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Rapid Disease Progression in a Patient with Advanced NSCLC Harboring a Germline MET Exon 14 Skipping Mutation: A Case Report

Authors Jiao Y, Fang C, Yang Y, Shao L, Huang Y, Sun Q, Dong Y

Received 5 January 2021

Accepted for publication 11 March 2021

Published 7 April 2021 Volume 2021:14 Pages 2417—2421

DOI https://doi.org/10.2147/OTT.S295542

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr William Cho


Yang Jiao,1,* Chen Fang,1,* Yuchen Yang,2 Lin Shao,2 Yi Huang,1 Qinying Sun,1 Yuchao Dong1

1Pulmonary and Critical Care Medicine, Changhai Hospital, The Naval Medical University, Guangzhou, People’s Republic of China; 2Burning Rock Biotech, Guangzhou, People’s Republic of China

*These authors contributed equally to this work

Correspondence: Yuchao Dong; Qinying Sun
Pulmonary and Critical Care Medicine, Changhai Hospital, The Naval Medical University, #168 Changhai Road, Yangpu District, Shanghai, 200433, People’s Republic of China
Email [email protected]; [email protected]

Abstract: MET exon 14 skipping variants have been identified as a novel type of oncogenic driver mutations in non-small-cell lung cancer (NSCLC), while the germline MET mutation, especially germline MET exon 14 skipping mutation rarely occurred in NSCLC. Herein, we present the first case of a 33-year-old NSCLC patient with a germline MET exon 14 skipping mutation, who also harbored a somatic EGFR exon 20 insertion. The patient was initially diagnosed with a stage IIB adenosquamous carcinoma. He underwent a thoracoscopic radical resection followed by four cycles of adjuvant chemotherapy but relapsed 2 months after completing the chemotherapy. Afatinib was then prescribed but disease progressed immediately. Subsequently, he received anlotinib but did not respond and died a month later with an overall survival of 9 months. Our case may provide an evidence for the pathogenicity of germline MET exon 14 skipping mutation in NSCLC and suggest it as an adverse prognostic factor.

Keywords: MET exon 14 skipping mutation, rare germline mutation, next-generation sequencing, NGS, lung adenosquamous carcinoma, rapid disease progression

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