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Arcuri LJ, Ribeiro AAF, Hamerschlak N, Kerbauy MN. Posttransplant cyclophosphamide beyond haploidentical transplantation. Ann Hematol 2024; 103:1483-1491. [PMID: 37261557 DOI: 10.1007/s00277-023-05300-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 05/26/2023] [Indexed: 06/02/2023]
Abstract
Posttransplant cyclophosphamide (PTCy) has practically revolutionized haploidentical (Haplo) hematopoietic cell transplantation (HCT). Comparisons between Haplo with PTCy and unrelated donor (URD) with conventional graft-versus-host disease (GVHD) prophylaxis have shown comparable overall survival with lower incidences of GVHD with Haplo/PTCy and led to the following question: is it PTCy so good that can be successfully incorporated into matched related donor (MRD) and URD HCT? In this review, we discuss other ways of doing PTCy, PTCy in peripheral blood haploidentical transplants, PTCy in the context of matched related and matched unrelated donors, PTCy with mismatched unrelated donors, and PTCy following checkpoint inhibitor treatment. PTCy is emerging as a new standard GVHD prophylaxis in haploidentical, HLA-matched, and -mismatched HCT.
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Affiliation(s)
- Leonardo Javier Arcuri
- Academic Research Organization, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627/701, São Paulo, SP, 05652-900, Brazil.
- Bone Marrow Transplantation Unit, Insituto Nacional de Cancer, Rio de Janeiro, Brazil.
| | | | - Nelson Hamerschlak
- Bone Marrow Transplantation Unit, Hospital Israelita Albert Einstein, São Paulo, Brazil
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Duléry R, Brissot E, Mohty M. Combining post-transplant cyclophosphamide with antithymocyte globulin for graft-versus-host disease prophylaxis in hematological malignancies. Blood Rev 2023; 62:101080. [PMID: 37085459 DOI: 10.1016/j.blre.2023.101080] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 04/10/2023] [Indexed: 04/23/2023]
Abstract
In search of an ideal partner or alternative to conventional immunosuppressive agents, rabbit anti-thymocyte globulin (ATG) and, more recently, post-transplant cyclophosphamide (PT-Cy) have both emerged as valid and efficient options for preventing graft-versus-host disease (GvHD). To further reduce the risk of GvHD, strategies combining ATG and PT-Cy have recently been investigated. In a haploidentical setting, retrospective studies suggest that combining PT-Cy and ATG may result in a lower incidence of chronic GvHD without increasing the risks of infection or relapse, when compared to PT-Cy without ATG. In haploidentical or unrelated donor settings, adding reduced doses of PT-Cy to ATG may reduce the risk of acute and chronic GvHD and improve survival, particularly GvHD-free, relapse-free survival (GRFS), when compared to ATG without PT-Cy. Overall, the combination of PT-Cy and ATG is a safe and promising approach for patients with hematological malignancies undergoing allogeneic hematopoietic stem cell transplantation (HSCT).
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Affiliation(s)
- Rémy Duléry
- Sorbonne University, Department of Clinical Hematology and Cellular Therapy, Saint Antoine Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; INSERM, UMRs 938, Centre de recherche Saint Antoine (CRSA), Paris, France
| | - Eolia Brissot
- Sorbonne University, Department of Clinical Hematology and Cellular Therapy, Saint Antoine Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; INSERM, UMRs 938, Centre de recherche Saint Antoine (CRSA), Paris, France
| | - Mohamad Mohty
- Sorbonne University, Department of Clinical Hematology and Cellular Therapy, Saint Antoine Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; INSERM, UMRs 938, Centre de recherche Saint Antoine (CRSA), Paris, France.
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O'Donnell PV, Jones RJ. The development of post-transplant cyclophosphamide: Half a century of translational team science. Blood Rev 2023; 62:101034. [PMID: 36435690 PMCID: PMC11001251 DOI: 10.1016/j.blre.2022.101034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 10/19/2022] [Accepted: 11/09/2022] [Indexed: 11/14/2022]
Abstract
Close HLA matching of donors and recipients has been the dogma for successful allogeneic blood or marrow transplantation (alloBMT), to limit the complications of graft-versus-host disease (GVHD). However, many patients in need, especially those within certain ethnic groups such as those of African-Americans and Hispanics, remain unable to find a match even with the increased availability of unrelated donors. Over half a century ago, investigators at Johns Hopkins found that cyclophosphamide's immunosuppressive properties made it the ideal replacement for total body irradiation in alloBMT conditioning regimens. They also found it to be the best chemotherapeutic for preventing GVHD in animal models, but its cytotoxic properties scared them from using it clinically in the high doses successful in animal models. Subsequent work showed that cyclophosphamide spared hematopoietic and other stem cells including memory lymphocytes, prompting re-examination at high doses for GVHD prophylaxis. Animal and extensive human studies demonstrated that high-dose post-transplantation cyclophosphamide (PTCy) effectively and safely limited GVHD such that mismatched transplants are now considered standard-of-care worldwide. The beneficial effects of PTCy on GVHD appears to be independent of donor type, graft source, or conditioning regimen intensity.
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Affiliation(s)
- Paul V O'Donnell
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA, United States of America
| | - Richard J Jones
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, John Hopkins University, Baltimore, MD, United States of America.
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Nakamae H. Systematic overview of HLA-matched allogeneic hematopoietic cell transplantation with post-transplantation cyclophosphamide. Int J Hematol 2022; 116:465-481. [PMID: 35930118 DOI: 10.1007/s12185-022-03428-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 10/16/2022]
Abstract
The successful application of post-transplantation cyclophosphamide (PTCy) as graft-versus-host disease (GVHD) prophylaxis in HLA-haploidentical allogeneic hematopoietic cell transplantation (allo-HCT) led to the expansion of its application to HLA-matched related and unrelated allo-HCT. Notably, single-agent PTCy was found to be feasible for GVHD prevention in HLA-matched bone marrow transplantation. Single-agent PTCy prophylaxis was later attempted to control GVHD in HLA-matched peripheral blood stem cell transplantation (PBSCT), but this approach was inadequate to alleviate GVHD as evidenced by the high incidence of severe GVHD and/or non-relapse mortality. Therefore, various combinations of immunosuppressants with PTCy have been explored to identify the optimal drug combination that would efficiently prevent GVHD in HLA-matched PBSCT. A recent murine study helped clarify the putative mechanism underlying the activity of PTCy, demonstrating that PTCy impairs the proliferation and function of alloreactive T cells from the donor, but does not eliminate alloreactive T cells altogether. In addition, imbalanced reconstitution of NK cell as well as T cells has been observed in HLA-haploidentical allo-HCT. Therefore, it remains unclear whether or not PTCy-containing GVHD prophylaxis should replace the classical GVHD prophylaxis regimen in the HLA-matched setting, and convincing evidence supporting the benefits of PTCy is needed.
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Affiliation(s)
- Hirohisa Nakamae
- Hematology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan.
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Salas MQ, Atenafu EG, Law AD, Lam W, Pasic I, Chen C, Kim DDH, Michelis FV, Gerbitz A, Lipton JH, Mattsson J, Kumar R, Viswabandya A. Lower dose of ATG combined with post-transplant cyclophosphamide for HLA matched RIC alloHCT is associated with effective control of GVHD and less viral infections. Leuk Lymphoma 2021; 62:3373-3383. [PMID: 34435547 DOI: 10.1080/10428194.2021.1966781] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study compares the outcomes before and after reducing the ATG dose from 4.5 to 2 mg/kg, in a combination of PTCy and CsA for GVHD prevention, in 250 patients treated with HLA matched RIC PB-alloHCT (70% received 4.5 mg/kg and 30% received 2 mg/kg). The incidences of grade II-IV and III-IV aGVHD at day +100, and moderate/severe cGVHD at 1-year were 12.6% vs. 20% (p = 0.431), 3.6% vs. 4.5% (p = 0.935), and 10.9% vs. 26.1% (p = 0.480), respectively. PTLD (9.1% vs. 1.3%, p = 0.026) and viral infections (30.3% vs. 12%; p = 0.001) were lower for those treated with 2 mg/kg of ATG. The reduction of the ATG dose resulted in a comparable OS (2-year: 64.7% vs. 64.7%), GRFS (2-year: 48.0% vs. 44.5%), RFS (2-year: 57.0% vs. 62.0%), and NRM (2-year: 17.8 vs. 14.9). The use of (2 mg/kg) ATG-PTCy-CsA for HLA matched RIC alloHCT results in lower viral infections, and incomparable GVHD preventive effect and survival rates.
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Affiliation(s)
- Maria Queralt Salas
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada.,Bone Marrow Transplant Unit, Department of Hematology, IDIBAPS, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Eshetu G Atenafu
- Department of Biostatistics, Princes Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Arjun Datt Law
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Wilson Lam
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Ivan Pasic
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Carol Chen
- Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Dennis Dong Hwan Kim
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Fotios V Michelis
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Armin Gerbitz
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Jeffrey Howard Lipton
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Jonas Mattsson
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Rajat Kumar
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Auro Viswabandya
- Department of Medicine, Section of Medical Oncology and Hematology, University of Toronto, Toronto, Canada.,Hans Messner Allogeneic Blood and Marrow Transplantation Program, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
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