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Case Report Open Access

Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report

  • Authors:
    • Yawen Luo
    • Lin Lin
    • Chen Shufeng
    • Chun Liu
    • Zhuanghua Li
    • Kejun Liu
  • View Affiliations / Copyright

    Affiliations: Department of Oncology, The First Affiliated Hospital of Shenzhen University, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China, Department of Internal Medicine‑Oncology, Dongguan Wangniudun Hospital, Dongguan, Guangdong 518131, P.R. China, Dongguan Institute of Clinical Cancer Research, Dongguan Key Laboratory of Precision Diagnosis and Treatment for Tumors, The Tenth Affiliated Hospital of Southern Medical University, Dongguan People's Hospital, Dongguan, Guangdong 518131, P.R. China
    Copyright: © Luo et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 501
    |
    Published online on: August 16, 2024
       https://doi.org/10.3892/ol.2024.14634
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Abstract

Epidermal growth factor receptor (EGFR) mutations have emerged as the most well‑studied oncogenic alterations in advanced non‑small cell lung cancer. The presence of single common or rare EGFR mutations and extra complex EGFR mutations correlates with the response sensitivity to EGFR tyrosine kinase inhibitors. Therefore, given the lack of evidence for the emergence of rare EGFR mutation types, the pathogenic mechanisms of uncommon EGFR mutations and the optimal treatment strategies remain to be explored further. The present study describes the case of a patient diagnosed with lung adenocarcinoma (LUAD) carrying two rare EGFR exon 18 indel/G719C and exon 19 L747S mutations, in which persistent lesion shrinkage was exhibited within 16 months of osimertinib treatment. Given the paucity of clinical trials for the treatment of LUAD harboring complex EGER mutations, the present detailed case description may provide clinicians with effective clinical experience in treating patients.
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Copy and paste a formatted citation
Spandidos Publications style
Luo Y, Lin L, Shufeng C, Liu C, Li Z and Liu K: Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report. Oncol Lett 28: 501, 2024.
APA
Luo, Y., Lin, L., Shufeng, C., Liu, C., Li, Z., & Liu, K. (2024). Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report. Oncology Letters, 28, 501. https://doi.org/10.3892/ol.2024.14634
MLA
Luo, Y., Lin, L., Shufeng, C., Liu, C., Li, Z., Liu, K."Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report". Oncology Letters 28.5 (2024): 501.
Chicago
Luo, Y., Lin, L., Shufeng, C., Liu, C., Li, Z., Liu, K."Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report". Oncology Letters 28, no. 5 (2024): 501. https://doi.org/10.3892/ol.2024.14634
Copy and paste a formatted citation
x
Spandidos Publications style
Luo Y, Lin L, Shufeng C, Liu C, Li Z and Liu K: Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report. Oncol Lett 28: 501, 2024.
APA
Luo, Y., Lin, L., Shufeng, C., Liu, C., Li, Z., & Liu, K. (2024). Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report. Oncology Letters, 28, 501. https://doi.org/10.3892/ol.2024.14634
MLA
Luo, Y., Lin, L., Shufeng, C., Liu, C., Li, Z., Liu, K."Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report". Oncology Letters 28.5 (2024): 501.
Chicago
Luo, Y., Lin, L., Shufeng, C., Liu, C., Li, Z., Liu, K."Osimertinib treatment response in a patient with lung adenocarcinoma harboring two rare EGFR mutations: A case report". Oncology Letters 28, no. 5 (2024): 501. https://doi.org/10.3892/ol.2024.14634
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