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Ben Hassine K, Seydoux C, Khier S, Daali Y, Medinger M, Halter J, Heim D, Chalandon Y, Schanz U, Nair G, Cantoni N, Passweg JR, Satyanarayana Uppugunduri CR, Ansari M. Pharmacokinetic Modeling and Simulation with Pharmacogenetic Insights Support the Relevance of Therapeutic Drug Monitoring for Myeloablative Busulfan Dosing in Adult HSCT. Transplant Cell Ther 2024; 30:332.e1-332.e15. [PMID: 38081414 DOI: 10.1016/j.jtct.2023.12.003] [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: 09/17/2023] [Revised: 11/08/2023] [Accepted: 12/04/2023] [Indexed: 01/01/2024]
Abstract
Therapeutic drug monitoring (TDM) of busulfan (Bu) is well-established in pediatric hematopoietic stem cell transplantation (HSCT), but its use in adults is limited due to a lack of clear recommendations and scarcity of evidence regarding its utility. GSTA1 promoter variants are reported to affect Bu clearance in both adults and pediatric patients. This study aimed to evaluate the value of preemptive genotyping GSTA1 and body composition (obesity) in individualizing Bu dosing in adults, through pharmacokinetic (PK) modeling and simulations. A population pharmacokinetic (PopPK) model was developed and validated with data from 60 adults who underwent HSCT. Simulations assessed different dosing scenarios based on body size metrics and GSTA1 genotypes. Due to the limited number of obese patients in the cohort, the effect of obesity on Bu pharmacokinetics (PK) was evaluated in silico using a physiologically-based pharmacokinetic (PBPK) model and relevant virtual populations from Simcyp software. Patients with at least 1 GSTA1*B haplotype had 17% lower clearance on average. PopPK simulations indicated that adjusting doses based on genotype increased the probability of achieving the target exposure (3.7 to 5.5 mg.h/L) from 53% to 60 % in GSTA1*A homozygous patients, and from 50% to 61% in *B carriers. Still, Approximately 40% of patients would not achieve this therapeutic window without TDM. A 2-sample optimal design was validated for routine model-based Bu first dose AUC0-∞ estimation, and the model was implemented in the Tucuxi user-friendly TDM software. PBPK simulations confirmed body surface area-based doses of 29 to 31 mg/m2/6h as the most appropriate, regardless of obesity status. This study emphasizes the importance of individualized Bu dosing strategies in adults to achieve therapeutic targets. Preemptive genotyping alone may not have a significant clinical impact, and routine TDM may be necessary for optimal transplantation outcomes.
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Affiliation(s)
- Khalil Ben Hassine
- Department of Pediatrics, Gynecology and Obstetrics, Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Claire Seydoux
- Division of Hematology, University Hospital of Basel, Basel, Switzerland
| | - Sonia Khier
- Pharmacokinetic and Modeling Department, School of Pharmacy, Montpellier University, Montpellier, France; Probabilities and Statistics Department, Institut Montpelliérain Alexander Grothendieck (IMAG), CNRS, UMR 5149, Inria, Montpellier University, Montpellier, France
| | - Youssef Daali
- Division of Clinical Pharmacology and Toxicology, University Hospital of Geneva, Geneva, Switzerland; Faculty of Medicine & Sciences, University of Geneva, Geneva, Switzerland
| | - Michael Medinger
- Division of Hematology, University Hospital of Basel, Basel, Switzerland and University Basel, Basel, Switzerland
| | - Joerg Halter
- Division of Hematology, University Hospital of Basel, Basel, Switzerland and University Basel, Basel, Switzerland
| | - Dominik Heim
- Division of Hematology, University Hospital of Basel, Basel, Switzerland and University Basel, Basel, Switzerland
| | - Yves Chalandon
- Division of Hematology, Bone Marrow Transplant Unit, University Hospital of Geneva and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Urs Schanz
- Department of Medical Oncology and Hematology, University Hospital of Zurich, Zurich, Switzerland
| | - Gayathri Nair
- Department of Medical Oncology and Hematology, University Hospital of Zurich, Zurich, Switzerland
| | - Nathan Cantoni
- Division of Oncology, Hematology and Transfusion Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Jakob R Passweg
- Division of Hematology, University Hospital of Basel, Basel, Switzerland and University Basel, Basel, Switzerland
| | - Chakradhara Rao Satyanarayana Uppugunduri
- Department of Pediatrics, Gynecology and Obstetrics, Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Marc Ansari
- Department of Pediatrics, Gynecology and Obstetrics, Cansearch Research Platform for Pediatric Oncology and Hematology, 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.
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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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Jansen SA, Cutilli A, de Koning C, van Hoesel M, Sierra LS, Nierkens S, Mokry M, Nieuwenhuis EES, Hanash AM, Mocholi E, Coffer PJ, Lindemans CA. Chemotherapy-induced intestinal injury promotes Galectin-9-driven modulation of T cell function. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.30.538862. [PMID: 37163028 PMCID: PMC10168344 DOI: 10.1101/2023.04.30.538862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The intestine is vulnerable to chemotherapy-induced toxicity due to its high epithelial proliferative rate, making gut toxicity an off-target effect in several cancer treatments, including conditioning regimens for allogeneic hematopoietic cell transplantation (allo-HCT). In allo-HCT, intestinal damage is an important factor in the development of Graft-versus-Host Disease (GVHD), an immune complication in which donor immune cells attack the recipient's tissues. Here, we developed a novel human intestinal organoid-based 3D model system to study the direct effect of chemotherapy-induced intestinal epithelial damage on T cell behavior. Chemotherapy treatment using busulfan, fludarabine, and clofarabine led to damage responses in organoids resulting in increased T cell migration, activation, and proliferation in ex- vivo co-culture assays. We identified galectin-9 (Gal-9), a beta-galactoside-binding lectin released by damaged organoids, as a key molecule mediating T cell responses to damage. Increased levels of Gal-9 were also found in the plasma of allo-HCT patients who later developed acute GVHD, supporting the predictive value of the model system in the clinical setting. This study highlights the potential contribution of chemotherapy-induced epithelial damage to the pathogenesis of intestinal GVHD through direct effects on T cell activation and trafficking promoted by galectin-9.
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Pandu B, Khanna D, Mohandass P, Elavarasan R, Ninan H, Vivek TR, Jacob S. A Phantom Study on Feasibility of Manual Field-in-Field Clinical Implementation for Total Body Irradiation and Comparison of Midplane Dose with Different Bilateral TBI Techniques. J Med Phys 2023; 48:59-67. [PMID: 37342604 PMCID: PMC10277292 DOI: 10.4103/jmp.jmp_103_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 06/23/2023] Open
Abstract
Objective The aim of this study is to implement a new treatment technique in total body irradiation (TBI) using the manual field-in-field-TBI (MFIF-TBI) technique and dosimetrically verifying its results with respect to compensator-based TBI (CB-TBI) and open field TBI technique. Materials and Methods A rice flour phantom (RFP) was placed on TBI couch with knee bent position at 385 cm source to surface distance. Midplane depth (MPD) was calculated for skull, umbilicus, and calf regions by measuring separations. Three subfields were opened manually for different regions using the multi-leaf collimator and jaws. The treatment Monitor unit (MU) was calculated based on each subfield size. In the CB-TBI technique, Perspex was used as a compensator. Treatment MU was calculated using MPD of umbilicus region and the required compensator thickness was calculated. For open field TBI, treatment MU was calculated using MPD of umbilicus region, and the treatment was executed without placing compensator. The diodes were placed on the surface of RFP to measure the delivered dose and the results were compared. Results The MFIF-TBI results showed that the deviation was within ± 3.0% for the different regions, except for the neck for which the deviation was 8.72%. In the CB-TBI delivery, the dose deviation was ± 3.0% for different regions in the RFP. The open field TBI results showed that the dose deviation was not within the limit ± 10.0%. Conclusion The MFIF-TBI technique can be implemented for TBI treatment as no TPS is required, and laborious process of making a compensator can be avoided while ensuring that the dose uniformity in all the regions within the tolerance limit.
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Affiliation(s)
- Bharath Pandu
- Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
- Department of Radiotherapy, Bangalore Baptist Hospital, Bengaluru, Karnataka, India
| | - D. Khanna
- Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
| | - P. Mohandass
- Department of Radiation Oncology, Fortis Hospital, Sahibzada Ajit Singh Nagar, Punjab, India
| | - Rajadurai Elavarasan
- Department of Radiotherapy, Bangalore Baptist Hospital, Bengaluru, Karnataka, India
| | - Hima Ninan
- Department of Radiotherapy, Bangalore Baptist Hospital, Bengaluru, Karnataka, India
| | - T. R. Vivek
- Department of Radiation Oncology, Tawam Hospital, Abu Dhabi, UAE
| | - Saro Jacob
- Department of Radiotherapy, Bangalore Baptist Hospital, Bengaluru, Karnataka, India
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[Chinese expert consensus of allogeneic hematopoietic stem cell transplantation for pediatric acute lymphoblastic leukemia (2022)]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2022; 43:793-801. [PMID: 36709192 PMCID: PMC9669632 DOI: 10.3760/cma.j.issn.0253-2727.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Could (should) we abandon total body irradiation for conditioning in children with leukemia. Blood Rev 2022; 56:100966. [DOI: 10.1016/j.blre.2022.100966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/06/2022] [Accepted: 04/19/2022] [Indexed: 11/21/2022]
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van der Stoep MYEC, Oostenbrink LVE, Bredius RGM, Moes DJAR, Guchelaar HJ, Zwaveling J, Lankester AC. Therapeutic Drug Monitoring of Conditioning Agents in Pediatric Allogeneic Stem Cell Transplantation; Where do We Stand? Front Pharmacol 2022; 13:826004. [PMID: 35330826 PMCID: PMC8940165 DOI: 10.3389/fphar.2022.826004] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/18/2022] [Indexed: 11/13/2022] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is an established curative treatment that has significantly improved clinical outcome of pediatric patients with malignant and non-malignant disorders. This is partly because of the use of safer and more effective combinations of chemo- and serotherapy prior to HSCT. Still, complications due to the toxicity of these conditioning regimens remains a major cause of transplant-related mortality (TRM). One of the most difficult challenges to further improve HSCT outcome is reducing toxicity while maintaining efficacy. The use of personalized dosing of the various components of the conditioning regimen by means of therapeutic drug monitoring (TDM) has been the topic of interest in the last decade. TDM could play an important role, especially in children who tend to show greater pharmacokinetic variability. However, TDM should only be performed when it has clear added value to improve clinical outcome or reduce toxicity. In this review, we provide an overview of the available evidence for the relationship between pharmacokinetic parameters and clinical outcome or toxicities of the most commonly used conditioning agents in pediatric HSCT.
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Affiliation(s)
- M. Y. Eileen C. van der Stoep
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, Netherlands
- *Correspondence: M. Y. Eileen C. van der Stoep,
| | - Lisa V. E. Oostenbrink
- Willem-Alexander Children’s Hospital, Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Robbert G. M. Bredius
- Willem-Alexander Children’s Hospital, Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Dirk Jan A. R. Moes
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, Netherlands
| | - Henk-Jan Guchelaar
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, Netherlands
| | - Juliette Zwaveling
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, Netherlands
| | - Arjan C. Lankester
- Willem-Alexander Children’s Hospital, Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
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Incidence of subsequent malignancies after total body irradiation-based allogeneic HSCT in children with ALL - long-term follow-up from the prospective ALL-SCT 2003 trial. Leukemia 2022; 36:2567-2576. [PMID: 36097283 PMCID: PMC9613465 DOI: 10.1038/s41375-022-01693-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/24/2022]
Abstract
Total body irradiation (TBI)-based conditioning is associated with superior leukemia-free survival in children with ALL undergoing HSCT. However, the risk for subsequent malignant neoplasms (SMN) remains a significant concern. We analyzed 705 pediatric patients enrolled in the prospective ALL-SCT-BFM-2003 trial and its subsequent registry. Patients >2 years received conditioning with TBI 12 Gy/etoposide (n = 558) and children ≤2 years of age or with contraindications for TBI received busulfan/cyclophosphamide/etoposide (n = 110). The 5- and 10-year cumulative incidence of SMN was 0.02 ± 0.01 and 0.13 ± 0.03, respectively. In total, 39 SMN (34 solid tumors, 5 MDS/AML) were diagnosed in 33 patients at a median of 5.8 years (1.7-13.4), exclusively in the TBI group. Of 33 affected patients, 21 (64%) are alive at a median follow-up of 5.1 years (0-9.9) after diagnosis of their first SMN. In univariate analysis, neither age at HSCT, donor type, acute GVHD, chronic GVHD, nor CMV constituted a significant risk factor for SMN. The only significant risk factor was TBI versus non-TBI based conditioning. This analysis confirms and quantifies the increased risk of SMN in children with ALL after conditioning with TBI. Future strategies to avoid TBI will need careful tailoring within prospective, controlled studies to prevent unfavorable outcomes.
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