Anticancer Drugs 2023 Jun 01;345:699-706. doi: 10.1097/CAD.0000000000001432.

Neoadjuvant target therapy with ensartinib in lung adenocarcinoma with EML4-ALK fusion variant: a case report and literature review.

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Although neoadjuvant target therapy has been used to treat patients with non-small-cell lung cancer (NSCLC), most of these patients have mutations in the epidermal growth factor receptor (EGFR) gene. Few patients to date have received neoadjuvant target therapy for NSCLC containing variants in genes encoding anaplastic lymphoma kinase-tyrosine kinase inhibitors (ALK-TKIs). Herein, we present a 51-year-old man with a lung mass in the left lower lobe with enlarged mediastinal lymph nodes. He was diagnosed with NSCLC after needle lung biopsy, with next-generation sequencing showing an echinoderm microtubule-associated protein-like 4 gene-anaplastic lymphoma kinase (EML4-ALK) fusion variant. The patient received neoadjuvant ensartinib, a second-generation ALK-TKI, for 5 months, followed by successful lobectomy through uniportal video-assisted thoracic surgery and adjuvant ensartinib. To our knowledge, few patients with ALK-positive NSCLC had received neoadjuvant treatment with ensartinib. Findings in this patient may widen indications for neoadjuvant target therapy in the treatment of resectable stage II-IIIA ALK-positive NSCLC.

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