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2 "Seong-Hoon Yoon"
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Lung and Thoracic cancer
Real-World Study of Osimertinib in Korean Patients with Epidermal Growth Factor Receptor T790M Mutation–Positive Non–Small Cell Lung Cancer
Jang Ho Lee, Eun Young Kim, Cheol-Kyu Park, Shin Yup Lee, Min ki Lee, Seong-Hoon Yoon, Jeong Eun Lee, Sang Hoon Lee, Seung Joon Kim, Sung Yong Lee, Jun Hyeok Lim, Tae-Won Jang, Seung Hun Jang, Kye Young Lee, Seung Hyeun Lee, Sei Hoon Yang, Dong Won Park, Chan Kwon Park, Hye Seon Kang, Chang Dong Yeo, Chang-Min Choi, Jae Cheol Lee
Cancer Res Treat. 2023;55(1):112-122.   Published online July 19, 2022
DOI: https://doi.org/10.4143/crt.2022.381
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Although osimertinib is the standard-of-care treatment of epidermal growth factor receptor (EGFR) T790M mutation–positive non–small cell lung cancer, real-world evidence on the efficacy of osimertinib is not enough to reflect the complexity of the entire course of treatment. Herein, we report on the use of osimertinib in patients with EGFR T790M mutation–positive non–small cell lung cancer who had previously received EGFR tyrosine kinase inhibitor (TKI) treatment in Korea.
Materials and Methods
Patients with confirmed EGFR T790M after disease progression of prior EGFR-TKI were enrolled and administered osimertinib 80 mg daily. The primary effectiveness outcome was progression-free survival, with time-to-treatment discontinuation, treatment and adverse effects leading to treatment discontinuation, and overall survival being the secondary endpoints.
Results
A total of 558 individuals were enrolled, and 55.2% had investigator-assessed responses. The median progression-free survival was 14.2 months (95% confidence interval [CI], 13.0 to 16.4), and the median time-to-treatment discontinuation was 15.0 months (95% CI, 14.1 to 15.9). The median overall survival was 36.7 months (95% CI, 30.9 to not reached). The benefit with osimertinib was consistent regardless of the age, sex, smoking history, and primary EGFR mutation subtype. However, hepatic metastases at the time of diagnosis, the presence of plasma EGFR T790M, and the shorter duration of prior EGFR-TKI treatment were poor predictors of osimertinib treatment. Ten patients (1.8%), including three with pneumonitis, had to discontinue osimertinib due to severe adverse effects.
Conclusion
Osimertinib demonstrated its clinical effectiveness and survival benefit for EGFR T790M mutation–positive in Korean patients with no new safety signals.

Citations

Citations to this article as recorded by  
  • The importance of re-biopsy in the era of molecular therapy for lung cancer
    Nensi Lalic, Daliborka Bursac, Marko Bojovic, Marko Nemet, Ivan Ergelasev
    Srpski arhiv za celokupno lekarstvo.2024; 152(3-4): 209.     CrossRef
  • Detection of EGFR exon 20 insertion mutations in non-small cell lung cancer: implications for consistent nomenclature in precision medicine
    Jieun Park, Boram Lee, Ji-Young Song, Minjung Sung, Mi Jeong Kwon, Chae Rin Kim, Sangjin Lee, Young Kee Shin, Yoon-La Choi
    Pathology.2024; 56(5): 653.     CrossRef
  • Real‐world study of lazertinib as second‐line or greater treatment in advanced non‐small cell lung cancer
    Jeong Uk Lim, Kyuhwan Kim, Kyu Yean Kim, Hye Seon Kang, Ah. Young Shin, Chang Dong Yeo, Sung Kyoung Kim, Chan Kwon Park, Sang Haak Lee, Seung Joon Kim
    Thoracic Cancer.2024; 15(19): 1513.     CrossRef
  • Comparative effectiveness of lazertinib in patients with EGFR T790M-positive non-small-cell lung cancer using a real-world external control
    Ha-Lim Jeon, Meesong Kwak, Sohee Kim, Hye-Yeon Yu, Ju-Young Shin, Hyun Ae Jung
    Scientific Reports.2024;[Epub]     CrossRef
  • A Randomized, Multi-Center, Open Label Study to Compare the Safety and Efficacy between Afatinib Monotherapy and Combination Therapy with HAD-B1 for the Locally Advanced or Metastatic NSCLC Patients with EGFR Mutations
    Eunbin Kwag, Soo-Dam Kim, Seong-Hoon Shin, Chulho Oak, So-Jung Park, Jun-Yong Choi, Seong Hoon Yoon, In-Cheol Kang, Mi-Kyung Jeong, Hyun Woo Lee, Sun-Hwi Bang, Ji Woong Son, Sanghun Lee, Seung Joon Kim, Hwa-Seung Yoo
    Integrative Cancer Therapies.2024;[Epub]     CrossRef
  • Clinical utility of repeated rebiopsy for EGFR T790M mutation detection in non-small cell lung cancer
    Eun Hye Lee, Se Hyun Kwak, Kyeong Yeon Kim, Chi Young Kim, Sang Hoon Lee, Seok-Jae Heo, Yoon Soo Chang, Eun Young Kim
    Frontiers in Oncology.2024;[Epub]     CrossRef
  • Real-world evidence of osimertinib in Chinese patients with EGFR T790M-positive non-small cell lung cancer: a subgroup analysis from ASTRIS study
    Qing Zhou, He-Long Zhang, Li-Yan Jiang, Yuan-Kai Shi, Yuan Chen, Jin-Ming Yu, Cai-Cun Zhou, Yong He, Yan-Ping Hu, Zong-An Liang, Yue-Yin Pan, Wen-Lei Zhuo, Yong Song, Gang Wu, Gong-Yan Chen, You Lu, Cui-Ying Zhang, Yi-Ping Zhang, Ying Cheng, Shun Lu, Chan
    Journal of Cancer Research and Clinical Oncology.2023; 149(12): 10771.     CrossRef
  • 6,829 View
  • 324 Download
  • 9 Web of Science
  • 7 Crossref
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Peptide Nucleic Acid Clamping Versus Direct Sequencing for the Detection of EGFR Gene Mutation in Patients with Non-small Cell Lung Cancer
Seong-Hoon Yoon, Yoo-Duk Choi, In-Jae Oh, Kyu-Sik Kim, Hayoung Choi, Jinsun Chang, Hong-Joon Shin, Cheol-Kyu Park, Young-Chul Kim
Cancer Res Treat. 2015;47(4):661-669.   Published online February 23, 2015
DOI: https://doi.org/10.4143/crt.2014.282
AbstractAbstract PDFPubReaderePub
Purpose
Direct sequencing (DS) is the standard method for detection of epidermal growth factor receptor (EGFR) gene mutation in non-small cell lung cancer (NSCLC); however, low detection sensitivity is a problem. The aim of this study is to demonstrate higher detection rate of EGFR gene mutation with peptide nucleic acid (PNA) clamping compared with DS. Materials and Methods This is a single arm, prospective study for patients with stage IIIB/IV or relapsed NSCLC. Using tumor DNA from 138 patients, both DS and PNA clamping for EGFR gene in exon 18, 19, 20, and 21 were performed. Discrepant results between the two methods were verified using Cobas and a mutant enrichment based next generation sequencing (NGS). Patients with activating mutations were treated with EGFR tyrosine kinase inhibitor (EGFR-TKI, gefitinib, or erlotinib) as first line treatment.
Results
Of 138 paired test sets, 24 (17.4%) and 45 (32.6%) cases with activating mutations were detected by DS and PNA clamping, respectively. The difference of detection rate between the two methods was 15.2% (95% confidence interval, 8.7% to 17.8%; p < 0.001). Between the two methods, 25 cases showed discrepant results (n=23, PNA+/DS–; n=2, PNA–/DS+). Mutations were confirmed by Cobas or NGS in 22 of 23 PNA+/DS– cases. The response rates to EGFR-TKI were 72.2% in the PNA+/DS+ group and 85.0% in the PNA+/DS– group. Conclusion PNA clamping showed a significantly higher detection rate of EGFR gene mutation compared with DS. Higher sensitivity of PNA clamping was not compromised by the loss of predictive power of response to EGFR-TKI.

Citations

Citations to this article as recorded by  
  • Highly Sensitive Enrichment of Low-Frequency Variants by Hairpin Competition Amplification
    Zhaocheng Liu, Rui Zhang, Xixi Jiang, Li Ji, Ping Sun, Yong Ji, Yu Zhang, Yan Ding, Koukou Li, Zhening Pu, Fengsheng Zhou, Jian Zou
    Analytical Chemistry.2023; 95(32): 12015.     CrossRef
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    Gurpreet Singh, Vikramdeep Monga
    Bioorganic Chemistry.2023; 141: 106860.     CrossRef
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    Thoracic Cancer.2021; 12(10): 1598.     CrossRef
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    Tae‐Ok Kim, In‐Jae Oh, Bo Gun Kho, Ha Young Park, Jin Sun Chang, Cheol‐Kyu Park, Hong‐Joon Shin, Jung‐Hwan Lim, Yong‐Soo Kwon, Yu‐Il Kim, Sung‐Chul Lim, Young‐Chul Kim, Yoo‐Duk Choi
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  • 12,774 View
  • 174 Download
  • 20 Web of Science
  • 22 Crossref
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