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Zhao X, Lv W, Song K, Yao W, Li C, Tang B, Wan X, Geng L, Sun G, Qiang P, Liu H, Liu H, Sun Z. Upfront Umbilical Cord Blood Transplantation Versus Immunosuppressive Therapy for Pediatric Patients With Idiopathic Severe Aplastic Anemia. Transplant Cell Ther 2024; 30:442.e1-442.e13. [PMID: 38278182 DOI: 10.1016/j.jtct.2024.01.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/14/2023] [Accepted: 01/17/2024] [Indexed: 01/28/2024]
Abstract
Umbilical cord blood transplantation (UCBT) has been rarely reported as a first-line treatment for idiopathic severe aplastic anemia (SAA) patients lacking HLA-matched sibling donors (MSD). Our study aimed to compare the clinical outcomes of pediatric SAA patients who received UCBT and immunosuppressive therapy (IST) upfront. A retrospective analysis was performed on 43 consecutive patients who received frontline IST (n = 17) or UCBT (n = 26) between July 2017 and April 2022. The 3-year overall survival (OS) was comparable between the UCBT and IST groups (96.2% versus 100%, P = .419), while the 3-year event-free survival (EFS) was significantly better in the former than in the latter (88.5% versus 58.8%, P = .048). In the UCBT group, 24 patients achieved successful engraftment, 2 patients developed severe acute graft-versus-host disease (aGVHD), no extensive chronic GVHD (cGVHD), and a high GVHD-free, failure-free survival (GFFS) of 84.6% at 3 years. After 1 year of treatment, 12 patients in the IST group responded, while 5 patients did not achieve remission and 2 patients had disease relapse. At both 3 and 6 months after treatment, the proportion of transfusion-independent patients was higher in the UCBT group than in the IST group. Faster immune recovery and earlier transfusion independence further reduced the risk of infection and bleeding, thereby improving health-related quality of life in the UCBT-treated group. Our results suggested that UCBT as upfront therapy may be an effective and safe option for pediatric SAA patients, with favorable outcomes in experienced centers.
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Affiliation(s)
- Xuxu Zhao
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China; Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wenxiu Lv
- Department of Hematology and Oncology, Anhui Provincial Children's Hospital (Anhui Hospital, Pediatric Hospital of Fudan University), Hefei, Anhui, China; Department of Pediatrics, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Kaidi Song
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wen Yao
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Chun Li
- Department of Pediatrics, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Baolin Tang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Xiang Wan
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Liangquan Geng
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Guangyu Sun
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Ping Qiang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Huilan Liu
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China; Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Hongjun Liu
- Department of Hematology and Oncology, Anhui Provincial Children's Hospital (Anhui Hospital, Pediatric Hospital of Fudan University), Hefei, Anhui, China; Department of Pediatrics, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Zimin Sun
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China; Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
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Yoshida N. Recent advances in the diagnosis and treatment of pediatric acquired aplastic anemia. Int J Hematol 2024; 119:240-247. [PMID: 36867357 DOI: 10.1007/s12185-023-03564-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 03/04/2023]
Abstract
Acquired aplastic anemia (AA) in children is a rare bone marrow failure that requires several special considerations for its diagnosis and treatment compared with that in adults. The most common issue is the differential diagnosis with refractory cytopenia of childhood and inherited bone marrow failure syndromes, which is crucial for making decisions on the appropriate treatment for pediatric AA. In addition to detailed morphological evaluation, a comprehensive diagnostic work-up that includes genetic analysis using next-generation sequencing will play an increasingly important role in identifying the underlying etiology of pediatric AA. When discussing treatment strategies for children with acquired AA, the long-term sequelae and level of hematopoietic recovery that affect daily or school life should also be considered, although the overall survival rate has reached 90% after immunosuppressive therapy or hematopoietic cell transplantation (HCT). Recent advances in HCT for pediatric patients with acquired AA have been remarkable, with the successful use of upfront bone marrow transplantation from a matched unrelated donor, unrelated cord blood transplantation or haploidentical HCT as salvage treatment, and fludarabine/melphalan-based conditioning regimens. This review discusses current clinical practices in the diagnosis and treatment of acquired AA in children based on the latest data.
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Affiliation(s)
- Nao Yoshida
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Aichi Medical Center Nagoya First Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, Aichi, 453-8511, Japan.
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Wu Y, Tang BL, Song KD, Sun GY, Pan TZ, Huang AJ, Yan BB, Zhu XY. [Single non-blood-related umbilical cord blood transplantation using a reduced-intensity conditioning regimen for the treatment of severe aplastic anemia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2024; 45:68-73. [PMID: 38527841 PMCID: PMC10951129 DOI: 10.3760/cma.j.issn.0253-2727.121090-20230928-00146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Indexed: 03/27/2024]
Abstract
Objective: To evaluated the clinical efficacy of a reduced-intensity preconditioning regimen for single non-blood-related umbilical cord blood transplantation (sUCBT) in the treatment of severe aplastic anemia (SAA) . Methods: The clinical data of 63 patients with SAA who underwent sUCBT from January 2021 to July 2023 at the Department of Hematology of the First Affiliated Hospital of USTC were retrospectively analyzed. Fifty-two patients received total body irradiation/total bone marrow irradiation (TMI) combined with fludarabine or a cyclophosphamide- conditioning regimen (non-rATG group) , while 11 patients received rabbit anti-human thymocyte immunoglobulin (rATG) combined with TMI, fludarabine, or the cyclophosphamide-conditioning regimen (rATG group) . All patients received cyclosporine A and mycophenolate mofetil for graft-versus-host disease (GVHD) prophylaxis. Complications post-transplantation and long-term survival were compared between the two groups. Results: The baseline parameters were balanced between the two groups (P>0.05) . In the rATG group, all patients achieved stem cell engraftment, and in the non-rATG group, five patients had primary graft failure. There was no significant difference in the cumulative incidence of neutrophil engraftment at 42 days after transplantation or platelet engraftment at 60 days between the two groups. The incidence of grade Ⅱ-Ⅳ acute GVHD in the rATG group was significantly lower than in the non-rATG group (10.0% vs. 46.2% , P=0.032) , and the differences in the cumulative incidences of grade Ⅲ/Ⅳ acute GVHD and 1-year chronic GVHD were not statistically significant (P=0.367 and P=0.053, respectively) . There were no significant differences in the incidences of pre-engraftment syndrome, bacterial bloodstream infections, cytomegalovirus viremia, or hemorrhagic cystitis between the two groups (P>0.05 for all) . The median follow-up time for surviving patients was 536 (61-993) days, and the 1-year transplantation related mortality (TRM) of all patients after transplantation was 13.0% (95% CI 6.7% -24.3% ) . Among the patients in the non-rATG and rATG groups, 15.5% (95% CI 8.1% -28.6% ) and 0% (P=0.189) , respectively, had mutations. The 1-year overall survival (OS) rate of all patients after transplantation was 87.0% (95% CI 75.7% -93.3% ) . The 1-year OS rates in the rATG group and non-rATG group after transplantation were 100% and 84.5% , respectively (95% CI 71.4% -91.9% ) (P=0.198) . Conclusion: The preliminary results of sUCBT with a low-dose irradiation-based reduced-intensity conditioning regimen with fludarabine/cyclophosphamide for the treatment of patients with SAA showed good efficacy. Early application of low-dose rATG can reduce the incidence of acute GVHD after transplantation without increasing the risk of implantation failure or infection.
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Affiliation(s)
- Y Wu
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - B L Tang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - K D Song
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - G Y Sun
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - T Z Pan
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - A J Huang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - B B Yan
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - X Y Zhu
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China Anhui Provincial Key Laboratory of Blood Research and Applications, Hefei 230001, China Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
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Vissers LTW, van der Burg M, Lankester AC, Smiers FJW, Bartels M, Mohseny AB. Pediatric Bone Marrow Failure: A Broad Landscape in Need of Personalized Management. J Clin Med 2023; 12:7185. [PMID: 38002797 PMCID: PMC10672506 DOI: 10.3390/jcm12227185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023] Open
Abstract
Irreversible severe bone marrow failure (BMF) is a life-threatening condition in pediatric patients. Most important causes are inherited bone marrow failure syndromes (IBMFSs) and (pre)malignant diseases, such as myelodysplastic syndrome (MDS) and (idiopathic) aplastic anemia (AA). Timely treatment is essential to prevent infections and bleeding complications and increase overall survival (OS). Allogeneic hematopoietic stem cell transplantation (HSCT) provides a cure for most types of BMF but cannot restore non-hematological defects. When using a matched sibling donor (MSD) or a matched unrelated donor (MUD), the OS after HSCT ranges between 60 and 90%. Due to the introduction of post-transplantation cyclophosphamide (PT-Cy) to prevent graft versus host disease (GVHD), alternative donor HSCT can reach similar survival rates. Although HSCT can restore ineffective hematopoiesis, it is not always used as a first-line therapy due to the severe risks associated with HSCT. Therefore, depending on the underlying cause, other treatment options might be preferred. Finally, for IBMFSs with an identified genetic etiology, gene therapy might provide a novel treatment strategy as it could bypass certain limitations of HSCT. However, gene therapy for most IBMFSs is still in its infancy. This review summarizes current clinical practices for pediatric BMF, including HSCT as well as other disease-specific treatment options.
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Affiliation(s)
- Lotte T. W. Vissers
- Laboratory for Pediatric Immunology, Department of Pediatrics, Willem-Alexander Children’s Hospital, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (L.T.W.V.); (M.v.d.B.)
| | - Mirjam van der Burg
- Laboratory for Pediatric Immunology, Department of Pediatrics, Willem-Alexander Children’s Hospital, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (L.T.W.V.); (M.v.d.B.)
| | - Arjan C. Lankester
- Department of Pediatrics, Hematology and Stem Cell Transplantation, Willem-Alexander Children’s Hospital, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (A.C.L.); (F.J.W.S.)
| | - Frans J. W. Smiers
- Department of Pediatrics, Hematology and Stem Cell Transplantation, Willem-Alexander Children’s Hospital, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (A.C.L.); (F.J.W.S.)
| | - Marije Bartels
- Department of Pediatric Hematology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands;
| | - Alexander B. Mohseny
- Department of Pediatrics, Hematology and Stem Cell Transplantation, Willem-Alexander Children’s Hospital, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (A.C.L.); (F.J.W.S.)
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Lu Y, Xiong M, Sun RJ, Zhang JP, Zhao YL, Wei ZJ, Cao XY, Zhou JR, Liu DY, Lu DP. Comparisons of unmanipulated haploidentical donor, unrelated cord blood donor and matched unrelated donor hematopoietic stem cell transplantation in pediatric acquired severe aplastic anemia: a single center study. Leuk Lymphoma 2022; 63:3307-3316. [PMID: 36067518 DOI: 10.1080/10428194.2022.2118527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We retrospectively analyzed the outcomes of 240 pediatric SAA patients who underwent unmanipulated alternative HSCT between September 2012 and November 2020 at our center. The incidence of GF (PGF + SGF) was higher in the UCBD cohort compared to the MUD and HID cohorts [(13.5% ± 6.5%) vs (0%), and (1.6% ± 5.3%), respectively, p = .0001]. The incidence of platelet engraftment within 180 days post-HSCT was lower in the UCBD cohort (82.4% ± 2.3%) compared to the HID group (96.2% ± 1.3%) and the MUD group (97.4% ± 0.5%) (p = .020). the median duration time for platelet engraftment in the UCBD cohort was 29 days, longer than in HID cohort 14 days and the MUD cohort 13 days (p = .005). UCBD cohort had a lower 3-year failure-free survival (FFS) (70.5% ± 8.4%) compared to the HID cohort (81.1% ± 4.3%) and the MUD cohort (92.5% ± 3.1%) (p = .030) and lower 3-year GVHD/relapse free survival (GRFS) (63.3% ± 9.5.4%) compared to the HID cohort (75.5% ± 6.8%) and MUD cohort (87.9% ± 4.5%) (p = .002). UCBD-HSCT had inferior FFS and GRFS compared to an HSCT with an HID or MUD in pediatric patients with acquired SAA. A UCBD-HSCT had a higher GF and lower incidence of platelet engraftment and longer platelet engraftment time.
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Affiliation(s)
- Yue Lu
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Min Xiong
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Rui-Juan Sun
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Jian-Ping Zhang
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Yan-Li Zhao
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Zhi-Jie Wei
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Xing-Yu Cao
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Jia-Rui Zhou
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - De-Yan Liu
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Dao-Pei Lu
- Department of Bone Marrow Transplantation, Hebei Yanda Lu Daopei Hospital, Langfang, China
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Li B, Meng L, Tian Y, Lu Q, Gao L, Xiao P, Lu J, Li J, Wan L, Li Z, Hu S, Kong L. Outcomes and risk factors of hemorrhagic cystitis in pediatric allogeneic hematopoietic stem cell transplantation recipients using different graft source and condition with severe aplastic anemia. Hematology 2022; 27:714-722. [PMID: 35688452 DOI: 10.1080/16078454.2022.2078538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Hemorrhagic cystitis (HC) is a severe complication of allo-HSCT, characterized by irritative symptoms of the urinary tract and a higher morbidity rate. The risk factors and prognosis of HC are still unclear. OBJECTIVE The objective of this study is to identify risk factors and outcomes to improve treatment in pediatric SAA patients undergoing HSCTs in the Children's Hospital of Soochow University. METHODS A total of 97 SAA patients as a cohort were enrolled from 2010 to 2019 in the Children's Hospital of Soochow University and a number of factors related to HC and outcomes were analysed. In all transplants (except UCBT), patients received a combination of G-CSF stimulated bone marrow (BM) and peripheral blood stem cell (PBSC). The minimum number of CD34 + cells is 5 × 106 cells/kg. RESULTS Mononuclear cells dose (MNC, cut off: 8.53 × 108/kg) and grade II-IV acute graft versus host disease (aGVHD) were identified as independent risk factors for HC. Patients without HC had better overall survival (OS) than with HC (No HC: 98.6%±1.4% vs HC: 87.4% ± 6.8%, p = 0.03). CONCLUSION We concluded that aGVHD and MNC dose in graft might play an important role in the development of HC in pediatric SAA patients undergoing allo-HSCT. HC is also a key complication affecting the prognosis of children with SAA after allo-HSCT.
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Affiliation(s)
- Bohan Li
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Lijun Meng
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Yuanyuan Tian
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Qin Lu
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Li Gao
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Peifang Xiao
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Jun Lu
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Jie Li
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Lin Wan
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Zhiheng Li
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Shaoyan Hu
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Lingjun Kong
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, People's Republic of China.,Children's Hospital of Wujiang District, Suzhou, People's Republic of China
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Hiramoto N, Yamazaki H, Nakamura Y, Uchida N, Murata M, Kondo T, Yoshioka S, Eto T, Nishikawa A, Kimura T, Ichinohe T, Atsuta Y, Onishi Y, Suzuki R, Mori T. Total body irradiation-containing conditioning regimens without antithymocyte globulin in adults with aplastic anemia undergoing umbilical cord blood transplantation. Ann Hematol 2021; 101:165-175. [PMID: 34546409 DOI: 10.1007/s00277-021-04664-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/12/2021] [Indexed: 10/20/2022]
Abstract
Thus far, there have been no large cohort studies on total body irradiation (TBI)-containing conditioning regimens without antithymocyte globulin (ATG) in adults with aplastic anemia (AA) undergoing umbilical cord blood (UCB) transplantation (UCBT). We retrospectively analyzed 115 adults with idiopathic AA undergoing UCBT using TBI-containing reduced-intensity conditioning (RIC) regimens without ATG between 2000 and 2018 on behalf of the Adult Aplastic Anemia Working Group of the Japanese Society for Hematopoietic Cell Transplantation. We then compared transplantation outcomes between a fludarabine (Flu)- and melphalan (Mel)-based regimen (FM) and a Flu- and cyclophosphamide (Cy)-based regimen (FC). The median patient age at UCBT was 41 years. The median total nucleated cell and total CD34+ cell doses in a UCB unit at cryopreservation were 2.5 × 107/kg and 0.7 × 105/kg, respectively. The median follow-up period for survivors was 47 months. The cumulative incidence rate of neutrophil engraftment was 76.5%, and the 4-year overall survival (OS) rate was 64.3%. In multivariate analysis, the covariates that were significantly associated with a higher neutrophil engraftment were total CD34+ cell dose in an UCB unit (≥ 0.7 × 105/kg; hazard ratio, 0.57, P = 0.01) and total dose of TBI (4 Gy of TBI; hazard ratio, 0.32, P = 0.01). There was no significant difference in the cumulative incidence of neutrophil engraftment and the 4-year OS between the FM and FC groups. In conclusion, TBI-containing RIC regimens without ATG are suitable for adults with AA undergoing UCBT. There were no significant differences in transplantation outcomes between the FM and FC groups.
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Affiliation(s)
- Nobuhiro Hiramoto
- Department of Hematology, Kobe City Medical Center General Hospital, 2-2-1, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan.
| | - Hirohito Yamazaki
- Division of Transfusion Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - Yukinori Nakamura
- Third Department of Internal Medicine, Yamaguchi University School of Medicine, Ube, Japan
| | - Naoyuki Uchida
- Department of Hematology, Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital, Tokyo, Japan
| | - Makoto Murata
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tadakazu Kondo
- Department of Hematology and Oncology, Kyoto University Hospital, Kyoto, Japan
| | - Satoshi Yoshioka
- Department of Hematology, Kobe City Medical Center General Hospital, 2-2-1, Minatojima-Minamimachi, Chuo-ku, Kobe, 650-0047, Japan
| | - Tetsuya Eto
- Department of Hematology, Hamanomachi Hospital, Fukuoka, Japan
| | - Akinori Nishikawa
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama, 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
| | - Yasushi Onishi
- Department of Hematology and Rheumatology, Tohoku University Hospital, Miyagi, Japan
| | - Ritsuro Suzuki
- Department of Oncology and Hematology, Shimane University Hospital, Izumo, Japan
| | - Takehiko Mori
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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First-Line Unrelated Double-Unit Umbilical Cord Blood Transplantation for Acquired Severe Aplastic Anemia. Transplant Proc 2021; 53:2390-2396. [PMID: 34417029 DOI: 10.1016/j.transproceed.2021.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 06/22/2021] [Accepted: 07/20/2021] [Indexed: 11/20/2022]
Abstract
We analyzed the outcomes of 14 patients with severe aplastic anemia (SAA) who received first-line double-unit cord blood transplantation (dUCBT). Patients' median age was 24.5 years (range, 10-44 years). The median numbers of infused nucleated and CD34+ cells were 5.48 × 107/kg (range, 3.33-7.96 × 107/kg) and 2.30 × 105/kg (range, 0.86-3.97 × 105/kg), respectively. One patient died 5 days after transplantation. Three of the 13 patients acquired autologous myeloid recovery. Neutrophil engraftment was observed in 10 patients (76.29%), and the median time of neutrophil recovery was 19 days (range, 15-40 days). Platelet engraftment was observed in 7 cases (53.8%), and 3 patients experienced platelet graft failure. The median time of platelet recovery was 32 days (range, 22-80 days). The cumulative incidence of grade II-IV acute graft-vs-host disease (GVHD) was 38.5%. One patient demonstrated mild chronic GVHD. After a median follow-up of 61 months (range, 18-102 months), 6 patients were alive. The predicted 5-year overall survival and GVHD-free, failure-free survival rates were 42.9% ± 13.2% and 14.3% ± 9.4%, respectively. The first-line dUCBT for SAA is still primarily evaluated through multicenter prospective clinical trials by an optimal conditioning regimen, cell dose, and other graft and transplantation-related factors.
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Yoo KH. Strategies to enhance graft performance in cord blood transplantation. PRECISION AND FUTURE MEDICINE 2021. [DOI: 10.23838/pfm.2020.00149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Conditioning regimen for allogeneic bone marrow transplantation in children with acquired bone marrow failure: fludarabine/melphalan vs. fludarabine/cyclophosphamide. Bone Marrow Transplant 2020; 55:1272-1281. [PMID: 32444864 DOI: 10.1038/s41409-020-0948-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 05/01/2020] [Accepted: 05/05/2020] [Indexed: 11/08/2022]
Abstract
Fludarabine/cyclophosphamide-based conditioning regimens are standard in bone marrow transplantation (BMT) for acquired bone marrow failure in children, however, graft failure may occur. Using the data from a nationwide transplantation registry, we compared the outcomes of children aged <16 years with acquired aplastic anemia and refractory cytopenia of childhood who underwent allogeneic BMT with either fludarabine/melphalan (n = 71) or fludarabine/cyclophosphamide (n = 296) between 2000 and 2016. The fludarabine/melphalan regimen provided excellent outcomes, with 3-year overall survival and failure-free survival rates of 98% and 97%, respectively. The 83% 3-year failure-free survival in the fludarabine/cyclophosphamide group was significantly inferior (P = 0.002), whereas the overall survival did not differ between the two groups. Late graft failure was the most common cause of treatment failure in the fludarabine/cyclophosphamide group, which experienced a significantly higher incidence of late graft failure than the fludarabine/melphalan group (11% vs. 3%; P = 0.035). Multivariate analyses showed that the fludarabine/melphalan regimen was associated with a better failure-free survival (hazard ratio [HR] 0.12; P = 0.005) and lower risk of late graft failure (HR 0.16; P = 0.037). Fludarabine/melphalan-based conditioning regimen can be a promising option for children with acquired bone marrow failure receiving BMT.
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Qin BZ, Zhang C, Zhang R, Wang L. Role of antithymocyte globulin in patients with hematologic diseases undergoing umbilical cord blood transplantation: A systematic review and meta-analysis. Clin Transplant 2020; 34:e13876. [PMID: 32277839 DOI: 10.1111/ctr.13876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 03/23/2020] [Accepted: 04/01/2020] [Indexed: 02/07/2023]
Abstract
The role of antithymocyte globulin (ATG) in patients with hematologic diseases undergoing umbilical cord blood transplantation (UCBT) remains controversial. This systematic review and meta-analysis was conducted to comprehensively evaluate this issue. PubMed, Embase, and the Cochrane Library were systematically searched. Clinical studies reporting the impact of ATG- vs non-ATG-containing conditioning regimens on transplantation outcomes were identified. Twenty-five studies were included. ATG significantly prevented grade II-IV and grade III-IV acute graft-vs-host disease (GVHD) (11 studies, 5020 patients, HR: 0.49, 95% CI: 0.42-0.56, P < .001; 5 studies, 5490 patients, HR: 0.60, 95% CI: 0.46-0.80, P < .001) but not chronic GVHD (8 studies, 5952 patients, HR: 0.78, 95% CI: 0.51-1.20, P = .266). However, use of ATG was associated with increased transplantation-related mortality and inferior overall survival (9 studies, 4244 patients, HR: 1.79, 95% CI: 1.38-2.33, P < .001; 8 studies, 5438 patients, HR: 1.96, 95% CI: 1.56-2.46, P < .001). Our study did not recommend routine use of ATG in UCBT. Individualizing the ATG timing and dose based on patient characteristics to retain the prophylactic effects of ATG on GVHD without compromising the survival of UCBT recipients may be reasonable.
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Affiliation(s)
- Bao-Zhen Qin
- Department of Hematology, Peking University ShenZhen Hospital, ShenZhen, China
| | - Chao Zhang
- Department of Hematology and Oncology, LaoShan Medical District of No. 971 Hospital of Chinese People's Liberation Army (PLA) Navy, Qingdao, China
| | - Rui Zhang
- Rocket Force Characteristic Medical Center, PLA Rocket Army General Hospital, Beijing, China
| | - Li Wang
- Department of Hematology, Peking University ShenZhen Hospital, ShenZhen, China.,Department of Hematology and Oncology, LaoShan Medical District of No. 971 Hospital of Chinese People's Liberation Army (PLA) Navy, Qingdao, China
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Du S, He W, Yang Y, Gao X, Ding J. Unrelated cord blood transplantation for severe aplastic anemia using intensified immunoablative conditioning regimen leading to high engraftment and survival. Bone Marrow Transplant 2019; 55:1677-1680. [PMID: 31664183 DOI: 10.1038/s41409-019-0736-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Shengnan Du
- Medical School of Southeast University, Nanjing, China
| | - Wenduo He
- Department of Hematology, ZhongDa Hospital Southeast University, Nanjing, China
| | - Yilian Yang
- Medical School of Southeast University, Nanjing, China
| | - Xingchen Gao
- Medical School of Southeast University, Nanjing, China
| | - Jiahua Ding
- Medical School of Southeast University, Nanjing, China. .,Department of Hematology, ZhongDa Hospital Southeast University, Nanjing, China.
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Severe aplastic anemia: allogeneic bone marrow transplantation as first-line treatment. Blood Adv 2019; 2:2020-2028. [PMID: 30108110 DOI: 10.1182/bloodadvances.2018021162] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 07/21/2018] [Indexed: 12/20/2022] Open
Abstract
Treatment of severe aplastic anemia has improved significantly over the past 4 decades. This review will summarize the key areas of progress in the use of allogeneic hematopoietic cell transplantation and nontransplant immunosuppressive therapy (IST) for the treatment of aplastic anemia and then summarize the recommendations for first-line treatment. Based on recent data, we argue that guidelines for the initial treatment of patients with newly diagnosed severe aplastic anemia require revision. At the time of diagnosis, before beginning treatment, HLA typing should be done to identify a marrow donor among family members or in the unrelated donor registries, and a marrow transplant should be considered first-line therapy. The priority order of donor source for bone marrow transplantation is: (1) HLA-identical sibling, (2) HLA-matched unrelated donor, and (3) HLA-haploidentical donor if an HLA-matched unrelated donor is not rapidly available. Each of these donor marrow sources may be preferable to nontransplant IST. We make this recommendation because of the long-term persistent risk for disease relapse and secondary myelodysplastic syndrome or acute myeloid leukemia with the use of nontransplant IST for patients with aplastic anemia. In contrast, marrow transplantation is associated with high cure rates of aplastic anemia and a relatively low risk for graft-versus-host disease, with many patients now living for decades without the risk for disease recurrence or the development of clonal disorders. Implementation of this first-line treatment strategy will provide patients with severe aplastic anemia the best chance of long-term disease-free survival.
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Ochi T, Onishi Y, Nasu K, Onodera K, Kobayashi M, Ichikawa S, Fujiwara T, Fukuhara N, Yamada-Fujiwara M, Harigae H. Umbilical Cord Blood Transplantation Using Reduced-Intensity Conditioning without Antithymocyte Globulin in Adult Patients with Severe Aplastic Anemia. Biol Blood Marrow Transplant 2019; 25:e55-e59. [DOI: 10.1016/j.bbmt.2018.09.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 09/27/2018] [Indexed: 01/06/2023]
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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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