of Wisconsin; Milwaukee Wisconsin
| | - H.Joachim Deeg
- Clinical Research Division; Fred Hutchinson Cancer Research Center; Seattle Washington
| | - Mary Eapen
- Department of Medicine; Center for International Blood and Marrow Transplant Research; Medical College of Wisconsin Milwaukee Wisconsin
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Kulagin A, Lisukov I, Ivanova M, Golubovskaya I, Kruchkova I, Bondarenko S, Vavilov V, Stancheva N, Babenko E, Sipol A, Pronkina N, Kozlov V, Afanasyev B. Prognostic value of paroxysmal nocturnal haemoglobinuria clone presence in aplastic anaemia patients treated with combined immunosuppression: results of two-centre prospective study. Br J Haematol 2013; 164:546-54. [DOI: 10.1111/bjh.12661] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 10/09/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander Kulagin
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | - Igor Lisukov
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | - Maria Ivanova
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | - Irina Golubovskaya
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | | | - Sergey Bondarenko
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | - Vladimir Vavilov
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | - Natalia Stancheva
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | - Elena Babenko
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | - Alexandra Sipol
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
| | | | | | - Boris Afanasyev
- First Pavlov State Medical University of St. Petersburg; St. Petersburg Novosibirsk Russia
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30
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Patel SR, Zimring JC. Transfusion-induced bone marrow transplant rejection due to minor histocompatibility antigens. Transfus Med Rev 2013; 27:241-8. [PMID: 24090731 DOI: 10.1016/j.tmrv.2013.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 08/15/2013] [Accepted: 08/17/2013] [Indexed: 11/18/2022]
Abstract
Traditionally, alloimmunization to transfused blood products has focused exclusively on recipient antibodies recognizing donor alloantigens present on the cell surface. Accordingly, the immunologic sequelae of alloimmunization have been antibody mediated effects (ie, hemolytic transfusion reactions, platelet refractoriness, anti-HLA and anti-HNA effects, etc). However, in addition to the above sequelae, there is also a correlation between the number of antecedent transfusions in humans and the rate of bone marrow transplant (BMT) rejection-under reduced intensity conditioning with HLA-matched or HLA-identical marrow. Bone marrow transplant of this nature is the only existing cure for a series of nonmalignant hematologic diseases (eg, sickle cell disease, thalassemias, etc); however, rejection remains a clinical problem. It has been hypothesized that transfusion induces subsequent BMT rejection through immunization. Studies in animal models have observed the same effect and have demonstrated that transfusion-induced BMT rejection can occur in response to alloimmunization. However, unlike traditional antibody responses, sensitization in this case results in cellular immune effects, involving populations such as T cell or natural killer cells. In this case, rejection occurs in the absence of alloantibodies and would not be detected by existing immune-hematologic methods. We review human and animal studies in light of the hypothesis that, for distinct clinical populations, enhanced rejection of BMT may be an unappreciated adverse consequence of transfusion, which current blood bank methodologies are unable to detect.
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Affiliation(s)
- Seema R Patel
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
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Maury S, Balère-Appert ML, Pollichieni S, Oneto R, Yakoub-Agha I, Locatelli F, Dalle JH, Lanino E, Fischer A, Pession A, Huynh A, Barberi W, Mohty M, Risitano A, Milpied N, Socié G, Bacigalupo A, Marsh J, Passweg JR. Outcome of patients activating an unrelated donor search for severe acquired aplastic anemia. Am J Hematol 2013; 88:868-73. [PMID: 23804195 DOI: 10.1002/ajh.23522] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 06/14/2013] [Accepted: 06/18/2013] [Indexed: 11/12/2022]
Abstract
Patients with severe aplastic anemia (SAA) without a sibling donor receive immunosuppressive treatment (IST) with anti-thymocyte globulin (ATG). In the case of no response to IST, a voluntary unrelated donor (VUD) search is usually started. This study analyzes the outcome of ATG-refractory SAA patients activating a VUD search. Of 179 patients, 68 had at least one HLA-A, -B, and -DR matched donor identified and underwent HSCT while 50 also with a donor were not transplanted because of early death (8), late response to IST (34), transplant refusal (1), or other (7). Conversely, 61 had no matched donor, 13 of those ultimately received a mismatched HSCT. All but one received marrow stem cells. Among patients aged <17 years, those with at least one matched donor had a significant higher 4-year survival as compared to others (79% ± 6% versus 53% ± 10%, P = 0.01). There was also a survival advantage independent of recipient age when the donor search was initiated in the recent 2000-2005 study-period (74% ± 6% versus 47% ± 10%, P < 0.05). In multivariate analysis, the identification of a matched VUD tended to impact favourably on survival in patients with a recent donor search (P = 0.07). This study provides evidence for the use of unrelated donor HSCT in children and adults with IST-refractory SAA.
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32
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Chen J, Lee V, Luo CJ, Chiang AKS, Hongeng S, Tan PL, Tan AM, Sanpakit K, Li CF, Lee ACW, Chua HC, Okamoto Y. Allogeneic stem cell transplantation for children with acquired severe aplastic anaemia: a retrospective study by the Viva-Asia Blood and Marrow Transplantation Group. Br J Haematol 2013; 162:383-91. [PMID: 23735201 DOI: 10.1111/bjh.12405] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Accepted: 04/09/2013] [Indexed: 02/05/2023]
Abstract
We retrospectively analysed the outcomes of 127 children with acquired severe aplastic anaemia (SAA) who had received haematopoietic stem cell transplantation (HSCT) between 2000 and 2011 in one of the 10 Asia Pacific institutions. Fifty-three were matched sibling donor (MSD) and 74 were alternative donor (AD), including 22 matched unrelated donor, 32 mismatched unrelated donor and 20 mismatched related donor. With a median follow up 45.5 months (13-139) and when compared to the MSD group, AD recipients had more grade II-IV acute graft-versus-host disease (aGVHD; 14.3% vs. 32.8%, P = 0.029), but similar grade III-IV aGVHD (10.2% vs. 12.5%, P = 0.774), graft failure (GF) (15.1% vs. 15.5%, P = 0.658) and 5-year overall survival (90.6% vs. 83.7%, P = 0.251). As a source of stem cell, peripheral blood stem cells (PBSC) resulted in less GF (18% vs. 9.1% P = 0.013), similar grade II-IV aGVHD (28.1% vs. 17.4%, P = 0.258), chronic GVHD (25.8% vs. 29.3%, P = 0.822) and similar outcomes (89.7% vs. 82.4%, P =0.665) when compared to bone marrow (BM). In univariate analysis, GF (P < 0.001) and grade II-IV aGVHD (P = 0.009) were predictors of poor survival. In multivariate analysis, only GF was associated with poor survival (P = 0.012). The outcome of AD and PBSC HSCT were comparable to that of MSD and BM HSCT in the Asia Pacific region.
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Affiliation(s)
- Jing Chen
- Department of Haematology/Oncology, Shanghai Jiao Tong University School of Medicine, Shanghai Children's Medical Centre, Shanghai, China.
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Allogeneic stem cell transplantation using alemtuzumab-containing regimens in severe aplastic anemia. Int J Hematol 2013; 97:573-80. [PMID: 23632948 DOI: 10.1007/s12185-013-1333-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 04/10/2013] [Indexed: 10/26/2022]
Abstract
Alemtuzumab, a humanized anti-CD52, IgG1 monoclonal antibody, is used to reduce graft-versus- host disease (GVHD) and aid engraftment after allogeneic haemopoietic stem cell transplant (HSCT). Its associated low incidence of GVHD makes it an attractive alternative to anti-thymocyte globulin (ATG) in transplant conditioning regimen for severe aplastic anaemia (SAA). We have reviewed the use of alemtuzumab-based conditioning regimen for HSCT in SAA and show that it results in sustained haematological engraftment, a very low incidence of chronic GVHD without an increase in viral infections. Intriguingly, alemtuzumab appears to induce tolerance post-HSCT with the findings of stable mixed T cell chimerism with full donor myeloid chimerism and the absence of chronic GVHD, and which persist on withdrawal of post-graft immunosuppression. Finally, its low toxicity profile may permit future application of HSCT to older patients with SAA who fail to respond to immunosuppressive therapy.
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34
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Abstract
The diagnosis of aplastic anemia in children requires exclusion of a variety of inherited or acquired BM failure syndromes with similar phenotypes. An efficient diagnostic plan is important because time from diagnosis to 'final' treatment is directly related to outcome regardless of the therapeutic option chosen. The gold standard of therapy remains hematopoietic SCT with a graft of BM cells for those children with matched sibling donors. Conversely for children without a sibling donor the high response and markedly improved overall survival rates of combined immunosuppressive therapy have proven robust, especially when horse derived anti-thymocyte globuline plus ciclosporine A are used. Incomplete response, relapse and progression to myelodysplasia/leukemia however have emerged as significant long-term issues. Improvements in outcome of alternative donor transplantation and the use of established and novel immunosuppressive agents provide multiple alternatives for treating refractory or relapsed patients. Regardless of the type of therapeutic approach, patients require centralized treatment in a center of excellence, ongoing monitoring for recurrence of disease and/or therapy-related immediate side effects and long-term effects.
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Socié G. Allogeneic BM transplantation for the treatment of aplastic anemia: current results and expanding donor possibilities. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2013; 2013:82-86. [PMID: 24319167 DOI: 10.1182/asheducation-2013.1.82] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Allogeneic BM transplantation from an HLA-identical sibling donor leads to long-term survival in the majority of patients (>80%). Therefore, survival is no longer the sole concern and attention has to be paid to decreasing the incidence and severity of long-term complications. For patients without a sibling donor, transplantation from a well-matched unrelated donor can be considered after failure of a previous course of immunosuppressive therapy. After transplantation from an HLA-identical sibling donor or from an unrelated one, the use of peripheral blood stem cells must be strongly discouraged because they have been systematically associated with an increased incidence of chronic GVHD compared with the use of BM as a stem cell source, leading to an unacceptably higher risk of treatment-related mortality in this setting. For as yet unknown reasons, the age limit after which transplantation results are less satisfactory remains 40 years of age.
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Affiliation(s)
- Gérard Socié
- 1Hematology/Transplantation and French Reference Center for Rare Disease, Aplastic Anemia, Hospital Saint Louis, Paris, France
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36
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Abstract
Abstract
Advances in hematopoietic stem cell transplantation (HSCT) and immunosuppressive therapy (IST) have improved survival in severe aplastic anemia (SAA) from 10%-20% in the 1960s to 80%-90% today. A matched sibling HSCT is the treatment of choice in younger patients, whereas IST is often used in older patients or in those who lack a histocompatible sibling. Graft rejection, GVHD, and poor immune reconstitution (with associated infectious complications) limit the success of HSCT, whereas lack of response, relapse, and clonal evolution limit the success of IST. The historically high rate of graft rejection in SAA is now less problematic in the matched setting, but with greater rates observed with unrelated and umbilical cord donors. The correlation of increasing age with the risk of GVHD and the significant morbidity and mortality of this transplantation complication continue to affect the decision to pursue HSCT versus IST as initial therapy in adults with SAA. Outcomes with matched unrelated donor HSCT have improved, likely due to better donor selection, supportive care, and improved transplantation protocols. Results with mismatched unrelated donor and umbilical HSCT are not as favorable, with higher rates of graft rejection, GVHD, and infectious complications. Investigation of several upfront alternative IST protocols has not improved outcomes beyond horse antithymocyte globulin and cyclosporine. More recently, the role of alemtuzumab in SAA has been better defined and an oral thrombomimetic, eltrombopag, is showing promising activity in refractory cases. The most recent advances in HSCT and IST in SAA are discussed in this review.
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Bacigalupo A, Marsh JCW. Unrelated donor search and unrelated donor transplantation in the adult aplastic anaemia patient aged 18-40 years without an HLA-identical sibling and failing immunosuppression. Bone Marrow Transplant 2012. [PMID: 23178545 DOI: 10.1038/bmt.2012.233] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Currently at least 75% of patients with severe aplastic anaemia can be successfully transplanted using a matched unrelated donor (UD) haematopoietic SCT (HSCT). For children, outcomes are similar to matched sibling donor (MSD) HSCT. This improvement in outcome over time is likely due to improved HLA tissue typing to identify better matched donors, improvements in the conditioning regimen, particularly fludarabine-based regimens, and improved supportive care. Graft rejection occurs in ∼15% of adults, but is less frequent in children. Chronic GVHD remains a concern but may be reduced by using Alemtuzumab instead of ATG. UD HSCT should be considered early after failure to respond to one course of immunosuppressive therapy, but for children who lack a MSD up front matched UD HSCT may be considered.
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Affiliation(s)
- A Bacigalupo
- Department of Haematology II, Azienda Ospedaliera Universitaria San Martino, Genoa, Italy
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38
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Urban C, Benesch M, Sovinz P, Sipurzynski S, Lackner H, Müller E, Schwinger W. Alternative donor HSCT in refractory acquired aplastic anemia - prevention of graft rejection and graft versus host disease by immunoablative conditioning and graft manipulation. Pediatr Transplant 2012; 16:577-81. [PMID: 22462513 DOI: 10.1111/j.1399-3046.2012.01692.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Early alternative donor HSCT is a potentially curative therapeutic option for patients with AAA not responding to IST. Seven patients (median age at diagnosis, 11 yr) with refractory AAA without a MSD underwent HSCT from matched unrelated (n = 6) or haploidentical (n = 1) donors. Conditioning regimens included CY (n = 7), muromonab-CD3/ATG (n = 7), TT (n = 6), FLU (n = 5), and TLI (n = 2). Grafts were either CD34 purified and/or CD3/19 depleted and contained a median of 10.17 × 10(6) /kg CD34 and 5.5 × 10(4) /kg CD3 cells. All patients engrafted rapidly. Median time to leukocyte engraftment was 10 days. With a median follow-up of 26 (range, 11-153) months, six patients are alive and well with complete donor hematopoiesis. One heavily pretreated patient developed GVHD grade III and died from progressive renal failure (resulting from microangiopathic hemolytic anemia) and disseminated aspergillosis. Early alternative donor HSCT can help to avoid complications from prolonged IST and presumably improve survival of patients with refractory AAA. Administration of high doses of CD34 purified and/or CD3/19 depleted stem cells following novel immunoablative conditioning may prevent graft rejection and GVHD. However, a long interval from diagnosis to HSCT seems to be associated with poor outcome.
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Affiliation(s)
- Christian Urban
- Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
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39
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Patel SR, Smith NH, Kapp L, Zimring JC. Mechanisms of alloimmunization and subsequent bone marrow transplantation rejection induced by platelet transfusion in a murine model. Am J Transplant 2012; 12:1102-12. [PMID: 22300526 PMCID: PMC4296674 DOI: 10.1111/j.1600-6143.2011.03959.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
For many nonmalignant hematological disorders, HLA-matched bone marrow transplantation (BMT) is curative. However, due to lack of neoplasia, the toxicity of stringent conditioning regimens is difficult to justify, and reduced intensity conditioning is used. Unfortunately, current reduced intensity regimens have high rates of BMT rejection. We have recently reported in a murine model that mHAs on transfused platelet products induce subsequent BMT rejection. Most nonmalignant hematological disorders require transfusion support prior to BMT and the rate of BMT rejection in humans correlates with the number of transfusions given. Herein, we perform a mechanistic analysis of platelet transfusion-induced BMT rejection and report that unlike exposure to alloantigens during transplantation, platelet transfusion primes alloimmunity but does not stimulate full effector function. Subsequent BMT is itself an additional and distinct immunizing event, which does not induce rejection without antecedent priming from transfusion. Both CD4(+) and CD8(+) T cells are required for priming during platelet transfusion, but only CD8(+) T cells are required for BMT rejection. In neither case are antibodies required for rejection to occur.
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Affiliation(s)
- Seema R Patel
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA
| | - Nicole H Smith
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA
| | - Linda Kapp
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA
| | - James C Zimring
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA,Department of Pediatrics, Aflac cancer center and blood disorders service, Emory University School of medicine, Atlanta, GA,Address all correspondence to James C. Zimring, MD PhD, Emory University School of Medicine, 101 Woodruff Circle room 7101, Atlanta, GA 30322, USA (Telephone 404-712-2174, Fax 404-727-5764)
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Tolar J, Deeg HJ, Arai S, Horwitz M, Antin JH, McCarty JM, Adams RH, Ewell M, Leifer ES, Gersten ID, Carter SL, Horowitz MM, Nakamura R, Pulsipher MA, Difronzo NL, Confer DL, Eapen M, Anderlini P. Fludarabine-based conditioning for marrow transplantation from unrelated donors in severe aplastic anemia: early results of a cyclophosphamide dose deescalation study show life-threatening adverse events at predefined cyclophosphamide dose levels. Biol Blood Marrow Transplant 2012; 18:1007-11. [PMID: 22546497 DOI: 10.1016/j.bbmt.2012.04.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Accepted: 04/23/2012] [Indexed: 10/28/2022]
Abstract
Excessive adverse events were encountered in a Phase I/II study of cyclophosphamide (CY) dose deescalation in a fludarabine-based conditioning regimen for bone marrow transplantation from unrelated donors in patients with severe aplastic anemia. All patients received fixed doses of antithymocyte globulin, fludarabine, and low-dose total body irradiation. The starting CY dose was 150 mg/kg, with deescalation to 100 mg/kg, 50 mg/kg, or 0 mg/kg. CY dose level 0 mg/kg was closed due to graft failure in 3 of 3 patients. CY dose level 150 mg/kg was closed due to excessive organ toxicity (n = 6) or viral pneumonia (n = 1), resulting in the death of 7 of 14 patients. CY dose levels 50 and 100 mg/kg remain open. Thus, CY at doses of 150 mg/kg in combination with total body irradiation (2 Gy), fludarabine (120 mg/m(2)), and antithymocyte globulin was associated with excessive organ toxicity.
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Affiliation(s)
- Jakub Tolar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota Medical School, 420 Delaware Street SE, Minneapolis,MN 55455, USA.
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Abstract
Survival in severe aplastic anemia (SAA) has markedly improved in the past 4 decades because of advances in hematopoietic stem cell transplantation, immunosuppressive biologics and drugs, and supportive care. However, management of SAA patients remains challenging, both acutely in addressing the immediate consequences of pancytopenia and in the long term because of the disease's natural history and the consequences of therapy. Recent insights into pathophysiology have practical implications. We review key aspects of differential diagnosis, considerations in the choice of first- and second-line therapies, and the management of patients after immunosuppression, based on both a critical review of the recent literature and our large personal and research protocol experience of bone marrow failure in the Hematology Branch of the National Heart, Lung, and Blood Institute.
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42
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Matched Sibling Versus Matched Unrelated Allogeneic Hematopoietic Stem Cell Transplantation in Children with Severe Acquired Aplastic Anemia: Experience of the Polish Pediatric Group for Hematopoietic Stem Cell Transplantation. Arch Immunol Ther Exp (Warsz) 2012; 60:225-33. [DOI: 10.1007/s00005-012-0174-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 02/10/2012] [Indexed: 10/28/2022]
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43
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Samarasinghe S, Steward C, Hiwarkar P, Saif MA, Hough R, Webb D, Norton A, Lawson S, Qureshi A, Connor P, Carey P, Skinner R, Vora A, Pelidis M, Gibson B, Stewart G, Keogh S, Goulden N, Bonney D, Stubbs M, Amrolia P, Rao K, Meyer S, Wynn R, Veys P. Excellent outcome of matched unrelated donor transplantation in paediatric aplastic anaemia following failure with immunosuppressive therapy: a United Kingdom multicentre retrospective experience. Br J Haematol 2012; 157:339-46. [PMID: 22372373 DOI: 10.1111/j.1365-2141.2012.09066.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 01/16/2012] [Indexed: 11/28/2022]
Abstract
We retrospectively analysed the outcome of consecutive children with idiopathic severe aplastic anaemia in the United Kingdom who received immunosuppressive therapy (IST) or matched unrelated donor (MUD) haematopoietic stem cell transplantation (HSCT). The 6-month cumulative response rate following rabbit antithymocyte globulin (ATG)/ciclosporin (IST) was 32·5% (95% CI 19·3-46·6) (n = 43). The 5-year estimated failure-free survival (FFS) following IST was 13·3% (95% confidence interval [CI] 4·0-27·8). In contrast, in 44 successive children who received a 10-antigen (HLA-A, -B, -C, -DRB1, -DQB1) MUD HSCT there was an excellent estimated 5-year FFS of 95·01% (95% CI 81·38-98·74). Forty of these children had failed IST previously. HSCT conditioning was a fludarabine, cyclophosphamide and alemtuzumab (FCC) regimen and did not include radiotherapy. There were no cases of graft failure. Median donor chimerism was 100% (range 88-100%). A conditioning regimen, such as FCC that avoids total body irradiation is ideally suited in children. Our data suggest that MUD HSCT following IST failure offers an excellent outcome and furthermore, if a suitable MUD can be found quickly, MUD HSCT may be a reasonable alternative to IST.
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Affiliation(s)
- Sujith Samarasinghe
- Department of Paediatric & Adolescent Haematology, Great North Children's Hospital, Newcastle upon Tyne, UK
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Samarasinghe S, Webb DKH. How I manage aplastic anaemia in children. Br J Haematol 2012; 157:26-40. [PMID: 22348483 DOI: 10.1111/j.1365-2141.2012.09058.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 01/09/2012] [Indexed: 01/09/2023]
Abstract
Aplastic anaemia (AA) is a rare heterogeneous condition in children. 15-20% of cases are constitutional and correct diagnosis of these inherited causes of AA is important for appropriate management. For idiopathic severe aplastic anaemia, a matched sibling donor (MSD) haematopoietic stem cell transplant (HSCT) is the treatment of choice. If a MSD is not available, the options include immunosuppressive therapy (IST) or unrelated donor HSCT. IST with horse anti-thymocyte globulin (ATG) is superior to rabbit ATG and has good long-term results. In contrast, IST with rabbit ATG has an overall response of only 30-40%. Due to improvements in outcome over the last two decades in matched unrelated donor (MUD) HSCT, results are now similar to that of MSD HSCT. The decision to proceed with IST with ATG or MUD HSCT will depend on the likelihood of finding a MUD and the differing risks and benefits that each therapy provides.
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Affiliation(s)
- Sujith Samarasinghe
- Paediatric Haematopoietic Stem Cell Transplant Unit, Department of Adolescent and Paediatric Haematology and Oncology, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, UK.
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45
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Gilson CR, Patel SR, Zimring JC. CTLA4-Ig prevents alloantibody production and BMT rejection in response to platelet transfusions in mice. Transfusion 2012; 52:2209-19. [PMID: 22321003 DOI: 10.1111/j.1537-2995.2011.03550.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Platelet (PLT) transfusions can induce humoral and cellular alloimmunity. HLA antibodies can render patients refractory to subsequent transfusion, and both alloantibodies and cellular alloimmunity can contribute to subsequent bone marrow transplant (BMT) rejection. Currently, there are no approved therapeutic interventions to prevent alloimmunization to PLT transfusions other than leukoreduction. Targeted blockade of T-cell costimulation has shown great promise in inhibiting alloimmunity in the setting of transplantation, but has not been explored in the context of PLT transfusion. STUDY DESIGN AND METHODS We tested the hypothesis that the costimulatory blockade reagent CTLA4-Ig would prevent alloreactivity against major and minor alloantigens on transfused PLTs. BALB/c (H-2(d)) mice and C57BL/6 (H-2(b)) mice were used as PLT donors and transfusion recipients, respectively. Alloantibodies were measured by indirect immunofluorescence using BALB/c PLTs and splenocytes as targets. BMTs were carried out under reduced-intensity conditioning using BALB.B (H-2(b) ) donors and C57BL/6 (H-2(b)) recipients to model HLA-identical transplants. Experimental groups were given CTLA4-Ig (before or after PLT transfusion) with control groups receiving isotype-matched antibody. RESULTS CTLA4-Ig abrogated both humoral alloimmunization (H-2(d) antibodies) and transfusion-induced BMT rejection. Whereas a single dose of CTLA4-Ig at time of transfusion prevented alloimmunization to subsequent PLT transfusions, administration of CTLA4-Ig after initial PLT transfusion was ineffective. Delaying treatment until after PLT transfusion failed to prevent BMT rejection. CONCLUSIONS These findings demonstrate a novel strategy using an FDA-approved drug that has the potential to prevent the clinical sequelae of alloimmunization to PLT transfusions.
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Affiliation(s)
- Christopher R Gilson
- Center for Transfusion and Cellular Therapies, Department of Pathology and Laboratory Medicine, and the Aflac Cancer Center and Blood Disorders Service, Emory University School of Medicine, Atlanta, Georgia 30322, USA
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46
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Nowak J, Mika-Witkowska R, Graczyk-Pol E. Genetic Methods of HLA Typing. MOLECULAR ASPECTS OF HEMATOLOGIC MALIGNANCIES 2012. [DOI: 10.1007/978-3-642-29467-9_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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47
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Desmarets M, Mylvaganam G, Waller EK, Josephson CD, Pack C, Lukacher AE, Zimring JC. Minor antigens on transfused RBCs crossprime CD8 T cells but do not induce full effector function. Am J Transplant 2011; 11:1825-34. [PMID: 21884408 PMCID: PMC4284100 DOI: 10.1111/j.1600-6143.2011.03730.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
HLA-matched bone marrow transplantation (BMT) is a cure for nonmalignant hematological disorders; however, rejection rates are high and correlate with the number of antecedent transfusions. Recently, using murine models, we reported that minor antigens (mHAs) in transfused leukoreduced red blood cell (RBC) or platelet units induce rejection of subsequent BMT. To study RBCs as an immunogen, we utilized transgenic donors that express a model mHA selectively on RBCs (HOD mouse). Transfusion of HOD blood did not induce BMT rejection of marrow that shared mHAs with the HOD RBCs. Similarly, no endogenous anti-HOD CD8(+) T-cell response was detected with antigen-specific tetramer reagents. Adoptively transferred OT-I T cells rapidly expanded after HOD blood transfusion; however, only a semi-effector phenotype was observed (tumor necrosis factor-α and interferon-γ secretion, but essentially no Granzyme B). After initial expansion, OT-I T cells contracted rapidly to very low levels. A similar trend was observed by in vivo CTL assay, with only transient lytic activity. Together, these data indicate that RBCs may not be the component of RBC units that induces BMT rejection, and suggest that contaminating platelets or leukocytes may be responsible.
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Affiliation(s)
- Maxime Desmarets
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322
| | - Geetha Mylvaganam
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322
| | - Edmund K. Waller
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322
| | - Cassandra D. Josephson
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322,Department of Pediatrics, Aflac Cancer Center and Blood Disorders Services, Emory University School of Medicine, Atlanta, GA 30322
| | - Christopher Pack
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322
| | - Aron E. Lukacher
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322
| | - James C. Zimring
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322,Department of Pediatrics, Aflac Cancer Center and Blood Disorders Services, Emory University School of Medicine, Atlanta, GA 30322,Corresponding author: James C. Zimring, M.D., Ph.D., Center for Transfusion and Cellular Therapies, Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Woodruff Memorial Building Suite 7107, 101 Woodruff Circle, Atlanta, GA 30322, USA (Telephone: 404-272-2174, Fax 404-727-5764)
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48
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Alemtuzumab with fludarabine and cyclophosphamide reduces chronic graft-versus-host disease after allogeneic stem cell transplantation for acquired aplastic anemia. Blood 2011; 118:2351-7. [DOI: 10.1182/blood-2010-12-327536] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
We evaluated a novel alemtuzumab-based conditioning regimen in HSCT for acquired severe aplastic anemia (SAA). In a multicenter retrospective study, 50 patients received transplants from matched sibling donors (MSD; n = 21) and unrelated donors (UD; n = 29), using fludarabine 30 mg/m2 for 4 days, cyclophosphamide 300 mg/m2 for 4 days, and alemtuzumab median total dose of 60 mg (range:40-100 mg). Median age was 35 years (range 8-62). Overall survival at 2 years was 95% ± 5% for MSD and 83% for UD HSCT (p 0.34). Cumulative incidence of graft failure was 9.5% for MSD and 14.5% for UD HSCT. Full-donor chimerism (FDC) in unfractionated peripheral blood was 42%; no patient achieved CD3 FDC. Acute GVHD was observed in only 13.5% patients (all grade I-II) and only 2 patients (4%) developed chronic GVHD. A low incidence of viral infections was seen. Factors influencing overall survival were HSCT comorbidity 2-year index (92% with score 0-1 vs 42% with score ≥ 2, P < .001) and age (92% for age < 50 years vs 71% ≥ 50 years, P < .001). Our data suggest that the use of an alemtuzumab-based HSCT regimen for SAA results in durable engraftment with a low incidence of chronic GVHD.
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49
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Abstract
Acquired aplastic anemia is a potentially fatal bone marrow failure disorder that is characterized by pancytopenia and a hypocellular bone marrow. Hematopoietic stem-cell transplantation or bone marrow transplantation (BMT) is the treatment of choice for young patients who have a matched sibling donor. Immunosuppression with either anti-thymocyte globulin and cyclosporine or high-dose cyclophosphamide is an effective therapy for patients who are not suitable BMT candidates owing to age or lack of a suitable donor. Results of BMT from unrelated and mismatched donors are improving, but presently this treatment option is best reserved for those patients who do not respond, relapse or develop secondary clonal disorders following immunosuppressive therapy. Efforts are currently underway to both improve immunosuppressive regimens and to expand the application of BMT.
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Affiliation(s)
- Amy E Dezern
- Division of Medical Oncology, Department of Medicine, The Johns Hopkins School of Medicine, 720 Rutland Avenue, Baltimore, MD 21205, USA
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50
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Acceptable HLA-mismatching in unrelated donor bone marrow transplantation for patients with acquired severe aplastic anemia. Blood 2011; 118:3186-90. [PMID: 21757619 DOI: 10.1182/blood-2011-04-349316] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We retrospectively analyzed the effect of HLA mismatching (HLA-A, -B, -C, -DRB1, -DQB1) with molecular typing on transplantation outcome for 301 patients with acquired severe aplastic anemia (SAA) who received an unrelated BM transplant through the Japan Marrow Donor Program. Additional effect of HLA-DPB1 mismatching was analyzed for 10 of 10 or 9 of 10 HLA allele-matched pairs (n = 169). Of the 301 recipient/donor pairs, 101 (33.6%) were completely matched at 10 of 10 alleles, 69 (23%) were mismatched at 1 allele, and 131 (43.5%) were mismatched at ≥ 2 alleles. Subjects were classified into 5 subgroups: complete match group (group I); single-allele mismatch group (groups II and III); multiple alleles restricted to HLA-C, -DRB1, and -DQB1 mismatch group (group IV); and others (group V). Multivariate analysis indicated that only HLA disparity of group V was a significant risk factor for poor survival and grade II-IV acute GVHD. HLA-DPB1 mismatching was not associated with any clinical outcome. We recommend the use of an HLA 10 of 10 allele-matched unrelated donor. However, if such a donor is not available, any single-allele or multiple-allele (HLA-C, -DRB1, -DQB1) mismatched donor is acceptable as an unrelated donor for patients with severe aplastic anemia.
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