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Yuan P, Xue X, Qiu T, Ying J. MET alterations detection platforms and clinical implications in solid tumors: a comprehensive review of literature. Ther Adv Med Oncol 2024; 16:17588359231221910. [PMID: 38249331 PMCID: PMC10798113 DOI: 10.1177/17588359231221910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 12/04/2023] [Indexed: 01/23/2024] Open
Abstract
MET alterations, including MET exon 14 skipping variants, MET amplification, MET overexpression, and MET fusion, play pivotal roles in primary tumorigenesis and acquired resistance to targeted therapies, especially EGFR tyrosine kinase inhibitors. They represent important diagnostic, prognostic, and predictive biomarkers in many solid tumor types. However, the detection of MET alterations is challenging due to the complexity of MET alterations and the diversity of platform technologies. Therefore, techniques with high sensitivity, specificity, and reliable molecular detection accuracy are needed to overcome such hindrances and aid in biomarker-guided therapies. The current review emphasizes the role of MET alterations as oncogenic drivers in a variety of cancers and their involvement in the development of resistance to targeted therapies. Moreover, our review provides an overview of and recommendations on the selection of various cross-platform technologies for the detection of MET exon 14 skipping variants, MET amplification, MET overexpression, and MET fusion. Furthermore, challenges and hurdles underlying these common detection platforms are discussed.
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Affiliation(s)
- Pei Yuan
- Department of Pathology, State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuemin Xue
- Department of Pathology, State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tian Qiu
- Department of Pathology, State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianming Ying
- Department of Pathology, State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17, Panjiayuan Nanli, Chaoyang District, Beijing 100021, China
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2
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Fernandes M, Paget S, Kherrouche Z, Truong MJ, Vinchent A, Meneboo JP, Sebda S, Werkmeister E, Descarpentries C, Figeac M, Cortot AB, Tulasne D. Transforming properties of MET receptor exon 14 skipping can be recapitulated by loss of the CBL ubiquitin ligase binding site. FEBS Lett 2023; 597:2301-2315. [PMID: 37468447 DOI: 10.1002/1873-3468.14702] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/07/2023] [Accepted: 06/19/2023] [Indexed: 07/21/2023]
Abstract
MET is a receptor tyrosine kinase that is activated in many cancers through various mechanisms. MET exon 14 (Ex14) skipping occurs in 3% of nonsmall cell lung tumors. However, the contribution of the regulatory sites lost upon this skipping, which include a phosphorylated serine (S985) and a binding site for the E3 ubiquitin ligase CBL (Y1003), remains elusive. Sequencing of 2808 lung tumors revealed 71 mutations leading to MET exon 14 skipping and three mutations affecting Y1003 or S985. In addition, MET exon 14 skipping and MET Y1003F induced similar transcriptional programs, increased the activation of downstream signaling pathways, and increased cell mobility. Therefore, the MET Y1003F mutation is able to fully recapitulate responses induced by MET exon 14 skipping, suggesting that loss of the CBL binding site is the main contributor of cell transformation induced by MET Ex14 mutations.
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Affiliation(s)
- Marie Fernandes
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Univ. Lille, France
| | - Sonia Paget
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Univ. Lille, France
| | - Zoulika Kherrouche
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Univ. Lille, France
| | - Marie-José Truong
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Univ. Lille, France
| | - Audrey Vinchent
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Univ. Lille, France
| | - Jean-Pascal Meneboo
- Plateau de Génomique Fonctionnelle et Structurale, CHU Lille, Univ. Lille, France
| | - Shéhérazade Sebda
- Plateau de Génomique Fonctionnelle et Structurale, CHU Lille, Univ. Lille, France
| | - Elisabeth Werkmeister
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, US41 - UMS2014 - PLBS, Univ. Lille, France
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR9017 - CIIL - Center for Infection and Immunity of Lille, Univ. Lille, France
| | | | - Martin Figeac
- Plateau de Génomique Fonctionnelle et Structurale, CHU Lille, Univ. Lille, France
| | - Alexis B Cortot
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Univ. Lille, France
- Thoracic Oncology Department, CHU Lille, Univ. Lille, France
| | - David Tulasne
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Univ. Lille, France
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3
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Bironzo P, Pepe F, Russo G, Pisapia P, Gragnano G, Aquino G, Bessi S, Buglioni S, Bartoccini F, Ferrero G, Bresciani MA, Francia di Celle P, Sibona F, Giusti A, Movilia A, Farioli RM, Santoro A, Salemi D, Scarpino S, Galafate D, Tommasi S, Lacalamita R, Seminati D, Sajjadi E, Novello S, Pagni F, Troncone G, Malapelle U. An Italian Multicenter Perspective Harmonization Trial for the Assessment of MET Exon 14 Skipping Mutations in Standard Reference Samples. Diagnostics (Basel) 2023; 13:diagnostics13040629. [PMID: 36832117 PMCID: PMC9955861 DOI: 10.3390/diagnostics13040629] [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: 11/11/2022] [Revised: 01/24/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Lung cancer remains the leading cause of cancer deaths worldwide. International societies have promoted the molecular analysis of MET proto-oncogene, receptor tyrosine kinase (MET) exon 14 skipping for the clinical stratification of non-small cell lung cancer (NSCLC) patients. Different technical approaches are available to detect MET exon 14 skipping in routine practice. Here, the technical performance and reproducibility of testing strategies for MET exon 14 skipping carried out in various centers were evaluated. In this retrospective study, each institution received a set (n = 10) of a customized artificial formalin-fixed paraffin-embedded (FFPE) cell line (Custom METex14 skipping FFPE block) that harbored the MET exon 14 skipping mutation (Seracare Life Sciences, Milford, MA, USA), which was previously validated by the Predictive Molecular Pathology Laboratory at the University of Naples Federico II. Each participating institution managed the reference slides according to their internal routine workflow. MET exon 14 skipping was successfully detected by all participating institutions. Molecular analysis highlighted a median Cq cut off of 29.3 (ranging from 27.1 to 30.7) and 2514 (ranging from 160 to 7526) read counts for real-time polymerase chain reaction (RT-PCR) and NGS-based analyses, respectively. Artificial reference slides were a valid tool to harmonize technical workflows in the evaluation of MET exon 14 skipping molecular alterations in routine practice.
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Affiliation(s)
- Paolo Bironzo
- Department of Oncology, S. Luigi Gonzaga Hospital, University of Turin, 10043 Orbassano, Italy
| | - Francesco Pepe
- Department of Public Health, University Federico II of Naples, 80131 Naples, Italy
| | - Gianluca Russo
- Department of Public Health, University Federico II of Naples, 80131 Naples, Italy
| | - Pasquale Pisapia
- Department of Public Health, University Federico II of Naples, 80131 Naples, Italy
| | - Gianluca Gragnano
- Department of Public Health, University Federico II of Naples, 80131 Naples, Italy
| | - Gabriella Aquino
- Department of Pulmonary Oncology, AORN Dei Colli Monaldi, 80131 Naples, Italy
| | - Silvia Bessi
- Departmental Structure of Oncological Molecular Pathology, Oncological Department Azienda USL Toscana Centro, S. Stefano Hospital, 59100 Prato, Italy
| | - Simonetta Buglioni
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Federico Bartoccini
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | | | | | - Paola Francia di Celle
- Molecular Pathology, AOU Città della Salute e della Scienza di Torino-Presidio Ospedaliero Molinette, 10126 Turin, Italy
| | - Francesca Sibona
- Molecular Pathology, AOU Città della Salute e della Scienza di Torino-Presidio Ospedaliero Molinette, 10126 Turin, Italy
| | - Andrea Giusti
- ASL Toscana Nord Ovest, Pathology Unit, Centro Polispecialistico “Achille Sicari”, 54033 Carrara, Italy
| | - Alessandra Movilia
- Department of Pathology, ASST Ovest Milanese, Ospedale di Legnano, 20025 Legnano, Italy
| | | | - Alessandra Santoro
- Division of Hematology and Bone Marrow Transplantation, Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Domenico Salemi
- Division of Hematology and Bone Marrow Transplantation, Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Stefania Scarpino
- Pathology Unit, Department of Clinical and Molecular Medicine, St. Andrea University Hospital, University of Rome La Sapienza, 00189 Rome, Italy
| | - Dino Galafate
- Pathology Unit, Department of Clinical and Molecular Medicine, St. Andrea University Hospital, University of Rome La Sapienza, 00189 Rome, Italy
| | - Stefania Tommasi
- Molecular Genetics Laboratory, IRCCS Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
| | - Rosanna Lacalamita
- Molecular Genetics Laboratory, IRCCS Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
| | - Davide Seminati
- Department of Surgery and Translational Medicine, Section of Pathology, Università degli Studi di Mila-no-Bicocca, 20126 Milan, Italy
| | - Elham Sajjadi
- Department of Oncology and Hemato-Oncology, University of Milan, 20136 Milan, Italy
| | - Silvia Novello
- Department of Oncology, S. Luigi Gonzaga Hospital, University of Turin, 10043 Orbassano, Italy
| | - Fabio Pagni
- Department of Surgery and Translational Medicine, Section of Pathology, Università degli Studi di Mila-no-Bicocca, 20126 Milan, Italy
| | - Giancarlo Troncone
- Department of Public Health, University Federico II of Naples, 80131 Naples, Italy
| | - Umberto Malapelle
- Department of Public Health, University Federico II of Naples, 80131 Naples, Italy
- Correspondence:
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Rolfo C, Malapelle U, Russo A. Skipping or Not Skipping? That's the Question! An Algorithm to Classify Novel MET Exon 14 Variants in Non-Small-Cell Lung Cancer. JCO Precis Oncol 2023; 7:e2200674. [PMID: 36848608 DOI: 10.1200/po.22.00674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Affiliation(s)
- Christian Rolfo
- Center for Thoracic Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Umberto Malapelle
- Department of Public Health, University of Naples Federico II, Naples, Italy
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Brazel D, Zhang S, Nagasaka M. Spotlight on Tepotinib and Capmatinib for Non-Small Cell Lung Cancer with MET Exon 14 Skipping Mutation. LUNG CANCER (AUCKLAND, N.Z.) 2022; 13:33-45. [PMID: 35592355 PMCID: PMC9113513 DOI: 10.2147/lctt.s360574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/22/2022] [Indexed: 01/08/2023]
Abstract
Mesenchymal-epithelial transition (MET) receptor tyrosine kinase is overexpressed, amplified, or mutated in 1–20% of NSCLC. MET dysregulation is associated with a poor prognosis. Recently, development of targeted therapies against MET exon 14 mutations has demonstrated efficacy and tolerability in early trials. Here we focus on tepotinib and capmatinib in regards to molecular characteristics, early preclinical and clinical data, and the emerging role in future studies and clinical practice.
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Affiliation(s)
- Danielle Brazel
- Department of Medicine, University of California Irvine School of Medicine, Orange, CA, USA
| | - Shannon Zhang
- Department of Medicine, University of California Irvine School of Medicine, Orange, CA, USA
| | - Misako Nagasaka
- Department of Medicine, University of California Irvine School of Medicine, Orange, CA, USA.,Chao Family Comprehensive Cancer Center, Orange, CA, USA.,Department of Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
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Coleman N, Harbery A, Heuss S, Vivanco I, Popat S. Targeting un-MET needs in advanced non-small cell lung cancer. Lung Cancer 2021; 164:56-68. [PMID: 35033939 DOI: 10.1016/j.lungcan.2021.12.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 12/27/2021] [Indexed: 12/22/2022]
Abstract
Lung cancer classification has been radically transformed in recent years as genomic profiling has identified multiple novel therapeutic targets including MET exon 14 (METex14) alterations and MET amplification. Utilizing targeted therapies in patients with molecularly-defined NSCLC leads to remarkable objective response rates and improved progression-free survival. However, acquired resistance is inevitable. Several recent phase II trials have confirmed that METex14 NSCLC can be treated effectively with MET kinase inhibitors, such as crizotinib, capmatinib, tepotinib, and savolitinib. However, response rates for many MET TKIs are modest relative to the activity of targeted therapy in other oncogene-driven lung cancers, where ORRs are more consistently greater than 60%. In spite of significant gains in the field of MET inhibition in NSCLC, challenges remain: the landscape of resistance mechanisms to MET TKIs is not yet well characterized, and there may be intrinsic and acquired resistance mechanisms that require further characterization to enable increased MET TKI activity. In this review, we overview MET pathway dysregulation in lung cancer, methods of detection in the clinic, recent clinical trial data, and discuss current mechanisms of TKI resistance, exploring emerging strategies to overcome resistance.
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Affiliation(s)
- Niamh Coleman
- Lung Unit. The Royal Marsden Hospital, 203 Fulham Rd, Chelsea, London SW3 6JJ, UK; Institute of Cancer Research, 15 Cotswold Road, Sutton, London SM2 5NG, UK; University of Texas MD Anderson Cancer Center, Texas, USA.
| | - Alice Harbery
- Institute of Cancer Research, 15 Cotswold Road, Sutton, London SM2 5NG, UK
| | - Sara Heuss
- Institute of Cancer Research, 15 Cotswold Road, Sutton, London SM2 5NG, UK
| | - Igor Vivanco
- Institute of Pharmaceutical Sciences, School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - Sanjay Popat
- Lung Unit. The Royal Marsden Hospital, 203 Fulham Rd, Chelsea, London SW3 6JJ, UK; Institute of Cancer Research, 15 Cotswold Road, Sutton, London SM2 5NG, UK
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Terlecka P, Krawczyk P, Grenda A, Milanowski J. MET Gene Dysregulation as a Promising Therapeutic Target in Lung Cancer-A Review. J Pers Med 2021; 11:1370. [PMID: 34945842 PMCID: PMC8705301 DOI: 10.3390/jpm11121370] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/20/2021] [Accepted: 12/13/2021] [Indexed: 11/23/2022] Open
Abstract
Several molecular abnormalities in the MET gene have been identified, including overexpression, amplification, point mutations, and "skipping mutation" in exon 14. Even though deregulated MET signaling occurs rarely in non-small cell lung cancer (NSCLC), it possesses tumorigenic activity. Since the discovery of the significant role played by MET dysregulations in resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKI), many clinical trials have been focused on mechanisms underlying this acquired resistance. Therefore, new therapeutic strategies are being considered in the personalized therapy of NSCLC patients carrying MET abnormalities. First, MET kinase inhibitors (tepotinib and capmatinib) have been shown to be effective in the first and subsequent lines of treatment in NSCLC patients with "skipping mutations" in exon 14 of MET gene. In this article, the authors show the role of MET signaling pathway alterations and describe the results of clinical trials with MET inhibitors in NSCLC patients.
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Affiliation(s)
- Paulina Terlecka
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-090 Lublin, Poland; (P.K.); (A.G.); (J.M.)
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8
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Mehta A, Nathany S, Chopra A, Mattoo S, Kumar D, Panigrahi MK. Robust home brew fragment sizing assay for detection of MET exon 14 skipping mutation in non-small cell lung cancer patients in resource constrained community hospitals. J Pathol Transl Med 2021; 55:324-329. [PMID: 34465078 PMCID: PMC8476318 DOI: 10.4132/jptm.2021.07.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/15/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND A mutation/deletion involving donor or acceptor sites for exon 14 results in splicing out of exon 14 of the mesenchymal epithelial transition (MET) gene and is known as "MET exon 14 skipping" (ΔMET14). The two recent approvals with substantial objective responses and improved progression-free survival to MET inhibitors namely capmatinib and tepotinib necessitate the identification of this alteration upfront. We herein describe our experience of ΔMET14 detection by an mRNA-based assay using polymerase chain reaction followed by fragment sizing. METHODS This is a home brew assay which was developed with the concept that the transcripts from true ΔMET14 will be shorter by ~140 bases than their wild type counterparts. The cases which were called MET exon 14 skipping positive on next-generation sequencing (NGS) were subjected to this assay, along with 13 healthy controls in order to establish the validity for true negatives. RESULTS Thirteen cases of ΔMET14 mutation were detected on NGS using RNA-based sequencing. Considering NGS as a gold standard, the sizing assay using both gel and capillary electrophoresis that showed 100% specificity for both with concordance rates of 84.6% and 88.2% with NGS, respectively, were obtained. CONCLUSIONS Owing to the cost-effective nature and easy to use procedures, this assay will prove beneficial for small- and medium-sized laboratories where skilled technical personnel and NGS platforms are unavailable.
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Affiliation(s)
- Anurag Mehta
- Department of Laboratory Services, Molecular Diagnostics and Transfusion Medicine, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - Shrinidhi Nathany
- Section of Molecular Diagnostics, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - Aanchal Chopra
- Section of Molecular Diagnostics, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - Sakshi Mattoo
- Section of Molecular Diagnostics, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - Dushyant Kumar
- Section of Molecular Diagnostics, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - Manoj Kumar Panigrahi
- Section of Molecular Diagnostics, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
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Tan AC, Loh TJ, Kwang XL, Tan GS, Lim KH, Tan DSW. Novel Therapies for Metastatic Non-Small Cell Lung Cancer with MET Exon 14 Alterations: A Spotlight on Capmatinib. LUNG CANCER-TARGETS AND THERAPY 2021; 12:11-20. [PMID: 33776501 PMCID: PMC7987308 DOI: 10.2147/lctt.s263610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023]
Abstract
MET exon 14 (METex14) alterations are now an established therapeutically tractable target in non-small cell lung cancer (NSCLC). Recently reported trials of several MET tyrosine kinase inhibitors (TKI) in this patient population have demonstrated promising efficacy data in both the treatment naïve and pre-treated settings and have led to regulatory approvals. This review will focus on practical diagnostic considerations for METex14 alterations, the trial evidence for capmatinib in this molecular subset including dosing and toxicity management, and the future therapeutic landscape of METex14 altered NSCLC.
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Affiliation(s)
- Aaron C Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore
| | - Tracy J Loh
- Department of Pathology, Singapore General Hospital, Singapore, 169608, Singapore
| | - Xue Lin Kwang
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore
| | - Gek San Tan
- Department of Pathology, Singapore General Hospital, Singapore, 169608, Singapore
| | - Kiat Hon Lim
- Department of Pathology, Singapore General Hospital, Singapore, 169608, Singapore
| | - Daniel S W Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore
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10
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Seto T, Ohashi K, Sugawara S, Nishio M, Takeda M, Aoe K, Moizumi S, Nomura S, Tajima T, Hida T. Capmatinib in Japanese patients with MET exon 14 skipping-mutated or MET-amplified advanced NSCLC: GEOMETRY mono-1 study. Cancer Sci 2021; 112:1556-1566. [PMID: 33506571 PMCID: PMC8019204 DOI: 10.1111/cas.14826] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 01/17/2021] [Accepted: 01/24/2021] [Indexed: 12/14/2022] Open
Abstract
MET mutations leading to exon 14 skipping (METΔex14) are strong molecular drivers for non-small-cell lung cancer (NSCLC). Capmatinib is a highly potent, selective oral MET inhibitor that showed clinically meaningful efficacy and a manageable safety profile in a global phase II study (GEOMETRY mono-1, NCT02414139) in patients with advanced METΔex14-mutated/MET-amplified NSCLC. We report results of preplanned analyses of 45 Japanese patients according to MET status (METΔex14-mutated or MET-amplified) and line of therapy (first- [1L] or second-/third-line [2/3L]). The starting dose was 400 mg twice daily. The primary endpoint was the objective response rate (ORR) assessed by a blinded independent review committee. A key secondary endpoint was duration of response (DOR). Among METΔex14-mutated patients, in the 1L group, one patient achieved partial response (DOR of 4.24 months) and the other had stable disease. In the 2/3L group, the ORR was 36.4% (95% confidence interval [CI] 10.9%-69.2%), median DOR was not evaluable, and progression-free survival was 4.70 months. One patient (2/3L group) showed partial resolution of brain lesions per independent neuroradiologist review. In MET-amplified patients with a MET gene copy number of ≥10, the ORR was 100% (2/2 patients) in the 1L group and 45.5% (5/11 patients) in the 2/3L group, with DOR of 8.2 and 8.3 months, respectively. Common treatment-related adverse events among the 45 Japanese patients were blood creatinine increased (53.3%), nausea (35.6%), and oedema peripheral (31.1%); most were grade 1/2 severity. In conclusion, capmatinib was effective and well tolerated by Japanese patients with METΔex14/MET-amplified NSCLC, consistent with the overall population.
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Affiliation(s)
- Takashi Seto
- Department of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Kadoaki Ohashi
- Department of Respiratory Medicine, Okayama University Hospital, Okayama, Japan
| | | | - Makoto Nishio
- Thoracic Center, Cancer Institute Hospital of JFCR, Tokyo, Japan
| | - Masayuki Takeda
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Keisuke Aoe
- Department of Medical Oncology, National Hospital Organization Yamaguchi-Ube Medical Center, Yamaguchi, Japan
| | - Sanae Moizumi
- Development Division, Novartis Pharma K.K., Tokyo, Japan
| | - Satoshi Nomura
- Development Division, Novartis Pharma K.K., Tokyo, Japan
| | - Takeshi Tajima
- Development Division, Novartis Pharma K.K., Tokyo, Japan
| | - Toyoaki Hida
- Department of Thoracic Oncology, Aichi Cancer Center Hospital, Aichi, Japan
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