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Long-Term Infectious and Noninfectious Outcomes of Monthly Alemtuzumab as a Calcineurin Inhibitor- and Steroid-Free Regimen for Pancreas Transplant Recipients. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2020; 2020:8883183. [PMID: 33101558 PMCID: PMC7569440 DOI: 10.1155/2020/8883183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/22/2020] [Accepted: 09/28/2020] [Indexed: 11/18/2022]
Abstract
Multiple doses of alemtuzumab for immunosuppressive therapy of patients with hematologic malignancies and hematopoietic stem cell transplant have been associated with a high rate of infection. In transplantation, limited alemtuzumab dosing has been successfully used as induction immunosuppression. The effect of multiple doses of alemtuzumab, used as maintenance therapy to minimize steroid and/or calcineurin inhibitor toxicity in solid organ transplant recipients, is unknown. We evaluated the infectious and noninfectious outcomes of 179 pancreas transplant recipients treated with alemtuzumab for induction and maintenance therapy (extended alemtuzumab exposure (EAE)) from 2/28/2003 through 8/31/2005, compared with 159 pancreas transplant recipients with standard induction and maintenance (SIM) therapy performed before (1/1/2002 until 12/31/2002) and after (1/1/2006 until 12/31/2006) the implementation of EAE. EAE was associated with higher risk of overall infections (hazard ratio (HR) 1.33 (1.06–1.66), P=0.01), bacterial infections (HR 1.33 (1.05–1.67), P=0.02), fungal infections (HR 1.86 (1.28–2.71), P < 0.01), and cytomegalovirus infections (HR 2.29 (1.39–3.77), P < 0.01). In addition, EAE was associated with higher risk of acute cellular rejection (HR 2.09 (1.46–2.99), P < 0.01). In conclusion, while a limited alemtuzumab dosing is safe and effective for induction therapy in pancreas transplantation, EAE combined with steroid and calcineurin minimization is associated with a high risk of infectious complications and acute cellular rejection.
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Kako S, Gomyo A, Akahoshi Y, Harada N, Kameda K, Ugai T, Wada H, Ishihara Y, Kawamura K, Sakamoto K, Sato M, Terasako-Saito K, Kimura SI, Kikuchi M, Nakasone H, Kanda J, Kanda Y. Haploidentical transplantation using low-dose alemtuzumab: Comparison with haploidentical transplantation using low-dose thymoglobulin. Eur J Haematol 2019; 102:256-264. [PMID: 30578673 DOI: 10.1111/ejh.13204] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To establish the optimal strategy for haploidentical hematopoietic stem cell transplantation (HSCT). METHODS We performed a prospective study on haploidentical HSCT using low-dose alemtuzumab. Alemtuzumab was added at 0.25 mg/kg for 2 days. The primary outcome measure was the survival rate with the engraftment of donor cells and without grade III-IV acute graft-vs-host disease (GVHD) at 60 days after transplantation. RESULTS Fourteen adult patients with advanced hematological disease were enrolled. The primary outcome measure was achieved in 86% of the patients. Six patients experienced relapse/progression. Non-relapse death was observed in three patients, and all of them had a history of previous allogeneic HSCT. Overall survival and progression-free survival rates at 1 year were 51% and 43%, respectively. Four patients were suspected to have herpes simplex virus infection and three had aseptic meningitis under the use of acyclovir at 200 mg. There were no deaths due to viral infection. Compared to those who underwent haploidentical HSCT using thymoglobulin, patients with alemtuzumab showed a slower recovery of CD8+ T-cells and lower incidences of GVHD and EB virus reactivation. CONCLUSIONS Haploidentical HSCT using low-dose alemtuzumab can be performed safely. We need to overcome the high relapse/progression rate in non-remission patients.
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Affiliation(s)
- Shinichi Kako
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Ayumi Gomyo
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yu Akahoshi
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Naonori Harada
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kazuaki Kameda
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Tomotaka Ugai
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Hidenori Wada
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yuko Ishihara
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Koji Kawamura
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kana Sakamoto
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Miki Sato
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kiriko Terasako-Saito
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Shun-Ichi Kimura
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Misato Kikuchi
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Hideki Nakasone
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Junya Kanda
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yoshinobu Kanda
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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Planinsic RM, Raval JS, Gorantla VS. Anesthesia and Perioperative Care in Reconstructive Transplantation. Anesthesiol Clin 2017; 35:523-538. [PMID: 28784224 DOI: 10.1016/j.anclin.2017.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Reconstructive transplantation of vascularized composite allografts (VCAs), such as upper extremity, craniofacial, abdominal, lower extremity, or genitourinary transplants, has emerged as a cutting-edge specialty, with more than 50 programs in the United States and 30 programs across the world performing these procedures. Most VCAs involve complicated technical planning and preparation, protracted surgery, and complex immunosuppressive or immunomodulatory protocols, each associated with unique anesthesiology challenges. This article outlines key procedural, patient, and protocol-related aspects of VCA relevant to anesthesiology management with the goal of ensuring patient safety and optimizing surgical, immunologic, and functional outcomes.
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Affiliation(s)
- Raymond M Planinsic
- Department of Anesthesiology, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite C-200, Pittsburgh, PA 15213, USA.
| | - Jay S Raval
- Division of Transfusion Medicine, Department of Pathology and Laboratory Medicine, Transfusion Medicine Service, Hematopoietic Progenitor Cell Laboratory, University of North Carolina at Chapel Hill, 101 Manning Drive, Suite C3162, Chapel Hill, NC 27514, USA
| | - Vijay S Gorantla
- Departments of Surgery, Ophthalmology and Bioengineering, US Air Force, Wake Forest Institute for Regenerative Medicine, Wake Forest Baptist Medical Center, Richard H. Dean Biomedical Building, 391 Technology Way, Winston Salem, NC 27101, USA.
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4
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Resende CB, Rezende BM, Bernardes PTT, Teixeira GM, Teixeira MM, Pinho V, Bittencourt H. Alemtuzumab as graft-versus-host disease (GVHD) prophylaxis strategy in a developing country: lower rate of acute GVHD, increased risk of cytomegalovirus reactivation. ACTA ACUST UNITED AC 2017; 50:e5566. [PMID: 28198910 PMCID: PMC5343562 DOI: 10.1590/1414-431x20165566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 12/07/2016] [Indexed: 01/30/2023]
Abstract
Acute graft-versus-host disease (aGVHD) and cytomegalovirus reactivation are
important complications after allogeneic stem cell transplantation (alloHSCT). Here,
we evaluated the impact of treatment with alemtuzumab on the occurrence of aGVHD,
cytomegalovirus reactivation and survival after alloHSCT. This was a prospective
cohort study conducted at the allo-HSCT unit of Hospital das Clínicas, Universidade
Federal de Minas Gerais, Brazil, from January 2009 to December 2011. Fifty-seven
patients who underwent alloHSCT were included. Forty-five (79%) patients had a
malignant disease. Alemtuzumab was administered before the conditioning regimen at a
dose of 1 mg/kg in children and 30 mg/day for 2 days in adults or children weighing
more than 40 kg (a total dose of 60 mg) with a non-malignant disease or patients with
a malignant disease and high-risk for GVHD mortality. Alemtuzumab was used in 23
(40%) patients, of whom 17 received a reduced-intensity conditioning. Eleven patients
presented aGVHD (grade 2–4) and only 1 of them received alemtuzumab. Cumulative
incidence of aGVHD (grade 2–4) at day 100 after transplantation (D+100) was 4 for
patients receiving alemtuzumab and 29% for patients not receiving alemtuzumab.
Cumulative incidence of cytomegalovirus reactivation for patients receiving or not
alemtuzumab was 62 and 38%, respectively. Sixteen patients died in the first 100 days
after alloHSCT, most of them due to bacterial sepsis. Only 2 patients died of aGVHD
until D+100. Overall survival was 50% without any impact of alemtuzumab. Alemtuzumab
effectively controlled aGVHD but increased the risk of cytomegalovirus reactivation
without improving survival.
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Affiliation(s)
- C B Resende
- Laboratório de Resolução da Resposta Inflamatória, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.,Unidade de Transplantes e Serviço de Hematologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - B M Rezende
- Laboratório de Resolução da Resposta Inflamatória, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - P T T Bernardes
- Laboratório de Resolução da Resposta Inflamatória, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - G M Teixeira
- Unidade de Transplantes e Serviço de Hematologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - M M Teixeira
- Laboratório de Imunofarmacologia, Departamento de Bioquímica e Farmacologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - V Pinho
- Laboratório de Resolução da Resposta Inflamatória, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - H Bittencourt
- Hematology-Oncology Division, C.H.U. Saint-Justine, University of Montreal, Montreal, QC, Canada
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Neumann T, Schneidewind L, Thiele T, Schulze M, Klenner AF, Busemann C, Pink D, Greinacher A, Dölken G, Krüger WH. Reduced platelet transfusions and earlier platelet engraftment using alemtuzumab-based conditioning regimen in allogeneic stem cell transplantation. J Cancer Res Clin Oncol 2016; 142:1091-7. [PMID: 26779644 DOI: 10.1007/s00432-016-2114-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 01/04/2016] [Indexed: 11/24/2022]
Abstract
PURPOSE In patients undergoing allogeneic stem cell transplantation, conditioning regimens containing alemtuzumab instead of anti-thymocyte globulin (ATG) may result in an earlier platelet engraftment and a reduced number of platelet transfusions. METHODS We performed a retrospective, single-center, case-control study analyzing time to engraftment and transfusion needs using alemtuzumab in comparison with ATG as part of conditioning protocol. RESULTS Median values for time to platelet engraftment, number of transfused platelet concentrates and number of transfused red cell concentrates were 12 versus 19.5 days (p < 0.001), 2 versus 14 (p < 0.001) and 6 versus 14.5 (p = 0.003) in the alemtuzumab and ATG group. Time to leukocyte engraftment did not differ with median 15 days in both groups. Patients in the ATG group showed a significant higher decrease in platelet count during conditioning (68 vs. 29 %, p = 0.001), leading to significant lower median platelet counts at the day of stem cell infusion (38 vs. 95.5 Gpt/l, p = 0.008), and higher values for median C-reactive protein after first antibody infusion (69.0 vs. 43.6 mg/l, p = 0.001) compared with alemtuzumab group. Test for significance was done by using Wilcoxon rank-sum test. Subgroup analysis considering the type of ATG used (Thymoglobulin vs. ATG Fresenius) revealed that differences between alemtuzumab and ATG group were more due to effects of ATG Fresenius than Thymoglobulin. CONCLUSIONS The use of alemtuzumab in comparison with ATG as part of the conditioning regimen may be an approach to reduce the number of transfused platelet and red cell concentrates after allogeneic stem cell transplantation.
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Affiliation(s)
- Thomas Neumann
- Department of Hematology, Oncology, Transplantation, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany.
| | - Laila Schneidewind
- Department of Urology, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
| | - Thomas Thiele
- Institute of Immunology and Transfusion Medicine, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
| | - Meike Schulze
- Department of Hematology, Oncology, Transplantation, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
| | - Anne F Klenner
- Department of Hematology, Oncology, Transplantation, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
| | - Christoph Busemann
- Department of Hematology, Oncology, Transplantation, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
| | - Daniel Pink
- Department of Hematology, Oncology, HELIOS Klinikum Bad Saarow, Bad Saarow, Germany
| | - Andreas Greinacher
- Institute of Immunology and Transfusion Medicine, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
| | - Gottfried Dölken
- Department of Hematology, Oncology, Transplantation, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
| | - William H Krüger
- Department of Hematology, Oncology, Transplantation, University Medical Center, Ernst-Moritz-Arndt University, Greifswald, Germany
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Impact of serotherapy on immune reconstitution and survival outcomes after stem cell transplantations in children: thymoglobulin versus alemtuzumab. Biol Blood Marrow Transplant 2014; 21:473-82. [PMID: 25485863 DOI: 10.1016/j.bbmt.2014.11.674] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 11/13/2014] [Indexed: 01/24/2023]
Abstract
The outcome of allogeneic hematopoietic stem cell transplantation (HSCT) is strongly affected by the kinetics of reconstitution of the immune system. This study compared the effects of antithymocyte globulin (ATG) and alemtuzumab on various outcome parameters after HSCT. The study cohort consisted of 148 children, with a median age of 9.6 years (range, .4 to 19.0), who underwent HSCT for malignant and benign hematological disorders in a single HSCT unit. Conditioning included ATG (n = 110) or alemtuzumab (n = 38). Cox proportional hazard regression analysis showed that alemtuzumab significantly delayed the recovery of CD3(+) T cells and CD4(+)as well as CD8(+) T cell subsets (P ≤ .001) and natural killer (NK) cells (P = .008) compared with ATG. In both ATG- and alemtuzumab-treated patients, shorter drug exposure lead to significantly faster recovery of T cells. Alemtuzumab was associated with lower donor chimerism 3 and 6 months after transplantation and a higher risk of disease relapse (P = .001). The overall survival and event-free survival risks were significantly lower for alemtuzumab-treated patients (P = .020 and P < .001, respectively). Patients who received alemtuzumab showed a trend to lower risk of acute graft-versus-host disease, more human adenovirus, and less Epstein-Barr virus reactivations compared with patients who received ATG. These data indicate that children treated with alemtuzumab as part of the conditioning regimen have a slower T cell and NK cell reconstitution compared with those treated with ATG, which compromises the overall and event-free survival. Prolonged length of lympholytic drug exposure delayed the T cell recovery in both ATG- and alemtuzumab-treated patients. Therefore, we recommend detailed pharmacokinetic/pharmacodynamic (PK/PD) analyses in a larger cohort of patients to develop an algorithm aiming at optimization of the serotherapy containing conditioning regimen.
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7
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Low-dose alemtuzumab vs. standard policy for prevention of graft-versus-host disease in unrelated and related allogeneic stem cell transplantation-a matched pair analysis. Ann Hematol 2013; 92:945-52. [PMID: 23463451 DOI: 10.1007/s00277-013-1714-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 02/19/2013] [Indexed: 10/27/2022]
Abstract
Antibody-mediated in vivo T cell depletion is common prior to unrelated (URD) or mismatched allogeneic stem cell transplantation (alloSCT) and optional in HLA-identical sibling (FAM) alloSCT. While anti-thymocyte globulin (ATG) is the current standard, alemtuzumab is an alternative. The optimal dose of alemtuzumab has not been defined. This retrospective analysis compares low-dose alemtuzumab with ATG in URD alloSCT and with no antibody in FAM alloSCT. Twenty-eight patients treated with alemtuzumab (10 mg; HLA mismatch, 20 mg) were matched to 28 patients who have either received ATG (URD) or no antibody (noAB) according to disease, disease stage, age, transplant type and risk state. Both groups were compared for engraftment, outcome, disease-free (DFS) and overall survival (OS), graft-versus-host disease (GvHD), freedom from GvHD (ffGvHD) and transplant-related mortality (TRM). No significant differences were found between the groups for leukocyte engraftment, GvHD, ffGvHD, TRM, DFS and OS. There was a trend for reduction of cGvHD by alemtuzumab (p = 0.05). A transplant-type stratified subanalysis consolidated equivalency of alemtuzumab and ATG in URD-SCT and indicates possible superiority of low-dose alemtuzumab compared to noAB in FAM-SCT. Low-dose alemtuzumab, as part of conditioning regimen prior to alloSCT, is safe and comparable to standard ATG. Prospective trials, particularly comparing alemtuzumab vs. noAB in FAM alloSCT, should be conducted.
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Abstract
The feasibility of stem cell transplantation across the major histocompatibility barrier-as in haploidentical stem cell transplantation-has been proved for some time in several studies. The main limitations include a higher graft failure rate, delayed immune reconstitution after transplantation with high rates of life-threatening infections, a higher incidence of post-transplant lymphoproliferative disease, and severe acute and chronic graft-versus-host disease. In an attempt to reduce the transplant-related morbidity/mortality, several techniques had been evaluated involving conditioning regimen intensity, graft engineering, post-transplant cellular therapy and immunosuppression. This review will describe the current situation. It will also discuss initiatives and strategies to overcome the limitations associated with transplant across the MHC barrier.
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Affiliation(s)
- Amr Ahmed Nassar
- King Abdullah Medical City, Mecca, Western Province, Saudi Arabia.
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9
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Abstract
Acute graft-versus-host disease (GVHD) is a leading cause of non-relapse mortality following allogeneic haematopoietic cell transplantation. Attempts to improve treatment response in clinically-established GVHD have not improved overall survival, often due to the increased risk of infectious complications. Alternative approaches to decrease GVHD-related morbidity and mortality have focused on the ability to predict GVHD prior to clinical manifestation in an effort to provide an opportunity to abort GVHD development, and to gain new insights into GVHD pathophysiology. This review outlines the research efforts to date that have identified clinical and laboratory-based factors that are predictive of acute GVHD and describes future directions in developing algorithms that will improve the ability to predict the development of clinically relevant GVHD.
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Affiliation(s)
- Andrew C Harris
- Blood and Marrow Transplant Program, Department of Pediatrics, C.S. Mott Children's Hospital, University of Michigan, Ann Arbor, MI 48109, USA
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Toor AA, Sabo RT, Chung HM, Roberts C, Manjili RH, Song S, Williams DC, Edmiston W, Gatesman ML, Edwards RW, Ferreira-Gonzalez A, Clark WB, Neale MC, McCarty JM, Manjili MH. Favorable outcomes in patients with high donor-derived T cell count after in vivo T cell-depleted reduced-intensity allogeneic stem cell transplantation. Biol Blood Marrow Transplant 2012; 18:794-804. [PMID: 22005648 PMCID: PMC4932864 DOI: 10.1016/j.bbmt.2011.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 10/10/2011] [Indexed: 12/13/2022]
Abstract
Patients with hematologic malignancies were conditioned using a rabbit antithymocyte globulin-based reduced-intensity conditioning regimen for allogeneic stem cell transplantation. Donor-derived CD3(+) cell count (ddCD3), a product of CD3(+) cell chimerism and absolute CD3(+) cell count, when <110/μL at 8 weeks post-stem cell transplantation predicted a high risk of sustained mixed chimerism and relapse. Alternatively, patients with a higher ddCD3 developed graft-versus-host disease more frequently, and when partially chimeric, had higher rates of conversion to full donor chimerism after withdrawal of immunosuppression. Early data from our small cohort of patients indicate that ddCD3 at 8 weeks may be used to guide decisions regarding withdrawal of immunosuppression and administration of donor lymphocyte infusion in partially T cell-depleted reduced-intensity regimens.
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Affiliation(s)
- Amir A Toor
- Bone Marrow Transplant Program, Department of Internal Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298-0157, USA.
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Place des anticorps monoclonaux dans la prophylaxie et le traitement de la maladie aiguë et chronique du greffon contre l’hôte en 2011. Bull Cancer 2011; 98:889-99. [DOI: 10.1684/bdc.2011.1410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Poiré X, van Besien K. Alemtuzumab in allogeneic hematopoetic stem cell transplantation. Expert Opin Biol Ther 2011; 11:1099-111. [PMID: 21702703 DOI: 10.1517/14712598.2011.592824] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION With the use of reduced-intensity conditioning (RIC), early toxicity of allogeneic stem cell transplantation (SCT) has been much reduced. Graft-versus-host disease (GvHD) causes morbidities and mortality. Alemtuzumab is a mAb directed against CD52. When administered prior to transplant, it leads to T-cell depletion. Incorporation of alemtuzumab in RIC results in low rates of GvHD and treatment-related mortality (TRM) in haematological diseases, even in the setting of mismatched-donor transplantation. AREAS COVERED The use of alemtuzumab for GvHD prophylaxis in SCT. The benefit of alemtuzumab-based conditioning is partially offset by increased disease relapse due to impaired graft-versus-tumor effect (GvT) and by slower immune reconstitution, necessitating special precautions. While GvHD is prevented with alemtuzumab, post-SCT interventions are often required. Most studies find that alemtuzumab-based conditioning results in decreased chronic GvHD and TRM, but also in decreased progression-free survival. Overall survival after 3 - 5 years is usually equivalent and quality of life may be improved because of a lower incidence of sequelae of chronic GvHD. Many aspects of alemtuzumab treatment are under investigation. EXPERT OPINION Alemtuzumab reduces GvHD and TRM after SCT. Use of alemtuzumab requires awareness and strict management of the risk of opportunistic infections and of an increased risk of disease recurrence.
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Affiliation(s)
- Xavier Poiré
- Section of Hematology, Department of Medicine, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, 10 avenue Hippocrate, 1200 Brussels, Belgium
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