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Man X, Sun X, Chen C, Xiang Y, Zhang J, Yang L. The current landscape, advancements, and prospects in the treatment of patients with EGFR exon 20 insertion mutations warrant scientific elucidation. Front Oncol 2024; 14:1367204. [PMID: 38919530 PMCID: PMC11196869 DOI: 10.3389/fonc.2024.1367204] [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: 01/08/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024] Open
Abstract
Epidermal growth factor receptor (EGFR) exon 20 insertion (ex20ins) mutations are the third most prevalent mutation in non-small cell lung cancer (NSCLC), following the 19del and L858R mutations. The unique nature of the EGFR ex20ins mutation poses challenges for the effectiveness of first- and second-generation EGFR tyrosine kinase inhibitors (TKIs). As a result, chemotherapy remains the primary and more effective treatment approach. However, with advancements in time and technology, numerous experimental studies have revealed the potential of novel drugs and therapies to have stronger inhibitory effects on EGFR ex20ins mutations. In this comprehensive review, we provide an overview of the current treatment landscape, recent advancements, and the prospects for patients with advanced NSCLC characterized by EGFR ex20ins mutations.
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Affiliation(s)
| | | | | | | | | | - Lei Yang
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
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2
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Favorito V, Ricciotti I, De Giglio A, Fabbri L, Seminerio R, Di Federico A, Gariazzo E, Costabile S, Metro G. Non-small cell lung cancer: an update on emerging EGFR-targeted therapies. Expert Opin Emerg Drugs 2024; 29:139-154. [PMID: 38572595 DOI: 10.1080/14728214.2024.2331139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/12/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Current research in EGFR-mutated NSCLC focuses on the management of drug resistance and uncommon mutations, as well as on the opportunity to extend targeted therapies' field of action to earlier stages of disease. AREAS COVERED We conducted a review analyzing literature from the PubMed database with the aim to describe the current state of art in the management of EGFR-mutated NSCLC, but also to explore new strategies under investigation. To this purpose, we collected recruiting phase II-III trials registered on Clinicaltrials.govand conducted on EGFR-mutated NSCLC both in early and advanced stage. EXPERT OPINION With this review, we want to provide an exhaustive overview of current and new potential treatments in EGFR-mutated NSCLC, with emphasis on the most promising newly investigated strategies, such as association therapies in the first-line setting involving EGFR-TKIs and chemotherapy (FLAURA2) or drugs targeting different driver pathways (MARIPOSA). We also aimed at unearthing challenges to achieve in this field, specifically the need to fully exploit already available compounds while developing new ones, the management of new emerging toxicities and the necessity to improve our biological understanding of the disease to design trials with a solid scientific rationale and to allow treatment personalization such in case of uncommon mutations.
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Affiliation(s)
- Valentina Favorito
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Ilaria Ricciotti
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Andrea De Giglio
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Laura Fabbri
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Renata Seminerio
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Alessandro Di Federico
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Eleonora Gariazzo
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Silvia Costabile
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Giulio Metro
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
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3
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Hu M, Zhong C, Wang J, Chen J, Zhou T. Current status and breakthroughs in treating advanced non-small cell lung cancer with EGFR exon 20 insertion mutations. Front Immunol 2024; 15:1399975. [PMID: 38774882 PMCID: PMC11106363 DOI: 10.3389/fimmu.2024.1399975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/23/2024] [Indexed: 05/24/2024] Open
Abstract
Recently, targeted therapy and immunotherapy have emerged as effective treatment options for non-small cell lung cancer (NSCLC). This progress has been facilitated by the rapid development of diagnostic and therapeutic technologies and the continuous research and development of new drugs, leading to a new era in precision medicine for NSCLC. This is a breakthrough for patients with common mutations in the human epidermal growth factor receptor (EGFR) gene in NSCLC. Consequently, the use of targeted drugs has significantly improved survival. Nevertheless, certain rare genetic mutations are referred to as EGFR exon 20 insertion (ex20ins) mutations, which differ in structure from conventional EGFR gene mutations, namely, exon 19 deletion mutations (19-Del) and exon 21 point mutations. Owing to their distinct structural characteristics, patients harboring these EGFR ex20ins mutations are unresponsive to traditional tyrosine kinase inhibitor (TKI) therapy. This particular group of patients did not fall within the scope of their applicability. However, the activating A763_Y764insFQEA mutation elicits a more pronounced response than mutations in the near and far regions of the C-helix immediately following it and should, therefore, be treated differently. Currently, there is a lack of effective treatments for EGFR ex20ins mutations NSCLC. The efficacy of chemotherapy has been relatively favorable, whereas the effectiveness of immunotherapy remains ambiguous owing to inadequate clinical data. In addition, the efficacy of the first- and second-generation targeted drugs remains limited. However, third-generation and novel targeted drugs have proven to be effective. Although novel EGFR-TKIs are expected to treat EGFR ex20ins mutations in patients with NSCLC, they face many challenges. The main focus of this review is on emerging therapies that target NSCLC with EGFR ex20ins and highlight major ongoing clinical trials while also providing an overview of the associated challenges and research advancements in this area.
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Affiliation(s)
- Meng Hu
- Department of Oncology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Congying Zhong
- Department of Oncology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Jiabing Wang
- Department of Oncology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - JinQin Chen
- Department of Oncology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Tao Zhou
- Department of Chinese and Western Medicine Oncology, Jiangxi Provincial People’s Hospital, Nanchang, China
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4
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Zhang MS, Yeh YC, Huang HN, Lin LW, Huang YL, Wang LC, Yao LJ, Hung TC, Tseng YF, Lee YH, Liao WY, Shih JY, Hsieh MS. The association of EGFR amplification with aberrant exon 20 insertion report using the cobas EGFR Mutation Test v2. PLoS One 2024; 19:e0301120. [PMID: 38687753 PMCID: PMC11060574 DOI: 10.1371/journal.pone.0301120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/11/2024] [Indexed: 05/02/2024] Open
Abstract
Determining the exact type of epidermal growth factor receptor (EGFR) exon 20 insertion (ex20ins) mutation in lung cancer has become important. We found that not all ex20ins mutations reported by cobas EGFR test v2 could be validated by Sanger sequencing even using surgical specimens with high tumor contents. This study aimed to validate the ex20ins results reported by the cobas test and to determine whether there were clinicopathological factors associated with aberrant cobas ex20ins report. In total, 123 cobas-reported cases with ex20ins were retrospectively collected and validated by Sanger sequencing and Idylla assay. Clinicopathological features between ex20ins cobas+/Sanger+ group (n = 71) and cobas+/Sanger- group (n = 52) were compared. The Idylla assay detected ex20ins in 82.6% of cobas+/Sanger+ cases but only in 4.9% of cobas+/Sanger- cases. The cobas+/Sanger- group was significantly associated with higher tumor contents, poorly differentiated patterns, tumor necrosis, and a lower internal control cycle threshold value reported by the Idylla which suggesting the presence of increased EGFR gene copy numbers. EGFR fluorescence in situ hybridization (FISH) revealed the majority of cobas+/Sanger- group had EGFR high copy number gain (16%) or amplification (76%) according to the Colorado criteria. Among cases reported to have concomitant classic EGFR and ex20ins mutations by the cobas, the classic EGFR mutations were all detected by Sanger sequencing and Idylla, while the ex20ins mutations were undetected by Sanger sequencing (0%) or rarely reported by Idylla assay (3%). FISH revealed high EGFR copy number gain (17.9%) and amplification (79.5%) in cases reported having concomitant classic EGFR and ex20ins mutations by the cobas. This study demonstrated an unusually high frequency of EGFR amplification in cases with aberrant cobas ex20ins report which could not be validated by Sanger sequencing or Idylla assay. Ex20ins reported by the cobas test should be validated using other methods especially those reported having concomitant ex20ins and classic EGFR mutations.
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Affiliation(s)
- Man-San Zhang
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Chen Yeh
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsien-Neng Huang
- Department of Pathology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
- Graduate Institute of Pathology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Long-Wei Lin
- Department of Pathology, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
| | - Yen-Lin Huang
- Department of Pathology, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Lei-Chi Wang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Lai-Jin Yao
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Tze-Chun Hung
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Fen Tseng
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Hsuan Lee
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Yu Liao
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jin-Yuan Shih
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Min-Shu Hsieh
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
- Graduate Institute of Pathology, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Pathology, National Taiwan University Cancer Center, Taipei, Taiwan
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Moulson R, Law J, Sacher A, Liu G, Shepherd FA, Bradbury P, Eng L, Iczkovitz S, Abbie E, Elia-Pacitti J, Ewara EM, Mokriak V, Weiss J, Pettengell C, Leighl NB. Real-World Outcomes of Patients with Advanced Epidermal Growth Factor Receptor-Mutated Non-Small Cell Lung Cancer in Canada Using Data Extracted by Large Language Model-Based Artificial Intelligence. Curr Oncol 2024; 31:1947-1960. [PMID: 38668049 PMCID: PMC11049467 DOI: 10.3390/curroncol31040146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/09/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
Real-world evidence for patients with advanced EGFR-mutated non-small cell lung cancer (NSCLC) in Canada is limited. This study's objective was to use previously validated DARWENTM artificial intelligence (AI) to extract data from electronic heath records of patients with non-squamous NSCLC at University Health Network (UHN) to describe EGFR mutation prevalence, treatment patterns, and outcomes. Of 2154 patients with NSCLC, 613 had advanced disease. Of these, 136 (22%) had common sensitizing EGFR mutations (cEGFRm; ex19del, L858R), 8 (1%) had exon 20 insertions (ex20ins), and 338 (55%) had EGFR wild type. One-year overall survival (OS) (95% CI) for patients with cEGFRm, ex20ins, and EGFR wild type tumours was 88% (83, 94), 100% (100, 100), and 59% (53, 65), respectively. In total, 38% patients with ex20ins received experimental ex20ins targeting treatment as their first-line therapy. A total of 57 patients (36%) with cEGFRm received osimertinib as their first-line treatment, and 61 (39%) received it as their second-line treatment. One-year OS (95% CI) following the discontinuation of osimertinib was 35% (17, 75) post-first-line and 20% (9, 44) post-second-line. In this real-world AI-generated dataset, survival post-osimertinib was poor in patients with cEGFR mutations. Patients with ex20ins in this cohort had improved outcomes, possibly due to ex20ins targeting treatment, highlighting the need for more effective treatments for patients with advanced EGFRm NSCLC.
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Affiliation(s)
- Ruth Moulson
- Pentavere, 460 College Street, Toronto, ON M6G 1A1, Canada; (R.M.)
| | - Jennifer Law
- Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Adrian Sacher
- Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Geoffrey Liu
- Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Frances A. Shepherd
- Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Penelope Bradbury
- Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Lawson Eng
- Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | | | | | | | | | | | - Jessica Weiss
- Pentavere, 460 College Street, Toronto, ON M6G 1A1, Canada; (R.M.)
| | | | - Natasha B. Leighl
- Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
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Liu J, Xiang Y, Fang T, Zeng L, Sun A, Lin Y, Lu K. Advances in the Diagnosis and Treatment of Advanced Non-Small-Cell Lung Cancer With EGFR Exon 20 Insertion Mutation. Clin Lung Cancer 2024; 25:100-108. [PMID: 38172024 DOI: 10.1016/j.cllc.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 01/05/2024]
Abstract
The discovery of epidermal growth factor receptor (EGFR) mutations has greatly changed the clinical outlook for patients with advanced non-small-cell lung cancer (NSCLC). Unlike the most common EGFR mutations, such as exon 19 deletion (del19) and exon 21 L858R point mutation, EGFR exon 20 insertion mutation (EGFR ex20ins) is a rare mutation of EGFR. Due to its structural specificity, it exhibits primary resistance to traditional epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs), leading to poor overall survival prognosis for patients. In recent years, there has been continuous progress in the development of new drugs targeting EGFR ex20ins, bringing new hope for the treatment of this patient population. In this regard, we conducted a systematic review of the molecular characteristics, diagnostic advances, and treatment status of EGFR ex20ins. We summarized the latest data on relevant drug development and clinical research, aiming to provide reference for clinical diagnosis, treatment, and drug development.
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Affiliation(s)
- Jingwen Liu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yan Xiang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tingwen Fang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lulin Zeng
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ao Sun
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yixiang Lin
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Kaihua Lu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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7
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Han H, Zhang X, Liu X, Zhao J, Zhang J, Zhang J, Zhu H, Jiao S, Tang H. First report of furmonertinib as a first-line treatment in advanced lung adenocarcinoma patients harboring EGFR exon 20 insertion mutations after the kinase domain αC-helix: Two case reports and a literature review. Medicine (Baltimore) 2023; 102:e36667. [PMID: 38206746 PMCID: PMC10754557 DOI: 10.1097/md.0000000000036667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/23/2023] [Indexed: 01/13/2024] Open
Abstract
RATIONALE Many studies have shown that first- and second-generation epidermal growth factor receptor tyrosine kinase inhibitors are less effective in patients with epidermal growth factor receptor (EGFR) exon 20 insertion (ex20ins) mutations. The efficacy of third-generation epidermal growth factor receptor tyrosine kinase inhibitors is still under investigation. Although new targeted tyrosine kinase inhibitors and monoclonal antibody-based agents have made significant advances in the treatment of epidermal growth factor receptor exon 20 insertion (EGFR ex20ins) mutation, the efficacy of these novel agents is not quite satisfactory. Platinum- and pemetrexed-based chemotherapy remains the standard first-line treatment for patients harboring EGFR ex20ins mutation. PATIENT CONCERNS We report for the first time 2 Chinese patients diagnosed with advanced lung adenocarcinoma with EGFR ex20ins mutations after analysis of the αC-helix sequence by next-generation sequencing. Both patients were treated with furmonertinib as the first-line therapy. INTERVENTIONS The first case included a 38-year-old female who had an EGFR ex20ins mutation (p.S768_D770dupSVD). After 1 month of treatment with furmonertinib, her symptoms of pain and cough were significantly alleviated. She achieved a partial response according to response evaluation criteria in solid tumors.[1] The final progression-free survival was 8.13 months. The second case included a 40-year-old male who had an EGFR ex20ins mutation (p.N771_P772insVal). He had a good response to furmonertinib and exhibited stable disease according to response evaluation criteria in solid tumors with a progression-free survival of 10.90 months. OUTCOMES Both patients experienced significant improvement in symptoms and prolonged survival after furmonertinib was used as first-line treatment. Side effects were limited but manageable. CONCLUSION The present study indicates that furmonertinib may be a first-line treatment option for patients with non-small cell lung cancer harboring EGFR ex20ins mutation.
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Affiliation(s)
- Huan Han
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Xiao Zhang
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Xiao Liu
- Department of Radiotherapy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Jiuzhou Zhao
- Department of Pathology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Jianbo Zhang
- Department of Pathology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Jianwei Zhang
- Department of Medical Iconography, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Hui Zhu
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Shuyue Jiao
- Department of Respiratory Medicine, Luohe Central Hospital, Luohe, China
| | - Hong Tang
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
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8
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Pan B, Liang J, Shi H, Rao K, Guo W, Zhan C. Epidemiological characteristics and therapeutic advances of EGFR exon 20 insertion mutations in non-small cell lung cancer. Thorac Cancer 2023; 14:3247-3258. [PMID: 37795778 PMCID: PMC10665789 DOI: 10.1111/1759-7714.15127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023] Open
Abstract
The third most prevalent type of epidermal growth factor receptor (EGFR) mutation, EGFR exon 20 insertions (EGFRex20ins), involves 2%-12% of all cases of EGFR-positive non-small cell lung cancer (NSCLC). Approximately 90% of the mutations occur within the loop structure region, and the most frequently reported subtypes are A767_V769dup and S768_D770dup, which together account for almost 50% of instances. Apart from the unique subtype of A763_Y764insFQEA, NSCLCs with EGFRex20ins are resistant to approved EGFR tyrosine kinase inhibitors (TKIs) and are also insensitive to chemotherapy or immunotherapy. A new modality of treatment for NSCLC patients with EGFRx20ins has been established with the approval of mobocertinib and amivantamab. There are also numerous novel targeted treatments for NSCLC with EGFRex20ins in development, which are anticipated to improve this patient population's survival even further. This review provides a reference for the clinical management of these patients by summarizing the most recent epidemiological, and clinicopathological characteristics, diagnostic techniques, and therapeutic advances of EGFRex20ins in NSCLC.
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Affiliation(s)
- Binyang Pan
- Department of Thoracic Surgery, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Jiaqi Liang
- Department of Thoracic Surgery, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Haochun Shi
- Department of Thoracic Surgery, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Kungeng Rao
- Department of Thoracic Surgery, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Weigang Guo
- Department of Thoracic Surgery, Zhongshan HospitalFudan UniversityShanghaiChina
- Department of Thoracic Surgery and UrologyShigatse People's HospitalShigatseChina
| | - Cheng Zhan
- Department of Thoracic Surgery, Zhongshan HospitalFudan UniversityShanghaiChina
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9
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Zwierenga F, van Veggel BAMH, van den Berg A, Groen HJM, Zhang L, Groves MR, Kok K, Smit EF, Hiltermann TJN, de Langen AJ, van der Wekken AJ. A comprehensive overview of the heterogeneity of EGFR exon 20 variants in NSCLC and (pre)clinical activity to currently available treatments. Cancer Treat Rev 2023; 120:102628. [PMID: 37797348 DOI: 10.1016/j.ctrv.2023.102628] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023]
Abstract
Activating EGFR mutations are commonly observed in non-small cell lung cancer (NSCLC). About 4-10 % of all activating epidermal growth factor receptor (EGFR) mutations are heterogenous in-frame deletion and/or insertion mutations clustering within exon 20 (EGFRex20+). NSCLC patients with EGFRex20+ mutations are treated as a single disease entity, irrespective of the type and location of the mutation. Here, we provide a comprehensive assessment of the literature reporting both in vitro and clinical drug sensitivity across different EGFRex20+ mutations. The activating A763_Y764insFQEA mutation has a better tumor response in comparison with mutations in the near- and far regions directly following the C-helix and should therefore be treated differently. For other EGFRex20+ mutations marked differences in treatment responses have been reported indicating the need for a classification beyond the exon-based classification. A further classification can be achieved using a structure-function modeling approach and experimental data using patient-derived cell lines. The detailed overview of TKI responses for each EGFRex20+ mutation can assist treating physicians to select the most optimal drug for individual NSCLC patients.
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Affiliation(s)
- Fenneke Zwierenga
- Department of Pulmonary Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Bianca A M H van Veggel
- Department of Thoracic Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Anke van den Berg
- Department of Pathology and Molecular Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Harry J M Groen
- Department of Pulmonary Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Lili Zhang
- Structural Biology in Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Matthew R Groves
- Structural Biology in Drug Design, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - K Kok
- Department of Genetics, University of Groningen, University Medical Center Groningen, The Netherlands
| | - E F Smit
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - T Jeroen N Hiltermann
- Department of Pulmonary Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Adrianus J de Langen
- Department of Thoracic Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Anthonie J van der Wekken
- Department of Pulmonary Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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10
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Ou SHI, Lin HM, Hong JL, Yin Y, Jin S, Lin J, Mehta M, Nguyen D, Neal JW. Real-World Response and Outcomes in Patients With NSCLC With EGFR Exon 20 Insertion Mutations. JTO Clin Res Rep 2023; 4:100558. [PMID: 37744306 PMCID: PMC10514080 DOI: 10.1016/j.jtocrr.2023.100558] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/31/2023] [Accepted: 08/09/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction This study describes treatment patterns and outcomes in patients with NSCLC with EGFR exon 20 insertions (EGFRex20ins) in the United States. Methods The Flatiron Health electronic health record database was used to select three cohorts among patients diagnosed with NSCLC with EGFRex20ins (January 1, 2011-February 29, 2020): (1) first-line (1L) or patients receiving 1L therapy after documented EGFRex20ins; (2) second or later-line (≥2L) or patients receiving ≥2L therapy after documented EGFRex20ins; and (3) ≥2L postplatinum trial-aligned, or ≥2L patients previously treated with platinum chemotherapy whose baseline characteristics aligned with key eligibility criteria (initiating new treatment after documented EGFRex20ins and ≥1 previous treatment excluding mobocertinib or amivantamab) of the mobocertinib trial NCT02716116. Real-world end points were confirmed overall response rate, overall survival, and progression-free survival. Results Of 237 patients with EGFRex20ins-mutated NSCLC, 129 and 114 patients were included in the 1L and ≥2L cohorts, respectively. In 1L patients, platinum chemotherapy plus nonplatinum chemotherapy (31.0%) and EGFR tyrosine kinase inhibitors (28.7%) were the most common regimens. In ≥2L patients, immuno-oncology monotherapy (28.1%) and EGFR tyrosine kinase inhibitors (17.5%) were the most common index treatments. For any 1L, ≥2L, and ≥2L postplatinum trial-aligned patients, the confirmed overall response rate was 18.6%, 9.6%, and 14.0%, respectively; the median overall survival was 17.0, 13.6, and 11.5 months; the median progression-free survival was 5.2, 3.7, and 3.3 months, respectively. Conclusions The outcomes for patients with NSCLC with EGFRex20ins were poor. This real-world study provides a benchmark on treatment outcomes in this patient population and highlights the unmet need for improved therapeutic options.
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Affiliation(s)
- Sai-Hong Ignatius Ou
- Division of Hematology-Medical Oncology, Department of Internal Medicine, Chao Family Comprehensive Cancer Center, University of California Irvine School of Medicine, Orange, California
| | - Huamao M. Lin
- Global Evidence and Outcomes Oncology, Takeda Development Center Americas, Inc., Lexington, Massachusetts
| | - Jin-Liern Hong
- Global Evidence and Outcomes Oncology, Takeda Development Center Americas, Inc., Lexington, Massachusetts
| | - Yu Yin
- Oncology Statistics, Takeda Pharmaceuticals United States, Inc., Lexington, Massachusetts
| | - Shu Jin
- Clinical Science, Oncology, Takeda Development Center Americas, Inc., Lexington, Massachusetts
| | - Jianchang Lin
- Oncology Statistics, Takeda Pharmaceuticals United States, Inc., Lexington, Massachusetts
| | - Minal Mehta
- Clinical Science, Oncology, Takeda Development Center Americas, Inc., Lexington, Massachusetts
| | - Danny Nguyen
- Oncology and Hematology, City of Hope National Medical Center, Duarte, California
| | - Joel W. Neal
- Division of Oncology, Department of Medicine, Stanford Cancer Institute, Stanford University, Stanford, California
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Reyes A, Pharaon R, Mohanty A, Massarelli E. Arising Novel Agents in Lung Cancer: Are Bispecifics and ADCs the New Paradigm? Cancers (Basel) 2023; 15:3162. [PMID: 37370772 PMCID: PMC10296730 DOI: 10.3390/cancers15123162] [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: 05/18/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Lung cancer is one of the most common cancers with the highest mortality. Non-small cell lung cancer (NSCLC) contributes to around 85% of lung cancer diagnoses (vs. 15% for small cell lung cancer). The treatment of NSCLC has vastly changed in the last two decades since the development of immunotherapy and targeted therapy against driver mutations. As is the nature of malignancy, cancer cells have acquired resistance to these treatments prompting an investigation into novel treatments and new targets. Bispecific antibodies, capable of targeting multiple substrates at once, and antibody-drug conjugates that can preferentially deliver chemotherapy to tumor cells are examples of this innovation. From our initial evaluation, both treatment modalities appear promising.
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Affiliation(s)
| | | | | | - Erminia Massarelli
- Department of Medical Oncology & Therapeutics Research, City of Hope National Medical Center, Duarte, CA 910102, USA; (A.R.); (R.P.); (A.M.)
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12
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Ou SHI, Lin HM, Hong JL, Yin Y, Jin S, Lin J, Mehta M, Zhang P, Nguyen D, Neal JW. Comparative Effectiveness of Mobocertinib and Standard of Care in Patients with NSCLC with EGFR Exon 20 Insertion Mutations: An Indirect Comparison. Lung Cancer 2023; 179:107186. [PMID: 37075617 DOI: 10.1016/j.lungcan.2023.107186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/27/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023]
Abstract
INTRODUCTION Mobocertinib is a novel, first-in-class, irreversible, oral epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) designed to selectively target in-frame EGFR exon 20 insertions (ex20ins). Comparative effectiveness data for mobocertinib versus real-world treatments are lacking in this rare population. This study compared data for mobocertinib reported in a Phase I/II single-arm clinical trial with an external control group consisting of patients who received available treatment in the real-world setting in the United States (US). MATERIALS AND METHODS The mobocertinib group included platinum-pretreated patients with advanced EGFR ex20ins non-small cell lung cancer (NSCLC) receiving mobocertinib 160 mg QD in an ongoing, single-arm, phase 1/2 clinical trial (NCT02716116; n = 114). The real-world data (RWD) group included platinum-pretreated patients with advanced EGFR ex20ins-mutant NSCLC from the Flatiron Health database (n = 50). Inverse probability treatment weighting based on the propensity score method controlled for potential confounding between groups. Confirmed overall response rate (cORR), progression-free survival (PFS), and overall survival (OS) were compared between groups. RESULTS After weighting, baseline characteristics were balanced. Patients in the RWD group received EGFR TKI (20 %), immuno-oncology therapy (40 %), or any regimens containing chemotherapy (40 %) in the second- or later-line setting. In the mobocertinib and RWD groups, respectively, cORR was 35.1 % and 11.9 % (odds ratio: 3.75 [95 % confidence interval (CI): 2.05, 6.89]); median PFS was 7.3 and 3.3 months (hazard ratio [HR]: 0.57 [95 % CI: 0.36, 0.90]); and median OS was 24.0 and 12.4 months (HR: 0.53 [95 % CI: 0.33, 0.83]) after weighting. DISCUSSION Mobocertinib showed substantially improved outcomes versus an external control group using available therapies in platinum-pretreated patients with EGFR ex20ins-mutant NSCLC. In the absence of comparative evidence from randomized trials, these findings help elucidate potential benefits of mobocertinib in this rare population.
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13
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Mountzios G, Planchard D, Metro G, Tsiouda D, Prelaj A, Lampaki S, Shalata W, Riudavets M, Christopoulos P, Girard N, Albarrán-Artahona V, Garcia Campelo R, Samitas K, Banna GL, Boukovinas I, Agbarya A, Koumarianou A, Perdikouri EI, Kosmidis P, Linardou H, Mauri D, Mavroudis D, Athanasiadis I, Kalofonos H, Xenidis N, Korantzis I, Ardavanis A, Rallis G, Bottiglieri A, Efthymiadis K, Oikonomopoulos G, Kokkalis A, Saloustros E, Tsoukalas N, Bartzi D, Economopoulou P, Psyrri A, Reck M, Lo Russo G. Molecular Epidemiology and Treatment Patterns of Patients With EGFR Exon 20-Mutant NSCLC in the Precision Oncology Era: The European EXOTIC Registry. JTO Clin Res Rep 2022; 4:100433. [PMID: 36793384 PMCID: PMC9923191 DOI: 10.1016/j.jtocrr.2022.100433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 11/01/2022] [Accepted: 11/05/2022] [Indexed: 11/21/2022] Open
Abstract
Introduction Real-world evidence regarding molecular epidemiology and management patterns of patients with EGFR exon-20 mutated, advanced NSCLC outside the context of clinical trials is lacking. Methods We created a European registry for patients with advanced EGFR exon 20-mutant NSCLC diagnosed from January 2019 to December 2021. Patients enrolled in clinical trials were excluded. Clinicopathologic and molecular epidemiology data were collected, and treatment patterns were recorded. Clinical end points according to treatment assignment were assessed using Kaplan-Meier curves and Cox regression models. Results Data on 175 patients from 33 centers across nine countries were included in the final analysis. Median age was 64.0 (range: 29.7-87.8) years. Main features included female sex (56.3%), never or past smokers (76.0%), adenocarcinoma (95.4%), and tropism for bone (47.4%) and brain (32.0%) metastases. Mean programmed death-ligand 1 tumor proportional score was 15.8% (range: 0%-95%) and mean tumor mutational burden was 7.06 (range: 0-18.8) mutations per megabase. Exon 20 was detected in the tissue (90.7%), plasma (8.7%), or both (0.6%), using mostly targeted next-generation sequencing (64.0%) or polymerase chain reaction (26.0%). Mutations were mainly insertions (59.3%), followed by duplications (28.1%), deletions-insertions (7.7%), and the T790M (4.5%). Insertions and duplications were located mainly in the near loop (codons 767-771, 83.1%) and the far loop (codons 771-775, 13%) and only in 3.9% within the C helix (codons 761-766). Main co-alterations included mutations in TP53 (61.8%) and MET amplifications (9.4%). Treatment on mutation identification included chemotherapy (CT) (33.8%), CT-immunotherapy (IO) (18.2%), osimertinib (22.1%), poziotinib (9.1%), mobocertinib (6.5%), mono-IO (3.9%), and amivantamab (1.3%). Disease control rates were 66.2% with CT plus or minus IO, 55.8% with osimertinib, 64.8% with poziotinib, and 76.9% with mobocertinib. Corresponding median overall survival was 19.7, 15.9, 9.2, and 22.4 months, respectively. In multivariate analysis, type of treatment (new targeted agents versus CT ± IO) affected progression-free survival (p = 0.051) and overall survival (p = 0.03). Conclusions EXOTIC represents the largest academic real-world evidence data set on EGFR exon 20-mutant NSCLC in Europe. Indirectly compared, treatment with new exon 20-targeting agents is likely to confer survival benefit than CT plus or minus IO.
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Affiliation(s)
- Giannis Mountzios
- Fourth Oncology Department and Clinical Trials Unit, Henry Dunant Hospital Center, Athens, Greece,Corresponding author. Address for correspondence: Giannis Mountzios, MD, PhD, Fourth Oncology Department and Clinical Trials Unit, Henry Dunant Hospital Center, Mesogeion 107 Avenue, PC 11526, Athens, Greece.
| | - David Planchard
- Thoracic Group, Department of Medical Oncology, Institut Gustave-Roussy, Villejuif, France
| | - Giulio Metro
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Dora Tsiouda
- Department of Thoracic Oncology, Theageneion Hospital, Thessaloniki, Greece
| | - Arsela Prelaj
- Thoracic Oncology Unit, Medical Oncology Department 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy,Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Sofia Lampaki
- Department of Pneumonology, “Papanikolaou” Hospital, Thessaloniki, Greece
| | - Walid Shalata
- The Legacy Heritage Center & Dr. Larry Norton Institute, Soroka Medical Center and Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Mariona Riudavets
- Thoracic Group, Department of Medical Oncology, Institut Gustave-Roussy, Villejuif, France
| | - Petros Christopoulos
- Department of Thoracic Oncology, Thoraxklinik at Heidelberg University Hospital and German Center for Lung Research (DZL), Heidelberg, Germany
| | - Nicolas Girard
- Thorax Institute, Institut Curie, Paris, France and UVSQ, Paris-Saclay University, Versailles, France
| | | | - Rosario Garcia Campelo
- Medical Oncology Department, Thoracic Tumors Unit, University Hospital A Coruña and Biomedical Research Institute (INIBIC, A Coruña), Coruña, Spain
| | | | | | - Ioannis Boukovinas
- Department of Medical Oncology, Bioclinic Hospital, Thessaloniki, Greece
| | - Abed Agbarya
- Institute of Oncology, Bnai Zion Medical Center, Haifa, Israel
| | - Anna Koumarianou
- Department of Medical Oncology, Attikon University Hospital, Athens, Greece
| | | | - Paris Kosmidis
- Second Department of Medical Oncology, Hygeia Hospital, Athens, Greece
| | - Helena Linardou
- Fourth Oncology Department, Metropolitan Hospital, Athens, Greece
| | - David Mauri
- Department of Medical Oncology, University Hospital of Ioannina, Ioannina, Greece
| | - Dimitrios Mavroudis
- Department of Medical Oncology, University Hospital of Herakleion, Herakleion, Greece
| | | | | | - Nikolaos Xenidis
- Department of Medical Oncology, University Hospital of Alexandroupolis, Alexandroupolis, Greece
| | | | | | - Grigorios Rallis
- Department of Medical Oncology, “Theageneion Hospital,” Thessaloniki, Greece
| | - Achille Bottiglieri
- Thoracic Oncology Unit, Medical Oncology Department 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy,Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, Italy
| | | | | | - Alexandros Kokkalis
- Department of Medical Oncology, University Hospital of Larisa, Larisa, Greece
| | | | - Nikolaos Tsoukalas
- Department of Medical Oncology, 401 General Military Hospital, Athens, Greece
| | - Dimitra Bartzi
- Department of Medical Oncology, 251 General Airforce Hospital, Athens, Greece
| | - Panagiota Economopoulou
- Department of Medical Oncology, 2nd Department of Internal Medicine, Attikon University Hospital, Athens, Greece
| | - Amanda Psyrri
- Department of Medical Oncology, 2nd Department of Internal Medicine, Attikon University Hospital, Athens, Greece
| | - Martin Reck
- Lung Clinic, Airway Research Center North, German Center of Lung Research, Grosshansdorf, Germany
| | - Giuseppe Lo Russo
- Thoracic Oncology Unit, Medical Oncology Department 1, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy,Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, Italy
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Brazel D, Kroening G, Nagasaka M. Non-small Cell Lung Cancer with EGFR or HER2 Exon 20 Insertion Mutations: Diagnosis and Treatment Options. BioDrugs 2022; 36:717-729. [PMID: 36255589 PMCID: PMC9649507 DOI: 10.1007/s40259-022-00556-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2022] [Indexed: 11/02/2022]
Abstract
Molecular testing is performed upon diagnosis of non-small cell lung cancer (NSCLC) because of the large success of targeted therapies for oncogenic mutations. Epidermal growth factor receptor (EGFR) mutations are the most commonly identified mutation in NSCLC, and EGFR exon 20 insertion mutations (exon20ins) are the third most common mutation in EGFR following EGFR exon 19 deletions and exon 21 L858R mutations. EGFR exon20ins have regularly demonstrated resistance to classical EGFR inhibition. Two treatments-mobocertinib and amivantamab-have recently been the first drugs to be approved by the US Food and Drug Administration (FDA) for treatment of lung cancers with these mutations following platinum-based therapy. Research surrounding these two drugs demonstrates strong efficacy, but with an intense array of side effects. Another targetable driver mutation is the human epidermal growth factor receptor 2 (HER2) exon20ins, representing approximately 2-3% of NSCLC patients. This mutation has been heavily studied in vitro as well as clinically, and trastuzumab deruxtecan was just recently granted accelerated FDA approval based on the high efficacy demonstrated in the Destiny-Lung01 study. However, similar to their EGFR counterparts, HER2 inhibitors also have evidence of toxicity in clinical studies. In this paper, we discuss the limited response of EGFR and HER2 exon20ins to a wide range of standard treatment regimens, such as platinum-based chemotherapy and classic EGFR tyrosine kinase inhibitors, as well as immunotherapy. We also review recently approved and upcoming targeted therapeutic options, considering what research is presently being done regarding efficacy and the reduction of side effects, as well as the agents' risks and benefits for incorporation into an approved treatment regimen.
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Affiliation(s)
- Danielle Brazel
- Department of Medicine, University of California Irvine, Orange, CA, USA
| | - Gianna Kroening
- University of California Irvine School of Medicine, Orange, CA, USA
| | - Misako Nagasaka
- St. Marianna University School of Medicine, Kawasaki, Japan.
- Division of Hematology and Oncology, Department of Medicine, University of California, Irvine School of Medicine, Chao Family Comprehensive Cancer Center, 101 The City Drive South, Orange, CA, 92868, USA.
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15
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Zhang X, Han H, Zhao J, Liu X, Zhang J, Sun R, Li S, Liu B, Zhu H, Jiao S, Li X, Tang H. Case Report: A good response to furmonertinib second-line treatment of an advanced lung adenocarcinoma patient with a rare EGFR exon 20 N771_P772insH mutation: A case report and literature review. Front Pharmacol 2022; 13:964606. [PMID: 36059942 PMCID: PMC9432720 DOI: 10.3389/fphar.2022.964606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/01/2022] [Indexed: 12/24/2022] Open
Abstract
Background: Lung adenocarcinoma with the classical EGFR 19 deletion and exon 21 L858R point mutations has exhibited good responses to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) treatment. However, the sensitivity of uncommon EGFR exon 20 insertion mutation to third-generation EGFR-TKIs has not been determined. Although emerging targeted therapies for EGFR exon 20 insertion mutation have been reported in recent years, such patients still have a poorer prognosis than those with typical or wild-type EGFR mutations. Case summary: Here, we report the case of a 57-year-old man with advanced non-small cell lung cancer (NSCLC) with a rare EGFR exon 20 N771_P772insH mutation. The patient was treated with furmonertinib as second-line therapy. Although his pleural effusion was more than before that during treatment, various examination results showed that the pleural effusion was closely related to hypoproteinemia; thus, local progression was not considered. His cough was significantly alleviated, and the dose was well tolerated. The patient was evaluated for a remarkable progression-free survival (PFS) of 10.0 months, a duration of response (DOR) of 8.0 months, and an overall survival (OS) of 22.0 months, which had not previously been achieved. Conclusion: The present study indicated that furmonertinib might be a good treatment option for first-line progressive NSCLC patients with EGFR exon 20 insertion mutation.
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Affiliation(s)
- Xiao Zhang
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Huan Han
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Jiuzhou Zhao
- Department of Pathology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Xiao Liu
- Department of Radiotherapy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Jianbo Zhang
- Department of Pathology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Rui Sun
- Department of Pathology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Shaomei Li
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Baoxing Liu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Hui Zhu
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Shuyue Jiao
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Xiang Li
- Department of Pathology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Hong Tang
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
- *Correspondence: Hong Tang,
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Real-world evidence of the intrinsic limitations of PCR-based EGFR mutation assay in non-small cell lung cancer. Sci Rep 2022; 12:13566. [PMID: 35945330 PMCID: PMC9363455 DOI: 10.1038/s41598-022-17394-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 07/25/2022] [Indexed: 01/09/2023] Open
Abstract
Detection of driver gene mutations is important in advanced NSCLC. The cobas EGFR mutation test is a mutant allele-specific real-time PCR assay with limitation owing to its primer design. Next-generation sequencing-based assay has a higher mutation detection coverage; however, its clinical impact remains unclear. We retrospectively collected the records of stage IV NSCLC patients with wild-type EGFR tested by cobas test. FoundationOne CDx was used for comprehensive genomic profiles. We then evaluated the missed EGFR mutations by the cobas test. We studied 62 patients. The median age was 60 (range: 35–86 years). Most patients were male and 58.1% were smokers. 91.9% were adenocarcinomas. Of the 62 samples, 7 (11.3%) were detected with EGFR mutations by NGS. Among these overlooked EGFR mutations, five were exon 20 insertions, and two were exon 19 deletions. Two patients received EGFR TKIs and showed durable response with PFS 5.9 months and 10.1 months, respectively. Using NGS as the standard, the false-negative rate of the cobas EGFR mutation test was 11.3%—in a population with a high prevalence of EGFR mutations. The most overlooked mutations were exon 20 insertions. A comprehensive EGFR mutation assay can provide significant benefits to patients with NSCLC.
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Kwon CS, Lin HM, Crossland V, Churchill EN, Curran E, Forsythe A, Tomaras D, Ou SHI. Non-small cell lung cancer with EGFR exon 20 insertion mutation: a systematic literature review and meta-analysis of patient outcomes. Curr Med Res Opin 2022; 38:1341-1350. [PMID: 35621011 DOI: 10.1080/03007995.2022.2083326] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
INTRODUCTION EGFR exon 20 insertion mutation-positive non-small cell lung cancer (NSCLC) is rare, has a poor prognosis, and outcomes are not fully established. We describe and evaluate outcomes from real-world and clinical evidence in these patients. METHODS A systematic literature review (SLR) identified interventional and real-world evidence (RWE) studies reporting clinical outcomes for EGFR exon 20 insertion mutation-positive NSCLC. Meta-analyses were conducted by line of therapy to synthesize pooled survival and response outcomes across RWE. Published evidence from interventional studies was summarized individually. RESULTS The SLR identified 23 RWE and 19 original interventional studies. In the meta-analysis of RWE, pooled response and survival outcomes were low for first-line EGFR-tyrosine kinase inhibitors (TKIs) and immuno-oncology (IO) agents. First-line chemotherapy resulted in a pooled ORR 25.7%, pooled PFS 5.6 months, and pooled OS 18.3 months. Pooled outcomes were further reduced in second or later lines (≥2 L): pooled ORR was 5.0%, 3.3%, and 13.9%; pooled PFS was 2.1 months, 2.3 months, and 4.4 months; and pooled OS was 14.1 months, 8.8 months, and 17.1 months (not a pooled result) for EGFR-TKIs, IO agents, and chemotherapy, respectively. Interventional studies reported outcomes for TKIs (mobocertinib, poziotinib, osimertinib, afatinib, CLN-081, DZD9008), a monoclonal antibody (amivantamab), and a heat shock protein 90 inhibitor (luminespib). While there is limited RWE for the recently approved agents mobocertinib and amivantamab, which specifically target exon 20 insertion mutations, interventional evidence supports their potential as effective treatment options. CONCLUSIONS Conventional treatments used in patients with EGFR exon 20 insertion mutation-positive NSCLC have limited efficacy, though chemotherapy appeared to be associated with better response and survival outcomes than non-exon 20 targeting EGFR-TKIs and IO agents. This supports the need to identify EGFR exon 20 insertion mutations as the availability of new targeted treatments may offer additional therapeutic options to these patients.
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Affiliation(s)
| | - Huamao M Lin
- Takeda Oncology, Development Center Americas, Inc., Lexington, MA, USA
| | | | - Eric N Churchill
- Global Medical Lead, Takeda Pharmaceuticals USA, Inc., Lexington, MA, USA
| | - Eileen Curran
- Takeda Oncology, Development Center Americas, Inc., Lexington, MA, USA
| | | | - Dimitrios Tomaras
- Health Economics and Real World Evidence, Purple Squirrel Economics, Montreal, QC, Canada, a wholly owned subsidiary of Cytel, Inc
| | - Sai-Hong Ignatius Ou
- Chao Family Comprehensive Cancer Center, University of California Irvine School of Medicine, Orange, CA, USA
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Wang Q, Wang W, Pan W, Lv X, Zhang L, Zheng K, Tian F, Xu C. Case Report: Two Patients With EGFR Exon 20 Insertion Mutanted Non-Small Cell Lung Cancer Precision Treatment Using Patient-Derived Xenografts in Zebrafish Embryos. Front Oncol 2022; 12:884798. [PMID: 35936715 PMCID: PMC9348893 DOI: 10.3389/fonc.2022.884798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 06/10/2022] [Indexed: 12/25/2022] Open
Abstract
Background Epidermal growth factor receptor (EGFR) exon 20 insertion mutations are uncommon EGFR mutations and generally resistant to first- and second-generation EGFR-tyrosine kinase inhibitors (TKIs). In precision oncology, treatment regimens are tested for improving the clinical outcomes. Zebrafish embryo tumor transplant models are used in cancer research. Methods We report two Chinese females who were diagnosed with stage IV lung adenocarcinoma and shown to harbor EGFR exon 20 insertion mutations by next-generation sequencing (NGS). Then, we established lung cancer patient-derived xenografts using a zebrafish model. The tumor cells were isolated from the patient. For case one, tumor cells were collected from lymph node biopsy, while the tumor cells were obtained from the pleural effusion. Zebrafish were inoculated with tumor cells and placed in the culture medium containing the third-generation EGFR-TKI, osimertinib. Fluorescence microscope photographs were used to record the red fluorescence area, which represented the proliferation and migration of tumor cells in the zebrafish. Results Case one was diagnosed with lung adenocarcinoma (cT4N3M1b, stage IVB) and had an EGFR exon 20 mutation (p. N771delinsHH [abundance 14.08%]). Tumor cell proliferation and migration were significantly reduced in the osimertinib group compared with the control group. The patient received first-line osimertinib (160 mg). According to RECIST v1.1, she achieved a partial response. Case two had stage IVA lung adenocarcinoma with a pleural effusion. The pleural effusion sample was selected to obtain tumor cells for injection, and the zebrafish lung cancer model was established. The proliferation of tumor cells in the osimertinib group was significantly reduced compared to the control group. The migration of tumor cells was not significantly reduced compared to the control group. The patient also received first-line osimertinib (160 mg). The lung lesions were stable, but the pleural effusion was poorly controlled. Conclusion Our study demonstrates the applicability of a zebrafish embryos model as an innovative platform to targeted drug testing. More precise methods are needed to select treatment options in the future.
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Affiliation(s)
- Qian Wang
- Department of Respiratory Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Respiratory Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Suqian Hospital of Chinese Medicine, Suqian, China
| | - Wenxian Wang
- Department of Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China
| | - Weiwei Pan
- Department of Cell Biology, College of Medicine, Jiaxing University, Jiaxing, China
| | - Xiaojing Lv
- Department of Respiratory Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Lei Zhang
- Department of Respiratory Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Suqian Hospital of Chinese Medicine, Suqian, China
| | - Kaiming Zheng
- Department of Geriatric Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Fang Tian
- Department of Respiratory Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- *Correspondence: Chunwei Xu, ; Fang Tian,
| | - Chunwei Xu
- Department of Respiratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
- *Correspondence: Chunwei Xu, ; Fang Tian,
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19
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Christopoulos P, Kluck K, Kirchner M, Lüders H, Roeper J, Falkenstern-Ge RF, Szewczyk M, Sticht F, Saalfeld FC, Wesseler C, Hackanson B, Dintner S, Faehling M, Kuon J, Janning M, Kauffmann-Guerrero D, Kazdal D, Kurz S, Eichhorn F, Bozorgmehr F, Shah R, Tufman A, Wermke M, Loges S, Brueckl WM, Schulz C, Misch D, Frost N, Kollmeier J, Reck M, Griesinger F, Grohé C, Hong JL, Lin HM, Budczies J, Stenzinger A, Thomas M. The impact of TP53 co-mutations and immunologic microenvironment on outcome of lung cancer with EGFR exon 20 insertions. Eur J Cancer 2022; 170:106-118. [DOI: 10.1016/j.ejca.2022.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/22/2022] [Accepted: 04/13/2022] [Indexed: 11/30/2022]
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20
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Christofyllakis K, Monteiro AR, Cetin O, Kos IA, Greystoke A, Luciani A. Biomarker guided treatment in oncogene-driven advanced non-small cell lung cancer in older adults: A Young International Society of Geriatric Oncology Report. J Geriatr Oncol 2022; 13:1071-1083. [PMID: 35525790 DOI: 10.1016/j.jgo.2022.04.013] [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: 12/15/2021] [Revised: 04/08/2022] [Accepted: 04/25/2022] [Indexed: 10/18/2022]
Abstract
Lung cancer remains the leading cause of cancer-related deaths worldwide, with most patients diagnosed at an advanced age. The treatment of non-small cell lung cancer (NSCLC) has been revolutionized with the introduction of molecular guided therapy. Despites the challenges when considering treatment of older adults, they are still systematically underrepresented in registrational trials. This review aims to summarize the existing evidence on treatment of older patients with lung cancer with a targetable driver mutation or alteration (EGFR, ALK, ROS, BRAFV600E, MET, RET, KRASG12C and NTRK), and consider the evidence from a geriatric oncology perspective. Early generation EGFR-tyrosine kinase inhibitors (TKIs). TKIs are fairly well-studied in older adults and have been shown to be safe and efficient. However, older adult-specific data regarding the standard-of-care first-line agent osimertinib are lacking. Erlotinib, dacomitinib, and afatinib may be more toxic than other EGFR-TKIs. Next generation ALK-TKIs are preferred over crizotinib due to increased efficacy, as demonstrated in phase III trials. Alectinib seems to be safer than crizotinib, while brigatinib is associated with increased toxicity. Lorlatinib overcomes most resistance mutations, but data regarding this agent have only recently emerged. Regarding ROS1-fusion positive NSCLC, crizotinib is an option in older adults, while entrectinib is similarly effective but shows increased neurotoxicity. In BRAFV600E-mutant NSCLC, the combination darbafenib/tramectinib is effective, but no safety data for older adults exist. MET alterations can be targeted with capmatinib and tepotinib, and registrational trials included primarily older patients, due to the association of this alteration with advanced age. For RET-rearranged-NSCLC selpercatinib and pralsetinib are approved, and no differences in safety or efficacy between older and younger patients were shown. KRASG12C mutations, which are more frequent in older adults, became recently druggable with sotorasib, and advanced age does not seem to affect safety or efficacy. In NTRK-fusion positive tumors, larotrectinib and entrectinib have tumor agnostic approval, however, not enough data on older patients are available. Based on currently available data, molecularly-guided therapy for most alterations is safe and efficacious in older adults with oncogene-driven advanced NSCLC. However, for many TKIs, older adult-specific data are lacking, and should be subject of future prospective evaluations.
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Affiliation(s)
- Konstantinos Christofyllakis
- Department of Hematology, Oncology, Clinical Immunology and Rheumatology, Saarland University Medical Center, Homburg, Germany.
| | - Ana Raquel Monteiro
- Medical Oncology Department, Vila Nova de Gaia/Espinho Hospital Center, Vila Nova de Gaia, Portugal; Multidisciplinary Thoracic Tumors Unit - Pulmonology Department, Vila Nova de Gaia/Espinho Hospital Center, Vila Nova de Gaia, Portugal
| | - Onur Cetin
- Department of Hematology, Oncology, Clinical Immunology and Rheumatology, Saarland University Medical Center, Homburg, Germany
| | - Igor Age Kos
- Department of Hematology, Oncology, Clinical Immunology and Rheumatology, Saarland University Medical Center, Homburg, Germany
| | - Alastair Greystoke
- Northern Centre for Cancer Care, Newcastle-upon-Tyne NHS Foundation trust, Newcastle, UK
| | - Andrea Luciani
- Department of Medical Oncology, Ospedale di Treviglio- ASST Bergamo Ovest, Treviglio, Italy
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21
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Minchom A, Viteri S, Bazhenova L, Gadgeel SM, Ignatius Ou SH, Trigo J, Bauml JM, Backenroth D, Bhattacharya A, Li T, Mahadevia P, Girard N. Amivantamab compared with real-world therapies in patients with advanced non-small cell lung cancer harboring EGFR exon 20 insertion mutations who progressed after platinum-based chemotherapy. Lung Cancer 2022; 168:74-82. [DOI: 10.1016/j.lungcan.2022.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 12/19/2022]
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22
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John T, Taylor A, Wang H, Eichinger C, Freeman C, Ahn MJ. Uncommon EGFR mutations in non-small-cell lung cancer: A systematic literature review of prevalence and clinical outcomes. Cancer Epidemiol 2021; 76:102080. [PMID: 34922050 DOI: 10.1016/j.canep.2021.102080] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 11/29/2021] [Accepted: 12/05/2021] [Indexed: 12/13/2022]
Abstract
Mutations in exons 18-21 of the epidermal growth factor receptor gene (EGFR) can confer sensitivity to EGFR-tyrosine kinase inhibitors (EGFR-TKIs) in patients with non-small-cell lung cancer (NSCLC). Deletions in exon 19 or the exon 21 L858R substitution comprise approximately 85% of mutations, but comparatively few data are available on the remaining "uncommon" mutations. We conducted a systematic literature review to identify evidence on uncommon EGFR mutations in locally advanced/metastatic NSCLC (PROSPERO registration number: CRD42019126583). Electronic screening and congress searches identified studies published in 2012-2020 including patients with locally advanced/metastatic NSCLC and uncommon EGFR mutations (excluding T790M). We assessed the prevalence of uncommon mutations (in studies using direct sequencing of exons 18-21), and compared response to treatment and progression-free survival (PFS) in patients with common versus uncommon mutations and in those with exon 20 mutations versus other uncommon mutations. We identified 64 relevant studies. Uncommon mutations constituted 1.0-18.2% of all EGFR mutations, across 10 studies. The most frequently reported uncommon mutations were G719X (0.9-4.8% of all EGFR mutations), exon 20 insertions (Ex20ins; 0.8-4.2%), L861X (0.5-3.5%), and S768I (0.5-2.5%). Patients with common mutations typically experienced better treatment response and longer PFS on EGFR-TKIs than patients with uncommon mutations; Ex20ins mutations were associated with less favourable outcomes than other uncommon mutations. This review shows that uncommon mutations may comprise a clinically significant proportion of the EGFR mutations occurring in NSCLC, and highlights disparities in EGFR-TKI sensitivity between different uncommon mutations.
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Affiliation(s)
- Thomas John
- Peter MacCallum Cancer Centre, Locked Bag 1 A'Beckett St, Melbourne, VIC 8006, Australia.
| | - Aliki Taylor
- AstraZeneca, Oncology Business Unit, Academy House, 136 Hills Road, Cambridge CB2 8PA, UK.
| | - Huifen Wang
- AstraZeneca Pharmaceuticals, Oncology Business Unit, One MedImmune Way, Mailstop: 200ORD-2207G, Gaithersburg, MD 20878, USA.
| | - Christian Eichinger
- PharmaGenesis London, 2nd Floor, Heron House, 15 Adam Street, London WC2N 6RJ, UK.
| | - Caroline Freeman
- PharmaGenesis Oxford Central, Chamberlain House, 5 St Aldates Courtyard, 38 St Aldates, Oxford OX1 1BN, UK.
| | - Myung-Ju Ahn
- Department of Hematology and Oncology, Samsung Medical Center, (06351) 81 Irwon-Ro Gangnam-gu, Seoul, South Korea.
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23
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Bazhenova L, Minchom A, Viteri S, Bauml JM, Ou SHI, Gadgeel SM, Trigo JM, Backenroth D, Li T, Londhe A, Mahadevia P, Girard N. Comparative clinical outcomes for patients with advanced NSCLC harboring EGFR exon 20 insertion mutations and common EGFR mutations. Lung Cancer 2021; 162:154-161. [PMID: 34818606 DOI: 10.1016/j.lungcan.2021.10.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/20/2021] [Accepted: 10/30/2021] [Indexed: 01/23/2023]
Abstract
INTRODUCTION Real-world clinical outcomes in patients with advanced NSCLC harboring EGFR exon 20 insertion (exon20ins) mutations have not been extensively studied. We conducted a retrospective cohort study to assess the clinical outcomes of EGFR exon20ins compared with common EGFR (cEGFR) mutations. METHODS Adults with advanced NSCLC harboring any EGFR mutations in the NSCLC Flatiron registry (2011 through May 2020) were included. To compare the relative prognosis (prognostic value) of exon20ins vs cEGFR, real-world overall survival (rwOS) was the primary endpoint. Separately, to compare the relative response to tyrosine kinase inhibitor (TKI) treatment (predictive value), real-world progression-free survival (rwPFS) was the primary endpoint. RESULTS For the prognostic value analysis, 3014 patients with EGFR mutant NSCLC (cEGFR, n = 2833; EGFR exon20ins, n = 181) were eligible. The median (95% CI) rwOS was 16.2 (11.04-19.38) months in the EGFR exon20ins cohort vs 25.5 (24.48-27.04) months in the cEGFR cohort (adjusted HR, 1.75 [1.45-2.13]; p < 0.0001); 5-year rwOS was 8% and 19%, respectively. For the predictive value analysis, 2825 patients received TKI treatment and were eligible (cEGFR, n = 2749; EGFR exon20ins, n = 76). The median (95% CI) rwPFS from start of the first TKI was 2.9 (2.14-3.91) months in the EGFR exon20ins cohort vs 10.5 (10.05-10.94) months in the cEGFR cohort (adjusted HR, 2.69 [2.05-3.54]; p < 0001). Among patients with EGFR exon20ins, the most common prescribed first-line therapy was platinum-based chemotherapy (61.3%) followed by EGFR TKIs (21.5%); second-line treatments were varied, with no clear standard of care. CONCLUSIONS Patients with EGFR exon20ins have poor prognosis and receive little benefit from EGFR TKI treatment. More effective therapies are needed in this difficult-to-treat population.
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Affiliation(s)
| | - Anna Minchom
- Drug Development Unit, Royal Marsden Hospital/Institute of Cancer Research, Sutton, UK
| | - Santiago Viteri
- Instituto Oncológico Dr Rosell, Centro Médico Teknon, Grupo QuironSalud, Barcelona, Spain
| | - Joshua M Bauml
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Sai-Hong Ignatius Ou
- University of California Irvine School of Medicine, Chao Family Comprehensive Cancer Center, Orange, CA, USA
| | - Shirish M Gadgeel
- Henry Ford Cancer Institute/Henry Ford Health System, Detroit, MI, USA
| | - José Manuel Trigo
- UGC Intercentros Oncol Med Hosp Univer Regional y Virgen Victoria, IBIMA, Malaga, Spain
| | | | - Tracy Li
- Janssen Research & Development, Spring House, PA, USA
| | - Anil Londhe
- Janssen Research & Development, Spring House, PA, USA
| | | | - Nicolas Girard
- Institut Curie, Institut du Thorax Curie-Montsouris, Paris, France
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24
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Malapelle U, Pilotto S, Reale ML, Passiglia F, Pisapia P, Pepe F, Belluomini L, Galetta D, Cortinovis D, Tiseo M, Passaro A, Seminati D, Pagni F, Parra HS, Migliorino MR, Rocco D, Troncone G, Novello S. Epidermal growth factor receptor exon 20 insertion variants in non-small cell lung cancer patients. Crit Rev Oncol Hematol 2021; 169:103536. [PMID: 34801697 DOI: 10.1016/j.critrevonc.2021.103536] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 10/18/2021] [Accepted: 11/15/2021] [Indexed: 12/22/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) exon 20 insertions occur rarely among different cancer types, with the highest frequency reported among non-small-cell lung cancer (NSCLC) patients, particularly adenocarcinomas (ADCs). Exon 20 insertions fall back in the tyrosine kinase domain, and can be clustered into two principal groups represented by in frame insertions and three to 21 bp (corresponding to 1-7 amino acids) duplications within amino acids 762 and 774. The identification of these alterations is key for an adequate management of NSCLC patients due to the possibility to treat these patients with specific targeted therapies. Next generation sequencing (NGS) technology, able to detect several hotspot gene mutations for different patients simultaneously, is the best detection approach due to its higher sensitivity and specificity compared to other techniques. Here we reviewed the principal biological characteristics, the main detection technologies and treatment options for NSCLC patients harbouring EGFR exon 20 insertions.
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Affiliation(s)
- Umberto Malapelle
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Sara Pilotto
- U.O.C. of Oncology, Azienda Ospedaliera Universitaria Integrata, University of Verona, Verona, Italy
| | - Maria Lucia Reale
- Department of Oncology, San Luigi Gonzaga Hospital, University of Turin, Orbassano, Italy
| | - Francesco Passiglia
- Department of Oncology, San Luigi Gonzaga Hospital, University of Turin, Orbassano, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Francesco Pepe
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Lorenzo Belluomini
- U.O.C. of Oncology, Azienda Ospedaliera Universitaria Integrata, University of Verona, Verona, Italy
| | - Domenico Galetta
- Medical Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Diego Cortinovis
- SC Oncologia Medica, SS Lung Unit Asst Ospedale San Gerardo, Monza, Italy
| | - Marcello Tiseo
- Department of Medicine and Surgery, Medical Oncology Unit, University Hospital of Parma, Parma, Italy
| | - Antonio Passaro
- Division of Thoracic Oncology, European Institute of Oncology, IRCCS, Milan, Italy
| | - Davide Seminati
- Department of Medicine and Surgery, Pathology, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy
| | - Fabio Pagni
- Department of Medicine and Surgery, Pathology, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy
| | - Hector Soto Parra
- Department of Oncology, Medical Oncology, University Hospital Policlinico-San Marco, Catania, Italy
| | | | - Danilo Rocco
- Pneumo-Oncology Unit, Ospedali dei Colli Monaldi Cotugno CTO, Napoli, Italy
| | - Giancarlo Troncone
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Silvia Novello
- Department of Oncology, San Luigi Gonzaga Hospital, University of Turin, Orbassano, Italy.
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25
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Zhi X, Luo J, Li W, Wang J, Wang Y, Cai Y, Yan X. Case Report: Osimertinib Followed by Osimertinib Plus Bevacizumab, Personalized Treatment Strategy for a Lung Cancer Patient With a Novel EGFR Exon 20 Insertion D770_N771insGT and Multiple Brain Metastases. Front Oncol 2021; 11:733276. [PMID: 34760695 PMCID: PMC8573166 DOI: 10.3389/fonc.2021.733276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/07/2021] [Indexed: 11/13/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (EGFR-TKIs) are the standard of care for non–small cell lung cancer (NSCLC) patients with EGFR exon 19 deletion and L858R mutations. However, no EGFR TKI has been approved for NSCLC patients harboring insertion mutations in EGFR exon 20 (EGFRex20ins), a subgroup of uncommon EGFR mutations resistant to first-generation EGFR TKIs. This unmet clinical challenge is further complicated by disease progression due to brain metastases (BMs), which limits the use of EGFR TKIs with low intracranial activity. Osimertinib, a third-generation EGFR TKI with high CNS activity, has demonstrated superior efficacy as a first-line treatment for EGFR-mutant NSCLC with or without BM. The VEGF pathway is a key mediator of cancer metastasis and resistance to EGFR TKIs. Accumulating evidence has demonstrated that the addition of anti-VEGF agents to EGFR TKIs provides an alternative treatment option for the clinical management of EGFR-mutant NSCLC. We herein report an NSCLC case with a novel EGFRex20ins mutation D770_N771insGT and multiple brain metastases who briefly responded to first-line osimertinib treatment and subsequently achieved prolonged disease control with osimertinib plus bevacizumab as second-line treatment. Our case suggests that osimertinib in combination with bevacizumab may be an effective option for NSCLC patients with specific EGFRex20ins mutations and brain metastases.
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Affiliation(s)
- Xiaoyu Zhi
- Department of Oncology, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.,Medical School of Chinese People's Liberation Army (PLA), Beijing, China
| | | | - Weiwei Li
- Department of Oncology, The 81st Group Army Hospital of Chinese People's Liberation Army (PLA), Zhangjiakou, China
| | - Jinliang Wang
- Department of Oncology, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yuying Wang
- Department of Oncology, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.,Medical School of Chinese People's Liberation Army (PLA), Beijing, China
| | - Yi Cai
- Independent Researcher, Ellicott City, MD, United States
| | - Xiang Yan
- Department of Oncology, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
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26
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Bai R, Chen X, Song W, Tian H, Cui J. Therapeutic exploration of uncommon EGFR exon 20 insertion mutations in advanced non-small cell lung cancer: breaking through brambles and thorns. J Cancer Res Clin Oncol 2021; 148:163-176. [PMID: 34698913 DOI: 10.1007/s00432-021-03840-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/18/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND EGFR exon 20 insertion (EGFR ex20ins) mutations account for about 10-12% of all EGFR-mutated tumors, which are usually associated with primary drug resistance to conventional EGFR-TKI therapy and worse survival outcomes, and are currently a major problem for clinicians in clinical management. In recent years, with the rapid improvement of sequencing technology and careful review of clinical data, investigators have gained a deeper understanding and clearer cognition of the clinicopathological features and molecular mechanisms of these EGFR ex20ins mutations. PURPOSE The aim of this study was to systemically review the molecular structure and clinical characteristics of EGFR ex20ins mutations, and focus on summarizing the latest data of emerging therapies (including novel small-molecule EGFR-TKI drugs, specific monoclonal antibodies, novel drugs targeting other mechanisms, and immunotherapy) for those patients. CONCLUSION Advances in overcoming these systemic challenges have greatly accelerated the development of new drugs targeting EGFR ex20ins, and are committed to designing more rational combination therapies to overcome or delay the emergence of drug resistance, ultimately improve the prognosis of such uncommon mutant populations.
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Affiliation(s)
- Rilan Bai
- Cancer Center, The First Hospital of Jilin University, Changchun, 130021, China
| | - Xiao Chen
- Cancer Center, The First Hospital of Jilin University, Changchun, 130021, China
| | - Wei Song
- Cancer Center, The First Hospital of Jilin University, Changchun, 130021, China
| | - Huimin Tian
- Cancer Center, The First Hospital of Jilin University, Changchun, 130021, China
| | - Jiuwei Cui
- Cancer Center, The First Hospital of Jilin University, Changchun, 130021, China.
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27
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Morita C, Yoshida T, Shirasawa M, Masuda K, Matsumoto Y, Shinno Y, Yagishita S, Okuma Y, Goto Y, Horinouchi H, Yamamoto N, Motoi N, Yatabe Y, Ohe Y. Clinical characteristics of advanced non-small cell lung cancer patients with EGFR exon 20 insertions. Sci Rep 2021; 11:18762. [PMID: 34548567 PMCID: PMC8455549 DOI: 10.1038/s41598-021-98275-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/24/2021] [Indexed: 01/13/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) exon 20 insertion mutations (Exon20ins) account for 4–12% of all EGFR mutations in non-small cell lung cancer (NSCLC) patients. Data on the differences in clinical characteristics between patients with Exon20ins and major mutations (M-mut) such as exon 19 deletion and L858R are limited. We retrospectively reviewed advanced NSCLC patients with EGFR mutations, who were treated with systemic therapy between January 2011 and December 2019. We identified 23 patients with Exon20ins and 534 patients with M-mut. In Exon20ins patients, the median age was 60 (range 27–88) years, and females and never-smokers were predominant. Clinical characteristics were similar in the two groups. In Exon20ins patients, 17 patients received platinum doublet as first-line therapy, and the overall response rate (ORR) and median progression-free survival (mPFS) were 11.8% and 8.9 months. Additionally, seven patients received conventional EGFR-tyrosine kinase inhibitors (TKIs), and eight patients anti-PD-1 antibodies in any-line therapy. ORR and mPFS of EGFR-TKIs and anti-PD-1 antibodies were 0%, 2.2 months and 25%, 3.1 months, respectively. Overall survival was significantly shorter in Exon20ins patients than in M-mut patients (29.3 vs. 43.4 months, p = 0.04). The clinical outcomes in Exon20ins patients were not satisfactory compared to M-mut patients.
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Affiliation(s)
- Chie Morita
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Tatsuya Yoshida
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Masayuki Shirasawa
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Ken Masuda
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yuji Matsumoto
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yuki Shinno
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Shigehiro Yagishita
- Division of Molecular Pharmacology, National Cancer Center Research Institute, Tokyo, Japan
| | - Yusuke Okuma
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yasushi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Hidehito Horinouchi
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Noboru Yamamoto
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Noriko Motoi
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Yasushi Yatabe
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Yuichiro Ohe
- Department of Thoracic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
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28
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Park K, Haura EB, Leighl NB, Mitchell P, Shu CA, Girard N, Viteri S, Han JY, Kim SW, Lee CK, Sabari JK, Spira AI, Yang TY, Kim DW, Lee KH, Sanborn RE, Trigo J, Goto K, Lee JS, Yang JCH, Govindan R, Bauml JM, Garrido P, Krebs MG, Reckamp KL, Xie J, Curtin JC, Haddish-Berhane N, Roshak A, Millington D, Lorenzini P, Thayu M, Knoblauch RE, Cho BC. Amivantamab in EGFR Exon 20 Insertion-Mutated Non-Small-Cell Lung Cancer Progressing on Platinum Chemotherapy: Initial Results From the CHRYSALIS Phase I Study. J Clin Oncol 2021; 39:3391-3402. [PMID: 34339292 PMCID: PMC8791812 DOI: 10.1200/jco.21.00662] [Citation(s) in RCA: 343] [Impact Index Per Article: 114.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
PURPOSE Non–small-cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) exon 20 insertion (Exon20ins) mutations exhibits inherent resistance to approved tyrosine kinase inhibitors. Amivantamab, an EGFR-MET bispecific antibody with immune cell–directing activity, binds to each receptor's extracellular domain, bypassing resistance at the tyrosine kinase inhibitor binding site. METHODS CHRYSALIS is a phase I, open-label, dose-escalation, and dose-expansion study, which included a population with EGFR Exon20ins NSCLC. The primary end points were dose-limiting toxicity and overall response rate. We report findings from the postplatinum EGFR Exon20ins NSCLC population treated at the recommended phase II dose of 1,050 mg amivantamab (1,400 mg, ≥ 80 kg) given once weekly for the first 4 weeks and then once every 2 weeks starting at week 5. RESULTS In the efficacy population (n = 81), the median age was 62 years (range, 42-84 years); 40 patients (49%) were Asian, and the median number of previous lines of therapy was two (range, 1-7). The overall response rate was 40% (95% CI, 29 to 51), including three complete responses, with a median duration of response of 11.1 months (95% CI, 6.9 to not reached). The median progression-free survival was 8.3 months (95% CI, 6.5 to 10.9). In the safety population (n = 114), the most common adverse events were rash in 98 patients (86%), infusion-related reactions in 75 (66%), and paronychia in 51 (45%). The most common grade 3-4 adverse events were hypokalemia in six patients (5%) and rash, pulmonary embolism, diarrhea, and neutropenia in four (4%) each. Treatment-related dose reductions and discontinuations were reported in 13% and 4% of patients, respectively. CONCLUSION Amivantamab, via its novel mechanism of action, yielded robust and durable responses with tolerable safety in patients with EGFR Exon20ins mutations after progression on platinum-based chemotherapy.
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Affiliation(s)
- Keunchil Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Eric B Haura
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | | | - Paul Mitchell
- Olivia Newton-John Cancer Wellness and Research Centre, Austin Hospital, Heidelberg, Australia
| | | | | | - Santiago Viteri
- Instituto Oncológico Dr Rosell, Hospital Universitari Dexeus, Grupo QuironSalud, Barcelona, Spain
| | - Ji-Youn Han
- National Cancer Center, Gyeonggi-do, South Korea
| | - Sang-We Kim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | | | | | - Alexander I Spira
- Virginia Cancer Specialists Research Institute, US Oncology Research, Fairfax, VA
| | | | - Dong-Wan Kim
- Seoul National University College of Medicine and Seoul National University Hospital, Seoul, South Korea
| | - Ki Hyeong Lee
- Chungbuk National University Hospital, Cheongju, South Korea
| | - Rachel E Sanborn
- Earle A. Chiles Research Institute, Providence Cancer Institute, Portland, OR
| | - José Trigo
- Hospital Universitario Virgen de la Victoria y Regional, IBIMA, Malaga, Spain
| | - Koichi Goto
- National Cancer Center Hospital East, Kashiwa, Japan
| | - Jong-Seok Lee
- Seoul National University Bundang Hospital, Seongnam, South Korea
| | | | | | - Joshua M Bauml
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Pilar Garrido
- Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain
| | - Matthew G Krebs
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, The University of Manchester and The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | | | | | | | | | | | | | | | | | | | - Byoung Chul Cho
- Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
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Khaddour K, Jonna S, Deneka A, Patel JD, Abazeed ME, Golemis E, Borghaei H, Boumber Y. Targeting the Epidermal Growth Factor Receptor in EGFR-Mutated Lung Cancer: Current and Emerging Therapies. Cancers (Basel) 2021; 13:3164. [PMID: 34202748 PMCID: PMC8267708 DOI: 10.3390/cancers13133164] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/17/2021] [Accepted: 06/19/2021] [Indexed: 02/07/2023] Open
Abstract
Epidermal growth factor receptor-targeting tyrosine kinase inhibitors (EGFR TKIs) are the standard of care for patients with EGFR-mutated metastatic lung cancer. While EGFR TKIs have initially high response rates, inherent and acquired resistance constitute a major challenge to the longitudinal treatment. Ongoing work is aimed at understanding the molecular basis of these resistance mechanisms, with exciting new studies evaluating novel agents and combination therapies to improve control of tumors with all forms of EGFR mutation. In this review, we first provide a discussion of EGFR-mutated lung cancer and the efficacy of available EGFR TKIs in the clinical setting against both common and rare EGFR mutations. Second, we discuss common resistance mechanisms that lead to therapy failure during treatment with EGFR TKIs. Third, we review novel approaches aimed at improving outcomes and overcoming resistance to EGFR TKIs. Finally, we highlight recent breakthroughs in the use of EGFR TKIs in non-metastatic EGFR-mutated lung cancer.
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Affiliation(s)
- Karam Khaddour
- Division of Hematology and Oncology, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Sushma Jonna
- Division of Hematology and Oncology, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Alexander Deneka
- Fox Chase Cancer Center, Program in Molecular Therapeutics, Philadelphia, PA 19111, USA; (A.D.); (E.G.)
| | - Jyoti D. Patel
- Robert H. Lurie Comprehensive Cancer Center, Division of Hematology/Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA;
| | - Mohamed E. Abazeed
- Robert H. Lurie Comprehensive Cancer Center, Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA;
| | - Erica Golemis
- Fox Chase Cancer Center, Program in Molecular Therapeutics, Philadelphia, PA 19111, USA; (A.D.); (E.G.)
| | - Hossein Borghaei
- Fox Chase Cancer Center, Department of Hematology and Oncology, Philadelphia, PA 19111, USA;
| | - Yanis Boumber
- Robert H. Lurie Comprehensive Cancer Center, Division of Hematology/Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA;
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
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Tønnesen E, Lade-Keller J, Stougaard M. Frequently used quantitative polymerase chain reaction-based methods overlook potential clinically relevant genetic alterations in epidermal growth factor receptor compared with next-generation sequencing: a retrospective clinical comparison of 1839 lung adenocarcinomas. Hum Pathol 2021; 115:67-75. [PMID: 34153308 DOI: 10.1016/j.humpath.2021.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/05/2021] [Accepted: 06/07/2021] [Indexed: 10/21/2022]
Abstract
AIMS The aim of the study was to investigate the advantage of implementing next-generation sequencing (NGS) compared with quantitative polymerase chain reaction (qPCR) when performing routine molecular diagnostics in adenocarcinomas of the lung. METHODS The study is a retrospective cross-sectional observational study of 1839 cytological and histological adenocarcinoma biopsies investigated for gene mutations from 2016 to 2018 at the Department of Pathology at Aarhus University Hospital. A total of 1169 samples were analyzed by qPCR for the presence of EGFR hotspot mutations from 2016 to 2017. A total of 670 samples were analyzed with NGS for the presence of EGFR mutations and other gene mutations in 2018. RESULTS The average frequency of EGFR mutations in the study population was 11.5%, with the highest frequency found in 2018, where NGS was implemented (10.8% in 2016, 11.5% in 2017, and 12.2% in 2018). Possible therapy resistance markers such as EGFR exon 20 mutations were found more commonly after NGS implementation, the difference being statistically significant (P = .015). In addition, NGS (2018) showed that 40.6% of the samples had KRAS mutations and 6.0% had BRAF mutations, mutations not commonly investigated in lung adenocarcinomas when qPCR is the method of choice. Among the EGFR-mutated samples analyzed with NGS, 13 contained a concurrent EGFR mutation, whereas three and two contained a concurrent KRAS and BRAF mutations, respectively. CONCLUSIONS With the implementation in a clinical setting, NGS identifies more uncommon but potentially clinically important EGFR mutations, unique combinations of EGFR mutations, and concurrent mutations in KRAS and BRAF.
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Affiliation(s)
- Ea Tønnesen
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus C, Denmark; Department of Pathology, Aarhus University Hospital, 8200 Aarhus N, Denmark.
| | - Johanne Lade-Keller
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus C, Denmark; Department of Pathology, Aarhus University Hospital, 8200 Aarhus N, Denmark
| | - Magnus Stougaard
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus C, Denmark; Department of Pathology, Aarhus University Hospital, 8200 Aarhus N, Denmark
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Kunimasa K, Nishino K, Kukita Y, Matsumoto S, Kawachi H, Kawamura T, Inoue T, Tamiya M, Honma K, Sugimoto N, Yamasaki T, Imamura F, Goto K, Kumagai T. Late recurrence of lung adenocarcinoma harboring EGFR exon 20 insertion (A763_Y764insFQEA) mutation successfully treated with osimertinib. Cancer Genet 2021; 256-257:57-61. [PMID: 33901930 DOI: 10.1016/j.cancergen.2021.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 03/19/2021] [Accepted: 04/06/2021] [Indexed: 12/26/2022]
Abstract
The EGFR-A763_Y764insFQEA is a unique mutation among EGFR exon 20 insertion mutations in that it is associated with sensitivity to conventional EGFR-tyrosine kinase inhibitors. This mutation, which was not initially covered by conventional reverse transcription polymerase chain reaction (RT-PCR) genotyping method, has only been detected in clinical practice when a next-generation sequencing (NGS)-based cancer panel is implemented. We present the case of a female patient with recurrent lung adenocarcinoma from a lung tumor resected 10 years earlier. Sequential single-gene investigations and the OncomineTM Comprehensive Assay (ver.3) analysis of the recurrent tumor did not reveal any targetable driver mutations. However, the second NGS analysis with the OncoGuideTM NCC oncopanel found the EGFR-A763_Y764insFQEA mutation after tumor progression with carcinomatous lymphangiomatosis and multiple brain metastases. Osimertinib treatment improved her condition immediately. The identical EGFR-A763_Y764insFQEA mutation was detected in the tumor resected 10 years earlier. Based on this common mutation the patient was diagnosed with late recurrence of lung cancer harboring the EGFR-A763_Y764insFQEA mutation. The OncoGuideTM NCC oncopanel covered whole exons of the EGFR gene and was able to detect this mutation. In the present clinical practice, the EGFR-A763_Y764insFQEA mutation is the only treatable mutation among EGFR Ex.20 insertion mutations. We need to understand the gene mutation profile identified by each panel and consider reexamining them for this mutation.
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Affiliation(s)
- Kei Kunimasa
- Department of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka 541-8567, Osaka, Japan; Department of Genetic Oncology, Osaka International Cancer Institute, Osaka, Japan.
| | - Kazumi Nishino
- Department of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka 541-8567, Osaka, Japan
| | - Yoji Kukita
- Laboratory of Genomic Pathology, Osaka International Cancer Institute, Osaka, Japan
| | - Shingo Matsumoto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Hayato Kawachi
- Department of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka 541-8567, Osaka, Japan
| | - Takahisa Kawamura
- Department of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka 541-8567, Osaka, Japan
| | - Takako Inoue
- Department of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka 541-8567, Osaka, Japan
| | - Motohiro Tamiya
- Department of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka 541-8567, Osaka, Japan
| | - Keiichiro Honma
- Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
| | - Naotoshi Sugimoto
- Department of Medical Oncology, Osaka International Cancer Institute, Osaka, Japan; Department of Genetic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Tomoyuki Yamasaki
- Department of Endocrinology/Metabolism Internal Medicine, Clinical Examination, Osaka International Cancer Institute, Osaka, Japan; Department of Genetic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Fumio Imamura
- Department of Medical Oncology, Osaka International Cancer Institute, Osaka, Japan; Department of Genetic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Koichi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Toru Kumagai
- Department of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka 541-8567, Osaka, Japan
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32
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Burnett H, Emich H, Carroll C, Stapleton N, Mahadevia P, Li T. Epidemiological and clinical burden of EGFR Exon 20 insertion in advanced non-small cell lung cancer: A systematic literature review. PLoS One 2021; 16:e0247620. [PMID: 33684140 PMCID: PMC7939356 DOI: 10.1371/journal.pone.0247620] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/09/2021] [Indexed: 12/24/2022] Open
Abstract
Objectives The burden of epidermal growth factor receptor (EGFR) exon 20 insertion mutation (Exon 20ins) in non-small cell lung cancer is not well understood. A systematic review was conducted to identify evidence on mutation frequency, prognostic impact, clinical, patient-reported, and economic outcomes associated with Exon 20ins. Materials and methods Searches were conducted in Embase and Medline and supplemented with recent conference proceedings. Included studies were not limited by intervention, geography, or publication year. Results Seventy-eight unique studies were included; 53 reporting mutation frequency, 13 prognostic impact, 36 clinical outcomes, and one humanistic burden. No economic burden data were identified. The frequency of Exon 20ins mutation ranged from 0.1% to 4% of all NSCLC cases and 1% to 12% of all EGFR mutations. Data on the prognostic impact of Exon 20ins were heterogeneous but highlighted poorer outcomes in patients with Exon 20ins mutation compared with patients with other EGFR mutations and EGFR wildtype across a wide range of therapies and treatment lines. Comparative evidence on the clinical efficacy and safety of currently available therapies were limited, as were sample sizes of studies reporting on real-world effectiveness. Nine single-arm trials and 27 observational studies reported clinical outcomes for patients with Exon 20ins. Trends towards better survival and response were observed for chemotherapy compared with TKIs as first-line treatments. For subsequent treatment lines, novel targeted therapies provided encouraging preliminary responses while results for chemotherapy were less favorable. Limited safety data were reported. One conference abstract described the symptom burden for Exon 20ins patients with fatigue and pain being most common. Conclusion Findings of the systematic review show a high unmet need for safe and efficacious treatments for patients with Exon 20ins as well and need for further evidence generation to better understand the patient-level and economic impact for these patients.
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Affiliation(s)
| | | | - Chris Carroll
- The University of Sheffield, Sheffield, United Kingdom
| | | | | | - Tracy Li
- Janssen Global Services, Raritan, NJ, United States of America
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Hirose T, Ikegami M, Endo M, Matsumoto Y, Nakashima Y, Mano H, Kohsaka S. Extensive functional evaluation of exon 20 insertion mutations of EGFR. Lung Cancer 2020; 152:135-142. [PMID: 33395611 DOI: 10.1016/j.lungcan.2020.12.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/13/2020] [Accepted: 12/15/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Exon 20 insertion mutations of epidermal growth factor receptor (EGFR) have been identified as oncogenic mutations in general; however, the functional relevance of each remains largely uninvestigated. Herein, we comprehensively assessed the functional significance of insertion mutations of EGFR exon 20. MATERIALS AND METHODS The transforming potential and drug sensitivities of 25 EGFR recurrent mutants, including twenty-one exon 20 insertions, were evaluated using the mixed-all-nominated-in-one method. RESULTS The sensitivity of EGFR exon 20 insertions to EGFR tyrosine kinase inhibitors (TKIs) was generally lower than that of the L858R mutation or exon 19 deletions. The results were also confirmed through an in vivo drug test. All of the exon 20 insertions were resistant to gefitinib and afatinib, whereas several mutants were sensitive to osimertinib. EGFR exon 20 insertions exhibited relatively good responses to poziotinib and mobocertinib. CONCLUSIONS EGFR exon 20 insertions were shown to have different degrees of sensitivity to EGFR TKIs. This extensive assessment of EGFR exon 20 insertions may provide a fundamental database for aiding in a customized mode of therapy for cancers having insertional mutations within exon 20 of EGFR, although the clinical impact of preclinical data should be validated by clinical evidence in the future.
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Affiliation(s)
- Takeshi Hirose
- Division of Cellular Signaling, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan; Department of Orthopaedic Surgery, Graduate School of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masachika Ikegami
- Division of Cellular Signaling, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Makoto Endo
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yoshihiro Matsumoto
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroyuki Mano
- Division of Cellular Signaling, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Shinji Kohsaka
- Division of Cellular Signaling, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
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Passaro A, Mok T, Peters S, Popat S, Ahn MJ, de Marinis F. Recent Advances on the Role of EGFR Tyrosine Kinase Inhibitors in the Management of NSCLC With Uncommon, Non Exon 20 Insertions, EGFR Mutations. J Thorac Oncol 2020; 16:764-773. [PMID: 33333327 DOI: 10.1016/j.jtho.2020.12.002] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 11/02/2020] [Accepted: 12/02/2020] [Indexed: 01/29/2023]
Abstract
The first-line treatment of choice for patients with EGFR mutation-positive NSCLC is an EGFR tyrosine kinase inhibitor (TKI), of which five as follows are predominantly available in practice: gefitinib, erlotinib, afatinib, dacomitinib, and osimertinib. Most prospective clinical trial data with these agents are limited to patients with the common activating and sensitizing EGFR mutations as follows: exon 19 deletions and exon 21 L858R point mutations. However, 10% to 20% of patients with NSCLC harbor uncommon EGFR mutations that have variable sensitivity to different EGFR TKIs. Owing to their molecular structures, afatinib, dacomitinib, and osimertinib have broader inhibitory profiles than the first-generation agents, gefitinib and erlotinib. Nevertheless, the paucity of prospective clinical data, the wide heterogeneity of uncommon mutations, and the existence of compound mutations in up to 25% of the cases complicate treatment decisions in this patient subgroup. Here, we collate the latest preclinical and clinical data regarding the activity of different TKIs against major uncommon EGFR mutations including compound mutations, but excluding exon 20 insertions which are generally insensitive to TKIs. On the basis of these data, we offer suggestions regarding treatment strategies for uncommon EGFR mutations. Moving forward, it will be important to include uncommon EGFR mutations in the first-line molecular analysis of all patients with adenocarcinoma of the lung, as this will help optimize patient outcomes according to their precise genotype.
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Affiliation(s)
- Antonio Passaro
- Division of Thoracic Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy.
| | - Tony Mok
- Department of Clinical Oncology, State Key Laboratory in Translational Oncology, Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Solange Peters
- Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne University, Lausanne, Switzerland
| | - Sanjay Popat
- Lung Unit, Royal Marsden National Health Service Foundation Trust, London, United Kingdom; The Institute of Cancer Research, London, United Kingdom
| | - Myung-Ju Ahn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Filippo de Marinis
- Division of Thoracic Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy
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Yang GJ, Li J, Xu HY, Sun Y, Liu L, Li HS, Yang L, Zhang Y, Li GH, Wang Y. Osimertinib for Chinese advanced non-small cell lung cancer patients harboring diverse EGFR exon 20 insertion mutations. Lung Cancer 2020; 152:39-48. [PMID: 33341538 DOI: 10.1016/j.lungcan.2020.11.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 11/08/2020] [Accepted: 11/25/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Epidermal growth factor receptor (EGFR) exon 20 insertion (ex20 ins) mutations are generally associated with de novo resistance to first- or second-generation EGFR tyrosine kinase inhibitors in non-small cell lung cancer (NSCLC). However, the real efficacy of osimertinib for this subset remains elusive. We performed this study to investigate the real efficacy of osimertinib for Chinese advanced NSCLC patients harboring EGFR ex20 ins mutations. MATERIALS AND METHODS We retrospectively collected data of metastatic NSCLC patients with EGFR ex20 ins mutations who were treated with osimertinib 80 mg or 160 mg once daily in our center from June 2017 to May 2020. Progression-free survival (PFS), objective response rate (ORR) and disease control rate (DCR) were assessed. RESULTS A total of 62 cases with EGFR ex20 ins mutations were included, and the major insertion variant was D770_N771insSVD and V769_D770insASV (45.1 %). Concurrent TP53 mutation was most commonly observed (59.7 %). Four patients showed partial response, 29 cases with stable disease and 29 showed progressive disease as best response to osimertinib (ORR: 6.5 %, DCR: 53.2 %). The median PFS (mPFS) in total patients was 2.3 (95 %CI, 1.5-3.1) months. Patients harboring A763_Y764insFQEA/D770delinsGY variants showed numerically longer mPFS than those with other variants (4.2 vs. 2.2 months, P = 0.164). Patients who failed to osimertinib and occurred extracranial progression showed similar mPFS to those with intracranial progression (2.3 vs. 1.9 months, P = 0.142). Median PFS was not significantly different between patients who received osimertinib 80mg or 160mg once daily (2.5 vs. 1.3 months, P = 0.161), either with no significance when it used in fist-line setteing or bove (3.0 vs. 2.2 months, P = 0.639). CONCLUSION The unique insertion variant A763_Y764insFQEA and D770delinsGY might better respond to osimertinib than other ex20 ins subtypes. Osimertinib either 80 mg or 160 mg once daily showed less activity in Chinese NSCLC patients harboring diverse EGFR ex20 ins mutations.
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Affiliation(s)
- Guang-Jian Yang
- Department of Medical 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 Street South, Chaoyang District, Beijing, 100021, China
| | - Jun Li
- Center of Clinical Laboratory Medicine, Chinese People's Liberation Army General Hospital, No.28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Hai-Yan Xu
- Department of Comprehensive 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 Street South, Chaoyang District, Beijing, 100021, China
| | - Yang Sun
- PharmaBlock Sciences (Nanjing), Inc., Nanjing, 210032, China
| | - Liu Liu
- PharmaBlock Sciences (Nanjing), Inc., Nanjing, 210032, China
| | - Hong-Shuai Li
- Department of Medical 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 Street South, Chaoyang District, Beijing, 100021, China
| | - Lu Yang
- Department of Medical 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 Street South, Chaoyang District, Beijing, 100021, China
| | - Yuan Zhang
- Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Street South, Chaoyang District, Beijing, 100021, China
| | - Guo-Hui Li
- Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Street South, Chaoyang District, Beijing, 100021, China.
| | - Yan Wang
- Department of Medical 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 Street South, Chaoyang District, Beijing, 100021, China.
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Remon J, Hendriks LE, Cardona AF, Besse B. EGFR exon 20 insertions in advanced non-small cell lung cancer: A new history begins. Cancer Treat Rev 2020; 90:102105. [DOI: 10.1016/j.ctrv.2020.102105] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/03/2020] [Accepted: 09/06/2020] [Indexed: 12/13/2022]
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Wang Y, Li J, Zhou Y, Cao S, Ling X, Zhang Y, Nie W, Zhong H. Tumor genomics and response to chemotherapy in advanced non-small cell lung cancer with exon 20 insertion epidermal growth factor receptor mutations. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1297. [PMID: 33209877 PMCID: PMC7661900 DOI: 10.21037/atm-20-6172] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Background To characterize the effects of mutation subtypes and concomitant pathogenic mutations on progression-free survival (PFS) and overall survival (OS) in advanced non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) exon 20 insertion (ex20ins) mutations treated with chemotherapy. Methods We retrospectively found that patients who underwent genomic analysis from January 2017 to December 2019, and 101 patients with advanced EGFR ex20ins NSCLC were found. Binary logistic regression and Cox regression were used to determine how EGFR ex20ins mutation subtypes and concomitant mutations are associated with PFS and OS. Results A total of 8,348 patients were screened and 101 advanced EGFR ex20ins NSCLC patients were detected. Fifty-five patients who received chemotherapy (n=49) or TKIs (n=6) as first-line treatment were recorded for PFS and OS. PFS and OS were significantly longer in the platinum-based chemotherapy group (median PFS: 7.6 versus 5.6 months; P=0.001; median OS: 19.9 versus 7.4 months; P=0.027) than in the TKI group. Common mutations include Ala767_Val769dupAlaSerVal (A767_V769dupASV), Ser768_Asp770dupSerValAsp (S768_D770dupSVD) and Ala763_Tyr764insPheGlnGluAla (A763_Y764insFQEA). On binary logistic regression, common mutations (OR =17.04, 95% CI: 1.39–209.56; P=0.027) and number of concomitant mutations ≤1 (OR =34.67, 95% CI: 2.02–595.48; P=0.015) is significantly associated with durable clinical benefit (DCB). On multivariable analysis, common mutations (HR =0.26, 95% CI: 0.0.10–0.63; P=0.003) and the number of concomitant mutations ≤1 (HR =0.33, 95% CI: 0.15–0.73; P=0.006) were significantly associated with longer PFS. Conclusions Common mutations and the number of concomitant mutations ≤1 correlate with a biomarker that predicts benefit from chemotherapy and confers excellent prognosis for advanced patients with advanced EGFR ex20ins NSCLC. Patients with common mutations and with only one concomitant mutation had the greatest PFS and patients with uncommon mutations, and with over one concomitant mutation had the worst prognosis.
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Affiliation(s)
- Yue Wang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jingwen Li
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Zhou
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shuhui Cao
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xuxinyi Ling
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yao Zhang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Nie
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hua Zhong
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
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38
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Xu CW, Wang WX, Wang D, Wang QM, Pu XX, Zhu YC, Huang JH, Yu ZY, Cui ZL, Chen XH, Li JL, Fang Y, Wang H, Zhuang W, Lan SJ, Cai X, Zhang YB, Gao WB, Wang LP, She KL, Rao CZ, Zhou YF, Fang MY, Miao LY, Lei L, Lv TF, Song Y. Pemetrexed-based chemotherapy for non-small-cell lung cancer patients with EGFR exon 20 insertion mutation: a multicenter study. Transl Lung Cancer Res 2020; 9:1853-1861. [PMID: 33209607 PMCID: PMC7653161 DOI: 10.21037/tlcr-20-382] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Background Chemotherapy is the major choice for advanced non-small-cell lung cancer (NSCLC) patients with epidermal growth factor receptor exon 20 insertion (EGFR ex20ins). The efficacy of pemetrexed-based with other chemotherapy regimens and EGFR ex20ins subtypes in this population has not been well studied. Methods We screened patients with EGFR ex20ins by next-generation sequencing (NGS) from a large cohort. The clinicopathologic and medical information were collected in advanced NSCLC patients with EGFR ex20ins. We also compared the clinical outcomes among patients with different subtypes of EGFR ex20ins. Results We retrospectively collected 119 stage IIIB/IV NSCLC patients with EGFR ex20ins from 9142 NSCLC patients across China from June 2013 to December 2018. The subtypes of EGFR ex20ins included A767_V769dupASV (33/119, 27.73%), S768_D770dupSVD (19/119, 15.97%), N771_H773dupNPH (11/119, 9.24%), A763_Y764insFQEA (2/119, 1.68%) and others (54/119, 45.38%). A total of 64.7% (77/119) of patients received pemetrexed-based first-line chemotherapy and 13.45% (16/119) of patients received pemetrexed-based second-line chemotherapy. Pemetrexed-based chemo-treated patients had longer median progression-free survival (PFS) than patients without pemetrexed-based chemo-treated (5.5 vs. 3.0 months, P=0.0026). Survival data was available for 66 patients and the median overall survival (OS) was 24.7 months. Pemetrexed-based chemo-treated patients had longer OS tendency than patients without pemetrexed-based chemo-treated (25.0 vs. 19.6 months, P=0.0769). Patients harboring A767_V769dupASV had better OS than other subtypes of EGFR ex20ins but without statistical significance (P=0.0676). Multivariate analysis revealed that histological type of NSCLC and bone-metastasis before treatment were independent prognostic factors for OS in all patients after adjusting all characteristic and treatment factors (P<0.05). Conclusions To the best of our knowledge, it is the largest cohort study of advanced NSCLC patients with EGFR ex20ins across China. Pemetrexed-based treatment could have better control of disease than non-pemetrexed-based chemotherapies in this population. Furthermore, more effective agents are expected for patients harboring EGFR ex20ins.
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Affiliation(s)
- Chun-Wei Xu
- Department of Respiratory Medicine, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wen-Xian Wang
- Department of Medical Oncology, Chinese Academy of Sciences University Cancer Hospital (Zhejiang Cancer Hospital), Hangzhou China
| | - Dong Wang
- Department of Respiratory Medicine, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Qi-Ming Wang
- Department of Internal Medicine, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xing-Xiang Pu
- Department of Medical Oncology, Hunan Cancer Hospital, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - You-Cai Zhu
- Department of Thoracic Disease Center, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Jian-Hui Huang
- Department of Oncology, Lishui Municipal Central Hospital, Lishui, China
| | - Zong-Yang Yu
- Department of Medical Oncology, the 900th Hospital of the Joint Logistics Team (the Former Fuzhou General Hospital), Fujian Medical University, Fuzhou, China
| | - Zhao-Lei Cui
- Department of Clinical Laboratory, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Xiao-Hui Chen
- Department of Thoracic Surgery, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Jin-Luan Li
- Department of Radiotherapy, Xiamen Cancer Hospital, the First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Yong Fang
- Department of Oncology, Sir Run Run Shaw Hospital, Hangzhou, China
| | - Hong Wang
- Department of Lung Cancer, the Fifth Medical Center, General of PLA, Beijing, China
| | - Wu Zhuang
- Department of Medical Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Shi-Jie Lan
- Department of Oncology, the First Hospital of Jilin University, Changchun, China
| | - Xin Cai
- Department of Oncology, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yin-Bin Zhang
- Department of Oncology, the Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Wen-Bin Gao
- Department of Oncology, Shenzhen Luohu People's Hospital, Shenzhen Guangdong, China
| | - Li-Ping Wang
- Department of Oncology, Baotou Cancer Hospital, Baotou, China
| | - Ke-Lin She
- Department of Thoracic Surgery, the Central Hospital of Shaoyang City, Shaoyang, China
| | - Chuang-Zhou Rao
- Department of Radiation and Chemotherapy, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Yue-Fen Zhou
- Department of Oncology, Lishui Municipal Central Hospital, Lishui, China
| | - Mei-Yu Fang
- Department of Medical Oncology, Chinese Academy of Sciences University Cancer Hospital (Zhejiang Cancer Hospital), Hangzhou China
| | - Li-Yun Miao
- Department of Respiratory Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Lei Lei
- Department of Medical Oncology, Chinese Academy of Sciences University Cancer Hospital (Zhejiang Cancer Hospital), Hangzhou China
| | - Tang-Feng Lv
- Department of Respiratory Medicine, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yong Song
- Department of Respiratory Medicine, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Wu SG, Yu CJ, Yang JCH, Shih JY. The effectiveness of afatinib in patients with lung adenocarcinoma harboring complex epidermal growth factor receptor mutation. Ther Adv Med Oncol 2020; 12:1758835920946156. [PMID: 32843903 PMCID: PMC7418472 DOI: 10.1177/1758835920946156] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/07/2020] [Indexed: 12/15/2022] Open
Abstract
Background and aims: Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKIs) are effective against classical EGFR mutations in lung cancer. However, their effectiveness and the prognosis of lung cancer patients with complex EGFR mutations are not well delineated. Therefore, we aimed to investigate the treatment effectiveness of different EGFR TKIs in patients with complex EGFR mutations. Patients and methods: From 2005 to 2020, we collected lung adenocarcinoma tissue samples for EGFR mutation analysis using direct Sanger sequencing. Patients with EGFR mutations treated with EGFR TKIs as first-line treatment were enrolled. Clinical characteristics, EGFR mutation status, treatment response, progression-free survival (PFS), and overall survival (OS) were analyzed. Results: Among 2675 patients with EGFR mutations, 239 (8.9%) had complex EGFR mutations, of whom 125 received EGFR TKI treatment as first-line treatment. Multivariate analysis revealed that afatinib was a more favorable factor for PFS than gefitinib [hazard ratio (HR), 2.01; 95% confidence interval (CI), 1.11–3.62] and erlotinib (HR, 2.61; 95% CI, 1.31–5.22), especially in patients with uncommon mutation patterns. Afatinib treatment as first-line treatment was also associated with longer OS compared with erlotinib (HR, 2.48; 95% CI, 1.20–5.12). Classical mutation pattern was associated with longer PFS (p = 0.001) and OS (p = 0.020). Secondary T790M was detected in 22 of 52 (42.3%) patients who had re-biopsied tissue samples after acquiring resistance to EGFR TKIs. There was no significant difference in secondary T790M formation after acquired resistance to the three EGFR TKIs (p = 0.261). Furthermore, three (5.8%) patients had small-cell lung cancer transformation. Conclusion: Afatinib is an effective first-line treatment for patients with lung adenocarcinoma harboring complex EGFR mutations, especially those with uncommon mutation patterns.
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Affiliation(s)
- Shang-Gin Wu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei
| | - Chong-Jen Yu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei
| | - James Chih-Hsin Yang
- Department of Oncology, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei
| | - Jin-Yuan Shih
- Department of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei 100
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EGFR-A763_Y764insFQEA Is a Unique Exon 20 Insertion Mutation That Displays Sensitivity to Approved and In-Development Lung Cancer EGFR Tyrosine Kinase Inhibitors. JTO Clin Res Rep 2020; 1. [PMID: 34104899 PMCID: PMC8183979 DOI: 10.1016/j.jtocrr.2020.100051] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Introduction The EGFR-A763_Y764insFQEA is a unique exon 20 insertion mutation (∼5% to 6% of exon 20 insertions), which, at the structural and enzyme kinetic level, more closely resembles EGFR tyrosine kinase inhibitor (TKI)–sensitizing mutants, such as EGFR exon 19 indels and L858R. A limited number of preclinical models and clinical reports have studied the response of this mutant to EGFR TKIs. Methods We used models of EGFR-A763_Y764insFQEA and more typical EGFR exon 20 insertion mutations to probe representative first- (gefitinib, erlotinib), second- (afatinib), third-generation (osimertinib), and in-development EGFR exon 20–specific (poziotinib, mobocertinib [TAK-788]) TKIs. We also compiled outcomes of EGFR-A763_Y764insFQEA-mutated lung cancers treated with EGFR TKIs. Results Cells driven by EGFR-A763_Y764insFQEA were consistently sensitive to EGFR TKIs (as opposed to those driven by typical EGFR exon 20 insertions [A767_V769dupASV, D770_N771insSVD and H773_V774insH]), which were only inhibited by in-development EGFR TKIs at doses below those affecting wild-type EGFR. Most case instances (62.5% [95% confidence interval: 39%–86%], n = 16) with lung cancers harboring EGFR-A763_Y764insFQEA responded to clinically available EGFR TKIs (including osimertinib) and to in-development EGFR exon 20-specific TKIs (including mobocertinib) with prolonged periods of progression-free survival in some cases. Median overall survival for EGFR TKI–treated cases was 22 months (95% confidence interval: 16–25). Mechanisms of acquired TKI resistance of this mutant remain underreported, but do seem to align with those of common mutations. Conclusions To our knowledge, this is the largest report to confirm that the EGFR-A763_Y764insFQEA mutation is sensitive to clinically available first-, second-, third-generation, and in-development EGFR TKIs.
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