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  • Title: Coexistence of a novel NBEA-ALK, EML4-ALK double-fusion in a lung adenocarcinoma patient and response to alectinib: A case report.
    Author: Liang Q, Xu H, Liu Y, Zhang W, Sun C, Hu M, Zhu Y, Tan S, Xu X, Wang S, Liu L.
    Journal: Lung Cancer; 2021 Dec; 162():86-89. PubMed ID: 34763158.
    Abstract:
    OBJECTIVES: The echinoderm microtubule-associated protein-like 4 gene (EML4) and anaplastic lymphoma kinase gene (ALK) fusion is the most common ALK rearrangements in non-small cell lung cancer (NSCLC). Herein, we firstly report that coexistence of a novel Neurobeachin (NBEA)-ALK, EML4-ALK double-fusion is sensitive to alectinib. MATERIALS AND METHODS: Hematoxylin-eosin staining (HE), fluorescent in situ hybridization (FISH), and next-generation sequencing (NGS) was performed on the biopsy sample. RESULTS: The patient responded to alectinib as a second-line treatment and achieved stable disease for 11 months, without significant symptoms of toxicity. Significantly, the liquid biopsy also validated clinical benefit, with the disappearance of NBEA-ALK and EML4-ALK fusion variants. We also provided a comprehensive review of all 50 ALK fusion genes in NSCLC. CONCLUSION: This is the first report on one patient with a novel NBEA-ALK, EML4-ALK double-ALK fusion beneficial from alectinib. Alectinib may be a viable therapeutic option for NSCLC patients with double-ALK fusion, and liquid biopsy could dynamically monitor clinical curative effect.
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