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Sykora KW, Beier R, Schulz A, Cesaro S, Greil J, Gozdzik J, Sedlacek P, Bader P, Schulte J, Zecca M, Locatelli F, Gruhn B, Reinhardt D, Styczynski J, Piras S, Fagioli F, Bonanomi S, Caniglia M, Li X, Baumgart J, Kehne J, Mielcarek-Siedziuk M, Kalwak K. Treosulfan vs busulfan conditioning for allogeneic bmt in children with nonmalignant disease: a randomized phase 2 trial. Bone Marrow Transplant 2024; 59:107-116. [PMID: 37925531 PMCID: PMC10781637 DOI: 10.1038/s41409-023-02135-9] [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: 08/16/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 11/06/2023]
Abstract
Optimal conditioning prior to allogeneic hematopoietic stem cell transplantation for children with non-malignant diseases is subject of ongoing research. This prospective, randomized, phase 2 trial compared safety and efficacy of busulfan with treosulfan based preparative regimens. Children with non-malignant diseases received fludarabine and either intravenous (IV) busulfan (4.8 to 3.2 mg/kg/day) or IV treosulfan (10, 12, or 14 g/m2/day). Thiotepa administration (2 × 5 mg/kg) was at the investigator's discretion. Primary endpoint was freedom from transplantation (treatment)-related mortality (freedom from TRM), defined as death between Days -7 and +100. Overall, 101 patients (busulfan 50, treosulfan 51) with at least 12 months follow-up were analyzed. Freedom from TRM was 90.0% (95% CI: 78.2%, 96.7%) after busulfan and 100.0% (95% CI: 93.0%, 100.0%) after treosulfan. Secondary outcomes (transplantation-related mortality [12.0% versus 3.9%]) and overall survival (88.0% versus 96.1%) favored treosulfan. Graft failure was more common after treosulfan (n = 11), than after busulfan (n = 2) while all patients were rescued by second procedures except one busulfan patient. CTCAE Grade III adverse events were similar in both groups. This study confirmed treosulfan to be an excellent alternative to busulfan and can be safely used for conditioning treatment in children with non-malignant disease.
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Affiliation(s)
- Karl-Walter Sykora
- Hannover Medical School, Ped. Haematology and Oncology, Hannover, Germany
| | - Rita Beier
- Hannover Medical School, Ped. Haematology and Oncology, Hannover, Germany.
| | - Ansgar Schulz
- Department of Pediatrics, University Medical Center Ulm, Ulm, Germany
| | - Simone Cesaro
- Pediatric Hematology Oncology, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | | | - Jolanta Gozdzik
- Jagiellonian University Medical College, Center of Transplantation University Children's Hospital in Cracow, Cracow, Poland
| | | | - Peter Bader
- University Hospital Frankfurt, Frankfurt Main, Germany
| | | | - Marco Zecca
- Children's Hospital San Matteo, Pavia, Italy
| | | | - Bernd Gruhn
- Department of Pediatrics, Jena University Hospital, Jena, Germany
| | | | - Jan Styczynski
- Department of Pediatric Hematology and Oncology, University Hospital, Collegium Medicum UMK, Bydgoszcz, Poland
| | - Simona Piras
- Children's Hospital Antonio Cao, Cagliari, Italy
| | | | | | | | | | | | | | | | - Krzysztof Kalwak
- Department of Pediatric Hematology, Oncology and BMT, Wroclaw Medical University, Wroclaw, Poland
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Galán V, Beléndez C, Echecopar C, Estival P, Sissini L, Olivas R, Bueno D, Molina B, Fuentes C, Regueiro A, Benítez I, Plaza M, Margarit A, Rifón J, Pascual A, Palomo P, Urtasun A, Fuster JL, Díaz de Heredia C, Fernández Navarro JM, González-Vicent M, Ruz B, Pérez-Martínez A. Treosulfan-Based Conditioning Regimen In Pediatric Hematopoietic Stem Cell Transplantation: A Retrospective Analysis on Behalf of the Spanish Group for Hematopoietic Transplantation and Cellular Therapy (GETH-TC). Transplant Cell Ther 2023; 29:702.e1-702.e11. [PMID: 37595686 DOI: 10.1016/j.jtct.2023.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/24/2023] [Accepted: 08/13/2023] [Indexed: 08/20/2023]
Abstract
Increasing data on treosulfan-based conditioning regimens before hematopoietic stem cell transplantation (HSCT) demonstrate the consistent benefits of this approach, particularly regarding acute toxicity. This study aimed to describe the results of treosulfan-based conditioning regimens in children, focusing on toxicity and outcomes when used to treat both malignant and nonmalignant diseases. This retrospective observational study of pediatric patients treated in Spain with treosulfan-based conditioning regimens before HSCT was based on data collection from electronic clinical records. We studied a total of 160 treosulfan-based conditioning HSCTs to treat nonmalignant diseases (n = 117) or malignant diseases (n = 43) in 158 children and adolescents. The median patient age at HSCT was 5.1 years (interquartile range, 2 to 10 years). The most frequent diagnoses were primary immunodeficiency (n = 42; 36%) and sickle cell disease (n = 42; 36%) in the nonmalignant disease cohort and acute lymphoblastic leukemia (n = 15; 35%) in the malignant disease cohort. Engraftment occurred in 97% of the patients. The median times to neutrophil engraftment (17 days versus 14 days; P = .008) and platelet engraftment (20 days versus 15 days; P = .002) were linger in the nonmalignant cohort. The 1-year cumulative incidence of veno-occlusive disease was 7.98% (95% confidence interval [CI], 4.6% to 13.6%), with no significant differences between cohorts. The 1-year cumulative incidence of grade III-IV acute graft-versus-host disease (GVHD) was higher in the malignant disease cohort (18% versus 3.2%; P = .011). Overall, the malignant cohort had both a higher total incidence (9% versus 3%; P < .001) and a higher 2-year cumulative incidence (16% versus 1.9%; P < .001) of total chronic GVHD. The 2-year cumulative transplantation-related mortality was 15%, with no difference between the 2 cohorts. The 5-year overall survival was 80% (95% CI, 72% to 86%) and was higher in the nonmalignant cohort (87% versus 61%; P = .01). The 2-year cumulative incidence of relapse was 25% in the malignant cohort. The 5-year cumulative GVHD-free, relapse-free survival rate was 60% (95% CI, 51% to 70%) and was higher in the nonmalignant cohort (72% versus 22%; P < .001). A treosulfan-based radiation-free conditioning regimen is feasible, achieving a high engraftment rate and 5-year overall survival, and is an emerging option for the first HSCT in nonmalignant diseases.
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Affiliation(s)
- Victor Galán
- Pediatric Hemato-Oncology, La Paz University Hospital, idiPAZ Research Institute, Madrid, Spain; Pediatric Hemato-Oncology, La Paz University Hospital, Madrid, Spain
| | | | - Carlos Echecopar
- Pediatric Hemato-Oncology, La Paz University Hospital, Madrid, Spain
| | | | - Luisa Sissini
- Pediatric Hemato-Oncology, La Paz University Hospital, idiPAZ Research Institute, Madrid, Spain
| | | | - David Bueno
- Pediatric Hemato-Oncology, La Paz University Hospital, idiPAZ Research Institute, Madrid, Spain; Pediatric Hemato-Oncology, La Paz University Hospital, Madrid, Spain
| | - Blanca Molina
- Pediatric Hemato-Oncology, Hospital Niño Jesus, Madrid, Spain
| | | | - Alexandra Regueiro
- Pediatric Hemato-Oncology, University of Santiago Clinical Hospital, Santiago de Compostela, Spain
| | - Isabel Benítez
- Pediatric Hemato-Oncology, Hospital Vall d'Hebron, Barcelona, Spain
| | - Mercedes Plaza
- Pediatric Hemato-Oncology, Virgen de la Arrixaca University Clinical Hospital, Biomedical Research Institute of Murcia (IMIB), El Palmar, Spain
| | - Adriana Margarit
- Pediatric Hemato-Oncology, Hospital Sant Joan de Déu, Barcelona, Spain
| | - José Rifón
- Clínica Universitaria de Navarra, Pamplona, Spain
| | - Antonia Pascual
- Pediatric Hemato-Oncology, Hospital Carlos Haya, Málaga, Spain
| | | | - Andrea Urtasun
- Pediatric Hemato-Oncology, Hospital Sant Joan de Déu, Barcelona, Spain
| | - José Luis Fuster
- Pediatric Hemato-Oncology, Virgen de la Arrixaca University Clinical Hospital, Biomedical Research Institute of Murcia (IMIB), El Palmar, Spain
| | | | | | | | - Beatriz Ruz
- La Paz University Hospital, Institute of Medical and Molecular Genetics (INGEMM), idiPAZ Research Institute, Madrid, Spain
| | - Antonio Pérez-Martínez
- Pediatric Hemato-Oncology, La Paz University Hospital, idiPAZ Research Institute, Madrid, Spain; Pediatric Hemato-Oncology, La Paz University Hospital, Madrid, Spain; Pediatric Hemato-Oncology, La Paz University Hospital, idiPAZ Research Institute, Pediatric Department, Autonomous University of Madrid, Madrid, Spain.
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Cuvelier GDE, Paulson K, Bow EJ. Updates in hematopoietic cell transplant and cellular therapies that enhance the risk for opportunistic infections. Transpl Infect Dis 2023; 25 Suppl 1:e14101. [PMID: 37461887 DOI: 10.1111/tid.14101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/21/2023] [Accepted: 06/28/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Infectious disease physicians may be asked to evaluate and manage a variety of infections in immunocompromised hosts undergoing hematopoietic cell transplant (HCT) and cellular therapies. Over the last decade, several advances in cellular therapy have occurred, with implications for the types of infectious complications that may be seen. AIMS The purpose of this review is to update the infectious disease physician on newer advances in HCT and cellular therapy, including haploidentical transplant, expanding indications for transplant in older individuals and children, and chimeric antigen receptor T-cells. We will review how these advances might influence infectious disease complications following HCT. We will also provide a perspective that infectious disease physicians can use to evaluate the degree of immune suppression in an individual patient to help determine the type of infections that may be encountered.
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Affiliation(s)
- Geoffrey D E Cuvelier
- Department of Paediatrics and Child Health, Section of Paediatric Haematology/Oncology-BMT, Max Rady College of Medicine, the University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Paediatric Haematology/Oncology-BMT, CancerCare Manitoba, Winnipeg, Manitoba, Canada
- Manitoba Blood and Marrow Transplant Programme, CancerCare Manitoba, Winnipeg, Manitoba, Canada
| | - Kristjan Paulson
- Manitoba Blood and Marrow Transplant Programme, CancerCare Manitoba, Winnipeg, Manitoba, Canada
- Section of Haematology/Oncology, Department of Internal Medicine, Max Rady College of Medicine, the University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Medical Oncology and Haematology, CancerCare Manitoba, Winnipeg, Manitoba, Winnipeg, Manitoba, Canada
| | - Eric J Bow
- Manitoba Blood and Marrow Transplant Programme, CancerCare Manitoba, Winnipeg, Manitoba, Canada
- Section of Haematology/Oncology, Department of Internal Medicine, Max Rady College of Medicine, the University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Medical Oncology and Haematology, CancerCare Manitoba, Winnipeg, Manitoba, Winnipeg, Manitoba, Canada
- Section of Infectious Diseases, Department of Internal Medicine, Max Rady College of Medicine, The University of Manitoba, Winnipeg, Manitoba, Canada
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Kim SH, Ji YS, Yun J, Choi SH, Lim SH, Kim CK, Park SK. Is Treosulfan-Based Conditioning Attractive as a Reduced-Intensity Conditioning Regimen in Korea? J Korean Med Sci 2023; 38:e281. [PMID: 37698206 PMCID: PMC10497350 DOI: 10.3346/jkms.2023.38.e281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/11/2023] [Indexed: 09/13/2023] Open
Abstract
BACKGROUND Allogeneic hematopoietic stem cell transplantation (HSCT) was not actively performed in elderly acute myeloid leukemia (AML) or myelodysplastic syndrome patients who are at a high-risk based on hematopoietic cell transplantation-specific comorbidity index (HCT-CI). The advent of reduced-intensity conditioning (RIC) regimens has made HSCT applicable in this population. However, the selection of appropriate conditioning is a major concern for the attending physician. The benefits of combination of treosulfan and fludarabine (Treo/Flu) have been confirmed through many clinical studies. Korean data on treosulfan-based conditioning regimen are scarce. METHODS A retrospective study was conducted to compare the clinical outcomes of allogeneic HSCT using RIC between 13 patients receiving Treo/Flu and 39 receiving busulfan/fludarabine (Bu/Flu). RESULTS In terms of conditioning-related complications, the frequency of ≥ grade 2 nausea or vomiting was significantly lower and the duration of symptoms was shorter in the Treo/Flu group than in the Bu/Flu group. The incidence of ≥ grade 2 mucositis tended to be lower in the Treo/Flu group. In the analysis of transplant outcomes, all events of acute graft versus host disease (GVHD) and ≥ grade 2 acute GVHD occurred more frequently in the Treo/Flu group. The frequency of Epstein-Barr virus reactivation was significantly higher in the Treo/Flu group (53.8% vs. 23.1%, P = 0.037). Non-relapse mortality (NRM) at 12 months was higher in the Treo/Flu group (30.8% vs. 7.7%, P = 0.035). Significant prognostic factors included disease type, especially secondary AML, disease status and high-risk based on HCT-CI, ≥ grade 2 acute GVHD, and cases requiring ≥ 2 immunosuppressive drugs for treating acute GVHD. In the comparison of survival outcomes according to conditioning regimen, the Bu/Flu group seemed to show better results than the Treo/Flu group (60% vs. 46.2%, P = 0.092 for overall survival; 56.4% vs. 38.5%, P = 0.193 for relapse-free survival). In additional analysis for only HCT-CI high-risk groups, there was no difference in transplant outcomes except that the Treo/Flu group tended to have a higher NRM within one year after transplantation. Survival outcomes of both groups were similar. CONCLUSION This study suggests that Treo/Flu conditioning may be an alternative to Bu/Flu regimen in elderly patients with high-risk who are not suitable for standard conditioning.
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Affiliation(s)
- Se Hyung Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Young Sok Ji
- Division of Hemato-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jina Yun
- Division of Hemato-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Seong Hyeok Choi
- Division of Hemato-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Sung Hee Lim
- Division of Hemato-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Chan Kyu Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Seong Kyu Park
- Division of Hemato-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.
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Gavriilaki E, Labopin M, Sakellari I, Salmenniemi U, Yakoub-Agha I, Potter V, Berceanu A, Rambaldi A, Hilgendorf I, Kröger N, Mielke S, Zuckerman T, Sanz J, Busca A, Ozdogu H, Anagnostopoulos A, Savani B, Giebel S, Bazarbachi A, Spyridonidis A, Nagler A, Mohty M. Comparative study of treosulfan plus Fludarabine (FT14) with busulfan plus Fludarabine (FB4) for acute myeloid leukemia in first or second complete remission: An analysis from the European Society for Blood and Marrow Transplantation (EBMT) Acute Leukemia Working Party (ALWP). Bone Marrow Transplant 2022; 57:1803-1809. [PMID: 36138068 DOI: 10.1038/s41409-022-01830-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 08/26/2022] [Accepted: 09/08/2022] [Indexed: 11/10/2022]
Abstract
Different doses of treosulfan plus fludarabine have shown advantage over reduced intensity regimens. However, data comparing higher doses of treosulfan to myeloablative busulfan are limited. Thus, we compared outcomes between FT14 (fludarabine 150/160 mg/m2 and treosulfan 42 g/m2, or FT14) over FB4 (fludarabine 150/160 mg/m2 and busulfan 12.8 mg/kg). We retrospectively studied patients from European Society for Blood and Marrow Transplantation registry: a) adults diagnosed with acute myeloid leukemia (AML), b) recipients of first allogeneic hematopoietic stem cell transplantation (HSCT) from unrelated or sibling donor (2010-2020), c) HSCT at first or second complete remission, d) conditioning with FT14 or FB4. FT14 recipients (n = 678) were older, with higher rates of secondary AML, unrelated donors, peripheral blood grafts, and adverse cytogenetics, but lower percentage of female donor to male recipient compared to FB4 (n = 2025). Analysis was stratified on age. In patients aged < 55 years, FT14 was associated with higher relapse incidence (RI) and lower Leukemia-Free Survival (LFS). In patients aged≥55 years, acute GVHD CI was higher in FB4, without significant differences in other outcomes. Although FT14 has been used for higher-risk HSCT patients, our large real-world multicenter study suggests that FB4 is associated with better outcomes compared to FT14 in younger patients.
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Affiliation(s)
- Eleni Gavriilaki
- Hematology Department-BMT Unit, G Papanikolaou Hospital, Thessaloniki, Greece.
| | - Myriam Labopin
- Service d' Hématologie Clinique et Thérapie Cellulaire, Hospital Saint-Antoine, Sorbonne Université, Centre de Recherche Saint-Antoine (CRSA), Paris, France
| | - Ioanna Sakellari
- Hematology Department-BMT Unit, G Papanikolaou Hospital, Thessaloniki, Greece
| | - Urpu Salmenniemi
- HUCH Comprehensive Cancer Center, Stem Cell Transplantation Unit - Helsinki, Helsinki, Finland
| | | | - Victoria Potter
- Kings College Hospital, Dept. of Haematological Medicine, King's Denmark Hill Campus - London, London, UK
| | - Ana Berceanu
- Hopital Jean Minjoz, Service d'Hématologie - Besançon, Besançon, France
| | - Alessandro Rambaldi
- Department of Oncology and Hematology, University of Milan and Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Inken Hilgendorf
- Universitaetsklinikum Jena, Klinik für Innere Medizin II - Jena, Jena, Germany
| | - Nicolaus Kröger
- University Hospital Eppendorf, Bone Marrow Transplantation Centre - Hamburg, Hamburg, Germany
| | - Stephan Mielke
- Karolinska University Hospital, Dept. of Hematology - Stockholm, Stockholm, Sweden
| | - Tsila Zuckerman
- Rambam Medical Center, Dept. of Hematology & BMT - Haifa, Haifa, Israel
| | - Jaime Sanz
- University Hospital La Fe, Hematology Department - Valencia, Valencia, Spain
| | - Alessandro Busca
- S.S.C.V.D Trapianto di Cellule Staminali, A.O.U Citta della Salute e della Scienza di Torino, Torino, Italy
| | - Hakan Ozdogu
- Baskent University Hospital, Haematology Division, BMT Unit, Haematology Reserach Laboratory, Training & Medical - Adana, Adana, Turkey
| | | | - Bipin Savani
- Vanderbilt University Medical Center, Division of Hematology/ Oncology, Nashville, TN, USA
| | - Sebastian Giebel
- Maria Sklodowska-Curie Institute, Department of Bone Marrow Transplantation and Oncohematology, Oncology Center - Gliwice, Gliwice, Poland
| | - Ali Bazarbachi
- American University of Beirut, Medical Center, Department of Internal Medicine - Beirut, Beirut, Lebanon
| | - Alexandros Spyridonidis
- Department of Internal Medicine, Bone Marrow Transplantation Unit, University Hospital of Patras, Patras, Greece
| | - Arnon Nagler
- Chaim Sheba Medical Center, Dept. of Bone Marrow Transplantation - Tel-Hashomer, Tel-Hashomer, Israel
| | - Mohamad Mohty
- Service d' Hématologie Clinique et Thérapie Cellulaire, Hospital Saint-Antoine, Sorbonne Université, Centre de Recherche Saint-Antoine (CRSA), Paris, France
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6
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Olivas-Mazón R, Bueno D, Sisinni L, Mozo Y, Casado-Abad G, Pérez-Martínez A. A retrospective study of treosulfan versus busulfan-based conditioning in pediatric patients. Eur J Haematol 2022; 109:474-482. [PMID: 35810360 DOI: 10.1111/ejh.13828] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To compare the outcomes of treosulfan-based vs. busulfan-based conditioning regimens in allogeneic hematopoietic stem cell transplantation (HSCT) in pediatric patients. METHODS Retrospective study of all consecutive patients (2012-2019) treated with allogenic HSCT and treosulfan- or busulfan-based conditioning regimens at a single center. RESULTS A total of 101 HSCT were included: 66 HSCT with busulfan and 35 with treosulfan. In malignant diseases (n=62), busulfan-based conditioning was more commonly employed than treosulfan: 82.3% vs. 17.7%. However, the use of treosulfan for malignant diseases increased over time: 6.5% of HSCT in 2012-2015 vs. 29% of HSCT in 2015-2019 (P=0.02). The cohort of treosulfan had more children under 1-year of age than the busulfan cohort (31 vs. 13%; P=0.033). The percentage of patients who received serotherapy was 73 and 89% in the non-malignant and malignant groups respectively. The engraftment, time to neutrophil, and platelet engraftment were not significantly different between the busulfan and the treosulfan cohorts. Rate of grade II-IV acute GvHD was significantly higher in the busulfan cohort than the treosulfan cohort (39% vs. 15%; P=0.016). No differences were observed in endothelial damage complications, chronic GvHD, relapse, overall survival, and transplant-related mortality. CONCLUSIONS Busulfan-based conditioning regimens are used more frequently for children undergoing allogenic HSCT, but treosulfan-based conditioning is gaining acceptance. Treosulfan-based conditioning is associated with lower rates of acute GvHD, and no significant differences on overall survival were observed compared with busulfan.
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Affiliation(s)
- Raquel Olivas-Mazón
- Pediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain
| | - David Bueno
- Pediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain
| | - Luisa Sisinni
- Pediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain
| | - Yasmina Mozo
- Pediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain
| | | | - Antonio Pérez-Martínez
- Pediatric Hemato-Oncology Department, La Paz University Hospital, Madrid, Spain.,Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain.,Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain
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7
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Across the Myeloablative Spectrum: Hematopoietic Cell Transplant Conditioning Regimens for Pediatric Patients with Sickle Cell Disease. J Clin Med 2022; 11:jcm11133856. [PMID: 35807140 PMCID: PMC9267729 DOI: 10.3390/jcm11133856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 11/16/2022] Open
Abstract
One out of every five hundred African American children in the United States has sickle cell disease (SCD). While multiple disease-modifying therapies are available, hematopoietic cell transplantation (HCT) remains the only curative option for children with SCD. HLA-matched sibling HCT has demonstrated excellent efficacy, but its availability remains limited; alternative donor strategies are increasingly explored. While Busulfan-Cyclophosphamide has become the most widespread conditioning regimen employed in HCT for pediatric SCD, many other regimens have been examined. This review explores different conditioning regimens across the intensity spectrum: from myeloablative to non-myeloablative. We describe survival and organ function outcomes in pediatric SCD patients who have received HCT and discuss the strengths and weaknesses of the various conditioning intensities. Finally, we posit novel directions in allogeneic HCT for SCD.
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Gurevich E, Hayoz M, Aebi Y, Largiadèr CR, Mansouri Taleghani B, Bacher U, Pabst T. Comparison of Melphalan Combined with Treosulfan or Busulfan as High-Dose Chemotherapy before Autologous Stem Cell Transplantation in AML. Cancers (Basel) 2022; 14:cancers14041024. [PMID: 35205772 PMCID: PMC8869805 DOI: 10.3390/cancers14041024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/07/2022] [Accepted: 02/12/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Different consolidation strategies are available for acute myeloid leukemia (AML) patients fit for intensive treatment. For favorable- or intermediate-risk AML, high-dose chemotherapy (HDCT) followed by autologous stem cell transplantation (ASCT) is one of these options. Busulfan plus melphalan is a frequently used and efficient HDCT regimen, but it bears neurotoxic potential and may cause irreversible alopecia, amongst other toxicities. Thus, improving HDCT regimens with lesser toxicity, albeit at comparable anti-leukemic efficacy, is wishful. We combined treosulfan with its more favorable toxicity profile with melphalan for HDCT and compared these patients with a group receiving busulfan/treosulfan. Whereas disease-free and overall survival did not differ significantly, the treosulfan regimen compared favorably, with the absence of neurotoxicity and irreversibly alopecia. Treosulfan serum levels by mass cytometry demonstrated considerable interindividual biovariability. Further studies should explore treosulfan/melphalan for HDCT/ASCT in AML, aiming to improve the quality of life of AML survivors and offer safer consolidation strategies. Abstract (1) Background: High-dose chemotherapy (HDCT) before autologous stem cell transplantation (ASCT) in acute myeloid leukemia (AML) patients predominantly combines busulfan with cyclophosphamide or melphalan. Treosulfan compares favorably regarding lower inter-individual bioavailability and neurotoxicity, but so far, had not been studied before ASCT in AML. (2) Methods: This single-center study investigated AML patients undergoing ASCT in CR1 between November 2017 and September 2020. The first 16 patients received busulfan 16 mg/kg b.w. (days −5 to −2) and melphalan 140 mg/m2 (day −1) (BuMel). In a subsequent (TreoMel) cohort, 20 patients received treosulfan 14 g/m2 (days −4 to −2) and melphalan. Plasma concentrations of busulfan and treosulfan were determined by mass spectrometry. (3) Results: Neutrophil engraftment and platelet recovery were similar, and PFS and OS were comparable. In only the BuMel cohort, patients reported central nervous toxicities, including seizures (6%) and encephalopathy (12%). The mean AUC for busulfan was 1471.32 μM*min, and for treosulfan it was 836.79 mg/L*h, with ranges of 804.1–2082 μM*min and 454.2–1402 mg/L*h. The peak values for busulfan ranged between 880.19–1734 μg/L and for treosulfan between 194.3–489.25 mg/L. (4) Conclusions: TreoMel appears to be safe and effective for pre-ASCT treatment in AML patients. Due to considerable interindividual biovariability, pharmacologic monitoring may also be warranted for the use of treosulfan.
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Affiliation(s)
- Ekaterina Gurevich
- Department of Medical Oncology, Inselspital, University of Bern, CH-3010 Bern, Switzerland;
| | - Michael Hayoz
- Department of Clinical Chemistry, Inselspital, University of Bern, CH-3010 Bern, Switzerland; (M.H.); (Y.A.); (C.R.L.)
- Center of Laboratory Medicine (ZLM), Inselspital, University of Bern, CH-3010 Bern, Switzerland
| | - Yolanda Aebi
- Department of Clinical Chemistry, Inselspital, University of Bern, CH-3010 Bern, Switzerland; (M.H.); (Y.A.); (C.R.L.)
- Center of Laboratory Medicine (ZLM), Inselspital, University of Bern, CH-3010 Bern, Switzerland
| | - Carlo R. Largiadèr
- Department of Clinical Chemistry, Inselspital, University of Bern, CH-3010 Bern, Switzerland; (M.H.); (Y.A.); (C.R.L.)
- Center of Laboratory Medicine (ZLM), Inselspital, University of Bern, CH-3010 Bern, Switzerland
| | | | - Ulrike Bacher
- Department of Hematology, Inselspital, University of Bern, CH-3010 Bern, Switzerland; (B.M.T.); (U.B.)
| | - Thomas Pabst
- Department of Medical Oncology, Inselspital, University of Bern, CH-3010 Bern, Switzerland;
- Correspondence:
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9
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Hematopoietic stem cell transplantation for Wiskott-Aldrich syndrome: an EBMT inborn errors working party analysis. Blood 2022; 139:2066-2079. [PMID: 35100336 DOI: 10.1182/blood.2021014687] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/17/2022] [Indexed: 11/20/2022] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is a potentially curative treatment for patients affected by Wiskott-Aldrich syndrome (WAS). Reported HSCT outcomes have improved over time with respect to overall survival, but some studies have identified older age and HSCT from alternative donors as risk factors predicting poorer outcome. We analyzed 197 patients transplanted at EBMT centers between 2006 and 2017, who received conditioning as recommended by the inborn errors working party (IEWP): either busulfan (n=103) or treosulfan (n=94) combined with fludarabine ± thiotepa. After a median follow-up after HSCT of 44.9 months, 176 patients were alive, resulting in a 3-year overall survival of 88.7%, and chronic GVHD-free survival (CRFS; events: death, graft failure, severe chronic GVHD) of 81.7%. Overall survival and CRFS were not significantly impacted by conditioning regimen (busulfan- versus treosulfan-based), donor type (MSD/MFD vs MUD/MMUD vs. MMFD), and period of HSCT (2006-2013 vs. 2014-2017). Patients younger than 5 years at HSCT had a significantly better overall survival. The overall cumulative incidences of grade III-IV acute GVHD and extensive/moderate/severe chronic GVHD were 6.6% and 2.1%, respectively. Patients receiving treosulfan-based conditioning had a higher incidence of graft failure, mixed donor chimerism and more frequently received secondary procedures (2nd HSCT, unconditioned stem cell boost, donor lymphocyte infusion, or splenectomy). In summary, HSCT for WAS with conditioning regimens currently recommended by IEWP results in excellent survival and low rates of GVHD, regardless of donor or stem cell source, but age ≥5 years remains a risk factor for overall survival.
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10
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Lüftinger R, Zubarovskaya N, Galimard JE, Cseh A, Salzer E, Locatelli F, Algeri M, Yesilipek A, de la Fuente J, Isgrò A, Alseraihy A, Angelucci E, Smiers FJ, La La Nasa G, Zecca M, Fisgin T, Unal E, Kleinschmidt K, Peters C, Lankester A, Corbacioglu S. Busulfan–fludarabine- or treosulfan–fludarabine-based myeloablative conditioning for children with thalassemia major. Ann Hematol 2022; 101:655-665. [DOI: 10.1007/s00277-021-04732-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 11/26/2021] [Indexed: 11/29/2022]
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11
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Lazzari L, Ruggeri A, Lupo Stanghellini MT, Mastaglio S, Messina C, Giglio F, Lorusso A, Perini T, Piemontese S, Marcatti M, Lorentino F, Xue E, Clerici D, Corti C, Bernardi M, Assanelli A, Greco R, Ciceri F, Peccatori J. Treosulfan-Based Conditioning Regimen Prior to Allogeneic Stem Cell Transplantation: Long-Term Results From a Phase 2 Clinical Trial. Front Oncol 2021; 11:731478. [PMID: 34568066 PMCID: PMC8461186 DOI: 10.3389/fonc.2021.731478] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction Reducing toxicities while preserving efficacy in allogeneic stem cell transplant (allo-HCT) remains a particularly challenging problem. Different strategies to enhance the antitumor activity without increasing early and late adverse toxicities of the conditioning regimens have been investigated. Methods The aim of “AlloTreo” prospective phase 2 clinical trial was to evaluate the efficacy and safety of a conditioning regimen based on Treosulfan (42 g/m2) and fludarabine (https://clinicaltrials.gov/ct2/show/NCT00598624). We enrolled 108 patients with hematological diseases who received a first allo-HCT between June 2005 and January 2011, inside the frame of this trial at our center. Median age at allo-HCT was 49 (21–69) years. Disease Risk Index was low in 14 (13%) patients, intermediate in 73 (67.7%), high in 17 (15.7%), and very high in 4 (3.7%). Donors were human leukocyte antigen (HLA)-matched related in 50 cases, 10/10-matched unrelated in 36, and 9/10-mismatched unrelated in 22. Graft-versus-host disease (GvHD) prophylaxis consisted of cyclosporine-A and methotrexate. Anti-T-lymphocyte globulin (ATLG) was administered in patients receiving unrelated allo-HCT. Stem cell source was mainly peripheral blood stem cells (95%). Results Conditioning regimen was well tolerated. Full donor chimerism was documented for most patients (88%) at day +30. At 12 years, overall survival (OS) was 41.7% (32.2%–50.9%), progression-free survival (PFS) was 31.7% (23%–40.7%), GvHD-free/relapse-free survival was 20.9% (13.7%–29.1%), cumulative incidence (CI) of relapse was 44.5% (34.9%–53.6%), and transplant-related mortality (TRM) was 22.5% (15.1%–30.9%). CI of acute GvHD grades II–IV was 27.8% (19.7%–36.5%) at 100 days; 12-year CI of chronic GvHD was 40.7% (31.3%–49.9%). Relevant long-term adverse effects were 10 secondary malignancy, 3 fatal cardiovascular events, and 1 late-onset transplant-associated thrombotic microangiopathy. Ten successful pregnancies were reported after allo-HCT. In multivariate analysis, older age (≥60 years) at transplant [hazard ratio (HR), 2.157; p = 0.004] and a high/very high disease risk index (HR, 1.913; p = 0.026) were significantly associated with a lower OS. Conclusions Overall, our data confirmed the myeloablative potential and safe toxicity profile of full dose Treo (42 g/m2) especially for the younger population.
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Affiliation(s)
- Lorenzo Lazzari
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Annalisa Ruggeri
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Sara Mastaglio
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Carlo Messina
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fabio Giglio
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Alessandro Lorusso
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Berlin,Germany
| | - Tommaso Perini
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Simona Piemontese
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Magda Marcatti
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesca Lorentino
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.,PhD Program in Public Health, Department of Medicine and Surgery, University of Milano Bicocca, Milan, Italy
| | - Elisabetta Xue
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Daniela Clerici
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Consuelo Corti
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Massimo Bernardi
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Andrea Assanelli
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Raffaella Greco
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fabio Ciceri
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Jacopo Peccatori
- Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
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12
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Sakellari I, Gavriilaki E, Mallouri D, Batsis I, Varelas C, Tagara S, Bousiou Z, Papathanasiou M, Vardi A, Papalexandri A, Vadikoliou C, Athanasiadou A, Lalayanni C, Fylaktou A, Antoniadis K, Anagnostopoulos A. Survival Advantage of Treosulfan Plus Fludarabine Before Allogeneic Hematopoietic Cell Transplantation for Older or Comorbid Patients With Myeloid Malignancies. Transplant Cell Ther 2021; 27:916.e1-916.e6. [PMID: 34320443 DOI: 10.1016/j.jtct.2021.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/24/2021] [Accepted: 07/19/2021] [Indexed: 11/29/2022]
Abstract
We have previously shown an advantage of a myeloablative conditioning regimen with reduced toxicity (Fludarabine 150 mg/m2, Treosulfan 42 g/m2, FluTreo) compared to a reduced-intensity regimen. We aimed to determine long-term safety and efficacy of FluTreo. We prospectively studied consecutive patients who received FluTreo in our center (2014-2019) on the basis of age (≥50 years), hematopoietic cell transplantation comorbidity index (HCT-CI) ≥2, or both. FluTreo recipients were then compared to a historical control group. We studied 68 FluTreo recipients, with a median age of 58.5 years and HCT-CI of 3. We calculated cumulative incidence (CI) of acute (grade 2-4) and moderate/severe chronic graft-versus-host disease (GVHD) (29.9% and 25%, respectively). The 3-year CI of treatment-related mortality was 19.1%, associated only with acute GVHD (P < .001). With a median follow-up of 27.3 (range 5.7-84.5) months in surviving patients, the 3-year overall survival (OS) was 56.6%, and disease-free survival (DFS) was 54.9%. Median survival has not yet been reached. Among pretransplantation and transplantation factors, only HCT-CI was associated with DFS and OS (P = .022 and P = .043, respectively). FluTreo recipients aged ≥50 with HCT-CI ≤ 2 had favorable DFS and OS compared with patients aged ≥50 with HCT-CI ≤2 after myeloablative conditioning. Our real-world study confirms that HCT with FluTreo expands the transplant population with favorable outcomes compared to previously used conditions. The choice of HCT in patients of a rather older age and comorbidity index needs to be revisited.
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Affiliation(s)
- Ioanna Sakellari
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Eleni Gavriilaki
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece.
| | - Despina Mallouri
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Ioannis Batsis
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Christos Varelas
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Sofia Tagara
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Zoi Bousiou
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Maria Papathanasiou
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Anna Vardi
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | | | | | | | - Chrysavgi Lalayanni
- Hematology Department - BMT Unit, G Papanicolaou Hospital, Thessaloniki, Greece
| | - Asimina Fylaktou
- National Peripheral Histocompatibility Center, Department of Immunology, Hippokration General Hospital, Thessaloniki, Greece
| | - Konstantinos Antoniadis
- Aristotle University of Thessaloniki, School of Health Sciences, School of Dentistry, Thessaloniki, Greece
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13
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Sauer MG. [Total body irradiation or chemotherapy conditioning in childhood ALL : A multinational, randomized, noninferiority phase III study]. Strahlenther Onkol 2021; 197:857-858. [PMID: 34213570 PMCID: PMC8397632 DOI: 10.1007/s00066-021-01805-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Martin G Sauer
- Bereich Pädiatrische Stammzelltransplantation und Zelltherapie, Klinik für Pädiatrische Hämatologie und Onkologie, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, OE 6780, Hannover, Deutschland.
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14
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Ben Hassine K, Powys M, Svec P, Pozdechova M, Versluys B, Ansari M, Shaw PJ. Total Body Irradiation Forever? Optimising Chemotherapeutic Options for Irradiation-Free Conditioning for Paediatric Acute Lymphoblastic Leukaemia. Front Pediatr 2021; 9:775485. [PMID: 34956984 PMCID: PMC8705537 DOI: 10.3389/fped.2021.775485] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/21/2021] [Indexed: 12/15/2022] Open
Abstract
Total-body irradiation (TBI) based conditioning prior to allogeneic hematopoietic stem cell transplantation (HSCT) is generally regarded as the gold-standard for children >4 years of age with acute lymphoblastic leukaemia (ALL). Retrospective studies in the 1990's suggested better survival with irradiation, confirmed in a small randomised, prospective study in the early 2000's. Most recently, this was reconfirmed by the early results of the large, randomised, international, phase III FORUM study published in 2020. But we know survivors will suffer a multitude of long-term sequelae after TBI, including second malignancies, neurocognitive, endocrine and cardiometabolic effects. The drive to avoid TBI directs us to continue optimising irradiation-free, myeloablative conditioning. In chemotherapy-based conditioning, the dominant myeloablative effect is provided by the alkylating agents, most commonly busulfan or treosulfan. Busulfan with cyclophosphamide is a long-established alternative to TBI-based conditioning in ALL patients. Substituting fludarabine for cyclophosphamide reduces toxicity, but may not be as effective, prompting the addition of a third agent, such as thiotepa, melphalan, and now clofarabine. For busulfan, it's wide pharmacokinetic (PK) variability and narrow therapeutic window is well-known, with widespread use of therapeutic drug monitoring (TDM) to individualise dosing and control the cumulative busulfan exposure. The development of first-dose selection algorithms has helped achieve early, accurate busulfan levels within the targeted therapeutic window. In the future, predictive genetic variants, associated with differing busulfan exposures and toxicities, could be employed to further tailor individualised busulfan-based conditioning for ALL patients. Treosulfan-based conditioning leads to comparable outcomes to busulfan-based conditioning in paediatric ALL, without the need for TDM to date. Future PK evaluation and modelling may optimise therapy and improve outcome. More recently, the addition of clofarabine to busulfan/fludarabine has shown encouraging results when compared to TBI-based regimens. The combination shows activity in ALL as well as AML and deserves further evaluation. Like busulfan, optimization of chemotherapy conditioning may be enhanced by understanding not just the PK of clofarabine, fludarabine, treosulfan and other agents, but also the pharmacodynamics and pharmacogenetics, ideally in the context of a single disease such as ALL.
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Affiliation(s)
- Khalil Ben Hassine
- Cansearch Research Platform for Pediatric Oncology and Hematology, Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Madeleine Powys
- Blood Transplant and Cell Therapies, Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Peter Svec
- Department of Pediatric Hematology and Oncology, Comenius University, Bratislava, Slovakia.,Bone Marrow Transplantation Unit, National Institute of Children's Diseases, Bratislava, Slovakia
| | - Miroslava Pozdechova
- Department of Pediatric Hematology and Oncology, Comenius University, Bratislava, Slovakia.,Bone Marrow Transplantation Unit, National Institute of Children's Diseases, Bratislava, Slovakia
| | | | - Marc Ansari
- Cansearch Research Platform for Pediatric Oncology and Hematology, Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Pediatric Oncology and Hematology, Department of Women, Child and Adolescent, University Geneva Hospitals, Geneva, Switzerland
| | - Peter J Shaw
- Blood Transplant and Cell Therapies, Children's Hospital at Westmead, Sydney, NSW, Australia.,Speciality of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
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15
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Zhu S, Liu G, Liu J, Chen Q, Wang Z. Long-Term Outcomes of Treosulfan- vs. Busulfan-Based Conditioning Regimen for Patients With Myelodysplastic Syndrome and Acute Myeloid Leukemia Before Hematopoietic Cell Transplantation: A Systematic Review and Meta-Analysis. Front Oncol 2020; 10:591363. [PMID: 33425740 PMCID: PMC7793760 DOI: 10.3389/fonc.2020.591363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/05/2020] [Indexed: 12/17/2022] Open
Abstract
Background Many studies aimed to evaluate the efficacy and safety of treosulfan-based conditioning regimens for allogeneic hematopoietic cell transplantation (allo-HCT) compared with other regimens, but different outcomes were reported across studies. Aim To determine the long-term survival outcomes of treosulfan-based vs. busulfan-based conditioning regimens in myelodysplastic syndrome (MDS)/acute myeloid leukemia (AML) patients. Methods PubMed, Embase, and Cochrane library were searched for studies published prior to December 6, 2019. The fixed-effects model was applied for overall survival (OS), leukemia-free survival (LFS), non-relapse mortality (NRM), acute and chronic graft versus host disease (GvHD). Relapse incidence (RI) was pooled by the use of the random-effects model. Results Six studies were included (3,982 patients; range, 57-1,956). The pooled HR for OS favored treosulfan (HR=0.80, 95%CI: 0.71-0.90). There was no significant difference in NRM between the two regimens (HR=0.84, 95%CI=0.71-1.01). There was no significant difference in LFS between the two regimens (HR=0.98, 95%CI=0.87-1.12). Treosulfan-based regimens showed a lower risk of aGvHD (HR=0.70, 95%CI=0.59-0.82), but there was no difference for cGvHD (HR=0.94, 95%CI=0.81-1.09). There was no significant difference in RI between the two regimens (HR=0.96, 95%CI=0.71-1.31). There was no publication bias among these studies. Conclusion The current meta-analysis determined that treosulfan-based conditioning regimens could improve the OS in patients with MDS and AML, with lower acute graft-versus-host disease incidence, compared with busulfan-based regimens.
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Affiliation(s)
- Sheng Zhu
- Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou, China.,Department of Radiology, Affiliated Hospital of Xiangnan University, Chenzhou, China
| | - Gang Liu
- Department of Pediatrics, Affiliated Hospital of Xiangnan University, Chenzhou, China
| | - Jing Liu
- Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Qiuying Chen
- Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zhiqiang Wang
- Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou, China
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16
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Huttunen P, Taskinen M, Vettenranta K. Acute toxicity and outcome among pediatric allogeneic hematopoietic transplant patients conditioned with treosulfan-based regimens. Pediatr Hematol Oncol 2020; 37:355-364. [PMID: 32166994 DOI: 10.1080/08880018.2020.1738604] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Treosulfan-based regimens constitute a feasible and increasingly used, but still myeloablative, conditioning in pediatric allogeneic hematopoietic stem cell transplantation (HSCT). We retrospectively analyzed the acute toxicity and outcome of all consecutive (2004-2015) pediatric HSCT patients prepared for HSCT with treosulfan in a single-center setting. We included HSCTs performed for both nonmalignant (n = 23) and malignant diseases (n = 11). The controls were patients with nonmalignant diseases or hematological malignancies conditioned with cyclophosphamide (Cy)-total body irradiation (TBI)-based (39 patients) or busulfan-based regimens (11 patients). The major toxicities of the treosulfan-based regimens were limited to oral mucosa and skin. 50% of the patients needed IV morphine for severe mucositis compared to 31% in patients conditioned with Cy-TBI (P = 0.02). Other toxicities were rare. The disease-free survival (DFS) of patients transplanted for nonmalignant disorders was 88.9 ± 7.5% at 2 years. The event-free survival (EFS) at 2 years in this small cohort for those with a malignant disease and a treosulfan-based conditioning was 54.5 ± 1.5%. We conclude that a treosulfan-based conditioning regimen gives excellent DFS in pediatric HSCT performed for a nonmalignant disorder but with substantial mucosal toxicity. In a malignant disorder a treosulfan-based regimen looks promising but larger, preferably randomized, studies are needed to prove efficacy.
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Affiliation(s)
- Pasi Huttunen
- Division of Hematology-Oncology and Stem Cell Transplantation, New Children´s Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Mervi Taskinen
- Division of Hematology-Oncology and Stem Cell Transplantation, New Children´s Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Kim Vettenranta
- Division of Hematology-Oncology and Stem Cell Transplantation, New Children´s Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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17
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Hafez HA, Abdallah A, Hammad M, Hamdy N, Yassin D, Salem S, Hassanain O, Elhalaby L, Elhaddad A. Outcomes of allogenic hematopoietic cell transplantation for childhood chronic myeloid leukemia: Single-center experience. Pediatr Transplant 2020; 24:e13664. [PMID: 32043758 DOI: 10.1111/petr.13664] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 01/02/2020] [Accepted: 01/07/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND/OBJECTIVES Despite the apparent efficacy and favorable toxicity profile of TKIs, allogeneic SCT remains the only curative treatment for CML especially in younger patients, but TRM should be considered. We evaluated the clinical outcomes of pediatric CML patients who had SCT in our center. METHODS This retrospective study included children with CML, who received an allogeneic SCT at Children Cancer Hospital Egypt, 57357, from 2007 to 2017. All patients received myeloablative conditioning chemotherapy containing busulfan/cyclophosphamide followed by stem cell infusion from MRD. RESULTS From 121 patients diagnosed with CML, 43 had available MRD and subjected to HSCT while 78 patients continued TKI therapy. The median time to transplant from diagnosis was 13 months. At initial diagnosis, there were 39 patients in CP and 4 had blastic crises. Bone marrow harvest was the stem cell source in 32 patients, while 11 cases received mobilized peripheral blood stem cells with average stem cell dose of 4.45 × 106 /kg. The probabilities of overall survival and event-free survival at 5 years were 97.4% and 79.8%, respectively. TRM at 100 days and TRM at 1-year post-transplant were 0%. The incidence of chronic GVHD was significantly higher in peripheral blood than bone marrow stem cell source (P = .004). CONCLUSION Considering the excellent survival rates and very low TRM, HSCT is still a valid option for pediatric patients with newly diagnosed CML with best using marrow stem cell source to avoid a significant risk of cGVHD and its related complications.
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Affiliation(s)
- Hanafy A Hafez
- Pediatric Hematology/Oncology, National Cancer Institute, Cairo University, Cairo, Egypt.,Pediatric Hematology/Oncology, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Amr Abdallah
- Pediatric Hematology/Oncology, National Cancer Institute, Cairo University, Cairo, Egypt.,Pediatric Hematology/Oncology, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Mahmoud Hammad
- Pediatric Hematology/Oncology, National Cancer Institute, Cairo University, Cairo, Egypt.,Pediatric Hematology/Oncology, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Nayera Hamdy
- Clinical Pathology, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Dina Yassin
- Clinical Pathology, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Sherine Salem
- Clinical Pathology, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Omayma Hassanain
- Research Department, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Lama Elhalaby
- Research Department, Children Cancer Hospital Egypt, Cairo, Egypt
| | - Alaa Elhaddad
- Pediatric Hematology/Oncology, National Cancer Institute, Cairo University, Cairo, Egypt.,Pediatric Hematology/Oncology, Children Cancer Hospital Egypt, Cairo, Egypt
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18
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Kalwak K, Mielcarek M, Patrick K, Styczynski J, Bader P, Corbacioglu S, Burkhardt B, Sykora KW, Drabko K, Gozdzik J, Fagioli F, Greil J, Gruhn B, Beier R, Locatelli F, Müller I, Schlegel PG, Sedlacek P, Stachel KD, Hemmelmann C, Möller AK, Baumgart J, Vora A. Treosulfan-fludarabine-thiotepa-based conditioning treatment before allogeneic hematopoietic stem cell transplantation for pediatric patients with hematological malignancies. Bone Marrow Transplant 2020; 55:1996-2007. [PMID: 32203268 PMCID: PMC7515850 DOI: 10.1038/s41409-020-0869-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 03/04/2020] [Accepted: 03/10/2020] [Indexed: 01/21/2023]
Abstract
Treosulfan-based conditioning prior to allogeneic transplantation has been shown to have myeloablative, immunosuppressive, and antineoplastic effects associated with reduced non-relapse mortality (NRM) in adults. Therefore, we prospectively evaluated the safety and efficacy of treosulfan-based conditioning in children with hematological malignancies in this phase II trial. Overall, 65 children with acute lymphoblastic leukemia (35.4%), acute myeloid leukemia (44.6%), myelodysplastic syndrome (15.4%), or juvenile myelomonocytic leukemia (4.6%) received treosulfan intravenously at a dose of 10 mg/m2/day (7.7%), 12 g/m2/day (35.4%), or 14 g/m2/day (56.9%) according to their individual body surface area in combination with fludarabine and thiotepa. The incidence of complete donor chimerism at day +28 was 98.4% with no primary and only one secondary graft failure. At 36 months, NRM was only 3.1%, while relapse incidence was 21.7%, and overall survival was 83.0%. The cumulative incidence of acute graft-vs.-host disease was 45.3% for grades I–IV and 26.6% for grades II–IV. At 36 months, 25.8% overall and 19.4% moderate/severe chronic graft-vs.-host disease were reported. These data confirm the safe and effective use of treosulfan-based conditioning in pediatric patients with hematological malignancies. Therefore, treosulfan/fludarabine/thiotepa can be recommended for myeloablative conditioning in children with hematological malignancies.
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Affiliation(s)
- Krzysztof Kalwak
- Department of Pediatric Hematology, Oncology and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland.
| | - Monika Mielcarek
- Department of Pediatric Hematology, Oncology and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland
| | | | - Jan Styczynski
- Department of Pediatric Hematology and Oncology, Collegium Medicum UMK Torun, Bydgoszcz, Poland
| | - Peter Bader
- Department for Children and Adolescents, Division for Stem Cell Transplantation, Immunology and Intensive Care Medicine, Goethe University, Frankfurt, Germany
| | | | - Birgit Burkhardt
- Department of Pediatric Hematology, Oncology and BMT, University Hospital Muenster, Muenster, Germany
| | | | - Katarzyna Drabko
- Department of Pediatric Hematology, Oncology and Transplantology, Medical University of Lublin, Lublin, Poland
| | - Jolanta Gozdzik
- Medical College, University Children's Hospital in Cracow Jagiellonian University, Cracow, Poland
| | - Franca Fagioli
- Children's Hospital Regina Margherita, University of Turin, Turin, Italy
| | - Johann Greil
- University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Bernd Gruhn
- Department of Pediatrics, Jena University Hospital, Jena, Germany
| | - Rita Beier
- Depertment of Pediatrics III, University Hospital of Essen, Essen, Germany
| | - Franco Locatelli
- IRCCS Bambino Gesú Children's Hospital, Sapienza University of Rome, Rome, Italy
| | - Ingo Müller
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Petr Sedlacek
- Department of Pediatric Hematology and Oncology, University Hospital Motol, Prague, Czech Republic
| | | | | | | | | | - Ajay Vora
- Great Ormond Street Hospital, London, UK
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19
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Myeloablative conditioning for allo-HSCT in pediatric ALL: FTBI or chemotherapy?-A multicenter EBMT-PDWP study. Bone Marrow Transplant 2020; 55:1540-1551. [PMID: 32203263 PMCID: PMC8376634 DOI: 10.1038/s41409-020-0854-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 01/23/2023]
Abstract
Although most children with acute lymphoblastic leukemia (ALL) receive fractionated total body irradiation (FTBI) as myeloablative conditioning (MAC) for allogeneic hematopoietic stem cell transplantation (allo-HSCT), it is an important matter of debate if chemotherapy can effectively replace FTBI. To compare outcomes after FTBI versus chemotherapy-based conditioning (CC), we performed a retrospective EBMT registry study. Children aged 2–18 years after MAC for first allo-HSCT of bone marrow (BM) or peripheral blood stem cells (PBSC) from matched-related (MRD) or unrelated donors (UD) in first (CR1) or second remission (CR2) between 2000 and 2012 were included. Propensity score weighting was used to control pretreatment imbalances of the observed variables. 3.054 patients were analyzed. CR1 (1.498): median follow-up (FU) after FTBI (1.285) and CC (213) was 6.8 and 6.1 years. Survivals were not significantly different. CR2 (1.556): median FU after FTBI (1.345) and CC (211) was 6.2 years. Outcomes after FTBI were superior as compared with CC with regard to overall survival (OS), leukemia-free survival (LFS), relapse incidence (RI), and nonrelapse mortality (NRM). However, we must emphasize the preliminary character of the results of this retrospective “real-world-practice” study. These findings will be prospectively assessed in the ALL SCTped 2012 FORUM trial.
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20
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In Vitro Study of the Enzymatic and Nonenzymatic Conjugation of Treosulfan with Glutathione. Eur J Drug Metab Pharmacokinet 2020; 44:653-657. [PMID: 30993552 PMCID: PMC6746681 DOI: 10.1007/s13318-019-00555-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND AND OBJECTIVES Treosulfan (dihydroxybusulfan), licensed for the treatment of ovarian carcinoma, is investigated in clinical trials as a myeloablative agent for conditioning prior to hematopoietic stem cell transplantation. Clinical experience shows that treosulfan exhibits lower organ toxicity than busulfan, including hepatotoxicity. Elimination of busulfan primarily via enzymatic conjugation with glutathione (GSH) in the liver is considered to be the main cause of the drug's hepatotoxicity and interpatient clearance variability. It is believed that treosulfan undergoes no hepatic metabolism but empirical evidence is lacking. The aim of this kinetic study was to verify if treosulfan is capable of conjugating with GSH. METHODS Treosulfan (200 μM) was incubated at pH 7.2 and 37 °C with 5 mM GSH in the presence or absence of human liver cytosol, the main store of glutathione S-transferase in the body. Concentrations of treosulfan were determined using liquid chromatography-tandem mass spectrometry and then subjected to kinetic analysis. RESULTS The decay of treosulfan in the solution followed a one-exponential model in the presence of either GSH or liver cytosol and GSH. The first-order reaction rate constants (0.25 h-1) did not differ statistically from those found for treosulfan conversion in pH 7.2 buffer only. CONCLUSION Treosulfan does not undergo either spontaneous or enzymatic conjugation with GSH at a noticeable rate. The result indicates that the clearance of treosulfan is independent of glutathione S-transferase activity, GSH stores, and co-administration of drugs utilizing the GSH metabolic pathway.
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21
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Chiesa R, Standing JF, Winter R, Nademi Z, Chu J, Pinner D, Kloprogge F, McLellen S, Amrolia PJ, Rao K, Lucchini G, Silva J, Ciocarlie O, Lazareva A, Gennery AR, Doncheva B, Cant AJ, Hambleton S, Flood T, Rogerson E, Devine K, Prunty H, Heales S, Veys P, Slatter M. Proposed Therapeutic Range of Treosulfan in Reduced Toxicity Pediatric Allogeneic Hematopoietic Stem Cell Transplant Conditioning: Results From a Prospective Trial. Clin Pharmacol Ther 2019; 108:264-273. [PMID: 31701524 PMCID: PMC7484914 DOI: 10.1002/cpt.1715] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/28/2019] [Indexed: 12/18/2022]
Abstract
Treosulfan is given off‐label in pediatric allogeneic hematopoietic stem cell transplant. This study investigated treosulfan's pharmacokinetics (PKs), efficacy, and safety in a prospective trial. Pediatric patients (n = 87) receiving treosulfan‐fludarabine conditioning were followed for at least 1 year posttransplant. PKs were described with a two‐compartment model. During follow‐up, 11 of 87 patients died and 12 of 87 patients had low engraftment (≤ 20% myeloid chimerism). For each increase in treosulfan area under the curve from zero to infinity (AUC(0‐∞)) of 1,000 mg hour/L the hazard ratio (95% confidence interval) for mortality increase was 1.46 (1.23–1.74), and the hazard ratio for low engraftment was 0.61 (0.36–1.04). A cumulative AUC(0‐∞) of 4,800 mg hour/L maximized the probability of success (> 20% engraftment and no mortality) at 82%. Probability of success with AUC(0‐∞) between 80% and 125% of this target were 78% and 79%. Measuring PK at the first dose and individualizing the third dose may be required in nonmalignant disease.
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Affiliation(s)
- Robert Chiesa
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Joseph F Standing
- Pharmacy Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,Infection, Immunity, and Inflammation, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Robert Winter
- Chemical Pathology Department, Great Ormond Street Hospital for Children,, NHS Foundation Trust, London, UK
| | - Zohreh Nademi
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Jan Chu
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Danielle Pinner
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Frank Kloprogge
- Institute for Global Health, University College London, London, UK
| | - Susan McLellen
- Clinical Biochemistry, Integrated Laboratory Medicine Directorate, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Persis J Amrolia
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,Infection, Immunity, and Inflammation, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Kanchan Rao
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Giovanna Lucchini
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Juliana Silva
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Oana Ciocarlie
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Arina Lazareva
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Andrew R Gennery
- Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Bilyana Doncheva
- Pharmacy Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - Andrew J Cant
- Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Sophie Hambleton
- Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Terence Flood
- Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Elizabeth Rogerson
- Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Kirsty Devine
- Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Helen Prunty
- Chemical Pathology Department, Great Ormond Street Hospital for Children,, NHS Foundation Trust, London, UK
| | - Simon Heales
- Chemical Pathology Department, Great Ormond Street Hospital for Children,, NHS Foundation Trust, London, UK
| | - Paul Veys
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,Infection, Immunity, and Inflammation, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Mary Slatter
- Bone Marrow Transplantation Department, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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22
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Winther-Jørgensen S, Nygaard M, Heilmann C, Ifversen M, Sørensen K, Müller K, Masmas T. Feasibility of extracorporeal photopheresis in pediatric patients with graft-versus-host disease after hematopoietic stem cell transplantation. Pediatr Transplant 2019; 23:e13416. [PMID: 30973668 DOI: 10.1111/petr.13416] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/01/2019] [Accepted: 02/12/2019] [Indexed: 11/30/2022]
Abstract
Graft-versus-host disease (GVHD) is a main cause of morbidity and mortality following hematopoietic stem cell transplantation. The cumulative incidence of acute and chronic GVHD (aGVHD, cGVHD) reaches 30%-50% and 20% in pediatric populations, respectively. Prednisolone and/or calcineurin inhibitors (CNI) are first-line treatments, but no superior second-line treatment has yet been established. Several treatments have been suggested, among others extracorporeal photopheresis (ECP). Technical advances have made treatment of pediatric patients possible; however, only few reports on the feasibility of ECP in children have been published. We retrospectively studied the feasibility, safety, and efficacy of ECP in 15 children with steroid-dependent/refractory acute or chronic GVHD, who initiated ECP treatment between April 2014 and January 2018. Only few and mild side effects directly related to the ECP procedure were registered, even in patients with low body weight. The most frequent cause of shortened or canceled ECP treatment was difficulties with vascular accesses, which were more rarely seen using central venous catheters with larger lumens and made of stiffer material. Nine patients had grade II-III aGVHD. Six of these experienced a response to ECP at day 28, while eight of nine had responded at the last ECP treatment. Six patients had cGVHD when ECP was initiated, and of these, four had a partial response at last ECP treatment. We found ECP to be a feasible and safe treatment, and particularly, children with aGVHD appeared to respond well to ECP.
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Affiliation(s)
- Signe Winther-Jørgensen
- The Child and Adolescent Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Marietta Nygaard
- Department of Hematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Dermatology, Bispebjerg University Hospital, Copenhagen, Denmark
| | - Carsten Heilmann
- The Child and Adolescent Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Marianne Ifversen
- The Child and Adolescent Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kaspar Sørensen
- The Child and Adolescent Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Klaus Müller
- The Child and Adolescent Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Rheumatology and Spine Disease, Institute for Inflammation Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Tania Masmas
- The Child and Adolescent Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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23
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Romański M, Zacharzewska A, Teżyk A, Główka FK. In Vivo Red Blood Cells/Plasma Partition Coefficient of Treosulfan and Its Active Monoepoxide in Rats. Eur J Drug Metab Pharmacokinet 2019. [PMID: 29542019 PMCID: PMC6133075 DOI: 10.1007/s13318-018-0469-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Treosulfan is a prodrug applied in the treatment of ovarian cancer and conditioning prior to stem cell transplantation. So far, the bioanalysis of treosulfan in either whole blood or red blood cells (RBC) has not been carried out. In this work, the RBC/plasma partition coefficient (Ke/p) of treosulfan and its active monoepoxide was determined for the first time. METHODS Male and female 10-week-old Wistar rats (n = 6/6) received an intraperitoneal injection of treosulfan at the dose of 500 mg/kg body weight. The concentrations of treosulfan and its monoepoxide in plasma (Cp) and RBC were analyzed with a validated HPLC-MS/MS method. RESULTS The mean Ke/p of treosulfan and its monoepoxide were 0.74 and 0.60, respectively, corresponding to the blood/plasma partition coefficient of 0.88 and 0.82. The Spearman test demonstrated that the Ke/p of the prodrug correlated with its Cp, but no correlation between the Ke/p and Cp of the active monoepoxide was observed. CONCLUSIONS Treosulfan and its monoepoxide achieve higher concentrations in plasma than in RBC; therefore, the choice of plasma for bioanalysis is rational as compared to whole blood. The distribution of treosulfan into RBC may be a saturable process at therapeutic concentrations.
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Affiliation(s)
- Michał Romański
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Święcickiego Street, 60-781, Poznan, Poland
| | - Anna Zacharzewska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Święcickiego Street, 60-781, Poznan, Poland
| | - Artur Teżyk
- Department of Forensic Medicine, Poznan University of Medical Sciences, 6 Święcickiego Street, 60-781, Poznan, Poland
| | - Franciszek K Główka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Święcickiego Street, 60-781, Poznan, Poland.
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24
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Nemecek ER, Hilger RA, Adams A, Shaw BE, Kiefer D, Le-Rademacher J, Levine JE, Yanik G, Leung W, Talano JA, Haut P, Delgado D, Kapoor N, Petrovic A, Adams R, Hanna R, Rangarajan H, Dalal J, Chewning J, Verneris MR, Epstein S, Burroughs L, Perez-Albuerne ED, Pulsipher MA, Delaney C. Treosulfan, Fludarabine, and Low-Dose Total Body Irradiation for Children and Young Adults with Acute Myeloid Leukemia or Myelodysplastic Syndrome Undergoing Allogeneic Hematopoietic Cell Transplantation: Prospective Phase II Trial of the Pediatric Blood and Marrow Transplant Consortium. Biol Blood Marrow Transplant 2018; 24:1651-1656. [PMID: 29753157 DOI: 10.1016/j.bbmt.2018.04.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/25/2018] [Indexed: 12/22/2022]
Abstract
This multicenter study evaluated a treosulfan-based regimen in children and young adults with acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) undergoing allogeneic hematopoietic cell transplant (HCT). Forty patients with median age 11 years (range, 1 to 19) underwent allogeneic HCT for AML in first (n = 18), second (n = 11), and third or greater remission (n = 3) or MDS (n = 8) using bone marrow (n = 25), peripheral blood stem cells (n = 5), or cord blood (n = 9). The regimen consisted of body surface area (BSA)-based treosulfan 10 g/m2/day (BSA ≤ .5 m2), 12 g/m2/day (BSA > .5 to 1.0 m2), or 14 g/m2/day (BSA > 1.0 m2) on days -6 to -4; fludarabine 30 mg/m2/day on days -6 to -2; and a single fraction of 200 cGy total body irradiation on day -1. Graft-versus-host disease (GVHD) prophylaxis included tacrolimus and methotrexate for marrow and peripheral blood stem cell and cyclosporine/mycophenolate mofetil for cord blood. One-year overall survival, disease-free survival, and nonrelapse mortality were 80%, 73%, and 3%, respectively. One-year relapse was 38% for AML and 13% for MDS. No serious organ toxicities were observed. All 37 assessable patients engrafted. Cumulative incidences of grades II to IV acute GVHD and chronic GVHD were 22% and 40%, respectively. BSA-based treosulfan dosing resulted in predictable area under the curve and maximum concentration, which is required for dosing without measuring individual pharmacokinetic parameters. Observed differences in pharmacokinetics did not impact disease control or regimen toxicity. This BSA-based treosulfan regimen resulted in excellent engraftment and disease-free survival and minimal toxicity and transplant-related mortality (3%) in children and young adults with AML and MDS.
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Affiliation(s)
- Eneida R Nemecek
- Doernbecher Children's Hospital, Oregon Health & Science University, Portland, Oregon.
| | - Ralf A Hilger
- West German Cancer Center, University Hospital Essen, University Duisburg Essen, Essen, Germany
| | - Alexia Adams
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, Minnesota
| | - Bronwen E Shaw
- Center for International Blood and Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Deidre Kiefer
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, Minnesota
| | | | - John E Levine
- Division of Pediatric Hematology/Oncology, Mount Sinai School of Medicine, New York, New York
| | - Gregory Yanik
- Division of Pediatric Hematology/Oncology, University of Michigan, Ann Arbor, Michigan
| | - Wing Leung
- Division of Pediatric Hematology/Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Julie-An Talano
- Division of Pediatric Hematology/Oncology, Children's Hospital of Wisconsin, Milwaukee, Wisconsin
| | - Paul Haut
- Division of Pediatric Hematology/Oncology, Riley Children's Hospital at Indiana University Health, Indianapolis, Indiana
| | - David Delgado
- Division of Pediatric Hematology/Oncology, Riley Children's Hospital at Indiana University Health, Indianapolis, Indiana
| | - Neena Kapoor
- Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Keck School of Medicine at University of Southern California, Los Angeles, California
| | - Aleksandra Petrovic
- Division of Pediatric Hematology/Oncology, Johns Hopkins All Children's Hospital, St. Petersburg, Florida
| | - Roberta Adams
- Division of Pediatric Hematology/Oncology, Mayo Clinic Arizona and Phoenix Children's Hospital, Phoenix, Arizona
| | - Rabi Hanna
- Division of Pediatric Hematology/Oncology, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Hemalatha Rangarajan
- Division of Pediatric Hematology/Oncology, Nationwide Children's Hospital, Columbus, Ohio
| | - Jignesh Dalal
- Division of Pediatric Hematology/Oncology, The Children's Mercy Hospitals and Clinics, Kansas City, Missouri
| | - Joseph Chewning
- Children's of Alabama, University of Alabama at Birmingham, Birmingham, Alabama
| | - Michael R Verneris
- Division of Pediatric Hematology/Oncology, University of Minnesota Medical Center, Fairview, Minneapolis, Minnesota
| | - Stacy Epstein
- Levine Children's Hospital, Carolinas Medical Center, Charlotte, North Carolina
| | - Lauri Burroughs
- Fred Hutchinson Cancer Research Center and University of Washington, Seattle, Washington
| | - Evelio D Perez-Albuerne
- Children's National Health System, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia
| | - Michael A Pulsipher
- Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Keck School of Medicine at University of Southern California, Los Angeles, California
| | - Colleen Delaney
- Fred Hutchinson Cancer Research Center and University of Washington, Seattle, Washington
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25
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Corbacioglu S, Carreras E, Ansari M, Balduzzi A, Cesaro S, Dalle JH, Dignan F, Gibson B, Guengoer T, Gruhn B, Lankester A, Locatelli F, Pagliuca A, Peters C, Richardson PG, Schulz AS, Sedlacek P, Stein J, Sykora KW, Toporski J, Trigoso E, Vetteranta K, Wachowiak J, Wallhult E, Wynn R, Yaniv I, Yesilipek A, Mohty M, Bader P. Diagnosis and severity criteria for sinusoidal obstruction syndrome/veno-occlusive disease in pediatric patients: a new classification from the European society for blood and marrow transplantation. Bone Marrow Transplant 2018; 53:138-145. [PMID: 28759025 PMCID: PMC5803572 DOI: 10.1038/bmt.2017.161] [Citation(s) in RCA: 198] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/22/2017] [Accepted: 05/29/2017] [Indexed: 12/21/2022]
Abstract
The advances in hematopoietic cell transplantation (HCT) over the last decade have led to a transplant-related mortality below 15%. Hepatic sinusoidal obstruction syndrome/veno-occlusive disease (SOS/VOD) is a life-threatening complication of HCT that belongs to a group of diseases increasingly identified as transplant-related, systemic endothelial diseases. In most cases, SOS/VOD resolves within weeks; however, severe SOS/VOD results in multi-organ dysfunction/failure with a mortality rate >80%. A timely diagnosis of SOS/VOD is of critical importance, given the availability of therapeutic options with favorable tolerability. Current diagnostic criteria are used for adults and children. However, over the last decade it has become clear that SOS/VOD is significantly different between the age groups in terms of incidence, genetic predisposition, clinical presentation, prevention, treatment and outcome. Improved understanding of SOS/VOD and the availability of effective treatment questions the use of the Baltimore and Seattle criteria for diagnosing SOS/VOD in children. The aim of this position paper is to propose new diagnostic and severity criteria for SOS/VOD in children on behalf of the European Society for Blood and Marrow Transplantation.
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Affiliation(s)
- S Corbacioglu
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, University of Regensburg, Regensburg, Germany
| | - E Carreras
- Hematology Department, Josep Carreras Foundation & Leukemia Research Institute, Hospital Clínic, Barcelona, Spain
| | - M Ansari
- Hemato-Oncology Unit, Department of Pediatrics, University Hospital of Geneva, Geneva, Switzerland
| | - A Balduzzi
- Pediatric Clinic, University of Milano-Bicocca, San Gerardo Hospital, Milan, Italy
| | - S Cesaro
- Department of Pediatric Oncohematology, Giambattista Rossi University Hospital, Verona, Italy
| | - J-H Dalle
- Department of Hematology and Immunology, Hospital Robert Debre, Paris 7-Paris Diderot University, Paris, France
| | - F Dignan
- Department of Clinical Haematology, Manchester Royal Infirmary, Manchester, UK
| | - B Gibson
- Royal Hospital for Sick Children, Glasgow, UK
| | - T Guengoer
- Division of Blood and Marrow Transplantation, University Children’s Hospital, Zurich, Switzerland
| | - B Gruhn
- Department of Pediatrics, University Hospital of Jena, Jena, Germany
| | - A Lankester
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - F Locatelli
- Department of Pediatric Hematology and Oncology, University of Pavia, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - A Pagliuca
- Department of Haematology, King’s College Hospital, London, UK
| | - C Peters
- Department of Pediatrics, St Anna Kinderspital, Vienna, Austria
| | - P G Richardson
- Division of Hematologic Malignancy, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - A S Schulz
- Department of Pediatrics, University Children’s Hospital, Ulm, Germany
| | - P Sedlacek
- Department of Pediatrics, University Hospital Motol, Prague, Czech Republic
| | - J Stein
- Schneider Children's Medical Center of Israel and Sackler Faculty of Medicine, University of Tel Aviv, Tel Aviv, Israel
| | - K-W Sykora
- Pediatric Hematology-Oncology, Children’s Hospital, Medical School, Hannover, Germany
| | | | - E Trigoso
- University Hospital and Polytechnic La Fe, Valencia, Spain
| | - K Vetteranta
- Children’s Hospital, University of Helsinki, Helsinki, Finland
| | - J Wachowiak
- Department of Pediatric Hematology, Oncology and Hematopoietic Stem Cell Transplantation, University of Medical Sciences, Poznan, Poland
| | - E Wallhult
- Section of Hematology and Coagulation, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - R Wynn
- Royal Manchester Children’s Hospital, Manchester, UK
| | - I Yaniv
- Schneider Children's Medical Center of Israel and Sackler Faculty of Medicine, University of Tel Aviv, Tel Aviv, Israel
| | - A Yesilipek
- Pediatric Stem Cell Transplantation Unit, Bahçeşehir University School of Medicine, Istanbul, Turkey
| | - M Mohty
- Hôpital Saint-Antoine, APHP, Université Pierre & Marie Curie, INSERM UMRS 938, Paris, France
| | - P Bader
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents, University Hospital, Goethe University, Frankfurt/Main, Germany
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26
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Intravenous Busulfan Compared with Treosulfan-Based Conditioning for Allogeneic Stem Cell Transplantation in Acute Myeloid Leukemia: A Study on Behalf of the Acute Leukemia Working Party of European Society for Blood and Marrow Transplantation. Biol Blood Marrow Transplant 2017; 24:751-757. [PMID: 29247780 DOI: 10.1016/j.bbmt.2017.12.776] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 12/07/2017] [Indexed: 12/22/2022]
Abstract
Dose intensity of the conditioning regimen has significant impact on the outcomes after stem cell transplantation (SCT) for acute myeloid leukemia. Most studies have shown more relapse, less nonrelapse mortality (NRM), and similar overall survival after reduced-intensity and myeloablative conditioning. There are limited data on the dose equivalence and expected outcomes of treosulfan-based compared with busulfan-based conditioning. We compared SCT outcomes after fludarabine with either intravenous busulfan at a myeloablative dose (FB4, 12.8 mg/kg, n = 1265) or a reduced dose (FB2, 6.4 mg/kg, n = 1456) or treosulfan at 42 g/m2 (FT14, n = 403) or 36 g/m2 (FT12, n = 168). Median patient age was 48, 60, 57, and 60 years in the FB4, FB2, FT14, and FT12 groups, respectively (P < .0001). Two-year overall survival was 58%, 53%, 53%, and 51%, respectively (P = .25). Multivariate analysis identified advanced age, advanced disease status, and secondary leukemia to be associated with worse survival. Relapse rate was 30%, 35%, 34%, and 40%, respectively. Relapse was more common after FB2, advanced age and disease status, secondary leukemia, and sibling donors. NRM was 17%, 18%, 21%, and 16%, respectively. NRM was least common after FT12 and more common with advanced age and disease status and unrelated donors. Treosulfan-based regimens were associated with lower rates of graft-versus-host disease. There was no difference in any outcome among patients in first complete remission at transplantation. However, there was better survival with treosulfan-based conditioning in advanced leukemia. In conclusion, survival is determined mostly by disease biology and is similar after various regimens. Treosulfan-based conditioning is more similar to myeloablative than to reduced-intensity conditioning but can be administered safely in older patients, with lower rates of graft-versus-host disease and possibly better outcomes in patients with active leukemia.
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Slatter MA, Rao K, Abd Hamid IJ, Nademi Z, Chiesa R, Elfeky R, Pearce MS, Amrolia P, Worth A, Flood T, Abinun M, Hambleton S, Qasim W, Gaspar HB, Cant AJ, Gennery AR, Veys P. Treosulfan and Fludarabine Conditioning for Hematopoietic Stem Cell Transplantation in Children with Primary Immunodeficiency: UK Experience. Biol Blood Marrow Transplant 2017; 24:529-536. [PMID: 29155317 DOI: 10.1016/j.bbmt.2017.11.009] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 11/08/2017] [Indexed: 11/17/2022]
Abstract
We previously published results for 70 children who received conditioning with treosulfan and cyclophosphamide (n = 30) or fludarabine (n = 40) before undergoing hematopoietic stem cell transplantation (HSCT) for primary immunodeficiency (PID). Toxicity was lower and T cell chimerism was better in the patients receiving fludarabine, but cohort numbers were relatively small and follow-up was short. Here we report outcomes of 160 children who received homogeneous conditioning with treosulfan, fludarabine, and, in most cases, alemtuzumab (n = 124). The median age at transplantation was 1.36 years (range, .09 to 18.25 years). Donors included 73 matched unrelated, 54 1 to 3 antigen-mismatched unrelated, 12 matched sibling, 17 other matched family, and 4 haploidentical donors. Stem cell source was peripheral blood stem cells (PBSCs) in 70, bone marrow in 49, and cord blood in 41. Median duration of follow-up was 4.3 years (range, .8 to 9.4 years). Overall survival was 83%. No patients had veno-occlusive disease. Seventy-four patients (46%) had acute GVHD, but only 14 (9%) greater than grade II. Four patients underwent successful retransplantation for graft loss or poor immune reconstitution. Another patient experienced graft rejection and died. There was no association between T cell chimerism >95% and stem cell source, but a significant association was seen between myeloid chimerism >95% and use of PBSCs without an increased risk of significant GVHD compared with other sources. All 11 patients with severe combined immunodeficiency diagnosed at birth were alive at up to 8.7 years of follow-up. Long-term studies are needed to determine late gonadotoxic effects, and pharmacokinetic studies are needed to identify whether specific targeting is advantageous. The combination of treosulfan, fludarabine, and alemtuzumab is associated with excellent results in HSCT for PID.
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Affiliation(s)
- Mary A Slatter
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom.
| | - Kanchan Rao
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
| | - Intan Juliana Abd Hamid
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom; Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Malaysia
| | - Zohreh Nademi
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Robert Chiesa
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
| | - Reem Elfeky
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
| | - Mark S Pearce
- Institute of Health & Society, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Persis Amrolia
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
| | - Austen Worth
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
| | - Terence Flood
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Mario Abinun
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Sophie Hambleton
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Waseem Qasim
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
| | - Hubert B Gaspar
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
| | - Andrew J Cant
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Andrew R Gennery
- Department of Paediatric Immunology, Newcastle upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Paul Veys
- Great Ormond Street Hospital NHS Trust, London, United Kingdom
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Romański M, Mikołajewski J, Główka FK. Effect of Temperature on the Kinetics of the Activation of Treosulfan and Hydrolytic Decomposition of Its Active Epoxy Derivatives. J Pharm Sci 2017; 106:3156-3160. [DOI: 10.1016/j.xphs.2017.05.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 05/16/2017] [Accepted: 05/31/2017] [Indexed: 10/19/2022]
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Shimoni A, Vago L, Bernardi M, Yerushalmi R, Peccatori J, Greco R, Shem-Tov N, Lo Russo A, Danylesko I, Apel A, Bonini C, Lupo Stanghellini MT, Nagler A, Ciceri F. Missing HLA C group 1 ligand in patients with AML and MDS is associated with reduced risk of relapse and better survival after allogeneic stem cell transplantation with fludarabine and treosulfan reduced toxicity conditioning. Am J Hematol 2017. [PMID: 28631269 DOI: 10.1002/ajh.24827] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reduced-toxicity conditioning with fludarabine and treosulfan is a dose-intensive regimen with enhanced anti-leukemia effect and acceptable toxicity in AML/MDS. HLA-C regulates natural-killer (NK) cell function by inhibiting Killer immunoglobulin-like receptors (KIR) and is divided into C1 and C2 epitopes. The missing-ligand theory suggests that missing recipient KIR ligands drives NK-alloreactivity after SCT, in the absence of HLA-mismatch by activating unlicensed donor NK cells. We analyzed SCT outcomes in 203 patients with AML/MDS, median age 58 years, given SCT from matched-siblings (n = 97) or matched-unrelated donors (n = 106), using two treosulfan doses (total 36 or 42 g/m2 ). 34% expressed one HLA-C group 1 allele (C1C1), 19% one HLA-C group 2 allele (C2C2), and 48% both KIR ligands (C1C2). Median follow-up was 48 months. 5-year relapse, nonrelapse mortality (NRM) and leukemia-free survival (LFS) rates were 38%, 27%, and 36%, respectively. Relapse rates were 43%, 45%, and 26% in patients expressing C1C1, C1C2, and C2C2 ligands, respectively (P = .03). Multivariate-analysis identified chemo-refractory disease (HR 3.1, P = .003), poor cytogenetics (HR 1.7, P = .08), female donor to male recipient (HR 0.4, P = .01) and C2C2 ligands (HR 0.4, P = .04) as independent factors predicting relapse. HLA-C ligands were not associated with GVHD or NRM. LFS was 33%, 30%, and 46%, respectively (P = .07). Chemorefractory disease (HR 3.1, P = .0004) and C2C2 group ligand (HR 0.6, P = .06) independently predicted LFS. Treosulfan dose did not predict any SCT outcome. In conclusion, missing HLA-C group 1 ligand is associated with reduced relapse risk, similar NRM and improved LFS, after HLA-matched SCT with treosulfan conditioning in AML/MDS.
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Affiliation(s)
- Avichai Shimoni
- Division of Hematology; Chaim Sheba Medical Center, Tel-Hashoer; Israel
- Sackler Medical School, Tel-Aviv University; Tel-Aviv Israel
| | - Luca Vago
- IRCCS San Raffaele Hospital; Hematology and Bone Marrow Transplantation Unit; Milan Italy
| | - Massimo Bernardi
- IRCCS San Raffaele Hospital; Hematology and Bone Marrow Transplantation Unit; Milan Italy
| | - Ronit Yerushalmi
- Division of Hematology; Chaim Sheba Medical Center, Tel-Hashoer; Israel
| | - Jacopo Peccatori
- IRCCS San Raffaele Hospital; Hematology and Bone Marrow Transplantation Unit; Milan Italy
| | - Raffaella Greco
- IRCCS San Raffaele Hospital; Hematology and Bone Marrow Transplantation Unit; Milan Italy
| | - Noga Shem-Tov
- Division of Hematology; Chaim Sheba Medical Center, Tel-Hashoer; Israel
| | - Alessandro Lo Russo
- IRCCS San Raffaele Hospital; Hematology and Bone Marrow Transplantation Unit; Milan Italy
| | - Ivetta Danylesko
- Division of Hematology; Chaim Sheba Medical Center, Tel-Hashoer; Israel
| | - Arie Apel
- Division of Hematology; Chaim Sheba Medical Center, Tel-Hashoer; Israel
| | - Chiara Bonini
- IRCCS San Raffaele Hospital; Hematology and Bone Marrow Transplantation Unit; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | | | - Arnon Nagler
- Division of Hematology; Chaim Sheba Medical Center, Tel-Hashoer; Israel
- Sackler Medical School, Tel-Aviv University; Tel-Aviv Israel
| | - Fabio Ciceri
- IRCCS San Raffaele Hospital; Hematology and Bone Marrow Transplantation Unit; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
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Romański M, Kasprzyk A, Walczak M, Ziółkowska A, Główka F. Disposition of treosulfan and its active monoepoxide in a bone marrow, liver, lungs, brain, and muscle: Studies in a rat model with clinical relevance. Eur J Pharm Sci 2017; 109:616-623. [PMID: 28916482 DOI: 10.1016/j.ejps.2017.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/19/2017] [Accepted: 09/05/2017] [Indexed: 01/12/2023]
Abstract
For the recent years, the application of treosulfan (TREO)-based conditioning prior to hematopoietic stem cell transplantation (HSCT) has been increasing as an alternative to busulfan-based therapy, especially for patients presenting high risk of developing hepato-, pulmo-, and neurotoxicity. So far, the penetration of TREO and its epoxy-derivatives into central nervous system and aqueous humor of the eye has been investigated. However, lacking knowledge on the compounds distribution into the other key tissues precludes comprehensive understanding and assessment of TREO clinical efficacy and toxicity. In this paper, the disposition of TREO and its active monoepoxide (S,S-EBDM) in a bone marrow, liver, lungs, brain, and quadriceps femoris was studied in an animal model. Male and female adult Wistar rats (n=48/48) received an intraperitoneal injection of TREO at the dose of 500mg/kg b.w. Concentrations of TREO and S,S-EBDM in tissues were determined with a validated HPLC-MS/MS method. Pharmacokinetic calculations were performed in WinNonlin using a noncompartmental analysis. Mean values of the maximal concentrations of TREO and S,S-EBDM in the organs were sex-independent and ranged from 61 to 1650μM and 25-105μM, respectively. No quantifiable levels of S,S-EBDM were found in the liver. Average tissue/plasma area under the curve (AUC) ratio for unbound TREO increased in the sequence: brain (0.10)<muscle (0.77)<bone marrow=lungs (0.82)<liver (0.96). The tissue/plasma AUC ratio for unbound S,S-EBDM changed as follows: brain (0.35)<lungs (0.50)<bone marrow (0.75)<muscle (1.14). Elimination half-lives of the compounds in plasma and the organs ranged from 0.7h to 2.1h. Scaling of the obtained AUCs of TREO and S,S-EBDM and the literature AUCs of busulfan to concentrations of the drugs in HSCT patients' plasma show that TREO reaches much higher levels in the organs than busulfan. Nonetheless, low S,S-EBDM exposure in a liver, lungs, and brain, even compared with busulfan, may contribute to relatively low organ toxicity of TREO-based conditioning regimens. Similarity of the scaled bone marrow AUCs of S,S-EBDM and busulfan corresponds to comparable myeloablative potency of TREO- and busulfan-based conditioning. The biological half-lives of TREO and S,S-EBDM in plasma and the studied organs indicate that 48h lag time following administration of the last dose of TREO to HSCT patients is sufficient to protect the transplanted stem cells from the compounds' exposure.
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Affiliation(s)
- Michał Romański
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Poland.
| | - Anna Kasprzyk
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Poland
| | - Mateusz Walczak
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Poland
| | - Agnieszka Ziółkowska
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poland
| | - Franciszek Główka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, Poland
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Toxicological effects of fludarabine and treosulfan conditioning before allogeneic stem-cell transplantation. Int J Hematol 2017; 106:471-475. [DOI: 10.1007/s12185-017-2320-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 08/15/2017] [Accepted: 08/21/2017] [Indexed: 12/20/2022]
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32
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Nagler A, Labopin M, Beelen D, Ciceri F, Volin L, Shimoni A, Foá R, Milpied N, Peccatori J, Polge E, Mailhol A, Mohty M, Savani BN. Long-term outcome after a treosulfan-based conditioning regimen for patients with acute myeloid leukemia: A report from the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation. Cancer 2017; 123:2671-2679. [DOI: 10.1002/cncr.30646] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Arnon Nagler
- Acute Leukemia Working Party; European Society for Blood and Marrow Transplantation Paris Study Office/European Center for Biostatistical and Epidemiological Evaluation in Hematopoietic Cell Therapy (CEREST-TC); Paris France
- Hematology Division; Chaim Sheba Medical Center; Tel Hashomer Israel
| | - Myriam Labopin
- Acute Leukemia Working Party; European Society for Blood and Marrow Transplantation Paris Study Office/European Center for Biostatistical and Epidemiological Evaluation in Hematopoietic Cell Therapy (CEREST-TC); Paris France
- Department of Hematology; St. Antoine Hospital; Paris France
- INSERM UMR 938; Paris France
- Pierre and Marie Curie University; Paris France
| | - Dietrich Beelen
- Department of Bone Marrow Transplantation; University Hospital; Essen Germany
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit; San Raffaele Scientific Institute; Milano Italy
| | - Liisa Volin
- Stem Cell Transplantation Unit, Comprehensive Cancer Center; Helsinki University Central Hospital; Helsinki Finland
| | - Avichai Shimoni
- Hematology Division; Chaim Sheba Medical Center; Tel Hashomer Israel
| | - Roberto Foá
- Department of Cellular Biotechnology and Hematology; University La Sapienza; Rome Italy
| | - Noel Milpied
- CHU Bordeaux, Hôpital Haut-Leveque; Pessac France
| | - Jacopo Peccatori
- Hematology and Bone Marrow Transplantation Unit; San Raffaele Scientific Institute; Milano Italy
| | - Emmanuelle Polge
- Acute Leukemia Working Party; European Society for Blood and Marrow Transplantation Paris Study Office/European Center for Biostatistical and Epidemiological Evaluation in Hematopoietic Cell Therapy (CEREST-TC); Paris France
| | - Audrey Mailhol
- Acute Leukemia Working Party; European Society for Blood and Marrow Transplantation Paris Study Office/European Center for Biostatistical and Epidemiological Evaluation in Hematopoietic Cell Therapy (CEREST-TC); Paris France
| | - Mohamad Mohty
- Acute Leukemia Working Party; European Society for Blood and Marrow Transplantation Paris Study Office/European Center for Biostatistical and Epidemiological Evaluation in Hematopoietic Cell Therapy (CEREST-TC); Paris France
- Department of Hematology; St. Antoine Hospital; Paris France
- INSERM UMR 938; Paris France
- Pierre and Marie Curie University; Paris France
| | - Bipin N. Savani
- Acute Leukemia Working Party; European Society for Blood and Marrow Transplantation Paris Study Office/European Center for Biostatistical and Epidemiological Evaluation in Hematopoietic Cell Therapy (CEREST-TC); Paris France
- Long-Term Transplantation Clinic; Vanderbilt University Medical Center; Nashville Tennessee
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33
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Romański M, Ratajczak W, Główka F. Kinetic and Mechanistic Study of the pH-Dependent Activation (Epoxidation) of Prodrug Treosulfan Including the Reaction Inhibition in a Borate Buffer. J Pharm Sci 2017; 106:1917-1922. [DOI: 10.1016/j.xphs.2017.03.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 03/08/2017] [Accepted: 03/16/2017] [Indexed: 11/30/2022]
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34
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Determination of prodrug treosulfan and its biologically active monoepoxide in rat plasma, liver, lungs, kidneys, muscle, and brain by HPLC–ESI–MS/MS method. J Pharm Biomed Anal 2017; 140:122-129. [DOI: 10.1016/j.jpba.2017.03.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/08/2017] [Accepted: 03/14/2017] [Indexed: 01/07/2023]
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35
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Morton LM, Saber W, Baker KS, Barrett AJ, Bhatia S, Engels EA, Gadalla SM, Kleiner DE, Pavletic S, Burns LJ. National Institutes of Health Hematopoietic Cell Transplantation Late Effects Initiative: The Subsequent Neoplasms Working Group Report. Biol Blood Marrow Transplant 2017; 23:367-378. [PMID: 27634019 PMCID: PMC5285307 DOI: 10.1016/j.bbmt.2016.09.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 09/06/2016] [Indexed: 01/06/2023]
Abstract
Subsequent neoplasms (SN) after hematopoietic cell transplantation (HCT) cause significant patient morbidity and mortality. Risks for specific SN types vary substantially, with particularly elevated risks for post-transplantation lymphoproliferative disorders, myelodysplastic syndrome/acute myeloid leukemia, and squamous cell malignancies. This document provides an overview of the current state of knowledge regarding SN after HCT and recommends priorities and approaches to overcome challenges and gaps in understanding. Numerous factors have been suggested to affect risk, including patient-related (eg, age), primary disease-related (eg, disease type, pre-HCT therapies), and HCT-related characteristics (eg, type and intensity of conditioning regimen, stem cell source, development of graft-versus-host disease). However, gaps in understanding remain for each of these risk factors, particularly for patients receiving HCT in the current era because of substantial advances in clinical transplantation practices. Additionally, the influence of nontransplantation-related risk factors (eg, germline genetic susceptibility, oncogenic viruses, lifestyle factors) is poorly understood. Clarification of the magnitude of SN risks and identification of etiologic factors will require large-scale, long-term, systematic follow-up of HCT survivors with detailed clinical data. Most investigations of the mechanisms of SN pathogenesis after HCT have focused on immune drivers. Expansion of our understanding in this area will require interdisciplinary laboratory collaborations utilizing measures of immune function and availability of archival tissue from SN diagnoses. Consensus-based recommendations for optimal preventive, screening, and therapeutic approaches have been developed for certain SN after HCT, whereas for other SN, general population guidelines are recommended. Further evidence is needed to specifically tailor preventive, screening, and therapeutic guidelines for SN after HCT, particularly for unique patient populations. Accomplishment of this broad research agenda will require increased investment in systematic data collection with engagement from patients, clinicians, and interdisciplinary scientists to reduce the burden of SN in the rapidly growing population of HCT survivors.
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Affiliation(s)
- Lindsay M Morton
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
| | - Wael Saber
- Center for International Blood and Marrow Transplant Research, Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - K Scott Baker
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - A John Barrett
- Stem Cell Transplantation Section, Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - Smita Bhatia
- Institute for Cancer Outcomes and Survivorship, University of Alabama at Birmingham, Birmingham, Alabama
| | - Eric A Engels
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Shahinaz M Gadalla
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - David E Kleiner
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Steven Pavletic
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Linda J Burns
- National Marrow Donor Program/Be The Match and Center for International Blood and Marrow Transplant Research, Minneapolis, Minnesota
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Sakellari I, Mallouri D, Gavriilaki E, Batsis I, Kaliou M, Constantinou V, Papalexandri A, Lalayanni C, Vadikolia C, Athanasiadou A, Yannaki E, Sotiropoulos D, Smias C, Anagnostopoulos A. Survival Advantage and Comparable Toxicity in Reduced-Toxicity Treosulfan-Based versus Reduced-Intensity Busulfan-Based Conditioning Regimen in Myelodysplastic Syndrome and Acute Myeloid Leukemia Patients after Allogeneic Hematopoietic Cell Transplantation. Biol Blood Marrow Transplant 2017; 23:445-451. [DOI: 10.1016/j.bbmt.2016.11.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 11/29/2016] [Indexed: 12/28/2022]
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Lucchini G, Labopin M, Beohou E, Dalissier A, Dalle JH, Cornish J, Zecca M, Samarasinghe S, Gibson B, Locatelli F, Bertrand Y, Abdel-Rahman F, Socie G, Sundin M, Lankester A, Sedlacek P, Hamladji RM, Heilmann C, Afanasyev B, Hough R, Peters C, Bader P, Veys P. Impact of Conditioning Regimen on Outcomes for Children with Acute Myeloid Leukemia Undergoing Transplantation in First Complete Remission. An Analysis on Behalf of the Pediatric Disease Working Party of the European Group for Blood and Marrow Transplantation. Biol Blood Marrow Transplant 2016; 23:467-474. [PMID: 27916512 DOI: 10.1016/j.bbmt.2016.11.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 11/29/2016] [Indexed: 01/26/2023]
Abstract
Hematopoietic stem cell transplantation (HSCT) represents the cornerstone of treatment in pediatric high-risk and relapsed acute myeloid leukemia (AML). The aim of the present study was to compare outcomes of pediatric patients with AML undergoing HSCT using 3 different conditioning regimens: total body irradiation (TBI) and cyclophosphamide (Cy); busulfan (Bu) and Cy; or Bu, Cy, and melphalan (Mel). In this retrospective study, registry data for patients > 2 and <18 years age undergoing matched allogeneic HSCT for AML in first complete remission (CR1) in 204 European Group for Blood and Marrow Transplantation centers between 2000 and 2010 were analyzed. Data were available for 631 patients; 458 patients received stem cells from a matched sibling donor and 173 from a matched unrelated donor. For 440 patients, bone marrow was used as stem cell source, and 191 patients received peripheral blood stem cells. One hundred nine patients received TBICy, 389 received BuCy, and 133 received BuCyMel as their preparatory regimen. Median follow-up was 55 months. Patients receiving BuCyMel showed a lower incidence of relapse at 5 years (14.7% versus 31.5% in BuCy versus 30% in TBICy, P < .01) and higher overall survival (OS) (76.6% versus 64% versus 64.5%, P = .04) and leukemia-free survival (LFS) (74.5% versus 58% versus 61.9%, P < .01), with a comparable nonrelapse mortality (NRM) (10.8% versus 10.5% versus 8.1%, P = .79). Acute graft-versus-host disease (GVHD) grades III and IV but not chronic GVHD, was higher in patients receiving BuCyMel. Older age at HSCT had an adverse impact on NRM and the use of peripheral blood as stem cell source was associated with increased chronic GVHD and NRM as well as lower LFS and OS. Among pediatric patients receiving HSCT for AML in CR1, the use of BuCyMel conditioning proved superior to TBICy and BuCy in reducing relapse and improving LFS.
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Affiliation(s)
- Giovanna Lucchini
- Bone Marrow Transplant Department, Great Ormond Street Hospital, London, United Kingdom.
| | - Myriam Labopin
- BMT Statistical Unit, European Group for Blood and Marrow Transplantation Office, Universite' Pierre et Marie Curie, Paris, France
| | - Eric Beohou
- BMT Statistical Unit, European Group for Blood and Marrow Transplantation Office, Universite' Pierre et Marie Curie, Paris, France
| | - Arnauld Dalissier
- BMT Statistical Unit, European Group for Blood and Marrow Transplantation Office, Universite' Pierre et Marie Curie, Paris, France
| | | | - Jacqueline Cornish
- Paediatric Haematology/Oncology Department, Bristol Royal Hospital for Children, Bristol, United Kingdom
| | - Marco Zecca
- Pediatric Hematology-Oncology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Sujith Samarasinghe
- Bone Marrow Transplant Department, Great Ormond Street Hospital, London, United Kingdom
| | - Brenda Gibson
- Haematology Department, Royal Hospital for Sick Children, Glasgow, United Kingdom
| | - Franco Locatelli
- Pediatric Hematology-Oncology Department, IRCCS Bambino Gesu' Children Hospital, Rome, Italy
| | - Yves Bertrand
- Pediatric Hematology and Oncology Department, Institut d'Hématologie et d'Oncologie Pédiatriqu, Lyon, France
| | - Fawzi Abdel-Rahman
- Bone Marrow and Stem Cell Transplantation Department, King Hussein Cancer Centre, Amman, Jordan
| | - Gerald Socie
- Hematology/Transplantation Department, Hôpital St. Louis, Paris, France
| | - Mikael Sundin
- Hematology/Immunology/SCT Department, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Arjan Lankester
- Pediatrics Department, Division of Immuno-Hematology and Stem Cell Transplantation Leiden University Hospital, The Netherlands
| | - Peter Sedlacek
- Paediatric Haematology & Oncology Department, University Hospital Motol, Prague, Czech Republic
| | | | - Carsten Heilmann
- Paediatrics and Adolescent Medicine Department, Rigshospitalet, Copenhagen, Denmark
| | - Boris Afanasyev
- Hematology and Transplantology Department, Saint Petersburg State Medical Pavlov University, Ratsa Gorbacheva Memorial Children's Institute, St. Petersburg, Russia
| | - Rachel Hough
- Stem Cell Transplantation Department, University College Hospital, London, United Kingdom
| | - Cristina Peters
- Stem Cell Transplantation Department, St. Anna Kinderspital, Vienna, Austria
| | - Peter Bader
- Stem Cell Transplantation and Immunology Department, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main, Germany
| | - Paul Veys
- Bone Marrow Transplant Department, Great Ormond Street Hospital, London, United Kingdom
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