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Pichler H, Sedlacek P, Meisel R, Beier R, Faraci M, Kalwak K, Ifversen M, Müller I, Stein J, Vettenranta K, Kropshofer G, Kolenova A, Karlhuber S, Glogova E, Poetschger U, Peters C, Suttorp M, Matthes-Leodolter S, Balduzzi A. Haematopoietic stem cell transplantation after reduced intensity conditioning in children and adolescents with chronic myeloid leukaemia: A prospective multicentre trial of the I-BFM Study Group. Br J Haematol 2024. [PMID: 38803040 DOI: 10.1111/bjh.19535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/09/2024] [Indexed: 05/29/2024]
Abstract
This prospective multicentre trial evaluated the safety and the efficacy of a thiotepa/melphalan-based reduced intensity conditioning (RIC) haematopoietic stem cell transplantation (HSCT) in children and adolescents with chronic myeloid leukaemia (CML) in chronic phase (CP). Thirty-two patients were transplanted from matched siblings or matched unrelated donors. In 22 patients, HSCT was performed due to insufficient molecular response or loss of response to first- or second-generation tyrosine kinase inhibitor (TKI), with pretransplant BCR::ABL1 transcripts ranging between 0.001% and 33%. The protocol included a BCR::ABL1-guided intervention with TKI retreatment in the first year and donor lymphocyte infusions (DLI) in the second-year post-transplant. All patients engrafted. The 1-year transplant-related mortality was 3% (confidence interval [CI]: 0%-6%). After a median follow-up of 6.3 years, 5-year overall survival and event-free survival are 97% (CI: 93%-100%) and 91% (CI: 79%-100%) respectively. The current 5-year leukaemia-free survival with BCR::ABL1 <0.01% is 97% (CI: 88%-100%) and the current TKI- and DLI-free survival is 95% (CI: 85%-100%). The incidence of chronic graft-versus-host disease (GvHD) was 32%, being severe in four patients (13%). At last follow-up, 31 patients are GvHD-free and have stopped immunosuppression. RIC HSCT following pretreatment with TKI is feasible and effective in children and adolescents with CP-CML with an excellent disease-free and TKI-free survival.
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Affiliation(s)
- Herbert Pichler
- Department of Paediatric Haematology and Oncology, St. Anna Children's Hospital, Vienna, Austria
- Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
- Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria
| | - Petr Sedlacek
- Department of Paediatric Haematology and Oncology, University Hospital Motol, Charles University, Prague, Czech Republic
| | - Roland Meisel
- Division of Pediatric Stem Cell Therapy, Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - Rita Beier
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Maura Faraci
- Hematopoietic Stem Cell Transplantation Unit, Department of Hematology and Oncology, IRCCS Institute G. Gaslini, Genoa, Italy
| | - Krzysztof Kalwak
- Clinical Department of Paediatric Bone Marrow Transplantation, Oncology and Haematology, Wrocław Medical University, Wrocław, Poland
| | - Marianne Ifversen
- Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Ingo Müller
- Division of Pediatric Stem Cell Transplantation and Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jerry Stein
- Department of Hematology-Oncology, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
| | - Kim Vettenranta
- Paediatric Haemato-Oncology, University of Helsinki, Helsinki, Finland
| | - Gabriele Kropshofer
- Department of Pediatrics, Medical University of Innsbruck, Innsbruck, Austria
| | - Alexandra Kolenova
- Department of Pediatric Hematology and Oncology, Faculty of Medicine, Children's Haematology and Oncology Clinic, Comenius University in Bratislava, Bratislava, Slovakia
| | - Susanne Karlhuber
- Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria
| | - Evgenia Glogova
- Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria
| | - Ulrike Poetschger
- Department of Paediatric Haematology and Oncology, St. Anna Children's Hospital, Vienna, Austria
- Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
- Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria
| | - Christina Peters
- Department of Paediatric Haematology and Oncology, St. Anna Children's Hospital, Vienna, Austria
- Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
- Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria
| | - Meinolf Suttorp
- Paediatric Haemato-Oncology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Susanne Matthes-Leodolter
- Department of Paediatric Haematology and Oncology, St. Anna Children's Hospital, Vienna, Austria
- Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
- Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria
| | - Adriana Balduzzi
- Pediatric Transplant Unit, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
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Centanni M, Zaher O, Elhad D, Karlsson MO, Friberg LE. Physiologically-based pharmacokinetic models versus allometric scaling for prediction of tyrosine-kinase inhibitor exposure from adults to children. Cancer Chemother Pharmacol 2024:10.1007/s00280-024-04678-0. [PMID: 38782791 DOI: 10.1007/s00280-024-04678-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 05/06/2024] [Indexed: 05/25/2024]
Abstract
PURPOSE Model-based methods can predict pediatric exposure and support initial dose selection. The aim of this study was to evaluate the performance of allometric scaling of population pharmacokinetic (popPK) versus physiologically based pharmacokinetic (PBPK) models in predicting the exposure of tyrosine kinase inhibitors (TKIs) for pediatric patients (≥ 2 years), based on adult data. The drugs imatinib, sunitinib and pazopanib were selected as case studies due to their complex PK profiles including high inter-patient variability, active metabolites, time-varying clearances and non-linear absorption. METHODS Pediatric concentration measurements and adult popPK models were derived from the literature. Adult PBPK models were generated in PK-Sim® using available physicochemical properties, calibrated to adult data when needed. PBPK and popPK models for the pediatric populations were translated from the models for adults and were used to simulate concentration-time profiles that were compared to the observed values. RESULTS Ten pediatric datasets were collected from the literature. While both types of models captured the concentration-time profiles of imatinib, its active metabolite, sunitinib and pazopanib, the PBPK models underestimated sunitinib metabolite concentrations. In contrast, allometrically scaled popPK simulations accurately predicted all concentration-time profiles. Trough concentration (Ctrough) predictions from the popPK model fell within a 2-fold range for all compounds, while 3 out of 5 PBPK predictions exceeded this range for the imatinib and sunitinib metabolite concentrations. CONCLUSION Based on the identified case studies it appears that allometric scaling of popPK models is better suited to predict exposure of TKIs in pediatric patients ≥ 2 years. This advantage may be attributed to the stable enzyme expression patterns from 2 years old onwards, which can be easily related to adult levels through allometric scaling. In some instances, both methods performed comparably. Understanding where discrepancies between the model methods arise, can further inform model development and ultimately support pediatric dose selection.
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Affiliation(s)
- Maddalena Centanni
- Department of Pharmacy, Uppsala University, Box 580, Uppsala, 751 23, Sweden
| | - Omar Zaher
- Department of Pharmacy, Uppsala University, Box 580, Uppsala, 751 23, Sweden
| | - David Elhad
- Department of Pharmacy, Uppsala University, Box 580, Uppsala, 751 23, Sweden
| | - Mats O Karlsson
- Department of Pharmacy, Uppsala University, Box 580, Uppsala, 751 23, Sweden
| | - Lena E Friberg
- Department of Pharmacy, Uppsala University, Box 580, Uppsala, 751 23, Sweden.
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Brivio E, Pennesi E, Willemse ME, Huitema AD, Jiang Y, van Tinteren HD, van der Velden VH, Beverloo BH, den Boer ML, Rammeloo LA, Hudson C, Heerema N, Kowalski K, Zhao H, Kuttschreuter L, Bautista Sirvent FJ, Bukowinski A, Rizzari C, Pollard J, Murillo-Sanjuán L, Kutny M, Zarnegar-Lumley S, Redell M, Cooper S, Bertrand Y, Petit A, Krystal J, Metzler M, Lancaster D, Bourquin JP, Motwani J, van der Sluis IM, Locatelli F, Roth ME, Hijiya N, Zwaan CM. Bosutinib in Resistant and Intolerant Pediatric Patients With Chronic Phase Chronic Myeloid Leukemia: Results From the Phase I Part of Study ITCC054/COG AAML1921. J Clin Oncol 2024; 42:821-831. [PMID: 38033284 PMCID: PMC10906575 DOI: 10.1200/jco.23.00897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/29/2023] [Accepted: 10/02/2023] [Indexed: 12/02/2023] Open
Abstract
PURPOSE Bosutinib is approved for adults with chronic myeloid leukemia (CML): 400 mg once daily in newly diagnosed (ND); 500 mg once daily in resistant/intolerant (R/I) patients. Bosutinib has a different tolerability profile than other tyrosine kinase inhibitors (TKIs) and potentially less impact on growth (preclinical data). The primary objective of this first-in-child trial was to determine the recommended phase II dose (RP2D) for pediatric R/I and ND patients. PATIENTS AND METHODS In the phase I part of this international, open-label trial (ClinicalTrials.gov identifier: NCT04258943), children age 1-18 years with R/I (per European LeukemiaNet 2013) Ph+ CML were enrolled using a 6 + 4 design, testing 300, 350, and 400 mg/m2 once daily with food. The RP2D was the dose resulting in 0/6 or 1/10 dose-limiting toxicities (DLTs) during the first cycle and achieving adult target AUC levels for the respective indication. As ND participants were only enrolled in phase II, the ND RP2D was selected based on data from R/I patients. RESULTS Thirty patients were enrolled; 27 were evaluable for DLT: six at 300 mg/m2, 11 at 350 mg/m2 (one DLT), and 10 at 400 mg/m2 (one DLT). The mean AUCs at 300 mg/m2, 350 mg/m2, and 400 mg/m2 were 2.20 μg h/mL, 2.52 μg h/mL, and 2.66 μg h/mL, respectively. The most common adverse event was diarrhea (93%; ≥grade 3: 11%). Seven patients stopped because of intolerance and eight because of insufficient response. Complete cytogenetic and major molecular response to bosutinib appeared comparable with other published phase I/II trials with second-generation TKIs in children. CONCLUSION Bosutinib was safe and effective. The pediatric RP2D was 400 mg/m2 once daily (max 600 mg/d) with food in R/I patients and 300 mg/m2 once daily (max 500 mg/d) with food in ND patients, which achieved targeted exposures as per adult experience.
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Affiliation(s)
- Erica Brivio
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Edoardo Pennesi
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Marieke E. Willemse
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Alwin D.R. Huitema
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- The Netherlands Cancer Institute, Amsterdam, the Netherlands
- University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Yilin Jiang
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | | | - Berna H. Beverloo
- Department of Clinical Genetics, Erasmus MC, Rotterdam, the Netherlands
| | - Monique L. den Boer
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Lukas A.J. Rammeloo
- Department of Pediatric Cardiology, Amsterdam UMC, Emma Children's Hospital, Amsterdam, the Netherlands
| | | | | | | | | | | | - Francisco J. Bautista Sirvent
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Pediatric Oncology and Hematology Department, Hospital Niño Jesús, Madrid, Spain
| | - Andrew Bukowinski
- Pediatric Hematology and Oncology Alabama, University of Alabama at Birmingham, Birmingham, AL
| | - Carmelo Rizzari
- Department of Pediatrics, University of Milano-Bicocca, IRCCS San Gerardo dei Tintori, Monza, Italy
| | | | | | | | | | - Michele Redell
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX
| | - Stacy Cooper
- Sidney Kimmel Cancer Center, Johns Hopkins University, Baltimore, MD
| | | | | | - Julie Krystal
- The Steven and Alexandra Cohen Children's Medical Center of New York, New York, NY
| | | | - Donna Lancaster
- The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | | | | | - Inge M. van der Sluis
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Franco Locatelli
- IRCCS Ospedale Pediatrico Bambino Gesù, Catholic University of the Sacred Heart, Rome, Italy
| | | | - Nobuko Hijiya
- Columbia University Irving Medical Center, New York, NY
| | - Christian M. Zwaan
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
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Ata F, Benkhadra M, Ghasoub R, Fernyhough LJ, Omar NE, Nashwan AJ, Aldapt MB, Mushtaq K, Kassem NA, Yassin MA. Tyrosine Kinase Inhibitors in pediatric chronic myeloid leukemia: a focused review of clinical trials. Front Oncol 2023; 13:1285346. [PMID: 38188307 PMCID: PMC10769570 DOI: 10.3389/fonc.2023.1285346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/29/2023] [Indexed: 01/09/2024] Open
Abstract
Tyrosine Kinase Inhibitors (TKIs) is revolutionizing the management of pediatric Chronic Myeloid Leukemia (CML), offering alternatives to Allogeneic Hematopoietic Stem Cell Transplantation (AHSCT). We conducted a comprehensive review of 16 Randomized Controlled Trials (RCTs) encompassing 887 pediatric CML patients treated with TKIs including Imatinib, Dasatinib, and Nilotinib. The median patient age ranged from 6.5 to 14 years, with a median white blood cell count of 234 x 10^9/uL, median hemoglobin level of 9.05 g/dL, and median platelet count of 431.5 x 10^9/µL. Imatinib seems to be predominant first line TKI, with the most extensive safety and efficacy data. BCR::ABL response rates below 10% ranged from 60% to 78%, CCyR at 24 months ranged from 62% to 94%, and PFS showed variability from 56.8% to 100%, albeit with differing analysis timepoints. The Safety profile of TKIs was consistent with the known safety profile in adults. With the availability of three TKIs as first line options, multiple factors should be considered when selecting first line TKI, including drug formulation, administration, comorbidities, and financial issues. Careful monitoring of adverse events, especially in growing children, should be considered in long term follow-up clinical trials.
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Affiliation(s)
- Fateen Ata
- Department of Endocrinology and Metabolism, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar
| | - Maria Benkhadra
- Pharmacy Department, National Centre for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Rola Ghasoub
- Pharmacy Department, National Centre for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Liam J. Fernyhough
- Department of Medical Education, Weill Cornell Medicine Qatar, Doha, Qatar
| | - Nabil E. Omar
- Pharmacy Department, National Centre for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
- Health Sciences Program, Clinical and Population Health Research, College of Pharmacy, Qatar University, Doha, Qatar
| | | | - Mahmood B. Aldapt
- Department of Medicine, Unity Hospital/Rochester Regional Health, Rochester, NY, United States
| | - Kamran Mushtaq
- Department of Gastroenterology, University Hospital Southampton, Southampton, United Kingdom
| | - Nancy A. Kassem
- Pharmacy Department, National Centre for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Mohamed A. Yassin
- Department of Medical Oncology/Hematology, National Centre for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
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Volz C, Zerjatke T, Gottschalk A, Semper S, Suttorp M, Glauche I, Krumbholz M, Metzler M. Continuous therapy response references for BCR::ABL1 monitoring in pediatric chronic myeloid leukemia. Sci Rep 2023; 13:18199. [PMID: 37875583 PMCID: PMC10598002 DOI: 10.1038/s41598-023-45364-0] [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: 06/30/2023] [Accepted: 10/18/2023] [Indexed: 10/26/2023] Open
Abstract
Response to tyrosine kinase inhibitor (TKI) therapy in patients with chronic myeloid leukemia (CML) is monitored by quantification of BCR::ABL1 transcript levels. Milestones for assessing optimal treatment response have been defined in adult CML patients and are applied to children and adolescents although it is questionable whether transferability to pediatric patients is appropriate regarding genetic and clinical differences. Therefore, we analyzed the molecular response kinetics to TKI therapy in 129 pediatric CML patients and investigated whether response assessment based on continuous references can support an early individual therapy adjustment. We applied a moving quantiles approach to establish a high-resolution response target curve and contrasted the median responses in all patients with the median of the ideal target curve obtained from a subgroup of optimal responders. The high-resolution response target curve of the optimal responder group presents a valuable tool for continuous therapy monitoring of individual pediatric CML patients in addition to the fixed milestones. By further comparing BCR::ABL1 transcript levels with BCR::ABL1 fusion gene copy numbers, it is also possible to model the differential dynamics of BCR::ABL1 expression and cell number under therapy. The developed methodology can be transferred to other biomarkers for continuous therapy monitoring.
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Affiliation(s)
- Christian Volz
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Erlangen, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Zerjatke
- Faculty of Medicine Carl Gustav Carus, Institute for Medical Informatics and Biometry, Technische Universität Dresden, Dresden, Germany
| | - Andrea Gottschalk
- Faculty of Medicine Carl Gustav Carus, Institute for Medical Informatics and Biometry, Technische Universität Dresden, Dresden, Germany
| | - Sabine Semper
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Erlangen, Germany
| | - Meinolf Suttorp
- Pediatric Hemato-Oncology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Ingmar Glauche
- Faculty of Medicine Carl Gustav Carus, Institute for Medical Informatics and Biometry, Technische Universität Dresden, Dresden, Germany
| | - Manuela Krumbholz
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Erlangen, Germany.
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany.
- Bavarian Cancer Research Center (BZKF), Erlangen, Germany.
| | - Markus Metzler
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
- Bavarian Cancer Research Center (BZKF), Erlangen, Germany
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Allegra S, Dondi E, Chiara F, De Francia S. Pharmacokinetics of Four Tyrosine Kinase Inhibitors in Adult and Paediatric Chronic Myeloid Leukaemia Patients. Biomedicines 2023; 11:2478. [PMID: 37760918 PMCID: PMC10525795 DOI: 10.3390/biomedicines11092478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Tyrosine kinase inhibitors work by blocking the tyrosine kinases responsible for the dysregulation of intracellular signalling pathways in tumour cells. This study looked at the impact of age and sex on the levels of imatinib, dasatinib, nilotinib, and ponatinib in plasma and cerebrospinal fluid samples of patients with chronic myeloid leukaemia. Imatinib and dasatinib were used to treat the majority of the enrolled patients, and most of them were paediatrics. A total of 82.4% of the patients were men; however, sex-related differences in the drugs' pharmacokinetics were not found. Age and imatinib plasma concentration were found to be inversely correlated. The dasatinib concentrations in plasma were found to be substantially lower than those found in cerebrospinal fluid, particularly in paediatrics. Analysing the obtained data, we can state that therapeutic drug monitoring is a useful method for adjusting a patient's treatment schedule that depends on drug concentrations in biological fluids. The use of therapeutic drug monitoring in conjunction with tyrosine kinase inhibitors for the treatment of chronic myeloid leukaemia is supported by a number of sources of evidence. As a result, as the research develops, the tyrosine kinase inhibitor therapeutic drug monitoring classification needs to be refined in terms of factors like sex and age.
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Gotesman M, Raheel S, Panosyan EH. Chronic Myeloid Leukemia in Children and Adolescents. Adv Pediatr 2023; 70:145-155. [PMID: 37422292 DOI: 10.1016/j.yapd.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2023]
Abstract
Acute leukemia is the most common malignancy in childhood, while chronic myeloid leukemia is rare, accounting for only 2% to 3% of all leukemia in childhood and 9% in adolescents, with an annual incidence of 1 and 2.2 cases per million in the two groups. The goal in Pediatrics is remission and cure with tyrosine kinase inhibitors (TKIs) and monitoring closely for long-term effects of TKI use.
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Affiliation(s)
- Moran Gotesman
- Department of Pediatrics, Harbor UCLA Medical Center, 1000 West Carson Street Box 468, Torrance, CA 90509, USA; The Lundquist Institute of Biomedical Innovation, 1124 West Carson Street, Torrance, CA 90502, USA.
| | - Sahar Raheel
- Department of Pediatrics, Harbor UCLA Medical Center, 1000 West Carson Street Box 468, Torrance, CA 90509, USA
| | - Eduard H Panosyan
- Department of Pediatrics, Harbor UCLA Medical Center, 1000 West Carson Street Box 468, Torrance, CA 90509, USA; The Lundquist Institute of Biomedical Innovation, 1124 West Carson Street, Torrance, CA 90502, USA
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8
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Shima H, Shimada H. Recent progress in the management of pediatric chronic myeloid leukemia. Int J Hematol 2023; 117:182-187. [PMID: 36574169 DOI: 10.1007/s12185-022-03526-2] [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: 12/09/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
Chronic myeloid leukemia (CML) is a rare myeloproliferative disease in children. The primary cause of CML is the chimeric BCR::ABL1 gene in hematopoietic stem cells, which leads to leukocytosis, platelet proliferation, and splenomegaly. Lately, tyrosine kinase inhibitors (TKIs) have replaced hematopoietic cell transplantation, which was previously considered the only curative therapy, as the first-line treatment for chronic-phase CML. However, the clinical efficacy of TKIs, including those effective in adult CML, has not been well-investigated in pediatric CML. This review describes the recommended TKI-based management strategies for pediatric CML according to the literature and guidelines. Furthermore, we discuss the prospects for TKI discontinuation to avoid important adverse events, such as growth impairment, in children.
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Affiliation(s)
- Haruko Shima
- Department of Pediatrics, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 1608582, Japan.
| | - Hiroyuki Shimada
- Department of Pediatrics, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 1608582, Japan
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Practical Recommendations for the Manipulation of Kinase Inhibitor Formulations to Age-Appropriate Dosage Forms. Pharmaceutics 2022; 14:pharmaceutics14122834. [PMID: 36559327 PMCID: PMC9782008 DOI: 10.3390/pharmaceutics14122834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/07/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Over 75 kinase inhibitors (KIs) have been approved for the treatment of various cancers. KIs are orally administrated but mostly lack pediatric age-appropriate dosage forms or instructions for dose manipulation. This is highly problematic for clinical practice in pediatric oncology, as flexible oral formulations are essential to individually set dosages and to adjust it to a child's swallowability. Most KIs are poorly soluble, categorized in Biopharmaceutics Classification System (BCS) class II or IV, and improperly manipulating the KI formulation can alter pharmacokinetics and jeopardize KI drug safety and efficacy. Therefore, the goals of this review were to provide practical recommendations for manipulating the formulation of the 15 most frequently used KIs in pediatric oncology (i.e., bosutinib, cabozantinib, cobimetinib, crizotinib, dabrafenib, dasatinib, entrectinib, imatinib, larotrectinib, nilotinib, ponatinib, ruxolitinib, selumetinib, sunitinib and trametinib) based on available literature studies and fundamental drug characteristics and to establish a decision tool that supports decisions regarding formulation manipulation of solid oral dosages of KIs that have been or will be licensed (for adult and/or pediatric cancers) but are not included in this review.
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Li C, Wen L, Dong J, Li L, Huang J, Yang J, Liang T, Li T, Xia Z, Chen C. Alterations in cellular metabolisms after TKI therapy for Philadelphia chromosome-positive leukemia in children: A review. Front Oncol 2022; 12:1072806. [PMID: 36561525 PMCID: PMC9766352 DOI: 10.3389/fonc.2022.1072806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
Abstract
Incidence rates of chronic myeloid leukemia (CML) and Philadelphia chromosome-positive (Ph+) acute lymphoblastic leukemia (ALL) are lower but more aggressive in children than in adults due to different biological and host factors. After the clinical application of tyrosine kinase inhibitor (TKI) blocking BCR/ABL kinase activity, the prognosis of children with CML and Ph+ ALL has improved dramatically. Yet, off-target effects and drug tolerance will occur during the TKI treatments, contributing to treatment failure. In addition, compared to adults, children may need a longer course of TKIs therapy, causing detrimental effects on growth and development. In recent years, accumulating evidence indicates that drug resistance and side effects during TKI treatment may result from the cellular metabolism alterations. In this review, we provide a detailed summary of the current knowledge on alterations in metabolic pathways including glucose metabolism, lipid metabolism, amino acid metabolism, and other metabolic processes. In order to obtain better TKI treatment outcomes and avoid side effects, it is essential to understand how the TKIs affect cellular metabolism. Hence, we also discuss the relevance of cellular metabolism in TKIs therapy to provide ideas for better use of TKIs in clinical practice.
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Affiliation(s)
- Chunmou Li
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Luping Wen
- Department of Pharmacy, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Junchao Dong
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Lindi Li
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Junbin Huang
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Jing Yang
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Tianqi Liang
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Tianwen Li
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Zhigang Xia
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Chun Chen
- Department of Pediatrics, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China,*Correspondence: Chun Chen,
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11
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Kyriakidis I, Mantadakis E, Stiakaki E, Groll AH, Tragiannidis A. Infectious Complications of Targeted Therapies in Children with Leukemias and Lymphomas. Cancers (Basel) 2022; 14:cancers14205022. [PMID: 36291806 PMCID: PMC9599435 DOI: 10.3390/cancers14205022] [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: 09/19/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/30/2022] Open
Abstract
Simple Summary Targeted therapies in children with hematological malignancies moderate the effects of cytotoxic therapy, thus improving survival rates. They have emerged over the last decade and are used in combination with or after the failure of conventional chemotherapy and as bridging therapy prior to hematopoietic stem cell transplantation (HSCT). Nowadays, there is a growing interest in their efficacy and safety in pediatric patients with refractory or relapsed disease. The compromised immune system, even prior to therapy, requires prompt monitoring and treatment. In children with hematological malignancies, targeted therapies are associated with a comparable incidence of infectious complications to adults. The exact impact of these agents that have different mechanisms of action and are used after conventional chemotherapy or HSCT is difficult to ascertain. Clinicians should be cautious of severe infections after the use of targeted therapies, especially when used in combination with chemotherapy. Abstract The aim of this review is to highlight mechanisms of immunosuppression for each agent, along with pooled analyses of infectious complications from the available medical literature. Rituximab confers no increase in grade ≥3 infectious risks, except in the case of patients with advanced-stage non-Hodgkin lymphoma. Gemtuzumab ozogamicin links with high rates of grade ≥3 infections which, however, are comparable with historical cohorts. Pembrolizumab exhibits a favorable safety profile in terms of severe infections. Despite high rates of hypogammaglobulinemia (HGG) with blinatumomab, low-grade ≥3 infection rates were observed, especially in the post-reinduction therapy of relapsed B-acute lymphoblastic leukemia. Imatinib and nilotinib are generally devoid of severe infectious complications, but dasatinib may slightly increase the risk of opportunistic infections. Data on crizotinib and pan-Trk inhibitors entrectinib and larotrectinib are limited. CAR T-cell therapy with tisagenlecleucel is associated with grade ≥3 infections in children and is linked with HGG and the emergence of immune-related adverse events. Off-label therapies inotuzumab ozogamicin, brentuximab vedotin, and venetoclax demonstrate low rates of treatment-related grade ≥3 infections, while the addition of bortezomib to standard chemotherapy in T-cell malignancies seems to decrease the infection risk during induction. Prophylaxis, immune reconstitution, and vaccinations for each targeted agent are discussed, along with comparisons to adult studies.
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Affiliation(s)
- Ioannis Kyriakidis
- Department of Pediatric Hematology-Oncology & Autologous Hematopoietic Stem Cell Transplantation Unit, University Hospital of Heraklion & Laboratory of Blood Diseases and Childhood Cancer Biology, School of Medicine, University of Crete, 70013 Heraklion, Greece
| | - Elpis Mantadakis
- Department of Paediatrics, Paediatric Hematology/Oncology Unit, Faculty of Medicine, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Eftichia Stiakaki
- Department of Pediatric Hematology-Oncology & Autologous Hematopoietic Stem Cell Transplantation Unit, University Hospital of Heraklion & Laboratory of Blood Diseases and Childhood Cancer Biology, School of Medicine, University of Crete, 70013 Heraklion, Greece
| | - Andreas H. Groll
- Infectious Disease Research Program, Center for Bone Marrow Transplantation and Department of Pediatric Hematology and Oncology, University Children’s Hospital Münster, D-48149 Münster, Germany
| | - Athanasios Tragiannidis
- Pediatric and Adolescent Hematology-Oncology Unit, 2nd Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, AHEPA Hospital, 54636 Thessaloniki, Greece
- Correspondence: ; Fax: +30-2310-994803
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12
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Schleicher O, Horndasch A, Krumbholz M, Sembill S, Bremensdorfer C, Grabow D, Erdmann F, Karow A, Metzler M, Suttorp M. Patient-reported long-term outcome following allogeneic hematopoietic stem cell transplantation in pediatric chronic myeloid leukemia. Front Oncol 2022; 12:963223. [PMID: 36276159 PMCID: PMC9580018 DOI: 10.3389/fonc.2022.963223] [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: 06/07/2022] [Accepted: 08/26/2022] [Indexed: 01/03/2023] Open
Abstract
Background Pediatric CML is very rare. Before the introduction of tyrosine kinase inhibitors (TKIs), allogeneic hematopoietic stem cell transplantation (HSCT) from a donor -if available- was the standard cure attempt. Data on the long-term outcome and health-related quality of life (HRQOL) in former pediatric CML patients undergoing HSCT are lacking. Study question We investigated long-term survivors' self-reporting to a questionnaire sent out to patients formerly enrolled in pediatric CML-HSCT trials. Methods Individuals with CML transplanted at age <18 years were identified from the German Childhood Cancer Registry database. Long-term survivors received a questionnaire based on the SF-36 and FACT-BMT asking them to self-report HRQOL issues. (Ethical vote #541_20 B, Medical Faculty, University of Erlangen-Nürnberg). Results 111/171 (64.9%) individuals survived HSCT long-term and 86/111 (77.5%) fulfilled all inclusion criteria and received the questionnaire. 37/86 (43%) participants (24 female, 13 male, median age at HSCT 12 years [range 2-18], median age at the time of the survey 29 years [range 18-43]) responded after a median follow-up period of 19 years (range 4-27) after HSCT. 10/37 (27%) participants underwent no regular medical follow-up examinations. Self-reported symptoms like chronic graft-versus-host disease (cGvHD)-associated organ impairments and conditioning regimen consequences could causatively not sharply be separated in each case. Complains comprised hypothyroidism (N=11, 30%), infertility (N=9, 24%), lung problems, dry eyes (each N=7, 19%), skin alterations (N=6, 17%), hair problems (N=4, 11%), and sexual dysfunction (N=3, 9%). 10 (27%) participants experienced 13 CML relapses after a median interval from HSCT of 31 months (range 2-93). Only one patient underwent 2nd SCT after failure of relapse treatment with TKIs. Six secondary malignancies (dysplastic melanocytic nevus and ALL, basal cell carcinoma (N=2), rhabdomyosarcoma, and thyroid carcinoma developed in 5 (13%) participants. As assessed by the SF-36 questionnaire, impaired physical health was mainly associated with cGvHD. The mental component summary score showed that also participants without cGvHD scored significantly lower than the general population. When assessed by the FACT-BMT, participants with cGvHD scored significantly lower while participants without cGvHD scored even 5 points higher than the data from controls. 18 (49%) participants considered the sequelae of HSCT an obstacle to education. Out of the total cohort, N=20 (54%), N=7 (19%), N=5 (14%), and N=4 (11%) participants worked full time, part-time, were unemployed, or had not yet finalized their education, respectively. 20 (54%) participants lived as singles, 8 (22%) lived in a partnership, 6 (16%) were married, and 3 (8%) had been divorced. Four (11%) participants reported a total number of 7 children. Conclusion This first assessment of HRQOL in former pediatric patients with CML surviving HSCT for more than two decades demonstrates self-reported satisfactory well-being only in the absence of cGvHD. Research-based on self-reported outcomes sheds light on former patients' perspectives and provides an additional layer of valuable knowledge for pediatric and adult hematologists. Regular follow-up examinations are mandatory helping to avoid that late secondary neoplasias, CML-relapse, and disorders forming the broad range of possible long-term consequences of HSCT are not detected too late.
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Affiliation(s)
- Oliver Schleicher
- Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Annkathrin Horndasch
- Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Manuela Krumbholz
- Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Stephanie Sembill
- Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Claudia Bremensdorfer
- German Childhood Cancer Registry, Division of Childhood Cancer Epidemiology, Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Desiree Grabow
- German Childhood Cancer Registry, Division of Childhood Cancer Epidemiology, Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Friederike Erdmann
- German Childhood Cancer Registry, Division of Childhood Cancer Epidemiology, Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Axel Karow
- Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Markus Metzler
- Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Meinolf Suttorp
- Pediatric Hemato-Oncology, Medical Faculty Carl Gustav Carus, Technical University, Dresden, Germany,*Correspondence: Meinolf Suttorp,
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13
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Leung WY, Cheuk DKL, Cheng FWT, Leung AWK, Chiu KH, Ho KKH, Li CH, Chan GCF. Outcome prediction of chronic myeloid leukemia (CML) in children. Ann Hematol 2022; 101:1677-1688. [PMID: 35641639 DOI: 10.1007/s00277-022-04852-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 04/20/2022] [Indexed: 11/26/2022]
Abstract
We evaluated the feasibility of existing risk assessment tools for chronic myeloid leukemia (CML) in children. Fifty-five patients with newly diagnosed CML between 1996 and 2019 were included. Forty-nine patients presented in chronic phase, thirty-six of whom were treated with upfront tyrosine kinase inhibitor (CP-TKI group); one presented in accelerated phase and four in blastic phase. Treatment, survival, responses, and tolerance were evaluated. All patients in the CP-TKI group received imatinib as their first TKI treatment. The 10-year overall survival (OS), progression-free survival (PFS), and event-free survival (EFS) of TKI-treated group was 97%, 91.4%, and 72.3%, respectively. At 60 months, the rates of major molecular response were 81.2% and deep molecular response was 67.5%. The EUTOS long-term survival (ELTS) risk grouping did not predict OS, PFS, or EFS. The IMAFAIL risk groups were correlated with the risk of imatinib failure. Further studies are required to modify the existing risk assessment tools for children.
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Affiliation(s)
- Wing-Yan Leung
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Ngau Tau Kok, Hong Kong
| | - Daniel Ka-Leung Cheuk
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Ngau Tau Kok, Hong Kong
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, Pok Fu Lam, Hong Kong
| | - Frankie Wai-Tsoi Cheng
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Ngau Tau Kok, Hong Kong
- Department of Paediatrics, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - Alex Wing-Kwan Leung
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Ngau Tau Kok, Hong Kong
- Department of Paediatrics, Prince of Wales Hospital, Sha Tin, Hong Kong
- Department of Paediatrics and Adolescent Medicine, Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Ka-Ho Chiu
- Department of Paediatrics, Queen Elizabeth Hospital, Yau Ma Tei, Hong Kong
| | - Karin Kar-Huen Ho
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Chak-Ho Li
- Department of Paediatrics & Adolescent Medicine, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - Godfrey Chi-Fung Chan
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Ngau Tau Kok, Hong Kong.
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, Pok Fu Lam, Hong Kong.
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong.
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14
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Sharma AL, Meitei PM, Machathoibi TC, Singh NT, Singh TR, Singh LS. Ovarian cancer G protein-coupled receptor 1 inhibits A549 cells migration through casein kinase 2α intronless gene and neutral endopeptidase. BMC Cancer 2022; 22:143. [PMID: 35123428 PMCID: PMC8817493 DOI: 10.1186/s12885-022-09257-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 02/01/2022] [Indexed: 11/24/2022] Open
Abstract
Background We have previously reported that a new intronless gene for casein kinase 2α (CK2α), CSNK2A3, is expressed in human cells. The promoter of the well-known CK2α, CSNK2A1, displays characteristics of a housekeeping gene, whereas CSNK2A3 has a characteristic of a regulated promoter with two TATA boxes and a CAAT box. GPR68, a family of the G protein-coupled receptors, is also known as ovarian cancer G protein-coupled receptor 1 (OGR1). In the current study, we analyzed the roles of CK2α genes and neutral endopeptidase (NEP), a key enzyme that influences a variety of malignancies, in the OGR1-induced inhibition of A549 cell migration. Methods We analyzed the transcript expressions of both the CK2α genes (CSNK2A1 and CSNK2A3) and NEP upon OGR1 overexpression. Protein expression of CK2α and NEP were also analyzed. We further elucidated the functional roles of both CK2α and NEP in the OGR1-induced inhibition of A549 cell migration in vitro using a wound-healing assay. We also analyzed the molecular mechanisms involved in the OGR1-induced inhibition of lung cancer cell migration. Results The findings of this study showed that OGR1 upregulated the expression of CSNK2A3 but not CSNK2A1 in the A549 cells. The findings further suggested OGR1 also upregulates the expression of NEP. The OGR1-induced inhibition of A549 cell migration was abrogated completely by inhibition of CK2α activity, whereas partial abrogation (~ 30%) was observed in the presence of NEP inhibition. The results also revealed that OGR1 regulates CSNK2A3 via activation of Rac1/cdc42 and MAPKs pathways. CK2 is ubiquitously expressed, and in contrast, is believed to be a constitutively active enzyme, and its regulation appears to be independent of known second messengers. Conclusion In the current study, we report for the first time the OGR1-induced regulation of CSNK2A3, CK2αP, and NEP in A549 cancer cells. Our study also decoded the downstream cellular proteins of OGR1 as well as the molecular mechanism involved in OGR1-induced inhibition of A549 cell migration. The findings of this research suggest the potential therapeutic targets to inhibit lung cancer progression. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09257-1.
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15
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Aubert L, Petit A, Bertrand Y, Ray-Lunven AF, Angoso M, Pluchart C, Millot F, Saultier P, Cheikh N, Pellier I, Plantaz D, Sirvent A, Thouvenin-Doublet S, Valduga J, Plat G, Rialland F, Henry C, Esvan M, Gandemer V. Therapeutic approach and outcome of children with Philadelphia chromosome-positive acute lymphoblastic leukemia at first relapse in the era of tyrosine kinase inhibitors: An SFCE retrospective study. Pediatr Blood Cancer 2022; 69:e29441. [PMID: 34854546 DOI: 10.1002/pbc.29441] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/23/2021] [Accepted: 10/16/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND Since the introduction of tyrosine kinase inhibitors (TKIs), the profile of pediatric relapse of Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) has changed. However, the management of pediatric Ph+ ALL relapses is not currently standardized. PROCEDURE We retrospectively analyzed the therapeutic strategies and outcomes of pediatric Ph+ ALL patients in first relapse who were initially treated with a TKI-containing regimen in one of the French pediatric hematology centers from 2004 to 2019. RESULTS Twenty-seven children experienced a Ph+ ALL relapse: 24 (89%) had an overt relapse and three a molecular relapse. Eight involved the central nervous system. A second complete remission (CR2) was obtained for 26 patients (96%). Induction consisted of nonintensive chemotherapy for 13 patients (48%) and intensive chemotherapy for 14 (52%). Thirteen patients (48%) received consolidation. Allogenic hematopoietic stem cell transplantation (alloHSCT) was performed for 21 patients (78%). The TKI was changed for 23 patients (88%), mainly with dasatinib (n = 15). T315I was the most common mutation at relapse (4/7). The 4-year event-free survival and survival rates were 60.9% and 76.1%, respectively. Survival was positively associated with alloHSCT in CR2. CONCLUSION We show that pediatric first-relapse Ph+ ALL reinduces well with a second course of TKI exposure, despite the use of different therapeutic approaches. The main prognostic factor for survival was alloHSCT in CR2. Because of the small size of the cohort, we could not draw any conclusions about the respective impact of TKIs, but the predominance of the T315I mutation should encourage careful consideration of the TKI choice.
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Affiliation(s)
- Lucie Aubert
- Department of Pediatric Hemato-Oncology, University Hospital of Rennes, Rennes, France
| | - Arnaud Petit
- Pediatric Hematology and Oncology Department, Armand Trousseau Hospital, APHP, Paris, France
| | - Yves Bertrand
- Department of the Institute of Pediatric Hematology and Oncology, University Hospital of Lyon, Lyon, France
| | | | - Marie Angoso
- Pediatric Hematology Oncology Department, University Hospital of Bordeaux, Bordeaux, France
| | - Claire Pluchart
- Department of Pediatric Onco-Hematology, University Hospital of Reims, Reims, France
| | - Frédéric Millot
- Department of Hematological Oncology and Cell Therapy, University Hospital of Poitiers, Poitiers, France
| | - Paul Saultier
- Pediatric Hematology and Oncology Department, La Timone Children's Hospital, AP-HM, Marseille, France
| | - Nathalie Cheikh
- Pediatric Hematology Oncology Unity, University Hospital of Besançon, Besançon, France
| | - Isabelle Pellier
- Pediatric Hematology and Oncology Immunology Department, University Hospital of Angers, Angers, France
| | - Dominique Plantaz
- Pediatric Immuno-Hemato-Oncology Department, University Hospital of Grenoble, Grenoble, France
| | - Anne Sirvent
- Department of Pediatric Onco-Hematology, University Hospital of Montpellier, Montpellier, France
| | | | - Julie Valduga
- Pediatric Oncology and Hematology Department, University Hospital of Nancy (CHRU Nancy), Nancy, France
| | - Geneviève Plat
- Department of Pediatric Hemato-Oncology, University Hospital of Toulouse, Toulouse, France
| | - Fanny Rialland
- Department of Pediatric Onco-Hematology, University Hospital of Nantes, Nantes, France
| | - Catherine Henry
- Cytogenetic and Cell Biology Department, University Hospital of Rennes, Rennes, France
| | - Maxime Esvan
- Rennes University, University Hospital of Rennes, Inserm, CIC 1414 (Centre d'Investigation Clinique de Rennes), Rennes, France
| | - Virginie Gandemer
- Department of Pediatric Hemato-Oncology, University Hospital of Rennes, Rennes, France
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16
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Butler E, Ludwig K, Pacenta HL, Klesse LJ, Watt TC, Laetsch TW. Recent progress in the treatment of cancer in children. CA Cancer J Clin 2021; 71:315-332. [PMID: 33793968 DOI: 10.3322/caac.21665] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 02/01/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Although significant improvements have been made in the outcomes of children with cancer, the pace of improvement has slowed in recent years as the limits of therapy intensification may have been reached for many pediatric cancers. Furthermore, with increasing numbers of pediatric cancer survivors, the long-term side effects of treatment have become increasingly apparent. Therefore, attention has shifted to the use of molecularly targeted agents and immunotherapies to improve the outcomes of children who are not cured by traditional cytotoxic chemotherapies and to decrease exposure to cytotoxic chemotherapy and reduce late effects. This review describes the recent progress in the treatment of children with cancer, focusing in particular on diseases in which targeted and immunotherapeutic agents have made an impact.
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Affiliation(s)
- Erin Butler
- Department of Pediatrics and Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center and Children's Health, Dallas, Texas
| | - Kathleen Ludwig
- Department of Pediatrics and Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center and Children's Health, Dallas, Texas
| | - Holly L Pacenta
- Division of Hematology and Oncology, Cook Children's Medical Center, Fort Worth, Texas
| | - Laura J Klesse
- Department of Pediatrics and Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center and Children's Health, Dallas, Texas
| | - Tanya C Watt
- Department of Pediatrics and Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center and Children's Health, Dallas, Texas
| | - Theodore W Laetsch
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics and Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
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17
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Phillips LN, Hijiya N. Tyrosine Kinase Inhibitors and Beyond for Chronic Myeloid Leukemia in Children. Paediatr Drugs 2021; 23:241-251. [PMID: 33899163 DOI: 10.1007/s40272-021-00446-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/07/2021] [Indexed: 12/20/2022]
Abstract
Chronic myeloid leukemia (CML) is rare in children but presents a unique challenge as recent drug innovations have turned CML into a chronic disease with implications for treatment into adulthood. With the approval of newer-generation tyrosine kinase inhibitors (TKIs) in addition to imatinib, providers have more options for the treatment of chronic-phase CML (CML-CP) in children. The second-generation TKIs approved for use in children, nilotinib and dasatinib, have higher response rates than first-generation imatinib; however, overall survival rates appear to be the same. Even more options may soon become available with ongoing investigations into the use of bosutinib and ponatinib and other new agents in children. Possible long-term side effects of TKIs, including growth failure, should be carefully acknowledged by the treating provider. Although these known associations may not preclude treatment, providers should be aware of them to guide their management of pediatric patients with CML being treated long term with TKI therapy. Treatment-free remission is a desired goal for pediatric patients and providers alike, but current recommendations are for attempts at achieving this to be restricted to clinical study settings.
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Affiliation(s)
- Lia N Phillips
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Columbia University Medical Center, 161 Fort Washington Ave, New York, NY, 10032, USA
| | - Nobuko Hijiya
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Columbia University Medical Center, 161 Fort Washington Ave, New York, NY, 10032, USA.
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18
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Laetsch TW, DuBois SG, Bender JG, Macy ME, Moreno L. Opportunities and Challenges in Drug Development for Pediatric Cancers. Cancer Discov 2021; 11:545-559. [PMID: 33277309 PMCID: PMC7933059 DOI: 10.1158/2159-8290.cd-20-0779] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/08/2020] [Accepted: 09/08/2020] [Indexed: 11/16/2022]
Abstract
The use of targeted small-molecule therapeutics and immunotherapeutics has been limited to date in pediatric oncology. Recently, the number of pediatric approvals has risen, and regulatory initiatives in the United States and Europe have aimed to increase the study of novel anticancer therapies in children. Challenges of drug development in children include the rarity of individual cancer diagnoses and the high prevalence of difficult-to-drug targets, including transcription factors and epigenetic regulators. Ongoing pediatric adaptation of biomarker-driven trial designs and further exploration of agents targeting non-kinase drivers constitute high-priority objectives for future pediatric oncology drug development. SIGNIFICANCE: Increasing attention to drug development for children with cancer by regulators and pharmaceutical companies holds the promise of accelerating the availability of new therapies for children with cancer, potentially improving survival and decreasing the acute and chronic toxicities of therapy. However, unique approaches are necessary to study novel therapies in children that take into account low patient numbers, the pediatric cancer genomic landscape and tumor microenvironment, and the need for pediatric formulations. It is also critical to evaluate the potential for unique toxicities in growing hosts without affecting the pace of discovery for children with these life-threatening diseases.
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Affiliation(s)
- Theodore W Laetsch
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, and Abramson Cancer Center and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Steven G DuBois
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center and Harvard Medical School, Boston, Massachusetts
| | | | - Margaret E Macy
- Children's Hospital Colorado and University of Colorado, Denver, Colorado
| | - Lucas Moreno
- Division of Pediatric Hematology and Oncology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
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19
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Suttorp M, Millot F, Sembill S, Deutsch H, Metzler M. Definition, Epidemiology, Pathophysiology, and Essential Criteria for Diagnosis of Pediatric Chronic Myeloid Leukemia. Cancers (Basel) 2021; 13:cancers13040798. [PMID: 33672937 PMCID: PMC7917817 DOI: 10.3390/cancers13040798] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary The low incidence (1:1,000,000) of chronic myeloid leukemia (CML) in the first two decades of life presents an obstacle to accumulation of pediatric experience and knowledge on this leukemia. Biological features of CML are shared but also differing between adult and pediatric patients. This review aims; (i) to define the disease based on an unified terminology, (ii) to list the diseases to be considered as a differential diagnosis in children, (iii) to outlines the morphological, histopathological and immuno-phenotypical findings of pediatric CML, (iv) to illustrate rare but classical complications resulting from high white cell and platelet counts at diagnosis, and (v) to recommend a uniform approach for the diagnostic procedures to be applied. Evidently, only a clear detailed picture of all relevant features can lay the basis for standardized treatment approaches. Abstract Depending on the analytical tool applied, the hallmarks of chronic myeloid leukemia (CML) are the Philadelphia Chromosome and the resulting mRNA fusion transcript BCR-ABL1. With an incidence of 1 per 1 million of children this malignancy is very rare in the first 20 years of life. This article aims to; (i) define the disease based on the WHO nomenclature, the appropriate ICD 11 code and to unify the terminology, (ii) delineate features of epidemiology, etiology, and pathophysiology that are shared, but also differing between adult and pediatric patients with CML, (iii) give a short summary on the diseases to be considered as a differential diagnosis of pediatric CML, (iv) to describe the morphological, histopathological and immunophenotypical findings of CML in pediatric patients, (v) illustrate rare but classical complications resulting from rheological problems observed at diagnosis, (vi) list essential and desirable diagnostic criteria, which hopefully in the future will help to unify the attempts when approaching this rare pediatric malignancy.
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Affiliation(s)
- Meinolf Suttorp
- Pediatric Hemato-Oncology, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany
- Correspondence: ; Tel.: +49-351-458-3522; Fax: +49-351-458-5864
| | - Frédéric Millot
- Inserm CIC 1402, University Hospital Poitiers, F-86000 Poitiers, France; (F.M.); (H.D.)
| | - Stephanie Sembill
- Pediatric Oncology and Hematology, Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, D-91504 Erlangen, Germany; (S.S.); (M.M.)
| | - Hélène Deutsch
- Inserm CIC 1402, University Hospital Poitiers, F-86000 Poitiers, France; (F.M.); (H.D.)
| | - Markus Metzler
- Pediatric Oncology and Hematology, Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, D-91504 Erlangen, Germany; (S.S.); (M.M.)
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20
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Brown P, Inaba H, Annesley C, Beck J, Colace S, Dallas M, DeSantes K, Kelly K, Kitko C, Lacayo N, Larrier N, Maese L, Mahadeo K, Nanda R, Nardi V, Rodriguez V, Rossoff J, Schuettpelz L, Silverman L, Sun J, Sun W, Teachey D, Wong V, Yanik G, Johnson-Chilla A, Ogba N. Pediatric Acute Lymphoblastic Leukemia, Version 2.2020, NCCN Clinical Practice Guidelines in Oncology. J Natl Compr Canc Netw 2021; 18:81-112. [PMID: 31910389 DOI: 10.6004/jnccn.2020.0001] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Acute lymphoblastic leukemia (ALL) is the most common pediatric malignancy. Advancements in technology that enhance our understanding of the biology of the disease, risk-adapted therapy, and enhanced supportive care have contributed to improved survival rates. However, additional clinical management is needed to improve outcomes for patients classified as high risk at presentation (eg, T-ALL, infant ALL) and who experience relapse. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for pediatric ALL provide recommendations on the workup, diagnostic evaluation, and treatment of the disease, including guidance on supportive care, hematopoietic stem cell transplantation, and pharmacogenomics. This portion of the NCCN Guidelines focuses on the frontline and relapsed/refractory management of pediatric ALL.
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Affiliation(s)
- Patrick Brown
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
| | - Hiroto Inaba
- St. Jude Children's Research Hospital/The University of Tennessee Health Science Center
| | - Colleen Annesley
- Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance
| | | | - Susan Colace
- The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute
| | - Mari Dallas
- Case Comprehensive Cancer Center/University Hospitals Seidman Cancer Center and Cleveland Clinic Taussig Cancer Institute
| | | | - Kara Kelly
- Roswell Park Comprehensive Cancer Center
| | | | | | | | - Luke Maese
- Huntsman Cancer Institute at the University of Utah
| | - Kris Mahadeo
- The University of Texas MD Anderson Cancer Center
| | | | | | | | - Jenna Rossoff
- Ann & Robert H. Lurie Children's Hospital of Chicago
| | - Laura Schuettpelz
- Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine
| | | | | | - Weili Sun
- City of Hope National Medical Center
| | - David Teachey
- Abramson Cancer Center at the University of Pennsylvania
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Chen M, Zhu Y, Lin Y, Tengwang T, Zhang L. Use of tyrosine kinase inhibitors for paediatric Philadelphia chromosome-positive acute lymphoblastic leukaemia: a systematic review and meta-analysis. BMJ Open 2021; 11:e042814. [PMID: 33468532 PMCID: PMC7817804 DOI: 10.1136/bmjopen-2020-042814] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES To investigate the effectiveness and safety of tyrosine kinase inhibitors (TKIs) in the management of paediatric Philadelphia chromosome-positive acute lymphoblastic leukaemia (Ph+ALL). DESIGN A systematic review and meta-analysis. DATA SOURCES Electronic searches were conducted on CENTRAL, MEDLINE, EMBASE, SIOP, ASPHO, ASCO, ASH and four Chinese databases from inception to 8 March 2020. Language of publications was restricted in English and Chinese. ELIGIBILITY CRITERIA Prospective and retrospective comparative studies were included. DATA EXTRACTION AND SYNTHESIS Two authors independently assessed and extracted data. Quality of studies was assessed by the Cochrane Collaboration's tool and Newcastle-Ottawa Scale. Subgroup analysis was performed by comparing different types of TKIs. Quality of evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation approach. RESULTS Two randomised controlled trials (RCTs) and four cohort studies enrolling 536 patients were included. For RCTs, the pooled HR was 0.68 (95% CI 0.26 to 1.78) in overall survival (OS), 0.63 (95% CI 0.28 to 1.42) in event-free survival (EFS), respectively, comparing TKI arm with non-TKI arm for treatment of paediatric Ph+ALL. There was significant difference in OS and EFS between imatinib arm and dasatinib arm (HR 2.26, 95% CI 1.02 to 5.01; HR 2.36; 95% CI 1.27 to 4.39, respectively). For cohort studies, the pooled HR was 0.25 (95% CI 0.14 to 0.47) in OS, 0.25 (95% CI 0.12 to 0.56) in EFS, respectively, comparing TKI arm with non-TKI arm. There was no significance difference in adverse drug reaction between TKI group and without TKI group (risk ratio (RR) 0.82, 95% CI 0.63 to 1.08 in RCT; RR 1.01, 95% CI 0.64 to 1.59 in cohort studies; respectively), and imatinib versus dasatinib (RR 0.97, 95% CI 0.77 to 1.23). The quality of evidence was rated as low for OS, EFS and adverse drug reaction (ADR). CONCLUSIONS The combination of TKIs with chemotherapy is likely to improve the OS and EFS rates in paediatric Ph+ALL, and dasatinib is superior than imatinib. Large sample size and prospective controlled studies are warranted. PROSPERO REGISTRATION NUMBER CRD42018104107.
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Affiliation(s)
- Min Chen
- Department of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan, China
| | - Yiping Zhu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan, China
- Department of Pediatric Hematology and Oncology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yunzhu Lin
- Department of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan, China
| | - Tianzi Tengwang
- West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Lingli Zhang
- Department of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan, China
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22
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Syk Inhibitors: New Computational Insights into Their Intraerythrocytic Action in Plasmodium falciparum Malaria. Int J Mol Sci 2020; 21:ijms21197009. [PMID: 32977621 PMCID: PMC7582821 DOI: 10.3390/ijms21197009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/12/2020] [Accepted: 09/18/2020] [Indexed: 12/23/2022] Open
Abstract
Resistance to antimalarial drugs has spread rapidly over the past few decades. The WHO recommends artemisinin-based combination therapies for the treatment of uncomplicated malaria, but unfortunately these approaches are losing their efficacy in large areas of Southeast Asia. In 2016, artemisinin resistance was confirmed in 5 countries of the Greater Mekong subregion. We focused our study on Syk inhibitors as antimalarial drugs. The Syk protein is present in human erythrocytes, and the membrane of protein band 3 is its major target following activation by oxidant stress. Tyr phosphorylation of band 3 occurs during P. falciparum growth, leading to the release of microparticles containing hemicromes and structural weakening of the host cell membrane, simplifying merozoite reinfection. Syk inhibitors block these events by interacting with the Syk protein’s catalytic site. We performed in vitro proteomics and in silico studies and compared the results. In vitro studies were based on treatment of the parasite’s cellular cultures with different concentrations of Syk inhibitors, while proteomics studies were focused on the Tyr phosphorylation of band 3 by Syk protein with the same concentrations of drugs. In silico studies were based on different molecular modeling approaches in order to analyze and optimize the ligand–protein interactions and obtain the highest efficacy in vitro. In the presence of Syk inhibitors, we observed a marked decrease of band 3 Tyr phosphorylation according to the increase of the drug’s concentration. Our studies could be useful for the structural optimization of these compounds and for the design of novel Syk inhibitors in the future.
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Egan G, Athale U, Johnston D, Pole JD, Silva M, Zorzi A, Alexander S. Outcomes of children with chronic myeloid leukemia: A population-based cohort study. Pediatr Blood Cancer 2020; 67:e28491. [PMID: 32589368 DOI: 10.1002/pbc.28491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/13/2020] [Accepted: 05/20/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Chronic myeloid leukemia (CML) is a rare disease in childhood. While hematopoietic stem cell transplant (HSCT) was the treatment of choice for CML prior to 2000, the introduction of tyrosine kinase inhibitors (TKIs) changed the management of this disease. This population-based analysis was conducted in the province of Ontario, Canada to gather information on treatment choices and outcomes of childhood CML. METHOD Using a provincial childhood cancer registry and retrospective review of patient medical records for patients < 18 years diagnosed with CML between 1985 and 2018, data on presenting features, treatment, and outcomes were collected from 52 patients. RESULTS Patients treated before the introduction of TKIs (before 2002) mainly received HSCT and had an overall survival (OS) of 64% at a median follow up of 6 years. The OS of all patients treated in the TKI era (2002 and after) was 90% at a median follow up of 3 years. All three deaths in the TKI era were related to HSCT complications. Survival of patients who remained on a TKI was significantly improved compared to those who underwent HSCT post-TKI therapy (100% vs 66%, P = .008). TKIs were well tolerated. CONCLUSION Given the increased mortality associated with HSCT in our cohort, further advances in HSCT may be required to outweigh the benefits of a TKI monotherapy approach in the majority of childhood CML patients. We believe HSCT should be considered in only a limited subset of pediatric patients with CML.
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Affiliation(s)
- Grace Egan
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Uma Athale
- Division of Haematology/Oncology, McMaster University, Hamilton, Ontario, Canada
| | - Donna Johnston
- Division of Hematology/Oncology, University of Ottawa, Ottawa, Ontario, Canada
| | - Jason D Pole
- Centre for Health Services Research, University of Queensland, Brisbane, Queensland, Australia
| | - Mariana Silva
- Division of Haematology/Oncology, Kingston General Hospital, Kingston, Ontario, Canada
| | - Alexandra Zorzi
- Division of Haematology/Oncology, Western University, London, Ontario, Canada
| | - Sarah Alexander
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
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Pearson H, Marshall LV, Carceller F. Sorafenib in pediatric hepatocellular carcinoma from a clinician perspective. Pediatr Hematol Oncol 2020; 37:412-423. [PMID: 32183592 DOI: 10.1080/08880018.2020.1740844] [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: 01/02/2023]
Abstract
Hepatocellular Carcinoma (HCC) is a rare tumor in children and normally carries poor outcomes. The most frequently employed chemotherapy regimen includes cisplatin and doxorubicin (PLADO), but this combination offers limited efficacy. Sorafenib is a multi-tyrosine kinase inhibitor which, following positive studies in adults with HCC, has begun to be introduced in conjunction with PLADO in pediatric oncology with some encouraging results. Based on these findings, the use of sorafenib is become more common in children with unresectable and/or metastatic HCC. The care of patients receiving sorafenib requires appropriate expertise and standardized pediatric guidelines are lacking. An increasing number of children with HCC are expected to receive sorafenib in the years to come. Pediatric oncology clinicians have a key role in identifying side effects early and clinicians caring for children receiving sorafenib need to be familiar with these. This review article provides suitable and practical information on sorafenib for educational development to optimize clinical care and facilitate enhanced patient/parent education. The article addresses specific areas including mechanisms of action, pre-clinical and clinical evidence, dosing and drug administration and toxicities of sorafenib. Clinical research and recommendations for managing sorafenib-related side effects are discussed. Underpinned by research, this article provides pediatric oncology clinicians with the knowledge required to deliver optimal care to children receiving sorafenib.
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Affiliation(s)
- Helen Pearson
- The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom
| | - Lynley V Marshall
- The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom.,The Institute of Cancer Research, Division of Clinical Studies and Cancer Therapeutics, Sutton, Surrey, United Kingdom
| | - Fernando Carceller
- The Royal Marsden NHS Foundation Trust, Sutton, Surrey, United Kingdom.,The Institute of Cancer Research, Division of Clinical Studies and Cancer Therapeutics, Sutton, Surrey, United Kingdom
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25
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de Sousa GR, Vieira GM, das Chagas PF, Pezuk JA, Brassesco MS. Should we keep rocking? Portraits from targeting Rho kinases in cancer. Pharmacol Res 2020; 160:105093. [PMID: 32726671 DOI: 10.1016/j.phrs.2020.105093] [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: 06/30/2020] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 12/12/2022]
Abstract
Cancer targeted therapy, either alone or in combination with conventional chemotherapy, could allow the survival of patients with neoplasms currently considered incurable. In recent years, the dysregulation of the Rho-associated coiled-coil kinases (ROCK1 and ROCK2) has been associated with increased metastasis and poorer patient survival in several tumor types, and due to their essential roles in regulating the cytoskeleton, have gained popularity and progressively been researched as targets for the development of novel anti-cancer drugs. Nevertheless, in a pediatric scenario, the influence of both isoforms on prognosis remains a controversial issue. In this review, we summarize the functions of ROCKs, compile their roles in human cancer and their value as prognostic factors in both, adult and pediatric cancer. Moreover, we provide the up-to-date advances on their pharmacological inhibition in pre-clinical models and clinical trials. Alternatively, we highlight and discuss detrimental effects of ROCK inhibition provoked not only by the action on off-targets, but most importantly, by pro-survival effects on cancer stem cells, dormant cells, and circulating tumor cells, along with cell-context or microenvironment-dependent contradictory responses. Together these drawbacks represent a risk for cancer cell dissemination and metastasis after anti-ROCK intervention, a caveat that should concern scientists and clinicians.
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Affiliation(s)
| | | | | | | | - María Sol Brassesco
- Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Brazil.
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26
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Carofiglio F, Lopalco A, Lopedota A, Cutrignelli A, Nicolotti O, Denora N, Stefanachi A, Leonetti F. Bcr-Abl Tyrosine Kinase Inhibitors in the Treatment of Pediatric CML. Int J Mol Sci 2020; 21:ijms21124469. [PMID: 32586039 PMCID: PMC7352889 DOI: 10.3390/ijms21124469] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/10/2020] [Accepted: 06/18/2020] [Indexed: 02/07/2023] Open
Abstract
The therapeutic approach to Chronic Myeloid Leukemia (CML) has changed since the advent of the tyrosine kinase inhibitor (TKI) imatinib, which was then followed by the second generation TKIs dasatinib, nilotinib, and, finally, by ponatinib, a third-generation drug. At present, these therapeutic options represent the first-line treatment for adults. Based on clinical experience, imatinb, dasatinib, and nilotinib have been approved for children even though the studies that were concerned with efficacy and safety toward pediatric patients are still awaiting more specific and high-quality data. In this scenario, it is of utmost importance to prospectively validate data extrapolated from adult studies to set a standard therapeutic management for pediatric CML by employing appropriate formulations on the basis of pediatric clinical trials, which allow a careful monitoring of TKI-induced adverse effects especially in growing children exposed to long-term therapy.
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MESH Headings
- Child
- Fusion Proteins, bcr-abl/antagonists & inhibitors
- Fusion Proteins, bcr-abl/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Prognosis
- Protein Kinase Inhibitors/therapeutic use
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Affiliation(s)
| | | | | | | | | | | | - Angela Stefanachi
- Correspondence: (A.S.); (F.L.); Tel.: +39-08-0544-2783 (A.S.); +39-08-0544-2784 (F.L.)
| | - Francesco Leonetti
- Correspondence: (A.S.); (F.L.); Tel.: +39-08-0544-2783 (A.S.); +39-08-0544-2784 (F.L.)
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27
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Bettoni da Cunha-Riehm C, Hildebrand V, Nathrath M, Metzler M, Suttorp M. Vaccination With Live Attenuated Vaccines in Four Children With Chronic Myeloid Leukemia While on Imatinib Treatment. Front Immunol 2020; 11:628. [PMID: 32362894 PMCID: PMC7181227 DOI: 10.3389/fimmu.2020.00628] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/19/2020] [Indexed: 12/11/2022] Open
Abstract
Chronic myeloid leukemia (CML) in childhood and adolescence is a rare malignancy that can successfully be treated with the tyrosine kinase inhibitor (TKI) imatinib. According to the current experience, treatment is necessary for years and, in the majority of cases, a lifelong approach is required to control the malignant disease. To what extent imatinib causes immunosuppression in different age cohorts is a controversial discussion. According to general medical recommendations, live vaccines are contraindicated in individuals treated with imatinib. However, a recent increase in the number of globally reported cases of measles has been observed and continues to rise. Due to the high contagiousness of the virus, near-perfect vaccination coverage (herd immunity of 93 to 95%) is required to effectively protect against measles resurgence-a scenario that is not realistic in many countries. When four teenagers with CML (median age 13 years, range 12-15) who were enrolled into pediatric trial CML-paed II while on imatinib treatment (median treatment duration 36 months, range 11-84) were identified without protective measles and/or varicella titers, we carefully balanced the risks of a live vaccination under immunosuppressive TKI medication against the benefit of being protected. The patients underwent live vaccination with the live attenuated vaccines M-M-RVAX Pro® and Varivax® simultaneously (Patient #1), Priorix® and Varilix® consecutively (Patient #2), and Priorix® (Patients #3 and #4). While the first three patients were vaccinated while receiving TKI therapy, treatment with imatinib was interrupted in patient #4 for 1 week prior and 2 weeks after vaccination. Patients #1 and #3 reacted with stable long-term seroconversion. In Patient #2, serum titer conversion against measles and varicella could not be demonstrated and thus revaccination with Priorix® and Varilix® was performed 3 years later. However, protective titers did not develop or were lost again. Patient #4 also lost protective titers against measles when assessed 10 months after vaccination, but revaccination resulted in stable seroprotective titers over 12 months after the last vaccination during ongoing imatinib treatment. We conclude that in all patients, the safety of live vaccines could be documented, as no acute or late adverse events were observed. However, in line with observations that memory B-cells are lost under exposure to imatinib, revaccination may become necessary (two out of four patients in this small series lost their seroprotection). Considering that the number of cases is very small, we also suggest some criteria for decision-making regarding live vaccinations of CML patients treated with imatinib.
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Affiliation(s)
| | - Verena Hildebrand
- Department of Pediatric Hematology and Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Michaela Nathrath
- Department of Pediatric Hematology and Oncology, Klinikum Kassel, Kassel, Germany
| | - Markus Metzler
- Department of Pediatric Hematology and Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Meinolf Suttorp
- Medical Faculty, Pediatric Hemato-Oncology, Technical University Dresden, Dresden, Germany
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Ganguly S, Pushpam D, Mian A, Chopra A, Gupta R, Bakhshi S. Real-world Experience of Imatinib in Pediatric Chronic Phase Chronic Myeloid Leukemia: A Single-center Experience From India. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2020; 20:e437-e444. [PMID: 32247650 DOI: 10.1016/j.clml.2020.02.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Chronic myeloid leukemia (CML) is an uncommon malignancy in children in which tyrosine kinase inhibitors (TKIs) have significantly improved outcome in recent years. PATIENTS AND METHODS We performed a retrospective analysis of CML patients (≤ 18 years old) presenting to our center between January 2005 and December 2018 with respect to baseline demographics, response to imatinib, and real-world management of those with a suboptimal response. RESULTS A total of 124 patients were diagnosed with CML with 99 (80%) in the chronic phase. There was a male preponderance (males:females = 3.1:1) with a median age of 13 years. The common presenting clinical features were splenomegaly (90.9%) and fever (51.5%) with a median leukocyte count of 165 × 103/μL. The proportion of patients attaining a complete hematologic response (CHR) at 3 months, a complete cytogenetic response (CCyR) at 12 months, and a major molecular response at 12 months were 79.7%, 54.1%, and 50.9%, respectively. At a median follow-up of 67.4 months, the 5-year overall survival rate and the event-free survival (EFS) rate were 92% ± 3% and 64% ± 6%, respectively. Failure to achieve CCyR at 12 months was associated with poor EFS beyond 1 year (hazard ratio = 2.865, P = .044). Among 15 patients not achieving CHR at 3 months, dose escalation of imatinib resulted in the attainment of CHR in 13 (87%) patients. Seven patients in the cohort had a loss of the established response to imatinib because of documented poor compliance. CONCLUSION Imatinib remains the frontline treatment of choice in CML with a reasonable outcome in children, especially when financial affordability, availability of second-generation TKIs, and poor compliance still remain major challenges in management. Dose escalation of imatinib remains an option in patients with a suboptimal response.
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Affiliation(s)
- Shuvadeep Ganguly
- Department of Medical Oncology, Dr. BRA Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, AIIMS, New Delhi, India
| | - Deepam Pushpam
- Department of Medical Oncology, Dr. BRA Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, AIIMS, New Delhi, India
| | - Agrima Mian
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Anita Chopra
- Department of Laboratory Oncology, Dr. BRA Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Ritu Gupta
- Department of Laboratory Oncology, Dr. BRA Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Sameer Bakhshi
- Department of Medical Oncology, Dr. BRA Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, AIIMS, New Delhi, India.
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29
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Deng M, Guan X, Wen X, Xiao J, An X, Yu J. Clinical efficacy and safety of imatinib treatment in children and adolescents with chronic myeloid leukemia: A single-center experience in China. Medicine (Baltimore) 2020; 99:e19150. [PMID: 32049841 PMCID: PMC7035079 DOI: 10.1097/md.0000000000019150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chronic myeloid leukemia (CML) is relatively rare in childhood and few studies have reported the clinical use of imatinib (IM) in pediatric CML. In this study, we evaluated the efficacy and tolerability of IM in children and adolescents with CML.We investigated 21 patients under 18 years of age with newly diagnosed CML and treated with IM in Children's Hospital of Chongqing Medical University between May 2014 and February 2018. The disease was staged according to the European LeukemiaNet criteria and the IM dose was determined based on the disease stage. Cumulative responses and survival probabilities were estimated according to the Kaplan-Meier method.The estimated complete hematologic response rate of chronic phase-chronic myeloid leukemia (CML-CP) was 89.5% at 3 months. The complete cytogenetic response rates increased with time, reaching 47.4%, 73.7%, and 80.3% at 6, 12, and 24 months, respectively. The cumulative major molecular response rates were 42.1% and 76.3% at 12 and 24 months, respectively. With a median follow-up time of 33.8 months (range, 3.2-61.7 months), the estimated 2-year overall survival (OS) rate for CML was 95.2% (95% confidence interval [CI], 70.7%-99.3%). None of the CML-CP patients progressed to the accelerated phase or had a blast crisis. The 2-year OS and progression-free survival rates for the CML-CP cohort were both 100%, while the estimated 2-year event-free survival rate was 68% (95% CI, 42.1%-84.2%). None of the patients in this group had treatment-related deaths or IM discontinuation due to drug toxicities, and only 1 patient had a grade III-IV nonhematologic adverse event. Overall, anemia was the most common adverse effect and 42.9% of patients had a decrease in bone mineral density.IM was effective and the adverse effects were well-tolerated throughout the follow-up period in Chinese CML patients under 18 years of age.
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Affiliation(s)
- Mengyue Deng
- Department of Hematology and Oncology; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Children's Hospital of Chongqing Medical University
- Chongqing Key Laboratory of Pediatrics, Chongqing, P.R China
| | - Xianmin Guan
- Department of Hematology and Oncology; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Children's Hospital of Chongqing Medical University
- Chongqing Key Laboratory of Pediatrics, Chongqing, P.R China
| | - Xianhao Wen
- Department of Hematology and Oncology; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Children's Hospital of Chongqing Medical University
- Chongqing Key Laboratory of Pediatrics, Chongqing, P.R China
| | - Jianwen Xiao
- Department of Hematology and Oncology; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Children's Hospital of Chongqing Medical University
- Chongqing Key Laboratory of Pediatrics, Chongqing, P.R China
| | - Xizhou An
- Department of Hematology and Oncology; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Children's Hospital of Chongqing Medical University
- Chongqing Key Laboratory of Pediatrics, Chongqing, P.R China
| | - Jie Yu
- Department of Hematology and Oncology; Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Children's Hospital of Chongqing Medical University
- Chongqing Key Laboratory of Pediatrics, Chongqing, P.R China
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Adiwidjaja J, Boddy AV, McLachlan AJ. Implementation of a Physiologically Based Pharmacokinetic Modeling Approach to Guide Optimal Dosing Regimens for Imatinib and Potential Drug Interactions in Paediatrics. Front Pharmacol 2020; 10:1672. [PMID: 32082165 PMCID: PMC7002565 DOI: 10.3389/fphar.2019.01672] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 12/23/2019] [Indexed: 12/18/2022] Open
Abstract
Long-term use of imatinib is effective and well-tolerated in children with chronic myeloid leukaemia (CML) yet defining an optimal dosing regimen for imatinib in younger patients is a challenge. The potential interactions between imatinib and coadministered drugs in this “special” population also remains largely unexplored. This study implements a physiologically based pharmacokinetic (PBPK) modeling approach to investigate optimal dosing regimens and potential drug interactions with imatinib in the paediatric population. A PBPK model for imatinib was developed in the Simcyp Simulator (version 17) utilizing in silico, in vitro drug metabolism, and in vivo pharmacokinetic data and verified using an independent set of published clinical pharmacokinetic data. The model was then extrapolated to children and adolescents (aged 2–18 years) by incorporating developmental changes in organ size and maturation of drug-metabolising enzymes and plasma protein responsible for imatinib disposition. The PBPK model described imatinib pharmacokinetics in adult and paediatric populations and predicted drug interaction with carbamazepine, a cytochrome P450 (CYP)3A4 and 2C8 inducer, with a good accuracy (evaluated by visual inspections of the simulation results and predicted pharmacokinetic parameters that were within 1.25-fold of the clinically observed values). The PBPK simulation suggests that the optimal dosing regimen range for imatinib is 230–340 mg/m2/d in paediatrics, which is supported by the recommended initial dose for treatment of childhood CML. The simulations also highlighted that children and adults being treated with imatinib have similar vulnerability to CYP modulations. A PBPK model for imatinib was successfully developed with an excellent performance in predicting imatinib pharmacokinetics across age groups. This PBPK model is beneficial to guide optimal dosing regimens for imatinib and predict drug interactions with CYP modulators in the paediatric population.
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Affiliation(s)
- Jeffry Adiwidjaja
- Sydney Pharmacy School, The University of Sydney, Sydney, NSW, Australia
| | - Alan V Boddy
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia.,University of South Australia Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Andrew J McLachlan
- Sydney Pharmacy School, The University of Sydney, Sydney, NSW, Australia
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31
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Athale U, Hijiya N, Patterson BC, Bergsagel J, Andolina JR, Bittencourt H, Schultz KR, Burke MJ, Redell MS, Kolb EA, Johnston DL. Management of chronic myeloid leukemia in children and adolescents: Recommendations from the Children's Oncology Group CML Working Group. Pediatr Blood Cancer 2019; 66:e27827. [PMID: 31330093 PMCID: PMC6944522 DOI: 10.1002/pbc.27827] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/23/2019] [Accepted: 05/04/2019] [Indexed: 12/16/2022]
Abstract
Chronic myeloid leukemia (CML) accounts for 2-3% of leukemias in children under 15 and 9% in adolescents aged 15-19. The diagnosis and management of CML in children, adolescents, and young adults have several differences compared to that in adults. This review outlines the diagnosis and management of the underlying disease as well as challenges that can occur when dealing with CML in this patient population.
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Affiliation(s)
- Uma Athale
- Division of Hematology/Oncology, McMaster Children's Hospital at Hamilton Health Sciences, Hamilton, Ontario, Canada
| | - Nobuko Hijiya
- Division of Hematology/Oncology, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Briana C Patterson
- Division of Pediatric Endocrinology and Metabolism, Emory University School of Medicine, Atlanta, Georgia
- Division of Hematology/Oncology, Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Georgia
| | - John Bergsagel
- Division of Hematology/Oncology, Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Georgia
| | - Jeffrey R Andolina
- Division of Hematology/Oncology, Golisano Children's Hospital, University of Rochester, Rochester, New York
| | - Henrique Bittencourt
- Division of Hematology/Oncology, Ste Justine University Hospital Center, Montreal, Quebec, Canada
| | - Kirk R Schultz
- Division of Hematology/Oncology/BMT, British Columbia Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Michael J Burke
- Division of Hematology/Oncology, Children's Hospital of Wisconsin, Milwaukee, Wisconsin
| | - Michele S Redell
- Division of Hematology/Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - E Anders Kolb
- Nemours Center for Cancer and Blood Disorders, Nemours/Alfred I DuPont Hospital for Children, Wilmington, Delaware
| | - Donna L Johnston
- Division of Hematology/Oncology, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
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Demographics and Outcome of Philadelphia-positive ALL in a Pediatric Population in North India: a Single-center Experience. J Pediatr Hematol Oncol 2019; 41:376-381. [PMID: 31033785 DOI: 10.1097/mph.0000000000001492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Philadelphia-positive (Ph+) acute lymphoblastic leukemia (ALL) in children had a worse outcome before the use of tyrosine kinase inhibitors. We have evaluated the demographics and outcome of Ph+ ALL patients treated with imatinib without blood marrow transplantation. Of the 206 children with ALL registered for treatment, the demographic data of 15 Ph+ ALL patients were compared with the remaining Ph- patients. Imatinib (340 mg/m) was started on day 5 (D5) of induction in Ph+ patients, and their overall survival was compared with Ph- high-risk patients treated on similar protocols. Statistical analysis was carried out by the Fisher exact test and the t test. The Kaplan-Meier test was used for survival analysis. Philadelphia positivity noted in 15/206 (7.28%) ALL patients was higher than reported earlier. Median initial total leukocyte count and central nervous system positivity were significantly higher in Ph+ patients. Myeloid markers, CD13 and CD33, were also positive in 33.3% Ph+ patients. D15 and D35 marrow showed remissions in a larger proportion of Ph+ ALL, as compared with Ph- patients, but chemotherapy interruptions and neutropenic deaths were significantly higher after starting imatinib, as compared with Philadelphia high-risk patients. Overall survival was similar in Ph+ and Ph- high-risk ALL patients. Ph+ ALL, noted in 7.28%, presented with high initial white blood cell counts, high central nervous system positivity, poor steroid response, and higher induction deaths, as compared with high-risk Ph- ALL, and raised the question about the appropriate dose and time of introduction of imatinib to prevent toxicity.
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Bernard C, Suman FR, Rashmika R, Latha MS, Scott JX, Rajesh V. Profile of Pediatric Chronic Myeloid Leukemia in the Era of Imatinib: A Study from South India. Indian J Med Paediatr Oncol 2019. [DOI: 10.4103/ijmpo.ijmpo_234_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Abstract
Introduction: Chronic myeloid leukemia (CML), a chronic hematologic malignancy, is rare in pediatric patients. Studies of the tyrosine kinase inhibitor imatinib are required so that uniform guidelines may focus on disease therapy and follow-up for children. We analyzed the clinicohematologic features of the disease, treatment response to imatinib, follow-up measures, and the impact of the disease on the patients and their family. Materials and Methods: All pediatric patients diagnosed with CML and treated and followed-up were studied regarding demographics, clinical features at presentation, and diagnostic profile, including laboratory parameters, peripheral blood smear test, fluorescent in situ hybridization and karyotyping, and reverse-transcriptase polymerase chain reaction for the BCR-ABL fusion gene. Treatment modalities, adverse reactions, remedial measures, assessment at every follow-up visit, patient’s education, parents’ socioeconomic status, and economic and psychological stresses were also evaluated. Results: Six patients were administered upfront therapy with a standard dose of imatinib. Hematological and biochemical parameters were monitored after the drug administration. We assessed the treatment response using molecular detection of the BCR-ABL transcripts. All patients who complied with drug therapy showed a complete molecular response and minimal toxic symptoms. However, parents found it difficult to cope socially and economically. Conclusion: Imatinib mesylate is effective and has a good molecular response, minimal toxicity, and good patient compliance. However, due to its cost, families reacquire financial debt, and the disease creates uncertainty about the child’s future, thereby necessitating psychosocioeconomic support for parents. Changes in the policies of cancer support groups are urgently needed to provide lifelong, lifesaving drugs free of cost.
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Affiliation(s)
- Catherene Bernard
- Departments of Pathology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - Febe R Suman
- Departments of Pathology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - Rajendran Rashmika
- Departments of Pathology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - Magatha Sneha Latha
- Departments of Pediatric Hematology Oncology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - Julius Xavier Scott
- Departments of Pediatric Hematology Oncology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - V Rajesh
- Departments of Pediatric Hematology Oncology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Chennai, Tamil Nadu, India
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Kroschwald LM, Tauer JT, Kroschwald SI, Suttorp M, Wiedenfeld A, Beissert S, Bauer A, Rauner M. Imatinib mesylate and nilotinib decrease synthesis of bone matrix in vitro. Oncol Lett 2019; 18:2102-2108. [PMID: 31423283 DOI: 10.3892/ol.2019.10518] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 05/13/2019] [Indexed: 11/06/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs), such as imatinib (IMA) and nilotinib (NIL), are the cornerstone of chronic myeloid leukemia (CML) treatment via the blockade of the oncogenic BCR-ABL1 fusion protein. However, skeletal side effects are commonly observed in pediatric patients receiving long-term treatment with IMA. Additionally, in vitro studies have shown that IMA and NIL alter vitamin D metabolism, which may further impair bone metabolism. To determine whether TKIs directly affect bone cell function, the present study treated the human osteoblastic cell line SaOS-2 with IMA or NIL and assessed effects on their mineralization capacity as well as mRNA expression of receptor activator of nuclear factor κB ligand (RANKL) and osteoprotegerin (OPG), two cytokines that regulate osteoclastogenesis. Both TKIs significantly inhibited mineralization and downregulated osteoblast marker genes, including alkaline phosphatase, osteocalcin, osterix, as well as genes associated with the pro-osteogenic Wnt signaling pathway; NIL was more potent than IMA. In addition, both TKIs increased the RANKL/OPG ratio, which is known to stimulate osteoclastogenesis. The present results suggested that the TKIs IMA and NIL directly inhibited osteoblast differentiation and directly promoted a pro-osteoclastogenic environment through the RANKL-OPG signaling axis. Thus, we propose that future work is required to determine whether the bone health of CML patients undergoing TKI-treatment should be routinely monitored.
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Affiliation(s)
- Lysann Michaela Kroschwald
- Department of Dermatology, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany.,Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany
| | - Josephine Tabea Tauer
- Department of Pediatrics, Shriners Hospital for Children, McGill University, Montreal QC H4A 0A9, Canada
| | - Sonja Ingrid Kroschwald
- Simon Alberti Group, Max Planck Institute of Molecular Cell Biology and Genetics, D-01307 Dresden, Germany.,Institute for Biochemistry, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Meinolf Suttorp
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany
| | - Anne Wiedenfeld
- Department of Dermatology, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany
| | - Stefan Beissert
- Department of Dermatology, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany
| | - Andrea Bauer
- Department of Dermatology, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany
| | - Martina Rauner
- Department of Medicine III and Center for Healthy Aging, Medical Faculty, Technical University Dresden, D-01307 Dresden, Germany
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Drozdov D, Bonaventure A, Nakata K, Suttorp M, Belot A. Temporal trends in the proportion of "cure" in children, adolescents, and young adults diagnosed with chronic myeloid leukemia in England: A population-based study. Pediatr Blood Cancer 2018; 65:e27422. [PMID: 30168243 DOI: 10.1002/pbc.27422] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 06/19/2018] [Accepted: 07/25/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Survival probability in children, adolescents, and young adults with chronic myeloid leukemia (CML) has dramatically improved during recent years. Tyrosine kinase inhibitors (TKI), targeted drugs developed for patients with CML, were introduced in 2001 in England. We here quantify the trends in the "cure" proportion according to the year of diagnosis. METHODS We included all children, adolescents, and young patients with CML (0 to 24 years) diagnosed in England during 1980 to 2005. We fitted mixture cure models to estimate the "cure" proportion and the median survival time among the "uncured" patients according to the year of diagnosis, adjusted for age at diagnosis. RESULTS The "cure" proportion increased dramatically between 1980 and 2005, from under 10% to over 80%, while conversely, the median survival time of "uncured" patients decreased slightly between 1980 and 1999, with the trend from 2000 being uncertain. CONCLUSIONS The striking improvement of the "cure" fraction in young patients with CML since the early 1980s is concomitant with improvement of treatment, especially the allogeneic hematopoietic stem-cell transplant and, later, the introduction of TKI. The trends over the last years (2000-2005) remain, however, uncertain and would benefit from further studies with more recent data and updated follow-up.
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Affiliation(s)
- Daniel Drozdov
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
- Division of Pediatric Oncology, Department of Pediatrics, Cantonal Hospital of Aarau, Aarau, Switzerland
| | - Audrey Bonaventure
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Kayo Nakata
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
- Cancer Control Centre, Osaka International Cancer Institute, Osaka, Japan
| | - Meinolf Suttorp
- Division of Pediatric Hematology-Oncology-Blood and Marrow Transplantation, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Aurélien Belot
- Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
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36
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Jing X, Meng X, Gao Y, Yu J, Liu B. A 4-month-old boy with gastrointestinal stromal tumor of mesocolon. Cancer Biol Ther 2018; 20:8-14. [PMID: 30252568 DOI: 10.1080/15384047.2018.1504719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are very uncommon in pediatric patients, and they are distinct clinical-pathological and molecular deviations from their adult counterparts. Most pediatric GISTs lack the c-kit or platelet-derived growth factor receptor alpha (PDGFRA) genes mutations. To date, there is no published standard guidelines available for the best treatment of pediatric GISTs, especially for infant GIST. Therefore, we report a case of 4-month-old infant with GIST of mesocolon without KIT/PDGFRA mutation. We also review the clinical, biological, and genetic features of pediatric GISTs and re-think several questions that could affect clinical practice.
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Affiliation(s)
- Xuquan Jing
- a Department of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, China
| | - Xue Meng
- a Department of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, China
| | - Yongsheng Gao
- b Department of Pathology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, China
| | - Jinming Yu
- a Department of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, China
| | - Bo Liu
- c Department of Oncology , Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences , Jinan , China
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37
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Suttorp M, Schulze P, Glauche I, Göhring G, von Neuhoff N, Metzler M, Sedlacek P, de Bont ESJM, Balduzzi A, Lausen B, Aleinikova O, Sufliarska S, Henze G, Strauss G, Eggert A, Kremens B, Groll AH, Berthold F, Klein C, Groß-Wieltsch U, Sykora KW, Borkhardt A, Kulozik AE, Schrappe M, Nowasz C, Krumbholz M, Tauer JT, Claviez A, Harbott J, Kreipe HH, Schlegelberger B, Thiede C. Front-line imatinib treatment in children and adolescents with chronic myeloid leukemia: results from a phase III trial. Leukemia 2018; 32:1657-1669. [PMID: 29925908 DOI: 10.1038/s41375-018-0179-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 12/16/2022]
Abstract
A total of 156 patients (age range 1.3-18.0 years, median 13.2 years; 91 (58.3%) male) with newly diagnosed CML (N = 146 chronic phase (CML-CP), N = 3 accelerated phase (CML-AP), N = 7 blastic phase (CML-BP)) received imatinib up-front (300, 400, 500 mg/m2, respectively) within a prospective phase III trial. Therapy response, progression-free survival, causes of treatment failure, and side effects were analyzed in 148 children and adolescents with complete data. Event-free survival rate by 18 months for patients in CML-CP (median follow-up time 25 months, range: 1-120) was 97% (95% CI, 94.2-99.9%). According to the 2006 ELN-criteria complete hematologic response by month 3, complete cytogenetic response (CCyR) by month 12, and major molecular response (MMR) by month 18 were achieved in 98, 63, and 59% of the patients, respectively. By month 36, 86% of the patients achieved CCyR and 74% achieved MMR. Thirty-eight patients (27%) experienced imatinib failure because of unsatisfactory response or intolerance (N = 9). In all, 28/148 patients (19%) underwent stem cell transplantation (SCT). In the SCT sub-cohort 2/23 patients diagnosed in CML-CP, 0/1 in CML-AP, and 2/4 in CML-BP, respectively, died of relapse (N = 3) or SCT-related complications (N = 2). This large pediatric trial extends and confirms data from smaller series that first-line imatinib in children is highly effective.
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Affiliation(s)
- Meinolf Suttorp
- Pediatric Hematology and Oncology, Department of Pediatrics, University Hospital "Carl Gustav Carus", TU Dresden, Dresden, Germany.
| | - Philipp Schulze
- Institute for Medical Informatics and Biometry, Faculty of Medicine "Carl Gustav Carus", TU Dresden, Dresden, Germany
| | - Ingmar Glauche
- Institute for Medical Informatics and Biometry, Faculty of Medicine "Carl Gustav Carus", TU Dresden, Dresden, Germany
| | - Gudrun Göhring
- Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Nils von Neuhoff
- Department of Human Genetics, Hannover Medical School, Hannover, Germany.,Department of Pediatrics III, University Hospital, University of Duisburg-Essen, Duisberg, Germany
| | - Markus Metzler
- Pediatric Hematology and Oncology, University Children's Hospital, Erlangen, Germany
| | - Petr Sedlacek
- Pediatric Hematology and Oncology, Teaching Hospital Motol, 2nd Medical School, Charles University Motol, Prague, Czech Republic
| | - Eveline S J M de Bont
- Pediatric Hematology and Oncology, University Children's Hospital, Groningen, The Netherlands.,Dutch Childhood Oncology Group (DCOG), The Hague, The Netherlands
| | - Adriana Balduzzi
- Pediatric Hematology and Hematopoietic Stem Cell Transplantation Unit, Clinica Pediatrica Università degli Studi di Milano Bicocca, Ospedale San Gerardo, Monza, Italy
| | - Birgitte Lausen
- Department of Pediatric and Adolescent Medicine, University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Olga Aleinikova
- Belarus Research Center for Pediatric Oncology, Hematology, and Immunology, Minsk, Belarus
| | - Sabina Sufliarska
- Department of Pediatrics, BMT Unit, Comenius University Children's Hospital, Bratislava, Slovakia
| | - Günter Henze
- Pediatric Hematology and Oncology, University Children's Hospital, Charité Berlin, Germany
| | - Gabriele Strauss
- Pediatric Hematology and Oncology, University Children's Hospital, Charité Berlin, Germany.,Pediatric Hematology and Oncology, Helios KlinikenBerlin-Buch, Berlin, Germany
| | - Angelika Eggert
- Pediatric Hematology and Oncology, University Children's Hospital, Charité Berlin, Germany
| | - Bernhard Kremens
- Department of Pediatrics III, University Hospital, University of Duisburg-Essen, Duisberg, Germany
| | - Andreas H Groll
- Pediatric Hematology and Oncology, University Children's Hospital, Münster, Germany
| | - Frank Berthold
- Pediatric Hematology and Oncology, University Children's Hospital, Cologne, Germany
| | - Christoph Klein
- University Children's Hospital, Ludwig Maximilians University, Munich, Germany
| | - Ute Groß-Wieltsch
- Pediatric Oncology, Hematology, Immunology, Stuttgart Cancer Center, Klinikum Stuttgart-Olgahospital, Stuttgart, Germany
| | - Karl Walter Sykora
- Paediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Arndt Borkhardt
- Pediatric Hematology, Oncology, and Clinical Immunology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Andreas E Kulozik
- Pediatric Oncology, Hematology, and Immunology, University Children's Hospital, Heidelberg, Germany
| | - Martin Schrappe
- Pediatric Hematology and Oncology, University Children's Hospital, Kiel, Germany
| | - Christina Nowasz
- Pediatric Hematology and Oncology, Department of Pediatrics, University Hospital "Carl Gustav Carus", TU Dresden, Dresden, Germany
| | - Manuela Krumbholz
- Pediatric Hematology and Oncology, University Children's Hospital, Erlangen, Germany
| | - Josephine T Tauer
- Pediatric Hematology and Oncology, Department of Pediatrics, University Hospital "Carl Gustav Carus", TU Dresden, Dresden, Germany.,Shriners Hospitals for Children, Montréal, Canada
| | - Alexander Claviez
- Pediatric Hematology and Oncology, University Children's Hospital, Kiel, Germany
| | - Jochen Harbott
- Oncogenetic Laboratory, Pediatric Hematology and Oncology, University Children's Hospital, Giessen, Germany
| | - Hans H Kreipe
- Institute of Pathology, Hannover Medical School, Hannover, Germany
| | | | - Christian Thiede
- Medical Department I, University Hospital "Carl Gustav Carus", TU Dresden, Dresden, Germany
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Visalli T, Bower N, Kokate T, Andrews PA. Lack of value of juvenile animal toxicity studies for supporting the safety of pediatric oncology phase I trials. Regul Toxicol Pharmacol 2018; 96:167-177. [PMID: 29763632 DOI: 10.1016/j.yrtph.2018.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/07/2018] [Accepted: 05/11/2018] [Indexed: 02/04/2023]
Abstract
Toxicity studies in juvenile animals (JAS) are sometimes performed to support clinical trials in pediatric oncology patients, and there are differing conclusions on the value of JAS for pediatric drug development. This manuscript provides a review of the pediatric clinical data for 25 molecularly-targeted and 4 biologic anticancer therapeutics. Other publications that evaluated the value of JAS in pediatric drug development focus on differences in toxicity between juvenile animals and adult animals. The present paper examines pediatric-specific clinical findings to focus on dose setting in pediatric oncology patients and safety monitoring in terms of the potential value of JAS. Our assessment demonstrates that pediatric starting doses were safe for all 29 therapeutics examined in that no life-threatening toxicities occurred in the first cohort, and overall the ratio of the pediatric maximum tolerated dose (MTD) to the recommended adult dose was close to 1. In addition, the 4 serious adverse events (SAEs) that weren't detectable with standard monitoring plans for pediatric oncology trials would not have been detectable in a standard JAS. This review demonstrates that safe starting doses in pediatric oncology patients for these therapeutics could have been solely based on adult doses without any knowledge of findings in JAS.
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Affiliation(s)
- Thomas Visalli
- Eisai Inc., Global Nonclinical Regulatory Affairs, 155 Tice Boulevard, Woodcliff Lake, NJ 07677, United States.
| | - Nancy Bower
- Eisai Inc., Global Nonclinical Regulatory Affairs, 155 Tice Boulevard, Woodcliff Lake, NJ 07677, United States
| | - Tushar Kokate
- Eisai Inc., Global Nonclinical Regulatory Affairs, 155 Tice Boulevard, Woodcliff Lake, NJ 07677, United States
| | - Paul A Andrews
- Eisai Inc., Global Nonclinical Regulatory Affairs, 155 Tice Boulevard, Woodcliff Lake, NJ 07677, United States
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Nakamura Y, Ishida Y, Kondo M, Shimada S. Direct modification of the 5-HT 3 receptor current by some anticancer drugs. Eur J Pharmacol 2018; 821:21-28. [DOI: 10.1016/j.ejphar.2017.12.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 12/14/2017] [Accepted: 12/21/2017] [Indexed: 11/16/2022]
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40
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Abstract
PURPOSE OF REVIEW To discuss considerations of new paradigms for clinical drug development in pediatric oncology that incorporate our expanding knowledge and complexity of molecular alterations associated with cancer; advances in cancer immunology and cellular therapy; the increasing number of new anticancer drugs, therapeutic approaches, and potential combinations; and recent initiatives by regulatory agencies to improve access to safe and effective therapies. RECENT FINDINGS Cancer in children and adolescents is a rare event with significant long-term impact on individuals and society. Using multimodality therapy, stratified by patient and disease characteristics, the cure rate for childhood cancer exceeds 80%. Cancer genomics has transformed anticancer drug development. Understanding the genetic basis of pediatric cancers and the use of genomics for risk stratification has changed the focus of drug development from cytotoxic drugs to targeted therapeutic approaches. Advances in cancer immunology, immune checkpoint blockade, and cellular therapy offer novel approaches to harness T cells to treat cancer. To improve the outcome for children and adolescents with cancer and accelerate drug development, understanding drug and target interactions in preclinical models of pediatric cancer should be coupled with efficient clinical trial designs that incorporate biomarker selection, assessment of toxicity and drug exposure, and improved measures of response. SUMMARY Clinical trials for children and adolescents with cancer evaluate cytotoxic drugs, molecularly target drugs, immunotherapy as well as combination therapies. The framework for oncology clinical trials will continually adapt to improve efficiency of trials and evaluate new therapeutic approaches.
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41
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Shao H, Zeng Z, Cen J, Zhang J, Bai S, Wu C, Gong Y, Wang Y, Qiu H, Chen S, Pan J. The impact of early molecular response in children and adolescents with chronic myeloid leukemia treated with imatinib: a single-center study from China. Leuk Lymphoma 2018; 59:2152-2158. [PMID: 29334300 DOI: 10.1080/10428194.2017.1422860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Haigang Shao
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Zhao Zeng
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Jiannong Cen
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Jun Zhang
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Shuxiao Bai
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Chunxiao Wu
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Yanlei Gong
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Yong Wang
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Huiying Qiu
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Suning Chen
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Jinlan Pan
- Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
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Kimura Y, Chisaki Y, Saki T, Matsumura C, Motohashi H, Onoue M, Yano Y. Prediction of Apparent Oral Clearance of Small-Molecule Inhibitors in Pediatric Patients. J Pharm Sci 2017; 107:949-956. [PMID: 29133236 DOI: 10.1016/j.xphs.2017.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/14/2017] [Accepted: 11/01/2017] [Indexed: 11/15/2022]
Abstract
The purpose of this study was to build regression models for the prediction of apparent oral clearance (CL/F) for small-molecule inhibitors in the pediatric population using data obtained from adults. Two approaches were taken; a simple allometric regression model which considers no interdrug or interindividual variability and an allometric regression model with mixed-effects modeling where some variability parameters are included in the model. Average CL/F values were obtained for 15 drugs at various dosages from 31 literatures (a total of 139 data sets) conducted in adults and for 15 drugs from 26 literatures (62 data sets) conducted in children. Data were randomly separated into the "modeling" or "validation" data set, and the 2 allometric regression models were applied to the modeling data set. The predictive ability of the models was examined by comparing the observed and model-predicted CL/F in children using the validation data set. The percentage root mean square error was 17.2% and 26.3% in the simple allometric regression model and the allometric regression model with mixed-effects modeling, respectively. The predictive ability of the 2 models seems acceptable, suggesting that they could be useful for predicting the CL/F of new small-molecule inhibitors and for determining adequate doses in clinical pharmacotherapy for children.
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Affiliation(s)
- Yoshihiko Kimura
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan; Department of Pharmacy, Kitano Hospital, The Tazuke Kofukai Medical Research Institute, Kita-ku, Osaka, 530-8480, Japan
| | - Yugo Chisaki
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Tomohiko Saki
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Chikako Matsumura
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Hideyuki Motohashi
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Masahide Onoue
- Department of Pharmacy, Kitano Hospital, The Tazuke Kofukai Medical Research Institute, Kita-ku, Osaka, 530-8480, Japan
| | - Yoshitaka Yano
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan.
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Suttorp M, Bornhäuser M, Metzler M, Millot F, Schleyer E. Pharmacology and pharmacokinetics of imatinib in pediatric patients. Expert Rev Clin Pharmacol 2017; 11:219-231. [PMID: 29076384 DOI: 10.1080/17512433.2018.1398644] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The tyrosine kinase inhibitor (TKI) imatinib was rationally designed to target BCR-ABL1 which is constitutively activated in chronic myeloid leukemia (CML). Following the tremendous success in adults, imatinib also became licensed for treatment of CML in minors. The rarity of pediatric CML hampers the conduction of formal trials. Thus, imatinib is still the single TKI approved for CML treatment in childhood. Areas covered: This review attempts to provide an overview of the literature on pharmacology, pharmacokinetic, and pharmacogenetic of imatinib concerning pediatric CML treatment. Articles were identified through a PubMed search and by reviewing abstracts from relevant hematology congresses. Additional information was provided from the authors' libraries and expertise and from our own measurements of imatinib trough plasma levels in children. Pharmacokinetic variables (e.g. alpha 1-acid glycoprotein binding, drug-drug/food-drug interactions via cytochrome P450 3A4/5, cellular uptake mediated via OCT-1-influx variations and P-glycoprotein-mediated drug efflux) still await to be addressed in pediatric patients systematically. Expert commentary: TKI response rates vary among different individuals and pharmacokinetic variables all can influence CML treatment success. Adherence to imatinib intake may be the most prominent factor influencing treatment outcome in teenagers thus pointing towards the potential benefits of regular drug monitoring.
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Affiliation(s)
- Meinolf Suttorp
- a Pediatric Hematology and Oncology , University Hospital 'Carl Gustav Carus' , Dresden , Germany
| | - Martin Bornhäuser
- b I. Medical Clinic , University Hospital 'Carl Gustav Carus' , Dresden , Germany
| | - Markus Metzler
- c Department of Paediatrics and Adolescent Medicine , University Hospital Erlangen , Erlangen , Germany
| | - Frédéric Millot
- d Pediatric Oncology Unit , CIC 802 INSERM, University Hospital , Poitiers , France
| | - Eberhard Schleyer
- b I. Medical Clinic , University Hospital 'Carl Gustav Carus' , Dresden , Germany
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Kroschwald L, Suttorp M, Tauer JT, Zimmermann N, Günther C, Bauer A. Off‑target effect of imatinib and nilotinib on human vitamin D3 metabolism. Mol Med Rep 2017; 17:1382-1388. [PMID: 29115640 DOI: 10.3892/mmr.2017.7952] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 10/09/2017] [Indexed: 11/06/2022] Open
Abstract
Prolonged treatment with tyrosine kinase inhibitors (TKI) including imatinib (IMA) or nilotinib (NIL), induces severe disturbances of bone metabolism in patients with chronic myeloid leukaemia. As vitamin D3 (VD3) is involved in the complex cycle of bone remodelling, the present study investigated in vitro, the influence of IMA and NIL on VD3 metabolism i) in HaCaT cells and ii) in cultured outer root sheath keratinocytes (ORS‑KC) from hair follicles of IMA treated children. Cells were incubated in the presence of IMA or NIL. Concomitantly, specific inhibitors were applied to analyze the inhibition of the VD3 processing cytochrome P450 isoenzyme family by TKIs. In vitro, IMA and NIL significantly impaired the production of calcitriol in HaCaT and cultured ORS‑KC cells from hair follicles of IMA treated children. For NIL, this inhibitory effect demonstrated a 4‑fold increase. In HaCaT and ORS‑KC, application of specific CYP450 inhibitors revealed that CYP27B1 was impaired by IMA and NIL leading to an intracellular accumulation of calcidiol. However, during TKI treatment, KC of IMA treated children revealed no differences in calcidiol and calcitriol levels. In conclusion, IMA and NIL interfere with the vitamin D3 cascade due to their metabolism by CYP27B1.
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Affiliation(s)
- Lysann Kroschwald
- Department of Dermatology, University Hospital Carl Gustav Carus, TU Dresden, D‑01307 Dresden, Germany
| | - Meinolf Suttorp
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University Hospital Carl Gustav Carus, TU Dresden, D‑01307 Dresden, Germany
| | - Josephine Tabea Tauer
- Department of Pediatrics, Shriners Hospital for Children, Montréal, QC H4A 0A9, Canada
| | - Nick Zimmermann
- Department of Dermatology, University Hospital Carl Gustav Carus, TU Dresden, D‑01307 Dresden, Germany
| | - Claudia Günther
- Department of Dermatology, University Hospital Carl Gustav Carus, TU Dresden, D‑01307 Dresden, Germany
| | - Andrea Bauer
- Department of Dermatology, University Hospital Carl Gustav Carus, TU Dresden, D‑01307 Dresden, Germany
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Igwe IJ, Yang D, Merchant A, Merin N, Yaghmour G, Kelly K, Ramsingh G. The presence of Philadelphia chromosome does not confer poor prognosis in adult pre-B acute lymphoblastic leukaemia in the tyrosine kinase inhibitor era - a surveillance, epidemiology, and end results database analysis. Br J Haematol 2017; 179:618-626. [PMID: 29047122 DOI: 10.1111/bjh.14953] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/06/2017] [Indexed: 01/04/2023]
Abstract
The BCR-ABL1 fusion gene is caused by a translocation between chromosomes 9 and 22, resulting in an abnormal chromosome 22 (Philadelphia chromosome; Ph). Prior to the introduction of tyrosine kinase inhibitors (TKI), the presence of BCR-ABL1 conferred a poor prognosis in patients with acute lymphoblastic leukaemia (ALL). We compared the survival of Ph+ and Ph-ALL during the period when TKIs were universally available in the US for Ph+ALL, using a Surveillance, Epidemiology, and End Results (SEER) Database analysis. A total of 2694 patients with pre-B ALL (206 Ph+ALL; 2488 Ph-ALL) aged ≥18 years, who were diagnosed between 2010 and 2014, were identified in SEER registries. The median overall survival (OS) was 32 months in Ph+ALL (95% confidence interval [CI] 18 months-not reached) and 27 months (95% CI 24-30 months) in Ph-ALL (Log-rank test P-value 0·34). Older age was associated with worse prognosis in both Ph+ALL and Ph-ALL. Age-adjusted OS was inferior in Hispanics and African-Americans compared to non-Hispanic whites. Survival of pre-B ALL shows continued improvement with time. Philadelphia chromosome status does not confer poor prognosis in pre-B ALL in the TKI era: prognostic factors in pre-B ALL should be re-evaluated in the light of this finding.
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Affiliation(s)
- Igwe J Igwe
- Jane Anne Nohl Division of Hematology and Center for the Study of Blood Diseases, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Dongyun Yang
- Biostatistics Core, Norris Comprehensive Cancer Center, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Akil Merchant
- Jane Anne Nohl Division of Hematology and Center for the Study of Blood Diseases, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Noah Merin
- Blood and Marrow Transplant Program, Cedar-Sinai Medical Center, Los Angeles, CA, USA
| | - George Yaghmour
- Jane Anne Nohl Division of Hematology and Center for the Study of Blood Diseases, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Kevin Kelly
- Jane Anne Nohl Division of Hematology and Center for the Study of Blood Diseases, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Giridharan Ramsingh
- Jane Anne Nohl Division of Hematology and Center for the Study of Blood Diseases, Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
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Harttrampf AC, Lacroix L, Deloger M, Deschamps F, Puget S, Auger N, Vielh P, Varlet P, Balogh Z, Abbou S, Allorant A, Valteau-Couanet D, Sarnacki S, Gamiche-Rolland L, Meurice G, Minard-Colin V, Grill J, Brugieres L, Dufour C, Gaspar N, Michiels S, Vassal G, Soria JC, Geoerger B. Molecular Screening for Cancer Treatment Optimization (MOSCATO-01) in Pediatric Patients: A Single-Institutional Prospective Molecular Stratification Trial. Clin Cancer Res 2017; 23:6101-6112. [PMID: 28733441 DOI: 10.1158/1078-0432.ccr-17-0381] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/21/2017] [Accepted: 07/17/2017] [Indexed: 11/16/2022]
Abstract
Purpose: This single-institutional feasibility study prospectively characterized genomic alterations in recurrent or refractory solid tumors of pediatric patients to select a targeted therapy.Experimental Design: Following treatment failure, patients with signed consent and ages above 6 months, underwent tumor biopsy or surgical resection of primary or metastatic tumor site. These newly acquired samples were analyzed by comparative genomic hybridization array, next-generation sequencing for 75 target genes, whole-exome and RNA sequencing. Biological significance of the alterations and suggestion of most relevant targeted therapies available were discussed in a multidisciplinary tumor board.Results: From December 2012 to January 2016, 75 patients were included, 73 patients underwent 79 interventions, 56 of which were research biopsies with a low complication rate. All patients were pretreated, 37.0% had a brain tumor, and 63.0% had an extra-cranial solid tumor. Median tumor cell content was 70% (range, 0%-100%). Successful molecular analysis in 69 patients detected in 60.9% of patients an actionable alteration in various oncogenic pathways (42.4% with copy-number change, 33.3% with mutation, 2.1% with fusion), and change in diagnosis in three patients. Fourteen patients received 17 targeted therapies; two had received a matched treatment before inclusion.Conclusions: Research biopsies are feasible in advanced pediatric malignancies that exhibit a considerable amount of potentially actionable alterations. Genetic events affecting different cancer hallmarks and limited access to targeted agents within pediatric clinical trials remain the main obstacles that are addressed in our two subsequent precision medicine studies MAPPYACTS and AcSé-ESMART. Clin Cancer Res; 23(20); 6101-12. ©2017 AACR.
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Affiliation(s)
- Anne C Harttrampf
- Vectorology and Anticancer Therapies, UMR 8203, CNRS, Univ. Paris-Sud, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Ludovic Lacroix
- Laboratory of Translational Research and Biobank, AMMICA, INSERM US23/CNRS UMS3655, Department of Medical Biology and Pathology, Gustave Roussy, Villejuif, France.,Gustave Roussy, Medical Biology and Pathology Department, Villejuif, France
| | - Marc Deloger
- Gustave Roussy, Bioinformatics Platform, AMMICA, INSERM US23/CNRS UMS3655, Villejuif, France
| | | | - Stephanie Puget
- Necker Enfants Malades, Department of Pediatric Neurosurgery, University Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Nathalie Auger
- Gustave Roussy, Medical Biology and Pathology Department, Villejuif, France
| | - Philippe Vielh
- Laboratory of Translational Research and Biobank, AMMICA, INSERM US23/CNRS UMS3655, Department of Medical Biology and Pathology, Gustave Roussy, Villejuif, France.,Gustave Roussy, Medical Biology and Pathology Department, Villejuif, France
| | - Pascale Varlet
- Sainte-Anne Hospital, Department of Neuropathology, University Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Zsofia Balogh
- Laboratory of Translational Research and Biobank, AMMICA, INSERM US23/CNRS UMS3655, Department of Medical Biology and Pathology, Gustave Roussy, Villejuif, France
| | - Samuel Abbou
- Gustave Roussy, Department of Pediatric and Adolescent Oncology, Villejuif, France
| | - Adrien Allorant
- Gustave Roussy, Biostatistics and Epidemiology, Univers. Paris-Sud, Villejuif, France
| | | | - Sabine Sarnacki
- Necker Enfants Malades, Department of Pediatric Surgery, University Paris Descartes, Sorbonne Paris Cité, Paris, France
| | | | - Guillaume Meurice
- Gustave Roussy, Bioinformatics Platform, AMMICA, INSERM US23/CNRS UMS3655, Villejuif, France
| | | | - Jacques Grill
- Vectorology and Anticancer Therapies, UMR 8203, CNRS, Univ. Paris-Sud, Gustave Roussy, Université Paris-Saclay, Villejuif, France.,Gustave Roussy, Department of Pediatric and Adolescent Oncology, Villejuif, France
| | - Laurence Brugieres
- Gustave Roussy, Department of Pediatric and Adolescent Oncology, Villejuif, France
| | - Christelle Dufour
- Gustave Roussy, Department of Pediatric and Adolescent Oncology, Villejuif, France
| | - Nathalie Gaspar
- Gustave Roussy, Department of Pediatric and Adolescent Oncology, Villejuif, France
| | - Stefan Michiels
- Gustave Roussy, Biostatistics and Epidemiology, Univers. Paris-Sud, Villejuif, France
| | - Gilles Vassal
- Vectorology and Anticancer Therapies, UMR 8203, CNRS, Univ. Paris-Sud, Gustave Roussy, Université Paris-Saclay, Villejuif, France.,Gustave Roussy, Direction of Clinical Research, Univers. Paris-Sud, Villejuif, France
| | - Jean-Charles Soria
- Gustave Roussy, Department of Innovative Therapeutics and Early Trials, Univers. Paris-Sud, Villejuif, France
| | - Birgit Geoerger
- Vectorology and Anticancer Therapies, UMR 8203, CNRS, Univ. Paris-Sud, Gustave Roussy, Université Paris-Saclay, Villejuif, France. .,Gustave Roussy, Department of Pediatric and Adolescent Oncology, Villejuif, France
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Survival Pattern of Chronic Myeloid Leukemia in a Pediatric Population in the United States. J Pediatr Hematol Oncol 2017; 39:159-160. [PMID: 27782928 DOI: 10.1097/mph.0000000000000693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Appiah-Kubi K, Lan T, Wang Y, Qian H, Wu M, Yao X, Wu Y, Chen Y. Platelet-derived growth factor receptors (PDGFRs) fusion genes involvement in hematological malignancies. Crit Rev Oncol Hematol 2016; 109:20-34. [PMID: 28010895 DOI: 10.1016/j.critrevonc.2016.11.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 10/21/2016] [Accepted: 11/15/2016] [Indexed: 12/31/2022] Open
Abstract
PURPOSE To investigate oncogenic platelet-derived growth factor receptor(PDGFR) fusion genes involvement in hematological malignancies, the advances in the PDGFR fusion genes diagnosis and development of PDGFR fusions inhibitors. METHODS Literature search was done using terms "PDGFR and Fusion" or "PDGFR and Myeloid neoplasm" or 'PDGFR and Lymphoid neoplasm' or "PDGFR Fusion Diagnosis" or "PDGFR Fusion Targets" in databases including PubMed, ASCO.org, and Medscape. RESULTS Out of the 36 fusions detected, ETV6(TEL)-PDGFRB and FIP1L1-PDGFRA fusions were frequently detected, 33 are as a result of chromosomal translocation, FIP1L1-PDGFRA and EBF1-PDGFRB are the result of chromosomal deletion and CDK5RAP2- PDGFRΑ is the result of chromosomal insertion. Seven of the 34 rare fusions have detectable reciprocals. CONCLUSION RNA aptamers are promising therapeutic target of PDGFRs and diagnostic tools of PDGFRs fusion genes. Also, PDGFRs have variable prospective therapeutic strategies including small molecules, RNA aptamers, and interference therapeutics as well as development of adaptor protein Lnk mimetic drugs.
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Affiliation(s)
- Kwaku Appiah-Kubi
- Department of Physiology, School of Medicine, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, Jiangsu 212013, People's Republic of China; Department of Applied Biology, University for Development Studies, Navrongo, Ghana.
| | - Ting Lan
- Department of Physiology, School of Medicine, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Ying Wang
- Department of Physiology, School of Medicine, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Hai Qian
- Department of Physiology, School of Medicine, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Min Wu
- Department of Physiology, School of Medicine, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Xiaoyuan Yao
- Basic medical department, Changchun medical college, Changchun, Jilin 130013, People's Republic of China
| | - Yan Wu
- Department of Physiology, School of Medicine, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Yongchang Chen
- Department of Physiology, School of Medicine, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, Jiangsu 212013, People's Republic of China.
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Kesely KR, Pantaleo A, Turrini FM, Olupot-Olupot P, Low PS. Inhibition of an Erythrocyte Tyrosine Kinase with Imatinib Prevents Plasmodium falciparum Egress and Terminates Parasitemia. PLoS One 2016; 11:e0164895. [PMID: 27768734 PMCID: PMC5074466 DOI: 10.1371/journal.pone.0164895] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/03/2016] [Indexed: 11/18/2022] Open
Abstract
With half of the world's population at risk for malaria infection and with drug resistance on the rise, the search for mutation-resistant therapies has intensified. We report here a therapy for Plasmodium falciparum malaria that acts by inhibiting the phosphorylation of erythrocyte membrane band 3 by an erythrocyte tyrosine kinase. Because tyrosine phosphorylation of band 3 causes a destabilization of the erythrocyte membrane required for parasite egress, inhibition of the erythrocyte tyrosine kinase leads to parasite entrapment and termination of the infection. Moreover, because one of the kinase inhibitors to demonstrate antimalarial activity is imatinib, i.e. an FDA-approved drug authorized for use in children, translation of the therapy into the clinic will be facilitated. At a time when drug resistant strains of P. falciparum are emerging, a strategy that targets a host enzyme that cannot be mutated by the parasite should constitute a therapeutic mechanism that will retard evolution of resistance.
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Affiliation(s)
- Kristina R. Kesely
- Purdue Institute for Drug Discovery, Purdue University, West Lafayette, 47907, United States of America
- Purdue Department of Chemistry, Purdue University, West Lafayette, 47907, United States of America
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Francesco M. Turrini
- Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy
| | - Peter Olupot-Olupot
- Department of Paediatrics/Research Unit, Mbale Regional Referral Hospital, Mbale, Uganda
| | - Philip S. Low
- Purdue Institute for Drug Discovery, Purdue University, West Lafayette, 47907, United States of America
- Purdue Department of Chemistry, Purdue University, West Lafayette, 47907, United States of America
- * E-mail:
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50
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Phase I and Phase II Objective Response Rates are Correlated in Pediatric Cancer Trials: An Argument for Better Clinical Trial Efficiency. J Pediatr Hematol Oncol 2016; 38:360-6. [PMID: 27164535 PMCID: PMC4925289 DOI: 10.1097/mph.0000000000000583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Although many phase I trials report tumor response, formal analysis of efficacy is deferred to phase II. We reviewed paired phase I and II pediatric oncology trials to ascertain the relationship between phase I and II objective response rate (OR%). Single-agent phase I trials were paired with corresponding phase II trials (comparable study drug, dosing schedule, and population). Phase I trials without efficacy data or a matching phase II trial were excluded. OR% was tabulated for all trials, and phase II authors' subjective conclusions regarding efficacy were documented; 35 pairs of trials were analyzed. The correlation between phase I and II OR% was 0.93. Between phase II studies with a "positive" conclusion versus a "negative" one, there was a statistically significant difference in mean phase I OR% (32.0% vs. 4.5%, P<0.001). Thirteen phase II studies were undertaken despite phase I OR% of 0%; only 1 had a "positive" conclusion, and none exceeded OR% of 15%. OR% are highly correlated between phase I and II pediatric oncology trials. Although not a formal measure of drug efficacy, phase I OR% may provide an estimate of phase II response, inform phase II study design, and should be given greater consideration.
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