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Saglio F, Pagliara D, Zecca M, Balduzzi A, Cattoni A, Prete A, Tambaro FP, Faraci M, Calore E, Locatelli F, Fagioli F. Long-Term Complications after Allogeneic Hematopoietic Stem Cell Transplantation with Treosulfan- or Busulfan-Based Conditioning in Pediatric Patients with Acute Leukemia or Myelodysplastic Syndrome: Results of an Associazione Italiana Ematologia Oncologia Pediatrica Retrospective Study. Transplant Cell Ther 2024; 30:433.e1-433.e10. [PMID: 38176654 DOI: 10.1016/j.jtct.2023.12.671] [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: 11/01/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
Patients undergoing hematopoietic stem cell transplantation (HSCT) for hematologic malignancies during childhood have an increased risk of developing long-term sequelae that are in part attributable to the conditioning regimen. The present study aimed to assess the occurrence of long-term toxicities in a population of children who underwent HSCT for hematologic malignancies using either treosulfan or busulfan in the conditioning regimen. The cumulative incidences of growth impairment, altered gonadal function, altered thyroid function, cataracts, secondary malignant neoplasia, and altered pulmonary function were evaluated retrospectively by univariable and multivariable analyses in a population of 521 pediatric patients with acute leukemias or myelodysplastic syndromes treated in 20 Italian transplant centers affiliated with the Associazione Italiana Ematologia ed Oncologia Pediatrica (AIEOP). The median duration of follow-up for the entire study population was 7.1 years (range, 1 to 16 years). Overall, a larger proportion of patients given busulfan developed long-term toxicities compared to patients treated with treosulfan (34% versus 20%; P = .01). In univariable analysis, gonadal toxicity developed in 10% of patients who received treosulfan (95% confidence interval [CI], 3% to 15%), compared with 38% (95% CI, 24% to 39%) of busulfan-treated patients (P = .02), and this finding was confirmed by multivariable analysis (relative risk, .51; 95% CI, .34 to .76; P = .0009). We did not find any statistically significant associations between the occurrence of other long-term toxicities and the use of either busulfan or treosulfan. This study provides evidence that the use of treosulfan is correlated with a reduced incidence of gonadal toxicity in children undergoing HSCT for hematologic malignancies.
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Affiliation(s)
- Francesco Saglio
- Paediatric Onco-Haematology Division, Regina Margherita Children's Hospital AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Daria Pagliara
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Marco Zecca
- Pediatric Hematology/Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Adriana Balduzzi
- Department of Pediatrics, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy; School of Medicine and Surgery, University of di Milano-Bicocca, Monza, Italy
| | - Alessandro Cattoni
- Department of Pediatrics, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy; School of Medicine and Surgery, University of di Milano-Bicocca, Monza, Italy
| | - Arcangelo Prete
- Pediatric Oncology and Hematology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | - Maura Faraci
- Hematopoietic stem cell Transplant Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Elisabetta Calore
- Pediatric Hematology, Oncology and Stem Cell Transplant Division, University Hospital of Padua, Padua, Italy
| | - Franco Locatelli
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy; Catholic University of the Sacred Heart, Rome, Italy
| | - Franca Fagioli
- Paediatric Onco-Haematology Division, Regina Margherita Children's Hospital AOU Città della Salute e della Scienza di Torino, Turin, Italy; Università degli Studi di Torino, Turin, Italy.
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Oved JH, Gibson NM, Venella K, Elgarten CW, Wray L, Warren JT, Olson TS. Reduced toxicity matched sibling bone marrow transplant results in excellent outcomes for severe congenital neutropenia. Front Immunol 2024; 15:1369243. [PMID: 38469307 PMCID: PMC10925630 DOI: 10.3389/fimmu.2024.1369243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/12/2024] [Indexed: 03/13/2024] Open
Abstract
Severe congenital neutropenia (SCN) is caused by germline mutations, most commonly in ELANE, impacting neutrophil maturation and leading to high risk of life-threatening infections. Most patients with ELANE-mutant SCN can achieve safe neutrophil counts with chronic Granulocyte-Colony Stimulating Factor (G-CSF). However, up to 10% of patients have neutropenia refractory to G-CSF and require allogeneic stem cell transplant. Traditional conditioning for these patients includes busulfan and cyclophosphamide which is associated with significant toxicities. We present five patients with SCN without myeloid malignancy transplanted using a reduced toxicity regimen of busulfan, fludarabine and thymoglobulin. 5 pediatric patients with SCN underwent matched sibling donor bone marrow transplant (MSD-BMT) between 2014-2022 on or per CHP14BT057 (NCT02928991), a prospective, single center trial testing elimination of cyclophosphamide from conditioning in pediatric patients with single lineage inherited BMF syndromes. All patients had MSDs and no evidence of MDS. Conditioning consisted of PK-adjusted busulfan, fludarabine, and thymoglobulin, with calcineurin inhibitor and mycophenolate mofetil GVHD prophylaxis. With median follow-up of 48.4 months, overall and event-free survival were 100%. There was no acute GVHD and one instance of chronic limited GVHD. Patients exhibited >95% donor myeloid chimerism at 5 years post-BMT. Two patients experienced CMV reactivation without end-organ disease, and no other viral reactivation or significant infections occurred. MSD-BMT with reduced toxicity myeloablation for SCN provides excellent outcomes while minimizing toxicity. These data suggest that busulfan, fludarabine, and ATG can be considered an efficacious, low-toxicity standard of care regimen for patients with SCN undergoing MSD-BMT.
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Affiliation(s)
- Joseph H. Oved
- Division of Pediatric Transplantation & Cellular Therapies, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Nora M. Gibson
- Division of Oncology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Division of Hematology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Kimberly Venella
- Division of Oncology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Caitlin W. Elgarten
- Division of Oncology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Lisa Wray
- Division of Oncology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Julia T. Warren
- Division of Hematology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Timothy S. Olson
- Division of Oncology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
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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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Wu W, Xue N, Yang H, Gao P, Guo J, Han D. Treosulfan Versus Busulfan-based Conditioning in Pediatric Patients Undergoing Hematopoietic Stem Cell Transplantation: A Systematic Review and Meta-analysis. J Pediatr Hematol Oncol 2023; 45:370-376. [PMID: 37526377 DOI: 10.1097/mph.0000000000002735] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/20/2023] [Indexed: 08/02/2023]
Abstract
It is unclear whether there is a difference in outcomes with treosulfan or busulfan-based conditioning in pediatric patients undergoing hematopoietic stem cell transplantation (HSCT). We reviewed the evidence on this topic through a systematic review and meta-analysis, the comparison between treosulfan and busulfan-based conditioning in pediatric patients undergoing HSCT for instance. Six studies were included. Meta-analysis showed that there was no difference in the incidence of acute graft versus host disease (odds ratio [OR]: 0.96; 95% CI: 0.57, 1.61), grade II to IV acute graft versus host disease (OR: 1.19; 95% CI: 0.83, 1.72), chronic GVHD (OR: 1.18; 95% CI: 0.70, 2.00), and veno-occlusive disease (OR: 0.92; 95% CI: 0.22, 3.85) between treosulfan and busulfan groups. Pooled analysis indicated marginally better survival with treosulfan-based conditioning (OR: 1.57; 95% CI: 1.00, 2.44), however, these results were unstable on sensitivity analysis. A meta-analysis found no difference in transplant-related mortality (OR: 0.70; 95% CI: 0.34, 1.42) between the two groups. Retrospective data from a heterogenous population indicates that there is no difference in the rate of GVHD after treosulfan versus busulfan-based conditioning for pediatric HSCT. A marginal improvement in survival was noted with treosulfan but the results remained unstable. Future randomized controlled trials are needed to provide better evidence.
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Affiliation(s)
- Wanliang Wu
- Department of Pediatric Hematology and Oncology, Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
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