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Patients harboring EGFR mutation after primary resistance to crizotinib and response to EGFR-tyrosine kinase inhibitor

Authors Wang W, Jiang X, Song Z, Zhang Y

Received 25 September 2015

Accepted for publication 25 November 2015

Published 8 January 2016 Volume 2016:9 Pages 211—215


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Professor Daniele Santini

Wenxian Wang,1 Xiaowen Jiang,1 Zhengbo Song,1,2 Yiping Zhang1,2

1Department of Chemotherapy, Zhejiang Cancer Hospital, 2Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Hangzhou, Zhejiang, People’s Republic of China

Abstract: Anaplastic lymphoma kinase (ALK) rearrangement lung cancer responds to ALK tyrosine kinase inhibitors. It is known that many cases ultimately acquired resistance to crizotinib. However, a case of primary resistance is rare. We present a case of harboring exon 19 deletion in epidermal growth factor receptor in ALK rearranged lung adenocarcinoma, who experienced a partial tumor response to icotinib after failure with crizotinib therapy and chemotherapy. Considering the partial response, we conclude that it is important to find the cause of resistance to crizotinib. We detected gene mutations with plasma by the next-generation sequencing; the next-generation sequencing demonstrates an attractive system to identify mutations improving the outcome of patients with a deadly disease.

Keywords: non-small cell lung cancer, anaplastic lymphoma kinase, crizotinib, epidermal growth factor receptor

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