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Takeuchi Y, Miyao K, Negishi S, Ohara F, Motegi K, Wakabayashi H, Yokota H, Kuwano S, Sawa H, Inagaki Y, Sawa M. Clinical Benefit of Low-Dose Antithymocyte Globulin-Thymoglobulin as Graft-versus-Host Disease Prophylaxis in Patients Receiving Allogeneic Peripheral Blood Stem Cell Transplantation from HLA-Identical Donors. Transplant Cell Ther 2023; 29:325.e1-325.e10. [PMID: 36736783 DOI: 10.1016/j.jtct.2023.01.026] [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: 10/30/2022] [Revised: 01/05/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023]
Abstract
Graft-versus-host disease (GVHD) is a major complication of allogeneic peripheral blood stem cell transplantation (PBSCT). Previous randomized studies have already shown that the use of several types of antihuman T lymphocyte immune globulin (ATG) as GVHD prophylaxis can reduce the incidence of acute GVHD and chronic GVHD. However, the efficacy and safety of PBSCT from HLA-identical donors with low-dose ATG remain unclear. This study aimed to clarify the efficacy and safety of PBSCT from HLA-identical donors with low-dose ATG compared with PBSCT from HLA-identical donors without ATG. To do so, we retrospectively analyzed the outcomes of patients who underwent allogeneic PBSCT from HLA-identical donors with low-dose ATG-thymoglobulin (ATG-T; 2.5 mg/kg) versus those who did not receive ATG-T. Patient data were collected retrospectively from the medical records of Anjo Kosei Hospital. This study was conducted from 2009 to the final follow-up in October 2022. Forty-seven of 91 patients received ATG-T between January 2009 and March 2020. ATG-T reduced the incidence rates of moderate-to-severe chronic GVHD (hazard ratio [HR], .15; 95% confidence interval [CI], .057 to .41; P < .0010) and nonrelapse mortality (HR, .21; 95% CI, .0058 to.75, P = .016) without increasing the risk of relapse. Overall survival did not differ significantly between the 2 groups; however, the low-dose ATG-T group had better moderate-to-severe chronic GVHD-free, relapse-free survival rates (HR, .47; 95% CI, .27 to .80, P = .0054) than the non-ATG-T group. In addition, multistate analysis revealed that the low-dose ATG-T group had better current GVHD-free, relapse-free survival at 24 months after transplantation (45% [95% CI, 29% to 63%)] versus 21% [95% CI, 9.1% to 34%]; P = .015). Low-dose ATG-T was not associated with increased incidence of infections or adverse events. Our findings suggest that low-dose ATG-T can be beneficial for patients receiving PBSCT from HLA-identical donors. © 2023 American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc.
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Affiliation(s)
- Yuki Takeuchi
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan.
| | - Kotaro Miyao
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Shuto Negishi
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Fumiya Ohara
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Kenta Motegi
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | | | - Hirofumi Yokota
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Shihomi Kuwano
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Hitomi Sawa
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Yuichiro Inagaki
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Masashi Sawa
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
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2
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Grasso AG, Simeone R, Maestro A, Zanon D, Maximova N. Pre-Transplant Total Lymphocyte Count Determines Anti-Thymocyte Globulin Exposure, Modifying Graft-versus-Host Disease Incidence and Post-Transplant Thymic Restoration: A Single-Center Retrospective Study. J Clin Med 2023; 12:730. [PMID: 36675660 PMCID: PMC9860924 DOI: 10.3390/jcm12020730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/01/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
The use of anti-thymocyte globulin (ATG) as part of conditioning to prevent graft-versus-host disease (GVHD) may severely impair immune reconstitution (IR). We analyzed relationships between ATG exposure, the recipient lymphocyte count, IR, and transplant outcome. We retrospectively reviewed patients aged ≤ 18 years who underwent allogeneic HSCT between April 2005 and April 2020. The outcomes of interest included the incidence of GVHD, overall survival (OS), and IR. IR was analyzed through thymic magnetic resonance imaging (MRI) and by quantifying T CD4+ and recent thymic emigrants (RTEs). The ATG-exposed group was split into a low ATG/lymphocyte ratio subgroup (ratio < 0.01) and a high ATG/lymphocyte ratio subgroup (ratio > 0.01). The low ratio subgroup had a higher incidence of GVHD (29 [59%] vs. 7 [16.6%]) but a better IR in both laboratory and MRI imaging assessments (p < 0.0001). The median thymic volume in the low ratio subgroup was significantly higher (14.7 cm3 vs. 4.5 cm3, p < 0.001). This was associated with a better OS and lower transplant-related mortality (TRM) (80.4% vs. 58.0%, p = 0.031) and (13.1% vs. 33.0%, p = 0.035). An individualized approach to ATG dosing allows for the obtainment of rapid thymic reconstitution and the best transplant-related outcomes.
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Affiliation(s)
- Antonio Giacomo Grasso
- Institute for Maternal and Child Health—IRCCS Burlo Garofolo, Via dell’Istria 65/1, 34137 Trieste, Italy
| | - Roberto Simeone
- Department of Transfusion Medicine, ASUGI, Piazza dell’Ospitale 1, 34125 Trieste, Italy
| | - Alessandra Maestro
- Institute for Maternal and Child Health—IRCCS Burlo Garofolo, Via dell’Istria 65/1, 34137 Trieste, Italy
| | - Davide Zanon
- Institute for Maternal and Child Health—IRCCS Burlo Garofolo, Via dell’Istria 65/1, 34137 Trieste, Italy
| | - Natalia Maximova
- Institute for Maternal and Child Health—IRCCS Burlo Garofolo, Via dell’Istria 65/1, 34137 Trieste, Italy
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Pasic I, Lipton JH, Kim DD, Viswabandya A, Kumar R, Lam W, Law AD, Mattsson J, Michelis FV. Post-transplant cyclophosphamide combined with anti-thymocyte globulin for graft-vs-host disease prophylaxis improves survival and lowers non-relapse mortality in older patients undergoing allogeneic hematopoietic cell transplantation. Ann Hematol 2020; 99:1377-1387. [DOI: 10.1007/s00277-020-04033-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 04/10/2020] [Indexed: 12/19/2022]
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4
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Sheth V, Kennedy V, de Lavallade H, Mclornan D, Potter V, Engelhardt BG, Savani B, Chinratanalab W, Goodman S, Greer J, Kassim A, York S, Kenyon M, Gandhi S, Kulasekararaj A, Marsh J, Mufti G, Pagliuca A, Jagasia M, Raj K. Differential Interaction of Peripheral Blood Lymphocyte Counts (ALC) With Different in vivo Depletion Strategies in Predicting Outcomes of Allogeneic Transplant: An International 2 Center Experience. Front Oncol 2019; 9:623. [PMID: 31355140 PMCID: PMC6636242 DOI: 10.3389/fonc.2019.00623] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/24/2019] [Indexed: 11/17/2022] Open
Abstract
Dosing regimens for antithymocyte globulin (ATG) and anti-CD52 antibody (alemtuzumab) for graft vs. host disease prophylaxis (GVHD) are empiric or weight-based, and do not account for individual patient factors. Recently, it has been shown that recipient peripheral blood absolute lymphocyte count (ALC) on the day of ATG administration interacts with the dose of ATG administered to predict transplantation outcome. Similarly, we wanted to analyze if the recipient ALC interacts with alemtuzumab dosing to predict outcomes. We retrospectively compared 364 patients, 124 patients receiving ATG (anti-thymocyte globulin) for GVHD prophylaxis, and undergoing unrelated first allogeneic transplant for myeloid and lymphoid malignancies (group 1) to 240 patients receiving alemtuzumab (group 2), in similar time period. There was no difference in survival or acute and chronic GVHD between 60 and 100 mg of alemtuzumab dosing. Unlike ATG (where the pre-transplant recipient ALC interacted with ATG dose on day of its administration (day 1) to predict OS and DFS (p = 0.05), within alemtuzumab group, the recipient ALC on second day of alemtuzumab administration (day 2) and its interaction with alemtuzumab dose strongly predicted OS, DFS and relapse (p = 0.05, HR-1.81, 1.1–3.3; p = 0.002, HR-2.41, CI, 1.3–4.2; and p = 0.003, HR-2.78, CI, 1.4–5.2), respectively. ALC (day 2) of 0.08 × 109/lit or higher, had a specificity of 96% in predicting inferior DFS. Like ATG, there is definite but differential interaction between the recipient peripheral blood ALC and alemtuzumab dose to predict OS, DFS, and relapses.
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Affiliation(s)
- Vipul Sheth
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Vanessa Kennedy
- Department of Haematology and Stem Cell Transplant, Stanford University, Stanford, CA, United States
| | - Hugues de Lavallade
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Donal Mclornan
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Victoria Potter
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Brian G Engelhardt
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - Bipin Savani
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - Wichai Chinratanalab
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - Stacey Goodman
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - John Greer
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - Adetola Kassim
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - Sally York
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - Michelle Kenyon
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Shreyans Gandhi
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Austin Kulasekararaj
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Judith Marsh
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Ghulam Mufti
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Antonio Pagliuca
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
| | - Madan Jagasia
- Department of Haematology and Stem Cell Transplant, Vanderbilt University, Nashville, TN, United States
| | - Kavita Raj
- Department of Haematology and Stem Cell Transplantation, Kings College Hospital, London, United Kingdom
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5
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Kennedy VE, Chen H, Savani BN, Greer J, Kassim AA, Engelhardt BG, Goodman S, Sengsayadeth S, Chinratanalab W, Jagasia M. Optimizing Antithymocyte Globulin Dosing for Unrelated Donor Allogeneic Hematopoietic Cell Transplantation Based on Recipient Absolute Lymphocyte Count. Biol Blood Marrow Transplant 2018; 24:150-155. [DOI: 10.1016/j.bbmt.2017.08.029] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 08/24/2017] [Indexed: 12/27/2022]
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6
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Busca A, Aversa F. In-vivo or ex-vivo T cell depletion or both to prevent graft-versus-host disease after hematopoietic stem cell transplantation. Expert Opin Biol Ther 2017; 17:1401-1415. [PMID: 28846051 DOI: 10.1080/14712598.2017.1369949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Hematopoietic stem cell transplantation (HSCT) represents a widely accepted therapeutic strategy for the treatment of hematologic disorders which are otherwise considered incurable. Alloreactive T cells infused with the stem cell inoculum may generate graft-versus-host disease (GVHD) representing one the most relevant obstacles to the successful outcome of patients receiving allogeneic HSCT. Areas covered: In this review, the authors provide an overview of the most recent approaches of T-cell depletion (TCD) including ex-vivo αβ+ TCD and in-vivo TCD with anti-thymocyte globulin (ATG). Expert opinion: Ex vivo depletion of donor T-cells prevents both acute and chronic GVHD without the need for any additional posttransplant immunological prophylaxis either in haploidentical HSCT and HLA matched transplants. Three prospective trials evaluating the efficacy of ATG in matched unrelated donor transplant recipients demonstrated that ATG reduces the incidence of both acute and chronic GVHD without a significant increase of relapse rate, and similar results have been reported in the setting of blood stem cell grafts from matched sibling donors.
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Affiliation(s)
- Alessandro Busca
- a SSD Trapianto di Cellule Staminali , AOU Citta' della Salute e della Scienza , Torino , Italy
| | - Franco Aversa
- b Hematology and BMT Unit , University of Parma , Parma , Italy
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7
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Huang W, Yu L, Cao T, Li Y, Liu Z, Li H, Bo J, Zhao Y, Jing Y, Wang S, Zhu H, Dou L, Wang Q, Gao C. The efficacy and safety of rabbit anti-thymocyte globulin vs rabbit anti-T-lymphocyte globulin in peripheral blood stem cell transplantation from unrelated donors. Leuk Lymphoma 2015; 57:355-363. [PMID: 26118935 DOI: 10.3109/10428194.2015.1045901] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The comparative efficacy and safety of antithymocyte globulin (ATG) at fixed doses in patients undergoing allogeneic peripheral blood stem cell transplantation from unrelated donors (UR-PBSCT) has not been evaluated. In this study, the records of 56 patients and 54 patients who received pre-transplant ATG-Thymoglobulin (ATG-T) at a total dose of 10 mg/kg and ATG- Fresenius (ATG-F) at a total dose of 20 mg/kg, respectively, were retrospectively analyzed. ATG-F patients had a significantly lower probability of developing chronic graft-vs-host disease (cGVHD) than those treated with ATG-T (p = 0.04). ATG-F was associated with a non-significant trend towards lower relapse rates and higher survival at 3- and 5-years of follow-up compared with ATG-T. A significantly greater proportion of ATG-T patients experienced chills and high fever than ATG-F patients (p < 0.01). The current findings suggest that ATG-F may more effectively and safely prevent cGVHD without increasing relapse rates in patients undergoing UR-PBSCT.
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Affiliation(s)
- Wenrong Huang
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China.,b Department of Hematology , Hainan Branch of Chinese PLA General Hospital , Hainan province , PR China
| | - Li Yu
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Tingting Cao
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Yanfen Li
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Zhanxiang Liu
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Honghua Li
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Jian Bo
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Yu Zhao
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Yu Jing
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Shuhong Wang
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Haiyan Zhu
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Liping Dou
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Qunshun Wang
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
| | - Chunji Gao
- a Department of Hematology and BMT , Chinese PLA General Hospital , Beijing , PR China
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Blank G, Welker C, Sipos B, Sonntag K, Müller F, Eckert F, Seitz C, Nadalin S, LaCorcia G, Königsrainer A, Snell D, Handgretinger R, Schilbach K. Preemptive administration of human αβ T cell receptor-targeting monoclonal antibody GZ-αβTCR potently abrogates aggressive graft-versus-host disease in vivo. Ann Hematol 2015; 94:1907-19. [PMID: 26264693 DOI: 10.1007/s00277-015-2471-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 08/03/2015] [Indexed: 10/23/2022]
Abstract
GVHD, both acute and chronic, remains the major cause of morbidity and mortality after allogeneic hematopoietic stem cell transplantation. Thus, there is still a great need for therapeutic tools for the prevention and treatment of GVHD. Several biologics have shown promising results in salvage therapies but are attendant on an increased risk for opportunistic infections, lymphoproliferative disorders, and relapse. This is partly due to efficient T cell elimination that neither dissects alloreactive from non-alloreactive T cells nor considers functional and structural distinctiveness of pathogen- and malignancy-reactive γδ and iNKT T cells. A novel, humanized monoclonal antibody, GZ-αβTCR, specific for the human αβ T cell receptor, was evaluated in a xenogeneic GVHD model for its potential to prevent or ameliorate GVHD and prolong survival. We could show that GZ-αβTCR significantly attenuated clinical signs of GVHD and prolonged survival by preferential depletion of CD4 cells and the naïve T cell compartment, the trigger and driver of GVHD. In a regimen that included a preemptive dose, GZ-αβTCR treatment sufficiently abrogated GVHD. Importantly, GZ-αβTCR's specificity spared host cell-mediated immune competence of cell types other than αβT cells: namely γδT cells. GZ-αβTCR's outstanding capacity to prevent GVHD and ameliorate an ongoing GVHD while sparing immune cells other than αβT cells strongly recommends GZ-αβTCR for the prevention and treatment of acute GVHD in clinical settings.
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Affiliation(s)
- Gregor Blank
- Department of General, Visceral and Transplantation Surgery, University Hospital Tübingen, Tübingen, Germany.,Department of Pediatric Hematology and Oncology, University Children's Hospital Tübingen, Hoppe-Seyler Street 1, 72076, Tübingen, Germany
| | - Christian Welker
- Department of Pediatric Hematology and Oncology, University Children's Hospital Tübingen, Hoppe-Seyler Street 1, 72076, Tübingen, Germany
| | - Bence Sipos
- Department of Pathology, University Hospital Tübingen, Tübingen, Germany
| | - Katja Sonntag
- Department of Pediatric Hematology and Oncology, University Children's Hospital Tübingen, Hoppe-Seyler Street 1, 72076, Tübingen, Germany
| | - Friederike Müller
- Department of Pediatric Hematology and Oncology, University Children's Hospital Tübingen, Hoppe-Seyler Street 1, 72076, Tübingen, Germany
| | - Franziska Eckert
- Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany
| | - Christian Seitz
- Department of Pediatric Hematology and Oncology, University Children's Hospital Tübingen, Hoppe-Seyler Street 1, 72076, Tübingen, Germany
| | - Silvio Nadalin
- Department of General, Visceral and Transplantation Surgery, University Hospital Tübingen, Tübingen, Germany
| | | | - Alfred Königsrainer
- Department of General, Visceral and Transplantation Surgery, University Hospital Tübingen, Tübingen, Germany
| | | | - Rupert Handgretinger
- Department of Pediatric Hematology and Oncology, University Children's Hospital Tübingen, Hoppe-Seyler Street 1, 72076, Tübingen, Germany
| | - Karin Schilbach
- Department of Pediatric Hematology and Oncology, University Children's Hospital Tübingen, Hoppe-Seyler Street 1, 72076, Tübingen, Germany.
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9
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Binkert L, Medinger M, Halter JP, Heim D, Gerull S, Holbro A, Lengerke C, Weisser M, Passweg JR. Lower dose anti-thymocyte globulin for GvHD prophylaxis results in improved survival after allogeneic stem cell transplantation. Bone Marrow Transplant 2015; 50:1331-6. [PMID: 26121111 DOI: 10.1038/bmt.2015.148] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 04/30/2015] [Accepted: 05/15/2015] [Indexed: 01/16/2023]
Abstract
In vivo T-cell depletion with anti-thymocyte globulin (ATG) can attenuate GvHD but may increase infection and relapse risks. ATG-Fresenius (ATG-F) at a dose of 60 mg/kg was standard GvHD prophylaxis in unrelated donor hematopoietic stem cell transplantation (HSCT) at our institution. We changed to an incremental reduced dose regimen of 35 mg/kg and extended ATG prophylaxis to include older matched-related donor transplants considered to be at higher risk of GvHD. A total of 265 adults with hematological malignancies receiving a first allogeneic HSCT after myeloablative conditioning between 2009 and 2014 were analyzed in this cohort study. Patients had either received higher dose (n=32) or lower dose ATG-F (n=88) or no ATG (n=145). ATG-F was associated with slower engraftment and less chronic GvHD, whereas no effect was noted on acute grade II-IV GvHD and relapse incidence. Transplant-related mortality (TRM) was lower and survival higher with lower dose, but not with higher dose ATG-F. Both ATG-F groups were associated with more viral reactivation, viral disease and bacterial blood stream infection, but not invasive fungal infection, and with slower immune reconstitution. The recently adopted strategy of using lower doses of ATG-F in unrelated and older age-related donor HSCT appears to reduce TRM without increasing disease relapse, leading to slightly enhanced survival.
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Affiliation(s)
- L Binkert
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - M Medinger
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - J P Halter
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - D Heim
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - S Gerull
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - A Holbro
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - C Lengerke
- Division of Hematology, University Hospital Basel, Basel, Switzerland
| | - M Weisser
- Infectious Diseases, University Hospital Basel, Basel, Switzerland
| | - J R Passweg
- Division of Hematology, University Hospital Basel, Basel, Switzerland
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10
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El-Cheikh J, Crocchiolo R, Furst S, Bramanti S, Sarina B, Granata A, Vai A, Lemarie C, Faucher C, Mohty B, Harbi S, Bouabdallah R, Vey N, Santoro A, Chabannon C, Castagna L, Blaise D. Unrelated cord blood compared with haploidentical grafts in patients with hematological malignancies. Cancer 2015; 121:1809-16. [PMID: 25649994 DOI: 10.1002/cncr.29271] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/28/2014] [Accepted: 12/11/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Alternative donors, such as unrelated umbilical cord blood (UCB) and related haploidentical (haplo) donors, are more and more frequently searched for and used for patients who are candidates for allogeneic hematopoietic stem cell transplantation but are without a suitable related or unrelated donor. The aim of the current retrospective study was to compare the outcome of patients after haplo and UCB grafts prepared using a nonmyeloablative conditioning regimen. METHODS A total of 150 adult patients with high-risk hematologic diseases who underwent allogeneic hematopoietic stem cell transplantation from alternative donors at 2 centers (Paoli-Calmettes Institute [Marseille, France] and Humanitas Cancer Center [Milan, Italy]) were analyzed. Sixty-nine patients had haplo donors and 81 patients had UCB donors. RESULTS The cumulative incidence of nonrecurrence mortality at 1 year was 23% in the UCB group versus 17% in the haplo group (P = .39). The incidence of grade 2 to 4 acute graft-versus-host disease and extensive chronic graft-versus-host disease in the UCB group versus the haplo group was 52% versus 29% (P = .05) and 12% versus 6% (P<.0001), respectively. The overall survival rate at 2 years was 45% in the UCB group (95% confidence interval [95% CI], 34%-56%) versus 69% in the haplo group (95% CI, 58%-80%) (P = .10). The progression-free survival rate at 2 years was 36% in the UCB group (95% CI, 25%-47%) versus 65% in the haplo group (95% CI, 53%-77%) (P = .01). CONCLUSIONS The results of the current study suggest that for patients with high-risk hematological diseases without a related or unrelated donor, haploidentical transplants are a promising alternative option that deserves further investigation.
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Affiliation(s)
- Jean El-Cheikh
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France
| | | | - Sabine Furst
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France
| | | | | | - Angela Granata
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France
| | | | - Claude Lemarie
- Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France.,Cellular Therapy Center, Paoli-Calmettes Institute, Marseille, France
| | - Catherine Faucher
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France
| | - Bilal Mohty
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France
| | - Samia Harbi
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France.,Aix-Marseille University, Marseille, France
| | - Reda Bouabdallah
- Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France
| | - Norbert Vey
- Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France.,Aix-Marseille University, Marseille, France.,Cancer Research Center of Marseille, Marseille, France
| | | | - Christian Chabannon
- Cellular Therapy Center, Paoli-Calmettes Institute, Marseille, France.,Aix-Marseille University, Marseille, France.,Cancer Research Center of Marseille, Marseille, France
| | - Luca Castagna
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Humanitas Cancer Center, Milan, Italy
| | - Didier Blaise
- Transplantation and Cellular Therapy Unit (U2T), Paoli-Calmettes Institute, Marseille, France.,Department of Hematology and Medical Oncology, Paoli-Calmettes Institute, Marseille, France.,Aix-Marseille University, Marseille, France.,Cancer Research Center of Marseille, Marseille, France
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11
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Lee SH, Moon SJ, Park MJ, Kim EK, Moon YM, Cho ML. PIAS3 suppresses acute graft-versus-host disease by modulating effector T and B cell subsets through inhibition of STAT3 activation. Immunol Lett 2014; 160:79-88. [PMID: 24718277 DOI: 10.1016/j.imlet.2014.03.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/28/2014] [Accepted: 03/28/2014] [Indexed: 01/08/2023]
Abstract
Graft-versus-host disease (GVHD) caused by transplanted donor T cells remains the major obstacle of allogeneic bone marrow transplantation (BMT). Previous reports have suggested that IL-17-producing helper T (Th17) cells mediate the development of acute GVHD (aGVHD). Protein inhibitor of activated STAT3 (PIAS) inhibits the activity of the transcription factor STAT3, which is a pivotal transcription factor for Th17 differentiation. To elucidate whether PIAS3 could inhibit the development of aGVHD, pcDNA-PIAS3 or mock vector was administered in a murine model of aGVHD by intramuscular injection and subsequent electroporation. The results demonstrated that PIAS3 overexpression by pcDNA-vector administration significantly attenuated the clinical severity and histopathological severities of aGHVD involving the skin, liver, intestine, and lung. Additionally, the STAT3 activities in aGVHD target organs were suppressed by PIAS3 overexpression. Furthermore, phosphorylated (p) STAT3 activity in the spleen was profoundly attenuated in PIAS3-overexpressing GVHD mice. Interestingly, flow cytometric analysis demonstrated that the populations of CD21(high)CD23(low) marginal zone B cells were dramatically expanded in PIAS3-overexpressing mice. PIAS3-induced inhibition of aGVHD was largely related to the downregulation of Th1 and Th17 and the upregulation of Th2 and Treg populations. Both populations of pSTAT3(Tyr705)-expressing Th17 cells and B cells were significantly reduced in the spleens of PIAS3-overexpressing mice, whereas pSTAT5 activity was increased. In addition to CD4(+)CD25(+)Foxp3(+) Treg cells, the populations of CD8(+)CD25(+)Foxp3(+) Treg cells were also expanded by treatment with PIAS3. These data suggest the therapeutic potential of PIAS3 in the development of aGVHD through reciprocal regulation of Th17/Treg lineages.
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Affiliation(s)
- Sung-Hee Lee
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea; Laboratory of Immune Network, Conversant Research Consortium in Immunologic Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Su-Jin Moon
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Min-Jung Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea; Laboratory of Immune Network, Conversant Research Consortium in Immunologic Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Eun-Kyung Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea; Laboratory of Immune Network, Conversant Research Consortium in Immunologic Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Young-Mee Moon
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea; Laboratory of Immune Network, Conversant Research Consortium in Immunologic Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea; Laboratory of Immune Network, Conversant Research Consortium in Immunologic Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
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12
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Antithymocyte globulin before allogeneic stem cell transplantation for progressive myelodysplastic syndrome: a study from the French Society of Bone Marrow Transplantation and Cellular Therapy. Biol Blood Marrow Transplant 2014; 20:646-54. [PMID: 24462982 DOI: 10.1016/j.bbmt.2014.01.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 01/17/2014] [Indexed: 12/19/2022]
Abstract
We investigated the impact of rabbit antithymocyte globulins (ATG) on patient outcomes after allogeneic stem cell transplantation (allo-SCT) for progressive myelodysplastic syndrome (MDS). Of the 242 consecutive patients who underwent allo-SCT for progressive MDS between October 1999 and December 2009, 93 received ATG (ATG group) at the median dose of 5 mg/kg, whereas 149 patients did not (no-ATG group). Donors were sibling (n = 153) or HLA-matched unrelated (n = 89). Patients received blood (n = 90) or marrow (n = 152) grafts after either myeloablative (n = 109) or reduced-intensity (n = 133) conditioning. Three-year overall and event-free survival, nonrelapse mortality, relapse, and chronic graft-versus-host disease (GVHD) development were not significantly different between the 2 groups. In contrast, acute grade II to IV GVHD occurred more often in the no-ATG group (55% of the patients) than in the ATG group (27%, P < .0001). Similar results were observed with acute grade III to IV GVHD (28% and 14% in the no-ATG group and ATG group, respectively; P = .009). In multivariate analysis, after adjustment with propensity score, the absence of ATG was the strongest parameter associated with an increased risk of acute grade II to IV GVHD (hazard ratio, 2.13; 95% confidence interval, 1.35 to 3.37; P = .001]. ATG had no impact on overall and event-free survival or cumulative incidence of the relapse. In conclusion, the addition of ATG to allo-SCT conditioning did not increase the incidence of relapse of patients with progressive MDS. The incidence of acute GVHD was decreased without compromising outcomes.
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13
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Heim D, Gratwohl A. Role of allogeneic transplantation in chronic myeloid leukemia. Expert Rev Hematol 2014; 1:41-50. [DOI: 10.1586/17474086.1.1.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Effective prevention of GVHD using in vivo T-cell depletion with anti-lymphocyte globulin in HLA-identical or -mismatched sibling peripheral blood stem cell transplantation. Bone Marrow Transplant 2013; 49:126-30. [PMID: 24037022 DOI: 10.1038/bmt.2013.143] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 07/17/2013] [Accepted: 07/29/2013] [Indexed: 11/08/2022]
Abstract
To investigate the impact of anti-lymphocyte globulin (ATG-Fresenius) as part of the HLA-sibling transplantation, we evaluated 238 patients (median age 48 years) with different diagnoses (AML, ALL, CML and lymphoproliferative disorders). A total of 79 patients received ATG and 159 patients did not. In the ATG group, there were more HLA-mismatched donors (6% vs 1%, p=0.02), bad risk patients (70% vs 55%, P=0.04), reduced intensity conditioning (RIC) regimens (65% vs 34%, P=<0.001) and older patients (median age 51 vs 48 years, P=0.002). The median time to leukocyte engraftment was significantly faster in the non-ATG group (13 vs 15 days, P < 0.001). EBV reactivation was more often seen in the ATG group (9% vs 2%, P=0.05). Cumulative incidence of acute and chronic GVHD was less observed in the ATG group (27% vs 40%, P=0.004, and 33% vs 54%, P=0.002). The cumulative incidence rates of non-relapse mortality and of relapse at 5 years were 20 and 34%, respectively, for ATG and 34 and 29%, respectively, for non-ATG (P=0.06 and P=0.3). ATG can prevent GVHD without an obvious risk of relapse but should be confirmed in a randomized study.
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15
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Park MJ, Moon SJ, Lee SH, Yang EJ, Min JK, Cho SG, Yang CW, Park SH, Kim HY, Cho ML. Curcumin attenuates acute graft-versus-host disease severity via in vivo regulations on Th1, Th17 and regulatory T cells. PLoS One 2013; 8:e67171. [PMID: 23840617 PMCID: PMC3688629 DOI: 10.1371/journal.pone.0067171] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 05/16/2013] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND In this study we examined the in vivo and in vitro effects and mechanisms of action of curcumin on the development of acute graft-versus-host disease (GVHD) using a murine model. METHODOLOGY/PRINCIPAL FINDINGS Mixed lymphocyte reactions were used to determine the in vitro effects of curcumin. Treatment with curcumin attenuated alloreactive T cell proliferation and inhibited the production of interferon (IFN)-γ and interleukin (IL)-17. In a murine acute GVHD model, transplantation of curcumin-treated allogeneic splenocytes into irradiated recipient mice significantly reduced the clinical severity scores of acute GVHD manifested in the liver, skin, colon and lung as compared with animals receiving vehicle-treated splenocytes. c-Fos and c-Jun expression levels in the skin and intestine, which are major target organs, were analyzed using immunohistochemical staining. Expression of both proteins was reduced in epithelial tissues of skin and intestine from curcumin-treated GVHD animals. The IFN-γ-expressing CD4(+) splenocytes and IFN-γ-expressing lymph node cells were dramatically decreased in curcumin-treated mice. In contrast, CD4(+)Foxp3(+) splenocytes were increased in the curcumin-treated acute GVHD animals. Flow cytometric analysis revealed that animals transplanted with curcumin-treated allogeneic splenocytes showed increased populations of CD4(+) regulatory T cells (Tregs) as well as CD8(+) Treg cells, compared to animals administered vehicle-treated splenocytes. Curcumin-treated acute GVHD animals could have a change in B cell subpopulations. CONCLUSION/SIGNIFICANCE In the present study, we investigated the efficacy and mechanism of action of curcumin treatment against acute GVHD. The acute GVHD mice administered with curcumin-treated splenocytes showed significantly reduced severity of acute GVHD. Curcumin exerted in vivo preventive effects on acute GVHD by reciprocal regulation of T helper 1 (Th1) and Treg (both CD4(+) and CD8(+) Treg) cell lineages as well as B cell homeostasis.
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Affiliation(s)
- Min-Jung Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Su-Jin Moon
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sung-Hee Lee
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Eun-Ji Yang
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Jun-Ki Min
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Seok-Goo Cho
- Catholic Blood and Marrow Transplantation Center, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Chul-Woo Yang
- Transplant Research Center, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sung-Hwan Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Ho-Youn Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
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16
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Shikari H, Antin JH, Dana R. Ocular Graft-versus-Host Disease: A Review. Surv Ophthalmol 2013; 58:233-51. [DOI: 10.1016/j.survophthal.2012.08.004] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 07/30/2012] [Accepted: 08/07/2012] [Indexed: 12/13/2022]
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17
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Du K, Hu Y, Wu K, Huang H. Long-term outcomes of antithymocyte globulin in patients with hematological malignancies undergoing myeloablative allogeneic hematopoietic cell transplantation: a systematic review and meta-analysis. Clin Transplant 2013; 27:E91-E100. [PMID: 23383989 DOI: 10.1111/ctr.12091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2012] [Indexed: 01/12/2023]
Abstract
Antithymocyte globulin (ATG) has shown efficacy in preventing acute GVHD (aGVHD) in allogeneic hematopoietic cell transplantation (allo-HCT), but its efficacy in chronic GVHD (cGVHD) and long-term outcomes remains controversial. We conducted a systematic review and meta-analysis to evaluate potential benefit and risk of prophylactic ATG use in myeloablative HCT. We searched Pubmed, EMBASE, Cochrane databases, and included 10 trials (two RCTs and eight retrospective) comparing ATG use vs. control with a total of 1859 patients. The median follow-ups were over two yr. Outcomes assessed included overall cGVHD, extensive cGVHD, overall survival (OS), disease-free survival, relapse, and causes of death. Our results showed ATG significantly decreased overall cGVHD (RR = 0.59; 95% CI: 0.53-0.66, p < 0.00001), extensive cGVHD (RR = 0.34; 95% CI: 0.25-0.47, p < 0.00001). Pooled results also showed ATG use was associated with a marginal increased risk of relapse (RR = 1.28; 95% CI: 1.01-1.63, p = 0.04), and a non-inferior OS (HR = 0.86; 95% CI: 0.74-1.01, p = 0.06). We conclude prophylactic use of ATG exerts a favorable effect in reducing cGVHD without survival impairment in a long term, although a higher relapse rate is a major threat.
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Affiliation(s)
- Kaili Du
- Bone Marrow Transplantation Center, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
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18
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Arpinati M, Tolomelli G, Bochicchio MT, Castagnetti F, Amabile M, Bandini G, Bonifazi F, Stanzani M, Rosti G, Martinelli G, Baccarani M. Molecular monitoring of BCR-ABL transcripts after allogeneic stem cell transplantation for chronic myeloid leukemia. Biol Blood Marrow Transplant 2013; 19:735-40. [PMID: 23333776 DOI: 10.1016/j.bbmt.2013.01.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 01/11/2013] [Indexed: 01/13/2023]
Abstract
The monitoring of minimal residual disease (MRD) through low sensitivity real-time (RT) polymerase chain reaction (PCR) analysis of BCR-ABL transcripts allows early detection of chronic myeloid leukemia (CML) relapse after allogeneic hematopoietic stem cell transplantation (HSCT). The introduction of more sensitive techniques, such as RT quantitative (Q)-PCR, may lead to an overestimation of the risk of CML relapse. In this study, we reviewed the results of peripheral blood RT Q-PCR in CML patients who underwent allogeneic HSCT from 1983 to 2007. In our laboratory, RT Q-PCR analysis was routinely performed since 2002. Eighty-seven of 189 patients had available RT Q-PCR data; 63 patients had at least 3 RT Q-PCR analyses assessable. Fifty-two of 63 patients (83%) had, at least once, detectable transcript levels, but with an BCR-ABL/ABL ratio <.1% defined as <MR3 (molecular remission <0,1%), whereas 11 (17%) had persistent undetectable BCR-ABL transcripts. Six of 52 patients with <MR3 relapsed, defined as BCR-ABL transcript numbers >.1% confirmed by the finding of Ph+ cells in bone marrow. No patients with persistent undetectable transcripts relapsed (P = .19). Relapse did not correlate with the number of occurrences of <MR3 or with the time to the first <MR3 result. Finally, of 46 patients with detectable transcripts who did not relapse, 35 had undetectable transcripts at last contact. RT Q-PCR analysis had low specificity (19%) and low positive predictive value (12%) in predicting relapse of CML patients after allogeneic HSCT. Our data suggest that detection of low BCR-ABL transcript levels by RT Q-PCR analysis has a poor accuracy in defining the risk of CML relapse and should not be considered as the unique indication to treatment. Fluctuation of BCR-ABL transcripts levels is common as late as ≥10 years posttransplantation, possibly suggesting the long-term persistence of CML stem cells.
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Affiliation(s)
- Mario Arpinati
- Department of Hematology and Oncological Sciences Seragnoli, University of Bologna, Italy.
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19
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Effects of different serum-levels of ATG after unrelated donor umbilical cord blood transplantation. Transpl Immunol 2012; 27:59-62. [DOI: 10.1016/j.trim.2012.06.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 06/04/2012] [Accepted: 06/07/2012] [Indexed: 11/24/2022]
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20
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Anti-T cell antibodies as part of the preparative regimen in hematopoietic cell transplantation--a debate. Biol Blood Marrow Transplant 2012; 18:S111-5. [PMID: 22226093 DOI: 10.1016/j.bbmt.2011.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Prinz I, Koenecke C. Therapeutic potential of induced and natural FoxP3(+) regulatory T cells for the treatment of Graft-versus-host disease. Arch Immunol Ther Exp (Warsz) 2012; 60:183-90. [PMID: 22476537 DOI: 10.1007/s00005-012-0172-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 01/04/2012] [Indexed: 01/30/2023]
Abstract
Graft-versus-host disease (GvHD) remains a major complication after allogeneic hematopoietic stem-cell-transplantation. Present GvHD prophylaxis and treatment is still based on unspecific immunosuppressive drug therapy. Over the last decade, the potential of cell-based therapies involving the infusion of regulatory T cells has emerged as a feasible alternative approach for the treatment and prevention of GvHD. Here we review current efforts to translate data obtained in rodent models into clinical trials. Special emphasis is placed on the variety of strategies to generate sufficient numbers of alloantigen-specific regulatory T cells for adoptive cell therapy. This can be achieved either by expansion or by induction of a regulatory phenotype in naive T cells. Stability of the immunosuppressive phenotype of transferred regulatory T cells even in the highly inflammatory environment of acute GvHD will be thereby a critical parameter for actual therapeutic application.
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Affiliation(s)
- Immo Prinz
- Institute of Immunology, Hannover Medical School, Hannover, Germany.
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22
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Bacigalupo A, Chien J, Barisione G, Pavletic S. Late Pulmonary Complications After Allogeneic Hematopoietic Stem Cell Transplantation: Diagnosis, Monitoring, Prevention, and Treatment. Semin Hematol 2012; 49:15-24. [DOI: 10.1053/j.seminhematol.2011.10.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Intensification of GVHD prophylaxis with low-dose ATG-F before allogeneic PBSC transplantation from HLA-identical siblings in adult patients with hematological malignancies: results from a retrospective analysis. Bone Marrow Transplant 2011; 47:1105-11. [PMID: 22101198 DOI: 10.1038/bmt.2011.225] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Several studies have shown that chronic GVHD (cGVHD) is more frequent in patients receiving transplants from PBSC than in those receiving BM. In the setting of PBSC-unrelated transplants, the addition of anti-T-cell globulin (ATG) has shown a significant decrease in incidence/severity of cGVHD, without an increase in relapses or infections. However, no prospective data are yet available in the sibling setting. We retrospectively analyzed the effects of intensification of standard GVHD prophylaxis (CsA+MTX) by the addition of low-dose ATG in 245 patients receiving a transplant from HLA-identical sibling. From 1996 to 2001, patients received PBSC as the preferred source (group 2), and then ATG was added before transplant (group 3) because of a high cGVHD rate. Patients receiving BM in the same time period were analyzed as a control group (group 1). The incidence of grade III-IV acute GVHD and cGVHD was not significantly different in the three groups, but extensive cGVHD was highest in group 2 (38%) compared with group 3 (21%) or group 1 (28%; P=0.03). OS, TRM and time to relapse/progression were similar in the three groups. Our analysis shows that adding ATG to PBSC sibling allogeneic transplants can lower cGVHD, without an increase of relapse. Further prospective studies are needed to confirm these findings.
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Osman K, Elliott B, Mandeli J, Scigliano E, Malone A, Isola L, Grosskreutz C. Non-myeloablative conditioning and allogeneic transplantation for multiple myeloma. Am J Hematol 2010; 85:249-54. [PMID: 20162541 DOI: 10.1002/ajh.21633] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In multiple myeloma (MM), allogeneic stem cell transplantation (alloHCT) carries a lower relapse risk than autologous transplantation but a greater transplant-related mortality. Nonmyeloablative conditioning for allogeneic transplantation (NST) reduces transplant-related toxicity. Results are encouraging when used during first remission in low-risk patients, but less-so in relapsed or refractory disease. This is a single-center retrospective analysis of 20 previously treated MM patients who underwent NST from matched-related or matched-unrelated donors from 2000-2006. Median age was 52.7 years (37.2-68.0). Twenty-five percent had advanced or high-risk disease. Eleven still had active disease prior to NST. Conditioning was total body irradiation 200 cGy on a single fraction on day -5, followed by antithymocyte globulin (ATG) 1.5 mg/kg/day and fludarabine 30 mg/m(2)/day on days -4 to -2. All received immunosuppression, most commonly with oral mycofenylate mofetil and cyclosporine beginning on day -5. At day 100, 50% had achieved complete remission. Transplant-related mortality was 25%. Median overall survival (OS) was 21.2 months (0.6-90+) and progression-free survival (PFS) 6.6 months (0.6-90+). Both OS and PFS were 24% at 3 years. OS was significantly greater for patients with age <52 years (median 27 months vs. 7.9 months, P = 0.031), and there was a trend toward greater OS for those with beta2 microglobulin <2.5 mg/l (median 27 months vs. 7.7 months, P = 0.08). Donor characteristics and Ig type had no significant effect on survival. These data suggest a benefit of NST in relapsed/refractory MM. Randomized trials must be performed to confirm and further qualify this benefit.
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25
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Hemmati PG, Terwey TH, Massenkeil G, le Coutre P, Vuong LG, Neuburger S, Dörken B, Arnold R. Reduced intensity conditioning prior to allogeneic stem cell transplantation in first complete remission is effective in patients with acute myeloid leukemia and an intermediate-risk karyotype. Int J Hematol 2010; 91:436-45. [PMID: 20180052 DOI: 10.1007/s12185-010-0515-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Revised: 01/18/2010] [Accepted: 01/24/2010] [Indexed: 01/21/2023]
Abstract
To evaluate the efficacy of reduced intensity conditioning (RIC) prior to allogeneic stem cell transplantation (alloSCT) in patients with acute myeloid leukemia (AML) in first complete remission (CR1), we retrospectively analyzed the outcome of 93 consecutive patients transplanted at our institution either following RIC (n = 37) or standard myeloablative conditioning (MAC) (n = 56) between 1999 and 2007. Projected overall survival (OS) or disease-free survival (DFS) for all patients at 1, 2, and 5 years was 78 or 70%, 65 or 57%, and 61 or 53% in the RIC group versus 73 or 70%, 68 or 62%, and 56 or 54% in the standard MAC group. In the subgroup of patients with an intermediate-risk karyotype projected OS at 1, 2, and 5 years was 86, 68, and 68% following RIC (n = 21) or 75, 69, and 66% following standard MAC (n = 36). Relapse or treatment-related mortality (TRM) was 15 or 17% (RIC group) and 26 or 14% (standard MAC group). Taken together, these data suggest that RIC-alloSCT may induce stable remissions in patients with AML transplanted in CR1. In particular, patients with an intermediate-risk karyotype ineligible to transplantation following standard MAC may benefit from RIC-alloSCT in CR1 at a low TRM.
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Affiliation(s)
- Philipp G Hemmati
- Department of Hematology and Oncology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany.
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26
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Hamadani M, Blum W, Phillips G, Elder P, Andritsos L, Hofmeister C, O'Donnell L, Klisovic R, Penza S, Garzon R, Krugh D, Lin T, Bechtel T, Benson DM, Byrd JC, Marcucci G, Devine SM. Improved nonrelapse mortality and infection rate with lower dose of antithymocyte globulin in patients undergoing reduced-intensity conditioning allogeneic transplantation for hematologic malignancies. Biol Blood Marrow Transplant 2009; 15:1422-30. [PMID: 19822302 DOI: 10.1016/j.bbmt.2009.07.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2009] [Accepted: 07/07/2009] [Indexed: 01/06/2023]
Abstract
We sought to reduce the risk of infectious complications and nonrelapse mortality (NRM) associated with the use of antithymocyte globulin (ATG) without compromising control of acute graft-versus-host disease (aGVHD) in patients undergoing reduced-intensity conditioning (RIC) transplantation. As part of an ongoing quality improvement effort, we lowered the dose of rabbit ATG from 7.5 mg/kg of ATG (R-ATG) (n = 39) to 6.0 mg/kg of ATG (r-ATG) (n = 33) in association with fludarabine (Flu) and busulfan (BU) RIC transplantation and then monitored patients for adverse events, relapse, and survival. Of the 72 mostly high risk (82%) patients studied, 89% received unrelated donor allografts, 25% of which were HLA-mismatched. No differences in posttransplantation full donor-cell chimerism rates were observed between the 2 ATG-dose groups (P > .05). When R-ATG versus r-ATG patients were compared, we observed no significant difference in the cumulative incidence of grade II-IV aGVHD (32% versus 27%; P = .73) or grade III-IV aGVHD (23% versus 11%; P = .28). However, the r-ATG group had significantly less cytomegalovirus (CMV) reactivation (64% versus 30%; P = .005) and bacterial infections (56% versus 18%; P = .001), a better 1-year cumulative incidence of NRM (18% versus 3%; P = .03), and a trend for better 1-year overall survival (OS) (64% versus 84%; P = .07) compared to R-ATG patients. A seemingly modest reduction in the dose of rabbit ATG did not compromise control of aGVHD or achievement of donor chimerism, but led to a significant decrease in the risk of serious infections and NRM in high-risk RIC allograft recipients.
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Affiliation(s)
- Mehdi Hamadani
- Division of Hematology/Oncology, Blood and Marrow Transplantation Section, and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, USA.
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27
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Current role of stem cell transplantation in chronic myeloid leukaemia. Best Pract Res Clin Haematol 2009; 22:431-43. [DOI: 10.1016/j.beha.2009.05.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Remberger M, Sundberg B. Low Serum Levels of Total Rabbit-IgG Is Associated with Acute Graft-Versus-Host Disease after Unrelated Donor Hematopoietic Stem Cell Transplantation: Results from a Prospective Study. Biol Blood Marrow Transplant 2009; 15:996-9. [DOI: 10.1016/j.bbmt.2009.04.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Accepted: 04/18/2009] [Indexed: 10/20/2022]
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Kim HJ, Min WS, Cho BS, Eom KS, Kim YJ, Min CK, Lee S, Cho SG, Jin JY, Lee JW, Kim CC. Successful Prevention of Acute Graft-versus-Host Disease Using Low-Dose Antithymocyte Globulin after Mismatched, Unrelated, Hematopoietic Stem Cell Transplantation for Acute Myelogenous Leukemia. Biol Blood Marrow Transplant 2009; 15:704-17. [DOI: 10.1016/j.bbmt.2009.02.010] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2008] [Accepted: 02/23/2009] [Indexed: 10/20/2022]
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Abstract
Haemopoietic-cell transplantation (HCT) is an intensive therapy used to treat high-risk haematological malignant disorders and other life-threatening haematological and genetic diseases. The main complication of HCT is graft-versus-host disease (GVHD), an immunological disorder that affects many organ systems, including the gastrointestinal tract, liver, skin, and lungs. The number of patients with this complication continues to grow, and many return home from transplant centres after HCT requiring continued treatment with immunosuppressive drugs that increases their risks for serious infections and other complications. In this Seminar, we review our understanding of the risk factors and causes of GHVD, the cellular and cytokine networks implicated in its pathophysiology, and current strategies to prevent and treat the disease. We also summarise supportive-care measures that are essential for management of this medically fragile population.
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Affiliation(s)
- James L M Ferrara
- University of Michigan, Pediatrics and Internal Medicine, Blood and Marrow Transplantation Program, Ann Arbor, MI 48109-5942, USA.
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Martin MG, Uy GL, Procknow E, Stockerl-Goldstein K, Cashen A, Westervelt P, Abboud CN, Augustin K, Luo J, DiPersio JF, Vij R. Allo-SCT conditioning for myelodysplastic syndrome and acute myeloid leukemia with clofarabine, cytarabine and ATG. Bone Marrow Transplant 2009; 44:13-7. [PMID: 19139740 DOI: 10.1038/bmt.2008.423] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The application of myeloablative Allo-SCT is limited by its associated morbidity and mortality. Reduced-intensity conditioning regimens attempt to diminish these, but are associated with a higher risk of disease relapse. Given the evidence of activity of clofarabine and cytarabine in myelodysplastic syndrome/acute myeloid leukemia (MDS/AML), we explored a novel reduced-intensity conditioning regimen based on this backbone. Patients received clofarabine 40 mg/m(2) i.v. on days -6 to -2, cytarabine 1 g/m(2) i.v. on days -6 to -2 and anti-thymocyte globulin (ATG) 1 mg/kg on day -4 and 2.5 mg/kg x 2 days on days -3 and -2. Seven patients were enrolled. Their median age was 54 years; three were with MDS and four with AML. The median duration of neutropenia was 14 days and that of thrombocytopenia was 22 days. Toxicities included hand-foot syndrome (57% grade 2), elevated alanine aminotransferase (ALT) (57% grade 3), elevated aspartate aminotransferase (AST) (86% grade 3) and hyperbilirubinemia (29% grade 3-5). No acute GVHD was observed. Enrollment to the trial was halted after three of the first seven patients expired on days +15, +26 and +32. Three of the four surviving patients have relapsed with a median TTP of 152 days. This regimen was not sufficiently immunosuppressive to ensure engraftment, and was associated with substantial morbidity and mortality.
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Affiliation(s)
- M G Martin
- Section of Leukemia and Bone Marrow Transplantation, Division of Oncology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
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Bredeson CN, Zhang MJ, Agovi MA, Bacigalupo A, Bahlis NJ, Ballen K, Brown C, Chaudhry MA, Horowitz MM, Kurian S, Quinlan D, Muehlenbien CE, Russell JA, Savoie L, Rizzo JD, Stewart DA. Outcomes following HSCT using fludarabine, busulfan, and thymoglobulin: a matched comparison to allogeneic transplants conditioned with busulfan and cyclophosphamide. Biol Blood Marrow Transplant 2008; 14:993-1003. [PMID: 18721762 DOI: 10.1016/j.bbmt.2008.06.009] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Accepted: 06/16/2008] [Indexed: 11/27/2022]
Abstract
We have reported a lower incidence of acute graft-versus-host disease (aGVHD) with a novel conditioning regimen using low-dose rabbit antithymocyte globulin (ATG; Thymoglobulin [TG]) with fludarabine and intravenous busulfan (FluBuTG). To assess further this single-center experience, we performed a retrospective matched-pair analysis comparing outcomes of adult patients transplanted using the FluBuTG conditioning regimen with matched controls from patients reported to the CIBMTR receiving a first allogeneic hematopoietic stem cell transplant (HCT) after standard oral busulfan and cyclophosphamide (BuCy). One hundred twenty cases and 215 matched controls were available for comparison. Patients receiving FluBuTG had significantly less treatment related mortality (TRM; 12% versus 34%, P < .001) and grades II-IV aGVHD (15% versus 34%, P < .001) compared to BuCy patients. The risk of relapse was higher in the FluBuTG patients (42% versus 20%, P < .001). The risks of chronic GVHD (cGVHD) and disease free survival (DFS) were similar in the cases and controls. These results suggest that the novel regimen FluBuTG decreases the risk of aGVHD and TRM after HLA-identical sibling HSCT, but is associated with an increased risk of relapse, resulting in similar DFS. Whether these conditioning regimens may be more suitable for specific patient populations based on relapse risk requires testing in prospective randomized trials.
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Affiliation(s)
| | - Mei-Jie Zhang
- Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin
| | - Manza-A Agovi
- Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin
| | | | - Nizar J Bahlis
- Alberta Blood and Marrow Transplant Program, Calgary, AB, Canada
| | - Karen Ballen
- Massachusetts General Hospital, Boston, Massacuhsetts
| | | | - M Ahsan Chaudhry
- Alberta Blood and Marrow Transplant Program, Calgary, AB, Canada
| | - Mary M Horowitz
- Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin
| | - Seira Kurian
- City of Hope National Medical Center, Duarte, California
| | - Diana Quinlan
- Alberta Blood and Marrow Transplant Program, Calgary, AB, Canada
| | | | - James A Russell
- Alberta Blood and Marrow Transplant Program, Calgary, AB, Canada
| | - Lynn Savoie
- Alberta Blood and Marrow Transplant Program, Calgary, AB, Canada
| | - J Douglas Rizzo
- Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin.
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Kim HJ. HLA Mismatched Allogeneic Hematopoietic Stem Cell Transplantation. THE KOREAN JOURNAL OF HEMATOLOGY 2007. [DOI: 10.5045/kjh.2007.42.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Hee-Je Kim
- Division of Hematology, Department of Internal Medicine, Catholic Hemopoietic Stem Cell Transplantation Center, St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
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35
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Wang XN, Collin M, Sviland L, Marshall S, Jackson G, Schulz U, Holler E, Karrer S, Greinix H, Elahi F, Hromadnikova I, Dickinson AM. Skin explant model of human graft-versus-host disease: prediction of clinical outcome and correlation with biological risk factors. Biol Blood Marrow Transplant 2006; 12:152-9. [PMID: 16443513 DOI: 10.1016/j.bbmt.2005.09.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2005] [Accepted: 09/26/2005] [Indexed: 11/25/2022]
Abstract
A human skin explant model has been used to predict the clinical outcome and to study the immunopathology of human graft-versus-host disease (GVHD). Whether the model gives the same predictive effect for GVHD in different hematopoietic stem cell transplantation (HSCT) settings has not been assessed. It is also unknown whether the skin explant result reflects the known biological risk factors for clinical GVHD. In this study, the skin explant model was used to detect graft-versus-host reactions (GVHR) in vitro for 225 eligible patient/donor pairs. The predicted skin GVHR grade was correlated with the outcome of clinical GVHD, as well as HLA matching status, sex mismatches, and patient age. In sibling HSCT under either myeloablative or reduced-intensity conditioning, a significant correlation was observed between the predicted skin GVHR and clinical GVHD (P < .001 and P = .033, respectively). In HSCT using unrelated donors, the involvement of T-cell depletion led to a sharp increase in false-positive GVHR results, and no correlation was observed between the predicted skin GVHR and clinical GVHD. The skin GVHR grade correlated significantly with the HLA matching status (HLA-matched sibling pairs, HLA-matched unrelated pairs, and HLA-unmatched unrelated pairs). Furthermore, HLA-matched sibling pairs with a female-to-male sex mismatch had a significantly higher overall skin GVHR grade and a higher ratio of high- versus low-grade skin GVHR than the sibling pairs with all other sex combinations. Patient age was not reflected in the skin explant result. In conclusion, the predictive value of the skin explant model for aGVHD varies depending on the clinical transplant protocols, such as the type of GVHD prophylaxis used. Nevertheless, the skin explant model remains a unique in vitro system that provides an in situ histopathologic readout for studying alloreactivity and human GVHD. The model has also the potential to aid the development of novel prophylaxis and treatment for GVHD.
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Affiliation(s)
- Xiao-Nong Wang
- Haematological Sciences, Medical School, University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom.
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36
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Milligan DW, Grimwade D, Cullis JO, Bond L, Swirsky D, Craddock C, Kell J, Homewood J, Campbell K, McGinley S, Wheatley K, Jackson G. Guidelines on the management of acute myeloid leukaemia in adults. Br J Haematol 2006; 135:450-74. [PMID: 17054678 DOI: 10.1111/j.1365-2141.2006.06314.x] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Bacigalupo A, Lamparelli T, Barisione G, Bruzzi P, Guidi S, Alessandrino PE, di Bartolomeo P, Oneto R, Bruno B, Sacchi N, van Lint MT, Bosi A. Thymoglobulin prevents chronic graft-versus-host disease, chronic lung dysfunction, and late transplant-related mortality: long-term follow-up of a randomized trial in patients undergoing unrelated donor transplantation. Biol Blood Marrow Transplant 2006; 12:560-5. [PMID: 16635791 DOI: 10.1016/j.bbmt.2005.12.034] [Citation(s) in RCA: 270] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2005] [Accepted: 12/15/2005] [Indexed: 10/24/2022]
Abstract
This is an update of a randomized study on antithymocyte globulin (ATG; Thymoglobulin) before transplantation in patients undergoing unmanipulated marrow transplantation from unrelated donors. The median follow-up for surviving patients is 5.7 years. At last follow-up, chronic graft-versus-host disease (GVHD) was scored in 60% of non-ATG and in 37% of ATG patients (P=.05), and extensive chronic GVHD was present in 41% and 15%, respectively (P=.01). Chronic lung dysfunction was diagnosed in 51% versus 19% of patients (P=.005). Forced vital capacity decreased significantly with time in non-ATG patients (P=.005), but not in patients who received ATG (P=.30). The proportion of patients with Karnofsky scores of >or=90% at 4 years was 57% versus 89% in non-ATG versus ATG patients (P=.03). The actuarial 6-year survival for all patients randomized was 31% versus 44% (non-ATG versus ATG; P=.80). The cumulative incidence of transplant-related mortality was 51% versus 41% (P=.70) and of relapse was 32% versus 40% (P=.90). For patients who survived 1 year, transplant-related mortality was 25% versus 3% (P=.03), and actuarial survival was 58% versus 85% (P=.09). In conclusion, the addition of ATG to cyclosporine/methotrexate provides significant protection against extensive chronic GVHD and chronic lung dysfunction, reduces late transplant mortality, and improves quality of life in patients undergoing unrelated donor transplantation.
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Abstract
PURPOSE OF REVIEW This review aims to discuss current clinical trial using antithymocyte globulin in the context of hematopoietic stem cell transplantation. Published papers, as well as abstracts from European and American meetings, have been used together with original data. RECENT FINDINGS The review shows that antithymocyte globulin is used frequently in Europe in the setting of unrelated or family mismatched donor transplants. This may not be the case for American centers, reluctant to introduce antithymocyte globulin possibly due to known side effects such as prolonged immune deficiency and increased incidence of infections, including life threatening Epstein-Barr virus-associated lymphoproliferative disorders. Results from few randomized trials show that antithymocyte globulin reduces acute and chronic graft-versus-host disease, and this is in keeping with results from retrospective analysis on large number of patients. SUMMARY Several issues remain open, such as optimal dose, optimal timing with respect to infusion of stem cells and whether the commercially available agents have comparable effects. Prospective trials are needed to answer these important questions.
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Bonifazi F, Bandini G, Stanzani M, Palandri F, Giannini B, Arpinati M, Rosti G, Baccarani M. In vivo T-cell depletion with low-dose ATG is effective in reducing cGVHD after peripheral blood stem cell myeloablative sibling transplants in CML: results from a prospective phase II study. Bone Marrow Transplant 2005; 35:1025-6. [PMID: 15806130 DOI: 10.1038/sj.bmt.1704940] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Bacigalupo A. Antilymphocyte/thymocyte globulin for graft versus host disease prophylaxis: efficacy and side effects. Bone Marrow Transplant 2005; 35:225-31. [PMID: 15558041 DOI: 10.1038/sj.bmt.1704758] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Antilymphocyte/thymocyte globulins (ALGs/ATGs) have now been used for over 30 years in the setting of hemopoietic stem cell transplants (HSCT), with the aim of preventing graft-versus-host disease (GvHD). This is true especially for transplants from alternative donors. In this review, we will be discussing available published and unpublished data on the advantages and disadvantages of using ALG/ATG before or after an allogeneic HSCT. These studies show that ALG/ATG significantly reduce the incidence and severity of acute and chronic GvHD. Unfortunately, they also show that immune deficiency is a more prolonged and infectious complication more frequent in patients receiving ALG/ATG, suggesting the importance of aggressive monitoring of viral and fungal infections. In particular, the emerging problem of Epstein-Barr virus (EBV) infections and EBV-related lymphoproliferative disorders will be discussed, together with the use of pre-emptive therapy with rituximab. I personally believe ALG/ATG has an important role in allogeneic HSCT, especially today with the increasing use of peripheral blood transplants and the consequent high risk of chronic GvHD. ALG/ATG should be used with caution, and the negative consequences must be understood and possibly prevented.
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Affiliation(s)
- A Bacigalupo
- Dipartimento di Emato-Oncologia, Ospedale San Martino, Genova, Italy.
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41
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Peñas PF, Fernández-Herrera J, García-Diez A. Dermatologic treatment of cutaneous graft versus host disease. Am J Clin Dermatol 2005; 5:403-16. [PMID: 15663337 DOI: 10.2165/00128071-200405060-00005] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Cutaneous involvement in graft versus host disease (GVHD) after allogeneic hematopoietic cell transplant can be separated into acute GVHD (aGVHD), lichenoid chronic GVHD (cGVHD) and sclerodermatous cGVHD. It seems clear that these syndromes result from different mechanisms and entail different treatment approaches. Standard treatment of cutaneous aGVHD involves the intensification of immunosuppressive therapy with adequate topical supportive management. In skin-limited disease, phototherapy has shown promising results. In cutaneous cGVHD, the combination of corticosteroids and cyclosporine (ciclosporin) is the recommended therapy, and other immunosuppressants may be added depending on whether lichenoid or sclerodermatous lesions are present. High response rates to phototherapy have been found in lichenoid disease, while sclerodermatous disease responds better to etretinate or extracorporeal photochemotherapy. Localized cutaneous cGVHD may be treated with topical corticosteroids alone. Few reports on the effect of treatments in GVHD clearly describe the cutaneous involvement and the influence of the treatment on the skin. Therefore, dermatologists should be deeply involved in the diagnosis and treatment of GVHD, and good dermatologic grading systems should be developed. Theses changes will increase our knowledge of cutaneous GVHD, and relevant data in the evaluation of the effect of therapy in the disease will be obtained.
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Affiliation(s)
- Pablo F Peñas
- Department of Dermatology, Hospital Universitario de la Princesa, Madrid, Spain.
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42
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Rowley SD, Goldberg SL, Pecora AL, Hsu JS, Brecher BA, Butrin L, Kobbe K, McKiernan P, Preti R. Unrelated donor hematopoietic stem cell transplantation for patients with hematologic malignancies using a nonmyeloablative conditioning regimen of fludarabine, low-dose total body irradiation, and rabbit antithymocyte globulin. Biol Blood Marrow Transplant 2005; 10:784-93. [PMID: 15505609 DOI: 10.1016/j.bbmt.2004.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hematopoietic stem cell chimerism can be established after low-dose conditioning regimens, although the risk of donor cell rejection increases for unrelated donor transplantations. We added pretransplantation rabbit antithymocyte globulin (6 mg/kg) to an established conditioning regimen of fludarabine (90 mg/m2) and single-fraction total body irradiation (200 cGy) followed by postgrafting immunosuppression with cyclosporine A and mycophenolate mofetil for 22 patients with hematologic malignancies. One patient rejected the graft and successfully underwent transplantation with cells from a second donor by using the same conditioning regimen. The actuarial probability of developing acute graft-versus-host disease grade II to IV before day 100 was 40%, although 9 of 14 patients who survived beyond 100 days developed chronic graft-versus-host disease. These data support a hypothesis that the addition of antithymocyte globulin decreases the risk of graft-versus-host and host-versus-graft reactions when combined with a nonmyeloablative conditioning regimen of fludarabine and total body irradiation.
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Affiliation(s)
- Scott D Rowley
- Adult Blood and Marrow Transplant Program, Hackensack University Medical Center, Hackensack, New Jersey 07601, USA.
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Chakrabarti S, Marks DI. Should we T cell deplete sibling grafts for acute myeloid leukaemia in first remission? Bone Marrow Transplant 2004; 32:1039-50. [PMID: 14625574 DOI: 10.1038/sj.bmt.1704281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
There is controversy regarding the best approach to the management of patients with acute myeloid leukaemia (AML) in first remission (CR1). The impact of matched related allogeneic transplant in CR1 on the overall survival is equivocal, but what is not in doubt is a significant reduction in the relapse risk, compared to both autologous transplants and intensive chemotherapy, which is because of the allogeneic or the graft-versus-leukaemia (GVL) effect. Yet, this does not always translate to improved survival. T cell depletion (TCD) can reduce deaths related to graft-versus-host disease (GVHD) and its therapy, but might increase the relapse risk. The existing literature suggests that TCD is associated with a disease-free survival (DFS) of 53-80% and is associated with a lower relapse risk than anticipated (0-30%). We discuss the evolution of TCD in allogeneic transplantation and its relevance in AML-CR1 with regard to GVHD, DFS, immune reconstitution and GVL effect. It is possible that by reducing TRM related to GVHD and extramedullary toxicities, particularly in the older patients, TCD might improve the impact of allogeneic transplantation in AML-CR1, provided the immune reconstitution and the relapse risk are not adversely affected. Randomised studies are underway to address these issues.
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Affiliation(s)
- S Chakrabarti
- Department of Haematology, Queen Elizabeth Hospital, Birmingham, UK
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44
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ter Meulen CG, van Riemsdijk I, Hené RJ, Christiaans MHL, Borm GF, Corstens FHM, van Gelder T, Hilbrands LB, Weimar W, Hoitsma AJ. Dose Study of Thymoglobulin During Conditioning for Unrelated Donor Allogeneic Stem-Cell Transplantation. Transplantation 2004; 78:101-6. [PMID: 15257046 DOI: 10.1097/01.tp.0000133513.29923.44] [Citation(s) in RCA: 138] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Steroid-related bone loss is a recognized complication after renal transplantation. In a prospective, randomized, multicenter study we compared the influence of a steroid-free immunosuppressive regimen with a regimen with limited steroid exposure on the changes in bone mass after renal transplantation. METHODS A total of 364 recipients of a renal transplant were randomized to receive either daclizumab (1 mg/kg on days 0 and 10 after transplantation; steroid-free group n=186) or prednisone (0.3 mg/kg per day tapered to 0 mg at week 16 after transplantation; steroids group n=178). All patients received tacrolimus, mycophenolate mofetil, and, during the first 3 days, 100 mg prednisolone intravenously. Changes in bone mineral density (BMD) were evaluated in 135 and 126 patients in the steroid-free and steroids group, respectively. RESULTS The mean (+/- SD) BMD of the lumbar spine decreased slightly in both groups during the first 3 months after transplantation (steroid-free -1.3 +/- 4.0% [P<0.01]; steroids -2.3 +/-4.2% [P<0.01]). In the following months, lumbar BMD recovered in both groups (P<0.01), resulting in a lumbar BMD at 12 months after transplantation comparable with the baseline value. No difference between the groups was found at 3 months (steroid-free versus steroids +1.0%; 95% confidence interval -0.0%-+2.0%, P=0.060) and at 12 months after transplantation (steroid-free versus steroids +0.9%; 95% confidence interval -0.8%-+2.6%, NS). CONCLUSION The use of a moderate dose of steroids during 4 months after transplantation has no important influence on bone mass during the first year after renal transplantation. On average, both regimens prevented accelerated bone loss.
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45
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Nakagawa T, Kami M, Hori A, Kim SW, Murashige N, Hamaki T, Kishi Y, Fujimoto H, Matsuoka N, Okajima E, Komiyama M, Tobisu KI, Wakayama T, Uike N, Tajima K, Makimoto A, Mori S, Tanosaki R, Takaue Y, Kakizoe T. Allogeneic hematopoietic stem cell transplantation with a reduced-intensity conditioning regimen for treatment of metastatic renal cell carcinoma: single institution experience with a minimum 1-year follow-up. Exp Hematol 2004; 32:599-606. [PMID: 15246155 DOI: 10.1016/j.exphem.2004.04.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2003] [Revised: 03/31/2004] [Accepted: 04/20/2004] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the safety and efficacy of allogeneic hematopoietic stem cell transplantation with a reduced-intensity conditioning regimen (RIST) for interferon-alpha-refractory metastatic renal cell carcinoma (RCC). PATIENTS AND METHODS Of 26 patients referred to the National Cancer Center Hospital for possible RIST between June 2000 and April 2002, an HLA-identical relative was identified for 12 patients. Nine patients underwent RIST. The conditioning regimen consisted of fludarabine 180 mg/m2 or cladribine 0.66 mg/kg, plus busulfan 8 mg/kg and rabbit antithymocyte globulin 5 mg/kg. Graft-vs-host disease (GVHD) prophylaxis was cyclosporine alone. RESULTS All patients achieved engraftment without grade III to IV nonhematologic regimen-related toxicity. All patients achieved complete donor-type chimerism without donor lymphocyte infusion by day 60. Four patients developed acute GVHD, and four developed chronic GVHD. One patient (11%) achieved partial response. As of July 2003, six patients were alive at median follow-up of 681 days. The actuarial overall survival rate was 89% at 1 year and 74% at 2 years. The overall survival rate tended to be higher in the 12 patients with a matched donor than in the other 14 patients without a matched donor (p = 0.088). CONCLUSION Our RIST procedure is feasible without severe toxicity. The efficacy of RIST for RCC should be confirmed in phase II/III clinical trials.
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Affiliation(s)
- Tohru Nakagawa
- Urology Division, National Cancer Center Hospital, Tokyo, Japan
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Mohty M, Boiron JM, Damaj G, Michallet AS, Bay JO, Faucher C, Perreau V, Bilger K, Coso D, Stoppa AM, Tabrizi R, Gastaut JA, Michallet M, Maraninchi D, Blaise D. Graft-versus-myeloma effect following antithymocyte globulin-based reduced intensity conditioning allogeneic stem cell transplantation. Bone Marrow Transplant 2004; 34:77-84. [PMID: 15133485 DOI: 10.1038/sj.bmt.1704531] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In all, 41 multiple myeloma (MM) patients received an antithymocyte globulin (ATG), fludarabine, and busulfan-based reduced intensity conditioning (RIC) for allogeneic stem cell transplantation (allo-SCT) from HLA-identical siblings. In total, 29 patients (70%) were in partial remission, one patient in complete remission, and 11 (27%) with progressive disease at the time of allo-SCT. Median time between diagnosis and allo-SCT was 24 months. The cumulative incidences of grade II-IV and grade III-IV acute graft-versus-host disease (GVHD) were 36% (95% CI, 21-51%) and 7% (95% CI, 2-20%), respectively. Overall, 10 patients developed limited chronic GVHD, whereas seven developed an extensive form (cumulative incidence, 41% (95% CI, 26-56%) at 2 years). With a median follow-up of 389 days, the overall cumulative incidence of transplant-related mortality (TRM) was 17% (95% CI, 6-28%). In all, 11 patients (27%) are in continuous complete remission, and the Kaplan-Meier estimates of overall survival (OS) and progression-free survival (PFS) at 2 years were 62% (95% CI, 47-76%) and 41% (95% CI, 23-62%), respectively. PFS and OS were significantly higher in patients with chronic GVHD as compared to patients without chronic GVHD (P=0.006 for PFS and P=0.01 for OS). Collectively, these data demonstrate that RIC allo-SCT can mediate a potentially curative graft-versus-myeloma effect with an acceptable incidence of toxicity and TRM.
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Affiliation(s)
- M Mohty
- Unité de Transplantation et de Thérapie Cellulaire, Institut Paoli-Calmettes, Marseille, France.
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Schetelig J, Bornhäuser M, Kiehl M, Schwerdtfeger R, Kröger N, Runde V, Zabelina T, Held TK, Thiede C, Fauser AA, Beelen D, Zander A, Ehninger G, Siegert W. Reduced-intensity conditioning with busulfan and fludarabine with or without antithymocyte globulin in HLA-identical sibling transplantation – a retrospective analysis. Bone Marrow Transplant 2003; 33:483-90. [PMID: 14716342 DOI: 10.1038/sj.bmt.1704384] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
It is unknown whether the addition of antithymocyte globulin (ATG) to reduced-intensity conditioning with busulfan (BU) and fludarabine (FLU) is beneficial in HLA-identical sibling transplantation. Therefore, we analyzed retrospectively data on 83 patients, who received peripheral blood stem cells from HLA-identical siblings after conditioning with either 8 mg/kg BU and 150 mg/m2 FLU (n=45) or 8 mg/kg BU, 180 mg/m2 FLU and 40 mg/kg ATG (n=38). Graft-versus-host disease (GVHD) prophylaxis consisted of CSA alone (n=32) or a combination with either MTX or MMF (n=51). The median age was 52 years. Graft failure occurred in two patients after BU/FLU and in three after BU/FLU/ATG (P=0.66). After conditioning with BU/FLU, platelet recovery was significantly faster (P=0.017), and less platelet (P<0.001) and red blood cell (P=0.002) support was needed. Incidences of acute GVHD grades II and IV were 46 and 49%, respectively. Limited chronic GVHD occurred more often after BU/FLU compared to BU/FLU/ATG (54 vs 23%, P=0.02). The overall survival, non-relapse and relapse mortality did not differ significantly. We conclude that in peripheral blood stem cell transplantation from HLA-identical siblings after reduced-intensity conditioning with BU and FLU, ATG has no major impact on the rate of graft rejection and acute GVHD, but it reduces the incidence of limited chronic GVHD.
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Affiliation(s)
- J Schetelig
- Charité Campus Virchow Klinikum, Humboldt-Universität zu Berlin, Klinik für Innere Medizin mS Hämatologie und Onkologie, Berlin, Germany
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Meijer E, Cornelissen JJ, Löwenberg B, Verdonck LF. Antithymocyteglobulin as prophylaxis of graft failure and graft-versus-host disease in recipients of partially T-cell-depleted grafts from matched unrelated donors: a dose-finding study. Exp Hematol 2003; 31:1026-30. [PMID: 14585365 DOI: 10.1016/s0301-472x(03)00204-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE In this study, we set out to evaluate the effect of three different antithymocyteglobulin (ATG) doses on graft failure and incidence of graft-vs-host disease (GVHD) among recipients of partially T-cell-depleted (TCD) grafts from matched unrelated donors (MUDs). PATIENTS AND METHODS Data of 74 consecutively treated MUD recipients were analyzed. Fifty-two, 13, and 9 MUD patients were treated with ATG in a total dose of 8 mg/kg, 6 mg/kg, and 4 mg/kg (given from days -8 until -4), respectively. RESULTS Granulocyte and platelet engraftment were not different between the groups, while graft failure was observed in two patients only (receiving 8 mg/kg and 4 mg/kg ATG, respectively). The cumulative incidence of severe (grade III-IV) acute GVHD and extensive chronic GVHD was 4%, 0%, 44% and 11%, 8%, 44% in groups receiving ATG in a dose of 8 mg/kg, 6 mg/kg, and 4 mg/kg, respectively (severe acute GVHD: p<0.001; extensive chronic GVHD: p=0.05). CONCLUSION Based on these findings, we recommend when ATG is used in the setting of stem cell transplantation with (partially) TCD grafts from MUDs, to give a total dose of 6 to 8 mg/kg. A further decrease in dosage resulted in a highly significant increased incidence of severe acute and extensive chronic GVHD.
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Affiliation(s)
- Ellen Meijer
- Department of Hematology, University Medical Center Utrecht, Utrecht, The Netherlands.
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Giles FJ, Keating A, Goldstone AH, Avivi I, Willman CL, Kantarjian HM. Acute myeloid leukemia. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2003:73-110. [PMID: 12446420 DOI: 10.1182/asheducation-2002.1.73] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In this chapter, Drs. Keating and Willman review recent advances in our understanding of the pathophysiology of acute myeloid leukemia (AML) and allied conditions, including the advanced myelodysplastic syndromes (MDS), while Drs. Goldstone, Avivi, Giles, and Kantarjian focus on therapeutic data with an emphasis on current patient care and future research studies. In Section I, Dr. Armand Keating reviews the role of the hematopoietic microenvironment in the initiation and progression of leukemia. He also discusses recent data on the stromal, or nonhematopoietic, marrow mesenchymal cell population and its possible role in AML. In Section II, Drs. Anthony Goldstone and Irit Avivi review the current role of stem cell transplantation as therapy for AML and MDS. They focus on data generated on recent Medical Research Council studies and promising investigation approaches. In Section III, Dr. Cheryl Willman reviews the current role of molecular genetics and gene expression analysis as tools to assist in AML disease classification systems, modeling of gene expression profiles associated with response or resistance to various interventions, and identifying novel therapeutic targets. In Section IV, Drs. Hagop Kantarjian and Francis Giles review some promising agents and strategies under investigation in the therapy of AML and MDS with an emphasis on novel delivery systems for cytotoxic therapy and on targeted biologic agents.
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Affiliation(s)
- Francis J Giles
- M.D. Anderson Cancer Center, Department of Leukemia, Houston, TX 77030, USA
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Grosskreutz C, Ross V, Scigliano E, Fruchtman S, Isola L. Low-dose total body irradiation, fludarabine, and antithymocyte globulin conditioning for nonmyeloablative allogeneic transplantation. Biol Blood Marrow Transplant 2003; 9:453-9. [PMID: 12869959 DOI: 10.1016/s1083-8791(03)00139-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Nonmyeloablative allogeneic peripheral blood progenitor cell transplantation with low-dose total body irradiation (TBI; 200 cGy) plus fludarabine followed by cyclosporine and mycophenolate mofetil results in modest graft rejection rates. Acute and chronic graft-versus-host diseases (GVHD) are also seen and may not differ substantially from those that occur after fully ablative transplantation. Adding antithymocyte globulin (ATG) to pretransplant conditioning produces substantial immunosuppression. Because of its persistence in the circulation, ATG can achieve in vivo T-cell depletion. Twenty-five patients who were not eligible for conventional fully ablative allogeneic stem cell transplantation by virtue of age or comorbidities underwent nonmyeloablative allogeneic transplantation with ATG 15 mg/kg/d days -4 to -1, TBI 200 cGy on a single fraction on day -5, and fludarabine 30 mg/m(2)/d on days -4 to -2. Oral mycophenolate mofetil 15 mg/kg every 12 hours and cyclosporine 6 mg/kg every 12 hours were started on day -5. Grafts were unmanipulated peripheral blood progenitor cells mobilized with filgrastim 10 microg/kg/d and collected on day 5. The median age of the recipients was 57 years (range, 30-67 years); diagnoses were non-Hodgkin lymphoma (n = 11), acute myeloid leukemia (n = 6), multiple myeloma (n = 3), acute lymphoblastic leukemia (n = 2), severe aplastic anemia (n = 1), paroxysmal nocturnal hemoglobinuria (n = 1), and myelodysplastic syndrome (n = 1). The median CD34(+) and CD3(+) contents of the grafts were 7.6 x 10(6)/kg and 1.6 x 10(8)/kg, respectively. Five patients received voluntary unrelated donor grafts. Three patients, 2 with voluntary unrelated donor grafts and 1 with a sib donor, received a 1 antigen-mismatched graft. The rest were fully matched. Twenty-two of 25 patients were evaluable for chimerism. Sixteen had >/=95% donor chimerism. Four patients displayed 80% to 90% donor chimerism, 1 displayed 78%, and 1 displayed 64%. Eleven patients relapsed with their original disease. One patient rejected the graft at 180 days. The median hospital stay was 27 days. Complications included GVHD in 6 patients (3 patients had grade I or II GVHD of skin and liver, and 3 patients had grade III or IV GVHD of liver and gut). Two of the patients with GVHD had mismatched grafts. Transplant-related toxicity was seen in 4 patients and infection in 5 patients. The median length of follow-up was 162 days (range, 17-854 days). Complete remissions were seen in 10 patients. Four patients remained in complete response (CR) at 280 to 595 days. One patient relapsed with non-Hodgkin lymphoma after a CR of 728 days. Of the 25 patients, 16 died (6 of relapsed disease, 4 of GVHD, 3 of infection, and 3 of transplant-related toxicity) and 9 are alive (6 with CR-2 of them after donor leukocyte infusion-and 3 with relapsed disease). The addition of ATG to low-dose TBI and fludarabine nonmyeloablative conditioning was well tolerated and resulted in >80% donor engraftment in this small cohort. As in other series of truly nonmyeloablative transplantation, a high rate of relapse was observed. Donor engraftment may be facilitated by the addition of ATG to low-dose TBI and fludarabine conditioning.
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Affiliation(s)
- Celia Grosskreutz
- Bone Marrow Transplantation Service, Division of Hematology, Department of Medicine, Mount Sinai Medical Center, New York, New York 10029, USA
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