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Boukansa S, Mouhrach I, El Agy F, El Bardai S, Bouguenouch L, Serraj M, Amara B, Ouadnouni Y, Smahi M, Alami B, Mellas N, Benbrahim Z, El Fatemi H. Clinicopathological and prognostic implications of EGFR mutations subtypes in Moroccan non-small cell lung cancer patients: A first report. PLoS One 2024; 19:e0298721. [PMID: 38837980 PMCID: PMC11152259 DOI: 10.1371/journal.pone.0298721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/29/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) remains a significant global health concern, with EGFR mutations playing a pivotal role in guiding treatment decisions. This prospective study investigated the prevalence and clinical implications of EGFR mutations in Moroccan NSCLC patients. METHODS A cohort of 302 NSCLC patients was analyzed for EGFR mutations using multiple techniques. Demographic, clinical, and pathological characteristics were assessed, and overall survival (OS) outcomes were compared among different EGFR mutation subtypes. RESULTS EGFR mutations were present in 23.5% of patients, with common mutations (81.69%) dominating. Common mutations showed strong associations with female gender and non-smoking status, while rare mutations were associated with a positive smoking history. Patients with EGFR mutations receiving tyrosine kinase inhibitors (TKIs) had significantly improved OS compared to wild-type EGFR patients. Notably, patients with common EGFR mutations had the highest OS, while those with rare mutations had a shorter survival period, albeit not statistically significant. CONCLUSION This study highlights the relevance of EGFR mutation status in NSCLC patients, particularly in therapeutic decision-making. The association between smoking history and rare mutations suggests the need for tailored approaches. The survival advantage for patients with common EGFR mutations underscores the significance of personalized treatment strategies.
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Affiliation(s)
- Sara Boukansa
- Laboratory of Biomedical and Translational Research, Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdellah University, Fez, Morocco
- Laboratory of Anatomic Pathology and Molecular Pathology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Ismail Mouhrach
- Unit of Medical Genetics and Oncogenetics, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Fatima El Agy
- Laboratory of Biomedical and Translational Research, Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdellah University, Fez, Morocco
- Laboratory of Anatomic Pathology and Molecular Pathology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Sanae El Bardai
- Laboratory of Anatomic Pathology and Molecular Pathology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Laila Bouguenouch
- Unit of Medical Genetics and Oncogenetics, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Mounia Serraj
- Department of Pneumology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Bouchra Amara
- Department of Pneumology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Yassine Ouadnouni
- Department of Thoracic Surgery, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Mohamed Smahi
- Department of Thoracic Surgery, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Badreeddine Alami
- Department of Radiology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Nawfel Mellas
- Department of Oncology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Zineb Benbrahim
- Department of Oncology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Hinde El Fatemi
- Laboratory of Biomedical and Translational Research, Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdellah University, Fez, Morocco
- Laboratory of Anatomic Pathology and Molecular Pathology, University Hospital Hassan II, Sidi Mohamed Ben Abdellah University, Fez, Morocco
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Lim SM, Fujino T, Kim C, Lee G, Lee YH, Kim DW, Ahn JS, Mitsudomi T, Jin T, Lee SY. BBT-176, a Novel Fourth-Generation Tyrosine Kinase Inhibitor for Osimertinib-Resistant EGFR Mutations in Non-Small Cell Lung Cancer. Clin Cancer Res 2023; 29:3004-3016. [PMID: 37249619 PMCID: PMC10425724 DOI: 10.1158/1078-0432.ccr-22-3901] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/14/2023] [Accepted: 05/26/2023] [Indexed: 05/31/2023]
Abstract
PURPOSE Resistance to third-generation EGFR inhibitors including osimertinib arises in part from the C797S mutation in EGFR. Currently, no targeted treatment option is available for these patients. We have developed a new EGFR tyrosine kinase inhibitor (TKI), BBT-176, targeting the C797S mutation. PATIENTS AND METHODS Recombinant EGFR proteins and Ba/F3 cell lines, patient-derived cells, and patient-derived xenografts expressing mutant EGFRs were used to test the inhibitory potency and the anticancer efficacy of BBT-176 both in vitro and in vivo. Patient case data are also available from an ongoing phase I clinical trial (NCT04820023). RESULTS The half maximal inhibitory concentration (IC50) of BBT-176 against EGFR 19Del/C797S, EGFR 19Del/T790M/C797S, and EGFR L858R/C797S proteins were measured at 4.36, 1.79, and 5.35 nmol/L, respectively (vs. 304.39, 124.82, and 573.72 nmol/L, for osimertinib). IC50 values of BBT-176 against Ba/F3 cells expressing EGFR 19Del/C797S, EGFR 19Del/T790M/C797S, EGFR L858R/C797S, and EGFR L858R/T790M/C797S were 42, 49, 183, and 202 nmol/L, respectively (vs. 869, 1,134, 2,799, and 2,685 nmol/L for osimertinib). N-ethyl-N-nitrosourea mutagenesis suggested that BBT-176 treatment does not introduce any secondary mutations in the EGFR gene but increases EGFR expression levels. Combined with the EGFR antibody cetuximab, BBT-176 effectively suppressed the growth of BBT-176-resistant clones. BBT-176 strongly inhibited the tumor growth, and in some conditions induced tumor regression in mouse models. In the clinical trial, two patients harboring EGFR 19Del/T790M/C797S in blood showed tumor shrinkage and radiologic improvements. CONCLUSIONS BBT-176 is a fourth-generation EGFR inhibitor showing promising preclinical activity against NSCLC resistant to current EGFR TKI, with early clinical efficacy and safety.
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Affiliation(s)
- Sun Min Lim
- Department of Internal Medicine, Yonsei University, Seoul, Republic of Korea (South)
| | - Toshio Fujino
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Chulwon Kim
- Bridge Biotherapeutics Inc., Seongnam-si, Republic of Korea (South)
| | - Gwanghee Lee
- Boostimmune, Inc., Seoul, Republic of Korea (South)
| | - Yong-Hee Lee
- Bridge Biotherapeutics Inc., Newton, Massachusetts
| | - Dong-Wan Kim
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Hospital, Seoul, Republic of Korea (South)
| | - Jin Seok Ahn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, Republic of Korea (South)
| | - Tetsuya Mitsudomi
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Taiguang Jin
- Bridge Biotherapeutics Inc., Newton, Massachusetts
| | - Sang-Yoon Lee
- Bridge Biotherapeutics Inc., Seongnam-si, Republic of Korea (South)
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3
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Grabe T, Jeyakumar K, Niggenaber J, Schulz T, Koska S, Kleinbölting S, Beck ME, Müller MP, Rauh D. Addressing the Osimertinib Resistance Mutation EGFR-L858R/C797S with Reversible Aminopyrimidines. ACS Med Chem Lett 2023; 14:591-598. [PMID: 37197473 PMCID: PMC10184309 DOI: 10.1021/acsmedchemlett.2c00514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 04/13/2023] [Indexed: 05/19/2023] Open
Abstract
Drug resistance mutations emerging during the treatment of non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) inhibitors represent a major challenge in personalized cancer treatment and require constant development of new inhibitors. For the covalent irreversible EGFR inhibitor osimertinib, the predominant resistance mechanism is the acquired C797S mutation, which abolishes the covalent anchor point and thus results in a dramatic loss in potency. In this study, we present next-generation reversible EGFR inhibitors with the potential to overcome this EGFR-C797S resistance mutation. For this, we combined the reversible methylindole-aminopyrimidine scaffold known from osimertinib with the affinity driving isopropyl ester of mobocertinib. By occupying the hydrophobic back pocket, we were able to generate reversible inhibitors with subnanomolar activity against EGFR-L858R/C797S and EGFR-L858R/T790M/C797S with cellular activity on EGFR-L858R/C797S dependent Ba/F3 cells. Additionally, we were able to resolve cocrystal structures of these reversible aminopyrimidines, which will guide further inhibitor design toward C797S-mutated EGFR.
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Affiliation(s)
- Tobias Grabe
- Department of Chemistry and
Chemical Biology, TU Dortmund University
and Drug Discovery Hub Dortmund (DDHD) am Zentrum für Integrierte
Wirkstoffforschung (ZIW), Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | | | | | - Tom Schulz
- Department of Chemistry and
Chemical Biology, TU Dortmund University
and Drug Discovery Hub Dortmund (DDHD) am Zentrum für Integrierte
Wirkstoffforschung (ZIW), Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Sandra Koska
- Department of Chemistry and
Chemical Biology, TU Dortmund University
and Drug Discovery Hub Dortmund (DDHD) am Zentrum für Integrierte
Wirkstoffforschung (ZIW), Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Silke Kleinbölting
- Department of Chemistry and
Chemical Biology, TU Dortmund University
and Drug Discovery Hub Dortmund (DDHD) am Zentrum für Integrierte
Wirkstoffforschung (ZIW), Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | | | - Matthias P. Müller
- Department of Chemistry and
Chemical Biology, TU Dortmund University
and Drug Discovery Hub Dortmund (DDHD) am Zentrum für Integrierte
Wirkstoffforschung (ZIW), Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Daniel Rauh
- Department of Chemistry and
Chemical Biology, TU Dortmund University
and Drug Discovery Hub Dortmund (DDHD) am Zentrum für Integrierte
Wirkstoffforschung (ZIW), Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
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Hartmaier RJ, Markovets AA, Ahn MJ, Sequist LV, Han JY, Cho BC, Yu HA, Kim SW, Yang JCH, Lee JS, Su WC, Kowalski DM, Orlov S, Ren S, Frewer P, Ou X, Cross DAE, Kurian N, Cantarini M, Jänne PA. Osimertinib + Savolitinib to Overcome Acquired MET-Mediated Resistance in Epidermal Growth Factor Receptor-Mutated, MET-Amplified Non-Small Cell Lung Cancer: TATTON. Cancer Discov 2023; 13:98-113. [PMID: 36264123 PMCID: PMC9827108 DOI: 10.1158/2159-8290.cd-22-0586] [Citation(s) in RCA: 46] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 09/15/2022] [Accepted: 10/17/2022] [Indexed: 01/12/2023]
Abstract
MET-inhibitor and EGFR tyrosine kinase inhibitor (EGFR-TKI) combination therapy could overcome acquired MET-mediated osimertinib resistance. We present the final phase Ib TATTON (NCT02143466) analysis (Part B, n = 138/Part D, n = 42) assessing oral savolitinib 600 mg/300 mg once daily (q.d.) + osimertinib 80 mg q.d. in patients with MET-amplified, EGFR-mutated (EGFRm) advanced non-small cell lung cancer (NSCLC) and progression on prior EGFR-TKI. An acceptable safety profile was observed. In Parts B and D, respectively, objective response rates were 33% to 67% and 62%, and median progression-free survival (PFS) was 5.5 to 11.1 months and 9.0 months. Increased antitumor activity may occur with MET copy number ≥10. EGFRm circulating tumor DNA clearance on treatment predicted longer PFS in patients with detectable baseline ctDNA, while acquired resistance mechanisms to osimertinib + savolitinib were mediated by MET, EGFR, or KRAS alterations. SIGNIFICANCE The savolitinib + osimertinib combination represents a promising therapy in patients with MET-amplified/overexpressed, EGFRm advanced NSCLC with disease progression on a prior EGFR-TKI. Acquired resistance mechanisms to this combination include those via MET, EGFR, and KRAS. On-treatment ctDNA dynamics can predict clinical outcomes and may provide an opportunity to inform earlier decision-making. This article is highlighted in the In This Issue feature, p. 1.
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Affiliation(s)
- Ryan J Hartmaier
- Translational Medicine, Research and Early Development, Oncology R&D, AstraZeneca, Boston, Massachusetts
| | - Aleksandra A Markovets
- Translational Medicine, Research and Early Development, Oncology R&D, AstraZeneca, Boston, Massachusetts
| | - Myung Ju Ahn
- Samsung Medical Center, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Lecia V Sequist
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Ji-Youn Han
- Center for Lung Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Byoung Chul Cho
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Helena A Yu
- Department of Medical Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sang-We Kim
- Department of Oncology, University of Uslan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - James Chih-Hsin Yang
- Department of Medical Oncology, National Taiwan University Cancer Center, Taipei City, Taiwan
| | - Jong-Seok Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul, Republic of Korea
| | - Wu-Chou Su
- Department of Internal Medicine, National Cheng Kung University Hospital, Tainan City, Taiwan
| | - Dariusz M Kowalski
- Department of Lung Cancer and Thoracic Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Sergey Orlov
- BioEq, LLC, Saint Petersburg, Russian Federation
| | - Song Ren
- Clinical Pharmacology and Quantitative Pharmacology, AstraZeneca, Gaithersburg, Maryland
| | - Paul Frewer
- Oncology Biometrics, Oncology R&D, AstraZeneca, Cambridge, United Kingdom
| | - Xiaoling Ou
- Oncology Biometrics, Oncology R&D, AstraZeneca, Cambridge, United Kingdom
| | - Darren A E Cross
- Oncology Late Development, Oncology R&D, AstraZeneca, Cambridge, United Kingdom
| | - Nisha Kurian
- Precision Medicine and Biosamples, Oncology R&D, AstraZeneca, Boston, Massachusetts
| | - Mireille Cantarini
- Oncology Late Development, Oncology R&D, AstraZeneca, Cambridge, United Kingdom
| | - Pasi A Jänne
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
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Song B, Ge H, Pu C, Li N. GLP2-GLP2R signal affects the viability and EGFR-TKIs sensitivity of PC9 and HCC827 cells. BMC Pulm Med 2022; 22:36. [PMID: 35027025 PMCID: PMC8756716 DOI: 10.1186/s12890-021-01800-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 12/01/2021] [Indexed: 12/09/2022] Open
Abstract
Abstract
Background
The resistance to epidermal growth factor receptor (EGFR)- tyrosine kinase inhibitors (TKIs) therapy is currently the major clinical challenge in the treatment of lung cancer. This study aims to reveal the role of glucagon-like peptide (GLP) 2 and GLP-2 receptor (GLP2R) signaling on the EGFR-TKIs and cisplatin resistance of lung cancer cells.
Methods
The common differentially expressed genes in PC9 and HCC827 cells that were individually resistant to one of the three EGFR-TKIs (dacomitinib, osimertinib and afatinib) were screened. The data were from GSE168043 and GSE163913. The expression of GLP2R in drug-resistant cells was detected by western blot. The effect of GLP2R expression down- or up-regulation on resistance to dacomitinib, osimertinib, afatinib or cisplatin was measured by CCK-8 and flow cytometry assays. The long-acting analog of GLP-2, teduglutide, treated the parental cells.
Results
A total of 143 common differentially expressed genes were identified. Compared with the parent cells, the GLP2R expression in drug-resistant cell lines was significantly up-regulated. The exogenous expression of GLP2R in parental cells enhanced cell viability, while knockdown of GLP2R levels in drug-resistant cell lines inhibited cell viability. In addition, teduglutide treatment also enhanced the viability of lung cancer cells.
Conclusion
GLP2-GLP2R signal may change the sensitivity of cells to EGFR-TKIs and cisplatin. The development of GLP-2 or GLP2R inhibitors may be beneficial to the clinical treatment of lung cancer.
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Tang X, Li Y, Yan WF, Qian WL, Pang T, Gong YL, Yang ZG. Machine Learning-Based CT Radiomics Analysis for Prognostic Prediction in Metastatic Non-Small Cell Lung Cancer Patients With EGFR-T790M Mutation Receiving Third-Generation EGFR-TKI Osimertinib Treatment. Front Oncol 2021; 11:719919. [PMID: 34660285 PMCID: PMC8511497 DOI: 10.3389/fonc.2021.719919] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 09/13/2021] [Indexed: 02/05/2023] Open
Abstract
Background and Purpose As a third-generation EGFR tyrosine kinase inhibitor (TKI), osimertinib is approved for treating advanced non-small cell lung cancer (NSCLC) patients with EGFR-T790M mutation after progression on first- or second-generation EGFR-TKIs such as gefitinib, erlotinib and afatinib. We aim at exploring the feasibility and effectiveness of using radiomic features from chest CT scan to predict the prognosis of metastatic non-small cell lung cancer (NSCLC) patients with EGFR-T790M mutation receiving second-line osimertinib therapy. Methods Contrast-enhanced and unenhanced chest CT images before osimertinib treatment were collected from 201 and 273 metastatic NSCLC patients with EGFR-T790M mutation, respectively. Radiomic features were extracted from the volume of interest. LASSO regression was used to preliminarily evaluate the prognostic values of different radiomic features. We then performed machine learning-based analyses including random forest (RF), support vector machine (SVM), stepwise regression (SR) and LASSO regression with 5-fold cross-validation (CV) to establish the optimal radiomic model for predicting the progression-free survival (PFS) of osimertinib treatment. Finally, a combined clinical-radiomic model was developed and validated using the concordance index (C-index), decision-curve analysis (DCA) and calibration curve analysis. Results Disease progression occurred in 174/273 (63.7%) cases. CT morphological features had no ability in predicting patients’ prognosis in osimertinib treatment. Univariate COX regression followed by LASSO regression analyses identified 23 and 6 radiomic features from the contrast-enhanced and unenhanced CT with prognostic value, respectively. The 23 contrast-enhanced radiomic features were further used to construct radiomic models using different machine learning strategies. Radiomic model built by SR exhibited superior predictive accuracy than RF, SVR or LASSO model (mean C-index of the 5-fold CV: 0.660 vs. 0.560 vs. 0.598 vs. 0.590). Adding the SR radiomic model to the clinical model could remarkably strengthen the C-index of the latter from 0.672 to 0.755. DCA and calibration curve analyses also demonstrated good performance of the combined clinical-radiomic model. Conclusions Radiomic features extracted from the contrast-enhanced chest CT could be used to evaluate metastatic NSCLC patients’ prognosis in osimertinib treatment. Prognostic models combing both radiomic features and clinical factors had a great performance in predicting patients’ outcomes.
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Affiliation(s)
- Xin Tang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuan Li
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Wei-Feng Yan
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Wen-Lei Qian
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Tong Pang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - You-Ling Gong
- Department of Thoracic Oncology and State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Zhi-Gang Yang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
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Lim JU. Overcoming Osimertinib Resistance in Advanced Non-small Cell Lung Cancer. Clin Oncol (R Coll Radiol) 2021; 33:619-626. [PMID: 34364740 DOI: 10.1016/j.clon.2021.07.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/04/2021] [Accepted: 07/22/2021] [Indexed: 01/10/2023]
Abstract
Osimertinib is used as a first-line treatment for metastatic non-small cell lung cancer with positive epidermal growth factor receptor mutations based on the results of the FLAURA trial. However, as with any other epidermal growth factor receptor tyrosine kinase inhibitor, resistance also develops for osimertinib. Various genetic aberrations associated with the molecular heterogeneity of cancer cells contribute to osimertinib resistance. It is also important to choose an appropriate subsequent treatment for osimertinib-resistant non-small cell lung cancer. In this overview, we discuss the underlying mechanisms of osimertinib resistance and the efficacy of possible subsequent treatment measures.
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Affiliation(s)
- J U Lim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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