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Dybko J, Sobczyk-Kruszelnicka M, Sadowska-Klasa A, Piekarska A, Makuch S, Agrawal S, Dudek K, Giordano U, Giebel S, Gil L. Optimizing Outcomes in Mismatched Unrelated Donor Allogeneic Transplantation: Post-Transplant Cyclophosphamide's Dual Impact on Graft versus Host Disease Incidence and Overall Survival: Retrospective Analysis on Behalf of Polish Adult Leukemia Group. J Clin Med 2024; 13:3569. [PMID: 38930096 PMCID: PMC11204542 DOI: 10.3390/jcm13123569] [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: 04/23/2024] [Revised: 06/12/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
Allogeneic hematopoietic cell transplantation (allo-HSCT) stands as an effective treatment method for various hematologic malignancies. However, graft-versus-host disease (GvHD), an intricate immunological phenomenon where donor immune cells target recipient tissues, remains a significant challenge, particularly in mismatched unrelated donors (MMUD). Post-transplant cyclophosphamide (PTCy) has emerged as a promising immunosuppressive strategy, revolutionizing haploidentical transplantation and demonstrating promise in MMUD settings. Background/Objectives: This study aimed to evaluate the impact of PTCy on MMUD allo-HSCT outcomes, specifically its effects on GvHD incidence and overall survival, compared to anthitymocyte globulin (ATG). Methods: One hundred seventy-four patients were classified into three groups based on the type of transplantation: PTCy-haplo (114/174; 65.5%), PTCy-MMUD (23/174; 13.2%), and ATG-MMUD (37/174; 21.2%). Results: Our findings showed that PTCy-MMUD significantly reduced acute GvHD occurrence compared to PTCy-haplo and ATG-MMUD approaches (p = 0.006). The delayed onset of acute GvHD in the PTCy-MMUD group suggests a more controlled immune reconstitution, contributing to the lower incidence. Importantly, PTCy-MMUD exhibited enhanced five-year overall survival rates, aligning with the notion that reduced GvHD correlates with improved patient outcomes (p = 0.032). Conclusions: We believe that this study contributes valuable insights into PTCy-MMUD's management, underscoring its potential to significantly reduce GvHD incidence and enhance survival outcomes. Although further investigations and clinical trials are warranted, this research underscores the promising role of PTCy-based GvHD prophylaxis in improving MMUD allo-HCT success.
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Affiliation(s)
- Jarosław Dybko
- Department of Hematology and Cellular Transplantation, Lower Silesian Oncology Center, 53-413 Wroclaw, Poland
- Department of Oncology and Hematology, Faculty of Medicine, Wroclaw University of Science and Technology, 58-376 Wroclaw, Poland
| | - Małgorzata Sobczyk-Kruszelnicka
- Department of Bone Marrow Transplantation and Oncohematology, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland; (M.S.-K.); (S.G.)
| | - Alicja Sadowska-Klasa
- Department of Hematology and Transplantology, Medical University of Gdansk, 80-210 Gdansk, Poland; (A.S.-K.); (A.P.)
| | - Agnieszka Piekarska
- Department of Hematology and Transplantology, Medical University of Gdansk, 80-210 Gdansk, Poland; (A.S.-K.); (A.P.)
| | - Sebastian Makuch
- Department of Clinical and Experimental Pathology, Wroclaw Medical University, 50-368 Wroclaw, Poland;
| | - Siddarth Agrawal
- Department and Clinic of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Krzysztof Dudek
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland;
| | - Ugo Giordano
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, 50-367 Wroclaw, Poland;
| | - Sebastian Giebel
- Department of Bone Marrow Transplantation and Oncohematology, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland; (M.S.-K.); (S.G.)
| | - Lidia Gil
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, 60-569 Poznan, Poland;
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Strzelec A, Gawlik-Rzemieniewska N, Klima A, Panek K, Helbig G. The Impact of Cryopreservation on Hematopoietic Stem Cell Engraftment and Post-transplant Outcome During the COVID-19 Pandemic. In Vivo 2024; 38:1271-1277. [PMID: 38688614 PMCID: PMC11059856 DOI: 10.21873/invivo.13565] [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: 01/19/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND/AIM The COVID-19 pandemic has had a significant impact on the current management of allotransplanted patients in whom fresh hematopoietic stem cells (HSCs) were replaced by cryopreserved ones. The aim of the study was to determine the efficacy and safety of cryopreserved HSCs when compared with the fresh ones. PATIENTS AND METHODS A retrospective analysis of 254 allogeneic stem cell transplantations (HSCT) procedures performed between 2020-2021 included the following donors: matched related (MRD; n=68), matched unrelated (MUD; n=148) and haploidentical (HID; n=38). 50% of patients (non-cryo group) received fresh grafts, whereas the remaining patients (cryo group) were transplanted with cryopreserved cells. RESULTS No differences in terms of median days to neutrophil [MRD/MUD/HID cryo- and non-cryo groups: 17 vs. 16 (p=0.27), 19 vs. 18 (p=0.83), 22 vs. 22 (p=0.83) days, respectively] and platelet [MRD/MUD/HID cryo- and non-cryo groups: 14 vs. 14 (p=0.25), 17 vs. 17 (p=0.33), 21 vs. 19 (p=0.36) days, respectively] engraftments were demonstrated. Among MUD graft recipients, platelet engraftment rates were 81% in the cryo- and 96% in the non-cryo group (p=0.01). OS rates were comparable at 1 year after HSCT between MRD/MUD/HID cryo- and non-cryo groups: 53% vs. 60% (p=0.54), 60% vs. 66% (p=0.5), 50% vs. 41% (p=0.56), respectively. CONCLUSION During the COVID-19 pandemic, cryopreserved HSCs did not have a negative impact on median engraftment time and OS when compared to fresh HSCs. In the MUD group, platelet engraftment rate was lower in cryopreserved HSC recipients.
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Affiliation(s)
- Anna Strzelec
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Natalia Gawlik-Rzemieniewska
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Anna Klima
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Karolina Panek
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Grzegorz Helbig
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
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3
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Morita-Fujita M, Shindo T, Iemura T, Arai Y, Kanda J, Okada K, Ueda Y, Yoshiyuki O, Anzai N, Mori T, Ishikawa T, Otsuka Y, Yonezawa A, Yuhi N, Imada K, Oba A, Itoh M, Okamoto Y, Kitano T, Ikeda T, Kotani S, Akasaka T, Yago K, Watanabe M, Nohgawa M, Tsuji M, Takeoka T, Yamamoto R, Arima N, Yoshinaga N, Hishizawa M, Yamashita K, Kondo T, Takaori-Kondo A. Epitope mismatch at HLA-DRB1 associates with reduced relapse risk in cord blood transplant for standard-risk hematological malignancy. Transplant Cell Ther 2023:S2666-6367(23)01136-3. [PMID: 36889508 DOI: 10.1016/j.jtct.2023.03.002] [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: 11/23/2022] [Revised: 03/01/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023]
Abstract
BACKGROUND Cord blood transplantation (CBT) is an attractive therapeutic option for patients with hematological malignancies. CBT tolerates HLA mismatches between donors and recipients, but which HLA mismatches generate graft-versus-tumor (GVT) effects is unknown. OBJECTIVE Given that HLA molecules contain epitopes comprising polymorphic amino acids that determine their immunogenicity, we investigated associations between epitope-level HLA mismatches and relapse following single-unit CBT. STUDY DESIGN A total of 492 patients with hematological malignancies who received single unit, T cell replete CBT were included in this multi-center retrospective study. HLA epitope mismatches (EM) were quantified using HLA matchmaker software from donor and patient HLA-A, B, C and DRB1 allele data. Patients were dichotomized by median EM value and divided into groups transplanted in complete/partial remission (standard stage: 62.4%) and others (advanced stage: 37.6%). RESULTS Median EM numbers in the graft-versus-host direction (GVH-EM) at HLA-class I and HLA-DRB1 were 3 (range, 0-16) and 1 (range, 0-7), respectively. Higher HLA-class I GVH-EM increased non-relapse mortality (NRM) in the advanced stage group (adjusted hazard ratio [HR], 2.12; p=0.021), with no significant advantage for relapse in either stage. On the other hand, higher HLA-DRB1 GVH-EM was associated with better disease-free survival in the standard stage group (adjusted HR, 0.63; p=0.020), which was attributed to lower relapse risk (adjusted HR, 0.46; p=0.014). These associations were also observed even within HLA-DRB1 allele-mismatched transplants in the standard stage group, indicating that EM might have impacts on relapse risk independently of allele mismatch. High HLA-DRB1 GVH-EM did not increase NRM in either stage. CONCLUSIONS High HLA-DRB1 GVH-EM may lead to potent GVT effects and favorable prognosis following CBT especially in the patients transplanted in the standard stage. This approach may facilitate appropriate unit selection and improve the overall prognosis of patients with hematological malignancies who receive CBT.
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Affiliation(s)
- Mari Morita-Fujita
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takero Shindo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Tomoki Iemura
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yasuyuki Arai
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Clinical Laboratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junya Kanda
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kazuya Okada
- Department of Hematology, Kurashiki Central Hospital, Okayama, Japan
| | - Yasunori Ueda
- Department of Hematology, Kurashiki Central Hospital, Okayama, Japan
| | - Onda Yoshiyuki
- Department of Hematology, Takatsuki Red Cross Hospital, Takatsuki, Japan
| | - Naoyuki Anzai
- Department of Hematology, Takatsuki Red Cross Hospital, Takatsuki, Japan
| | - Takuto Mori
- Department of Hematology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Takayuki Ishikawa
- Department of Hematology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Yasuyuki Otsuka
- Department of Hematology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Akihito Yonezawa
- Department of Hematology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Naoki Yuhi
- Department of Hematology, Osaka Red Cross Hospital, Osaka, Japan
| | - Kazunori Imada
- Department of Hematology, Osaka Red Cross Hospital, Osaka, Japan
| | - Akifumi Oba
- Department of Hematology, Kyoto City Hospital, Kyoto, Japan
| | - Mitsuru Itoh
- Department of Hematology, Kyoto City Hospital, Kyoto, Japan
| | | | | | - Takashi Ikeda
- Division of Hematology and Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | | | | | - Kazuhiro Yago
- Department of Hematology, Shizuoka General Hospital, Shizuoka, Japan
| | - Mitsumasa Watanabe
- Department of Hematology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Masaharu Nohgawa
- Department of Hematology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Masaaki Tsuji
- Department of Hematology and Immunology, Japanese Red Cross Otsu Hospital, Otsu, Japan
| | - Tomoharu Takeoka
- Department of Hematology and Immunology, Japanese Red Cross Otsu Hospital, Otsu, Japan
| | - Ryusuke Yamamoto
- Department of Hematology, Kobe City Medical Center General Hospital, Hyogo, Japan; Department of Hematology, Shinko Hospital, Kobe, Japan
| | | | - Noriyoshi Yoshinaga
- Department of Hematology, Kyoto-Katsura Hospital, Kyoto, Japan; Department of Hematology/Oncology, Shiga General Hospital, Moriyama, Japan
| | | | - Kouhei Yamashita
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tadakazu Kondo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Hematology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Akifumi Takaori-Kondo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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4
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How I prevent GVHD in high-risk patients: posttransplant cyclophosphamide and beyond. Blood 2023; 141:49-59. [PMID: 35405017 DOI: 10.1182/blood.2021015129] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/09/2022] [Accepted: 03/21/2022] [Indexed: 01/10/2023] Open
Abstract
Advances in conditioning, graft-versus-host disease (GVHD) prophylaxis and antimicrobial prophylaxis have improved the safety of allogeneic hematopoietic cell transplantation (HCT), leading to a substantial increase in the number of patients transplanted each year. This influx of patients along with progress in remission-inducing and posttransplant maintenance strategies for hematologic malignancies has led to new GVHD risk factors and high-risk groups: HLA-mismatched related (haplo) and unrelated (MMUD) donors; older recipient age; posttransplant maintenance; prior checkpoint inhibitor and autologous HCT exposure; and patients with benign hematologic disorders. Along with the changing transplant population, the field of HCT has dramatically shifted in the past decade because of the widespread adoption of posttransplantation cyclophosphamide (PTCy), which has increased the use of HLA-mismatched related donors to levels comparable to HLA-matched related donors. Its success has led investigators to explore PTCy's utility for HLA-matched HCT, where we predict it will be embraced as well. Additionally, combinations of promising new agents for GVHD prophylaxis such as abatacept and JAK inhibitors with PTCy inspire hope for an even safer transplant platform. Using 3 illustrative cases, we review our current approach to transplantation of patients at high risk of GVHD using our modern armamentarium.
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Iwasaki M, Kanda J, Tanaka H, Shindo T, Sato T, Doki N, Fukuda T, Ozawa Y, Eto T, Uchida N, Katayama Y, Kataoka K, Ara T, Ota S, Onizuka M, Kanda Y, Ichinohe T, Atsuta Y, Morishima S. Impact of HLA Epitope Matching on Outcomes After Unrelated Bone Marrow Transplantation. Front Immunol 2022; 13:811733. [PMID: 35309307 PMCID: PMC8928463 DOI: 10.3389/fimmu.2022.811733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/14/2022] [Indexed: 11/26/2022] Open
Abstract
The significance of antibody-identified epitopes stimulating humoral alloimmunity is not well understood in the identification of non-permissive human leukocyte antigen (HLA) mismatching patterns in hematopoietic stem cell transplantation (HSCT). This was a retrospective study in a cohort of 9,991 patients who underwent their first HSCT for hematologic malignancies from unrelated bone marrow donors in the Transplant Registry Unified Management Program (TRUMP). HLA eplet mismatches (EMM) were quantified using HLAMatchmaker (HLAMM). The median age of patients was 48 years (range, 16 to 77). The number of EMM in recipient-donor pairs in our study population ranged from 0 to 37 in HLA class I (median, 0) and 0 to 60 in HLA class II (median, 1). In addition to the known high-risk mismatch patterns in the Japanese cohort, HLA-C EMM in the GVH direction was associated with a significantly higher risk for grade III-IV aGVHD, leading to a higher risk of non-relapse mortality and lower overall survival (compared with HLA-C matched patients, HR 1.67, 95% CI 1.44–1.95; HR 1.39, 95% CI 1.25–1.54; HR 1.20, 95% CI 1.10–1.30, respectively). HLAMM-based epitope matching might be useful for identifying patients who are at high risk for serious complications after HSCT from HLA mismatched unrelated donors.
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Affiliation(s)
- Makoto Iwasaki
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junya Kanda
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Takero Shindo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takahiko Sato
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Noriko Doki
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Takahiro Fukuda
- Department of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
| | - Yukiyasu Ozawa
- Department of Hematology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, Nagoya, Japan
| | - Tetsuya Eto
- Department of Hematology, Hamanomachi Hospital, Fukuoka, Japan
| | - Naoyuki Uchida
- Department of Hematology, Federation of National Public Service Personnel Mutual Aid Associations, Toranomon Hospital, Tokyo, Japan
| | - Yuta Katayama
- Department of Hematology, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Keisuke Kataoka
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takahide Ara
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Makoto Onizuka
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Yoshinobu Kanda
- Division of Hematology, Jichi Medical University, Tochigi, 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.,Department of Registry Science for Transplant and Cellular Therapy, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Satoko Morishima
- Division of Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology (Second Department of Internal Medicine), Graduate School of Medicine, University of the Ryukyus, Nishihara, Japan
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Grubic Z, Burek Kamenaric M, Maskalan M, Durakovic N, Vrhovac R, Stingl Jankovic K, Serventi Seiwerth R, Zunec R. Various approaches for accessing the influence of human leukocyte antigens disparity in haploidentical stem cell transplantation. Int J Lab Hematol 2022; 44:547-557. [DOI: 10.1111/ijlh.13801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/05/2022] [Accepted: 01/14/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Zorana Grubic
- Tissue Typing Centre Clinical Department for Transfusion Medicine and Transplantation Biology University Hospital Centre Zagreb Zagreb Croatia
| | - Marija Burek Kamenaric
- Tissue Typing Centre Clinical Department for Transfusion Medicine and Transplantation Biology University Hospital Centre Zagreb Zagreb Croatia
| | - Marija Maskalan
- Tissue Typing Centre Clinical Department for Transfusion Medicine and Transplantation Biology University Hospital Centre Zagreb Zagreb Croatia
| | - Nadira Durakovic
- Department of Hematology Internal Clinic University Hospital Centre Zagreb Zagreb Croatia
| | - Radovan Vrhovac
- Department of Hematology Internal Clinic University Hospital Centre Zagreb Zagreb Croatia
| | - Katarina Stingl Jankovic
- Tissue Typing Centre Clinical Department for Transfusion Medicine and Transplantation Biology University Hospital Centre Zagreb Zagreb Croatia
| | | | - Renata Zunec
- Tissue Typing Centre Clinical Department for Transfusion Medicine and Transplantation Biology University Hospital Centre Zagreb Zagreb Croatia
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7
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Zou J, Wang T, He M, Bolon YT, Gadalla SM, Marsh SG, Kuxhausen M, Gale RP, Sharma A, Assal A, Prestidge T, Aljurf M, Cerny J, Paczesny S, Spellman SR, Lee SJ, Ciurea SO. Number of HLA-Mismatched Eplets Is Not Associated with Major Outcomes in Haploidentical Transplantation with Post-Transplantation Cyclophosphamide: A Center for International Blood and Marrow Transplant Research Study. Transplant Cell Ther 2022; 28:107.e1-107.e8. [PMID: 34774819 PMCID: PMC8848305 DOI: 10.1016/j.jtct.2021.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/15/2021] [Accepted: 11/03/2021] [Indexed: 02/03/2023]
Abstract
The number of haploidentical hematopoietic stem cell transplantations (haplo-HSCT) performed has increased substantially in recent years. Previous single-center studies using in silico algorithms to quantitively measure HLA disparity have shown an association of the number of HLA molecular mismatches with relapse protection and/or increased risk of acute graft-versus-host disease (GVHD) in haplo-HSCT. However, inconsistent results from small studies have made it difficult to understand the full clinical impact of molecular mismatch in haplo-HSCT. In this study, we investigated the potential of the HLA class I and II mismatched eplet (ME) score measured by HLAMatchmaker, as well as ME load at a specific locus to predict outcomes in a registry-based cohort of haplo-HSCT recipients. We analyzed data from 1287 patients who underwent their first haplo-HSCT for acute lymphoblastic leukemia, acute myelogenous leukemia, or myelodysplastic syndrome between 2013 and 2017, as entered in the Center for International Blood and Marrow Transplant Research database. ME load at each HLA locus and total class I and II were scored using the HLAMatchmaker module incorporated in HLA Fusion software v4.3, which identifies predicted eplets based on the crystalized HLA molecule models and identifies ME by comparing donor and recipient eplets. In the study cohort, ME scores derived from total HLA class I or class II loci or individual HLA loci were not associated with overall survival, disease-free survival, nonrelapse mortality, relapse, acute GVHD, or chronic GVHD (P < .01). An unexpected strong association was identified between total class II ME load in the GVH direction and slower neutrophil engraftment (hazard ratio [HR], 0.82; 95% confidence interval [CI], 0.75 to 0.91; P < .0001) and platelet engraftment (HR, 0.80; 95% CI, 0.72 to 0.88; P < .0001). This was likely attributable to ME load at the HLA-DRB1 locus, which was similarly associated with slower neutrophil engraftment (HR, 0.82; 95% CI, 0.73 to 0.92; P = .001) and slower platelet engraftment (HR, 0.76; 95% CI, 0.70 to 0.84; P < .0001). Additional analyses suggested that this effect is attributable to a match versus a mismatch in the graft-versus-host direction and not to ME load, as a dose effect was not identified. These findings contradict those of previous relatively small studies reporting an association between ME load, as quantified by HLAMatchmaker, and haplo-HSCT outcomes. This study failed to demonstrate the predictive value of ME from HLA molecules for major clinical outcomes, and other molecular mismatch algorithms in haplo-HSCT settings should be tested.
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Affiliation(s)
- Jun Zou
- Division of Pathology/Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA,Correspondence and reprint requests: Jun Zou, MD, Department of Laboratory Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030 (J. Zou)
| | - Tao Wang
- Division of Biostatistics, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, Wisconsin, USA,Center for International Blood and Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Meilun He
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, Minnesota, USA
| | - Yung-Tsi Bolon
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, Minnesota, USA
| | - Shahinaz M. Gadalla
- Division of Cancer Epidemiology & Genetics, NIH-NCI Clinical Genetics Branch, Rockville, Maryland, USA
| | - Steven G.E. Marsh
- Anthony Nolan Research Institute, London, United Kingdom,University College London Cancer Institute, University College London, London, United Kingdom
| | - Michelle Kuxhausen
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, Minnesota, USA
| | - Robert Peter Gale
- Haematology Research Centre, Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Akshay Sharma
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Amer Assal
- Columbia University Irving Medical Center, Department of Medicine, Bone Marrow Transplant and Cell Therapy Program, New York, USA
| | - Tim Prestidge
- Blood and Cancer Centre, Starship Children’s Hospital, Auckland, New Zealand
| | - Mahmoud Aljurf
- Department of Oncology, King Faisal Specialist Hospital Center & Research, Riyadh, Saudi Arabia
| | - Jan Cerny
- Division of Hematology/Oncology, Department of Medicine, University of Massachusetts Medical Center, Worcester, Massachusetts, USA
| | - Sophie Paczesny
- Medical University of South Carolina, Department of Microbiology and Immunology, Charleston, South Carolina, USA
| | - Stephen R. Spellman
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, Minnesota, USA
| | - Stephanie J. Lee
- Center for International Blood and Marrow Transplant Research, Medical College of Wisconsin, Milwaukee, Wisconsin, USA,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Stefan O. Ciurea
- Hematopoietic Stem Cell Transplantation and Cellular Therapy Program, University of California, Irvine, Orange, California, USA
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8
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Geffard E, Boussamet L, Walencik A, Delbos F, Limou S, Gourraud PA, Vince N. HLA-EPI: A new EPIsode in exploring donor/recipient epitopic compatibilities. HLA 2021; 99:79-92. [PMID: 34862850 PMCID: PMC9545700 DOI: 10.1111/tan.14505] [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: 08/16/2021] [Revised: 11/16/2021] [Accepted: 12/02/2021] [Indexed: 11/30/2022]
Abstract
The HLA system plays a pivotal role both in transplantation and immunology. While classical HLA genotypes matching is made at the allelic level, recent progresses were developed to explore antibody–antigen recognition by studying epitopes. Donor to recipient matching at the epitopic level is becoming a trending topic in the transplantation research field because anti‐HLA antibodies are epitope‐specific rather than allele‐specific. Indeed, different HLA alleles often share common epitopes. We present the HLA‐Epi tool (hla.univ-nantes.fr) to study an HLA genotype at the epitope level. Using the international HLA epitope registry (Epregistry.com.br) as a reference, we developed HLA‐Epi to easily determine epitopic and allelic compatibility levels between several HLA genotypes. The epitope database covers the most common HLA alleles (N = 2976 HLA alleles), representing more than 99% of the total observed frequency of HLA alleles. The freely accessible web tool HLA‐Epi calculates an epitopic mismatch load between different sets of potential recipient‐donor pairs at different resolution levels. We have characterized the epitopic mismatches distribution in a cohort of more than 10,000 kidney transplanted pairs from European ancestry, which showed low number of epitopic mismatches: 56.9 incompatibilities on average. HLA‐Epi allows the exploration of epitope pairing matching to better understand epitopes contribution to immune responses regulation, particularly during transplantation. This free and ready‐to‐use bioinformatics tool not only addresses limitations of other related tools, but also offers a cost‐efficient and reproducible strategy to analyze HLA epitopes as an alternative to HLA allele compatibility. In the future, this could improve sensitization prevention for allograft allocation decisions and reduce the risk of alloreactivity.
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Affiliation(s)
- Estelle Geffard
- Centre de Recherche en Transplantation et Immunologie, Université de Nantes, CHU Nantes, Inserm, Nantes, France
| | - Léo Boussamet
- Centre de Recherche en Transplantation et Immunologie, Université de Nantes, CHU Nantes, Inserm, Nantes, France
| | - Alexandre Walencik
- Centre de Recherche en Transplantation et Immunologie, Université de Nantes, CHU Nantes, Inserm, Nantes, France.,Laboratoire d'Histocompatibilité et d'Immunogénétique, EFS Centre - Pays de la Loire, Nantes, France
| | - Florent Delbos
- Laboratoire d'Histocompatibilité et d'Immunogénétique, EFS Centre - Pays de la Loire, Nantes, France
| | - Sophie Limou
- Centre de Recherche en Transplantation et Immunologie, Université de Nantes, CHU Nantes, Inserm, Nantes, France.,Département Informatique et Mathématiques, Ecole Centrale de Nantes, Nantes, France
| | - Pierre-Antoine Gourraud
- Centre de Recherche en Transplantation et Immunologie, Université de Nantes, CHU Nantes, Inserm, Nantes, France
| | - Nicolas Vince
- Centre de Recherche en Transplantation et Immunologie, Université de Nantes, CHU Nantes, Inserm, Nantes, France
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9
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Kobayashi S, Sano H, Mochizuki K, Ohara Y, Takahashi N, Kudo S, Ikeda K, Ohto H, Kikuta A. Effects of second transplantation with T-cell-replete haploidentical graft using low-dose anti-thymocyte globulin on long-term overall survival in pediatric patients with relapse of leukemia after first allogeneic transplantation. Int J Hematol 2021; 115:414-423. [PMID: 34822127 DOI: 10.1007/s12185-021-03266-9] [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: 09/06/2021] [Revised: 11/15/2021] [Accepted: 11/15/2021] [Indexed: 10/19/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the preferred treatment for children with high-risk hematologic malignancies, but post-allo-HSCT relapse has a poor prognosis and limited treatment options. We evaluated the feasibility, outcome, and risk factors influencing survival after T-cell-replete haploidentical HSCT with low-dose anti-thymocyte globulin (ATG) in 30 patients with post-allo-HSCT relapse of acute lymphoblastic leukemia and acute myeloid leukemia. Overall, 50% of the patients had complete remission (CR) before the second transplant and the overall survival (OS) rate was 52%. In surviving patients (median follow-up 614 days), Kaplan-Meier analysis revealed estimated 2-year leukemia-free survival and OS rates of 48.1% and 61.1%, respectively. Cumulative incidences of 2-year non-relapse mortality and relapse were 24.7% and 36.3%, respectively. Achieving CR before the second allo-HSCT was a predominant independent prognostic factor identified in the multivariate analysis, with a significantly improved 2-year OS rate of 86.7%. T-cell-replete haplo-HSCT with low-dose ATG for second allo-HSCT may benefit a selected patient population.
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Affiliation(s)
- Shogo Kobayashi
- Department of Pediatric Oncology, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan.
| | - Hideki Sano
- Department of Pediatric Oncology, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Kazuhiro Mochizuki
- Department of Pediatric Oncology, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Yoshihiro Ohara
- Department of Pediatric Oncology, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Nobuhisa Takahashi
- Department of Pediatric Oncology, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Shingo Kudo
- Department of Pediatric Oncology, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Kazuhiko Ikeda
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima City, Fukushima, Japan
| | - Hitoshi Ohto
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima City, Fukushima, Japan
| | - Atsushi Kikuta
- Department of Pediatric Oncology, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
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10
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Molecular disparity in human leukocyte antigens is associated with outcomes in haploidentical stem cell transplantation. Blood Adv 2021; 4:3474-3485. [PMID: 32726398 DOI: 10.1182/bloodadvances.2019000797] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 06/19/2020] [Indexed: 02/06/2023] Open
Abstract
Haploidentical donors are increasingly used for patients requiring hematopoietic stem cell transplantation (HSCT). Although several factors have been associated with transplant outcomes, the impact of HLA disparity in haploidentical HSCT (haplo-HSCT) remains unclear. We investigated the impact of HLA disparity quantified by mismatched eplets (ME) load of each HLA locus on the clinical outcome of 278 consecutive haploidentical transplants. Here, we demonstrated that the degree of HLA molecular mismatches, at individual HLA loci, may be relevant to clinical outcome in the haplo-HSCT. A significantly better overall survival was associated with higher ME load from HLA-A (hazard ratio [HR], 0.97; 95% confidence interval [CI], 0.95-0.99; P = .003) and class I loci (HR, 0.99; 95% CI, 0.97-0.99; P = .045) in the host-versus-graft direction. The apparent survival advantage of HLA-A ME was primarily attributed to reduced risk in relapse associated with an increase in HLA-A ME load (subdistribution HR, 0.95; 95% CI, 0.92-0.98; P = .004). Furthermore, we have identified an association between the risk of grade 3-4 acute graft-versus-host disease (GVHD) and a higher ME load at HLA-B and class I loci in graft-versus-host (GVH) direction. Additionally, GVH nonpermissive HLA-DPB1 mismatch defined by T-cell epitope grouping was significantly associated with relapse protection (subdistribution HR, 0.19; 95% CI, 0.06-0.59; P = .004) without a concurrent increase in GVHD. These findings indicate that alloreactivity generated by HLA disparity at certain HLA loci is associated with transplant outcomes, and ME analysis of individual HLA loci might assist donor selection and risk stratification in haplo-HSCT.
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11
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Allogeneic hematopoietic stem cell transplantation from a 2-HLA-haplotype-mismatched family donor for posttransplant relapse: a prospective phase I/II study. Bone Marrow Transplant 2020; 56:70-83. [PMID: 32564055 DOI: 10.1038/s41409-020-0980-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 05/20/2020] [Accepted: 06/12/2020] [Indexed: 11/08/2022]
Abstract
HLA haploidentical hematopoietic stem cell transplantation (HSCT), i.e., HSCT from a 1-HLA-haplotype-mismatched family donor, has been successfully performed even as a second transplantation for posttransplant relapse. Is the haploidentical the limit of HLA mismatches in HSCT? In order to explore the possibility of HLA-mismatched HSCT from family donors beyond haploidentical relatives, we conducted a prospective phase I/II study of 2-HLA-haplotype-mismatched HSCT (2-haplo-mismatch HSCT). We enrolled 30 patients with posttransplant relapse (acute myeloid leukemia: 18, acute lymphoblastic leukemia: 11, non-Hodgkin lymphoma: 1). 2-haplo-mismatch HSCT was performed as the second to sixth transplantations. The donors were siblings (n = 12), cousins (n = 16), and second cousins (n = 2). The conditioning regimen consisted of fludarabine, cytarabine, melphalan, low-dose anti-thymocyte globulin, and 3 Gy of total body irradiation. Graft-versus-host disease (GVHD) prophylaxis consisted of tacrolimus, methylprednisolone, and mycophenolate mofetil. All patients achieved neutrophil engraftment, except for a case of early death. The cumulative incidences of grades II-IV and III-IV acute GVHD were 36.7% and 16.7%, respectively. The overall survival at 1 year, relapse, and non-relapse mortality rates was 30.1%, 38.9%, and 44.3%, respectively. Considering the poor prognosis of posttransplant relapse, 2-haplo-mismatch HSCT can be an alternative option in a second or third transplantation.
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12
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Rimando J, Slade M, DiPersio JF, Westervelt P, Gao F, Liu C, Romee R. The Predicted Indirectly Recognizable HLA Epitopes (PIRCHE) Score for HLA Class I Graft-versus-Host Disparity Is Associated with Increased Acute Graft-versus-Host Disease in Haploidentical Transplantation with Post-Transplantation Cyclophosphamide. Biol Blood Marrow Transplant 2020; 26:123-131. [PMID: 31563575 PMCID: PMC7286229 DOI: 10.1016/j.bbmt.2019.09.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 09/16/2019] [Accepted: 09/18/2019] [Indexed: 11/17/2022]
Abstract
The Predicted Indirectly Recognizable HLA Epitopes (PIRCHE) score quantifies the number of PIRCHEs in patient-donor pairs and represents an in silico measure of indirect alloreactivity. This biologic process is defined as T cell recognition of epitopes derived from mismatched, allogeneic HLA peptides that are subsequently presented by shared HLA molecules. Its association with clinical outcome has not been examined in haploidentical hematopoietic cell transplantation (haplo-HCT) with post-transplantation cyclophosphamide (PTCy). We hypothesized that the PIRCHE score (PS) would correlate with indirect alloreactivity and predict graft-versus-host disease (GVHD) risk and the incidence of relapse after haplo-HCT with PTCy. We retrospectively analyzed 148 patients who underwent peripheral blood stem cell T cell-replete haplo-HCT with PTCy at a single center between 2009 and 2016. For each patient-donor pair, the PS was calculated using the PIRCHE online matching tool. PSs were categorized by class and vector. The median class I graft-versus-host (GVH) PS was 11 (range, 0 to 56), and the median class I host-versus-graft (HVG) PS was 10 (range, 0 to 51). Class I GVH PS was associated with increased risk of grade II-IV acute GVHD (adjusted hazard ratio, 1.03 per PS unit increase; 95% confidence interval, 1.01 to 1.05; P= .008) but not of chronic GVHD or relapse. Our data show that use of the PS is a novel strategy for predicting clinical outcome in haplo-HCT; further studies using registry data and prospective cohorts are warranted to validate these findings.
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Affiliation(s)
- Joseph Rimando
- BMT and Leukemia Program, Washington University School of Medicine, Saint Louis, Missouri
| | - Michael Slade
- BMT and Leukemia Program, Washington University School of Medicine, Saint Louis, Missouri
| | - John F DiPersio
- BMT and Leukemia Program, Washington University School of Medicine, Saint Louis, Missouri
| | - Peter Westervelt
- BMT and Leukemia Program, Washington University School of Medicine, Saint Louis, Missouri
| | - Feng Gao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, Saint Louis, Missouri
| | - Chang Liu
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri.
| | - Rizwan Romee
- Division of Hematologic Malignancies and Transplantation, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
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13
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McCurdy SR, Luznik L. How we perform haploidentical stem cell transplantation with posttransplant cyclophosphamide. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2019; 2019:513-521. [PMID: 31808908 PMCID: PMC6913422 DOI: 10.1182/hematology.2019001323] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
HLA-haploidentical hematopoietic stem cell transplantation is now one of the most commonly employed alternative donor techniques, with most centers applying T-cell-replete strategies such as that developed by the Baltimore group using high-dose posttransplant cyclophosphamide. HLA-haploidentical hematopoietic stem cell transplantation using posttransplant cyclophosphamide is associated with low rates of severe graft-versus-host disease and nonrelapse mortality and does not require graft manipulation or storage, which results in a low graft acquisition cost. Its remarkable safety when used with reduced-intensity conditioning has been demonstrated in patients up to 75 years old with outcomes similar to those of patients in their 50s. Several large, registry-based retrospective studies have confirmed the efficacy of HLA-haploidentical hematopoietic stem cell transplantation with posttransplant cyclophosphamide, achieving results comparable to those of HLA-matched hematopoietic stem cell transplantation. In this article, we describe our approach to this rapidly available and clinically simple platform and address some of the key clinical questions associated with its use.
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Affiliation(s)
- Shannon R McCurdy
- Abramson Cancer Center and
- Division of Hematology and Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA; and
| | - Leo Luznik
- Department of Oncology and
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD
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14
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McCurdy SR, Luznik L. How we perform haploidentical stem cell transplantation with posttransplant cyclophosphamide. Blood 2019; 134:1802-1810. [PMID: 31751485 PMCID: PMC6872960 DOI: 10.1182/blood.2019001323] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 09/09/2019] [Indexed: 12/19/2022] Open
Abstract
HLA-haploidentical hematopoietic stem cell transplantation is now one of the most commonly employed alternative donor techniques, with most centers applying T-cell-replete strategies such as that developed by the Baltimore group using high-dose posttransplant cyclophosphamide. HLA-haploidentical hematopoietic stem cell transplantation using posttransplant cyclophosphamide is associated with low rates of severe graft-versus-host disease and nonrelapse mortality and does not require graft manipulation or storage, which results in a low graft acquisition cost. Its remarkable safety when used with reduced-intensity conditioning has been demonstrated in patients up to 75 years old with outcomes similar to those of patients in their 50s. Several large, registry-based retrospective studies have confirmed the efficacy of HLA-haploidentical hematopoietic stem cell transplantation with posttransplant cyclophosphamide, achieving results comparable to those of HLA-matched hematopoietic stem cell transplantation. In this article, we describe our approach to this rapidly available and clinically simple platform and address some of the key clinical questions associated with its use.
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Affiliation(s)
- Shannon R McCurdy
- Abramson Cancer Center and
- Division of Hematology and Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA; and
| | - Leo Luznik
- Department of Oncology and
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD
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15
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Imus PH, Blackford AL, Bettinotti M, Luznik L, Fuchs EJ, Huff CA, Gladstone DE, Ambinder RF, Borrello IM, Fuchs RJ, Swinnen LJ, Wagner-Johnston N, Gocke CB, Ali SA, Bolaños-Meade FJ, Jones RJ, Dezern AE. Severe Cytokine Release Syndrome after Haploidentical Peripheral Blood Stem Cell Transplantation. Biol Blood Marrow Transplant 2019; 25:2431-2437. [PMID: 31394272 DOI: 10.1016/j.bbmt.2019.07.027] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 07/17/2019] [Accepted: 07/25/2019] [Indexed: 12/22/2022]
Abstract
Inflammatory cytokines released by activated lymphocytes and innate cells in the context of cellular therapy can cause fever, vasodilatation, and end-organ damage, collectively known as cytokine release syndrome (CRS). CRS can occur after allogeneic blood or marrow transplantation, but is especially prevalent after HLA-haploidentical (haplo) peripheral blood transplantation (PBT). We reviewed charts of all patients who underwent haplo-PBT between October 1, 2013, and September 1, 2017 and graded CRS in these patients. A total of 146 consecutive patients who underwent related haplo-PBT were analyzed. CRS occurred in 130 patients (89%), with most cases of mild severity (grade 0 to 2). Severe CRS (grade 3 to 5) occurred in 25 patients (17%). In this group with severe CRS, 13 patients had encephalopathy, 12 required hemodialysis, and 11 were intubated. Death from the immediate complications of CRS occurred in 6 patients (24% of the severe CRS group and 4% of the entire haplo-PBT cohort). The cumulative probability of nonrelapse mortality (NRM) was 38% at 6 months for the patients with severe CRS and 8% (121 of 146) in patients without severe CRS. In conclusion, CRS occurs in nearly 90% of haplo-PBTs. Older haplo-PBT recipients (odds ratio [OR], 2.4; 95% confidence interval [CI], .83 to 6.75; P = .11) and those with a history of radiation therapy (OR, 3.85; 95% CI, 1.32 to 11.24; P = .01) are at increased risk of developing severe CRS. Although most recipients of haplo-PBT develop CRS, <20% experience severe complications. The development of severe CRS is associated with a significantly increased risk of NRM.
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Affiliation(s)
- Philip H Imus
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland.
| | - Amanda L Blackford
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Maria Bettinotti
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Leo Luznik
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Ephraim J Fuchs
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Carol Ann Huff
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Douglas E Gladstone
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Richard F Ambinder
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Ivan M Borrello
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Robert J Fuchs
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Lode J Swinnen
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Nina Wagner-Johnston
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Christian B Gocke
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Syed Abbas Ali
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - F Javier Bolaños-Meade
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Richard J Jones
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Amy E Dezern
- Department of Hematologic Malignancy, Johns Hopkins/Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
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