Coexistence of a novel CCNY-ALK and ATIC-ALK double-fusion in one patient with ALK-positive NSCLC and response to crizotinib: a case report

However, the concurrent two ALK rearrangements within the same patient have rarely previously been reported. Here, we describe a novel CCNY-ALK (C1:A20) and ATIC-ALK (A7:A20), coexisting in the same case with poorly differentiated NSCLC and providing evidence of its sensitivity to ALK inhibitors. The newly identified rearrangement partners can be added to the list of ALK rearrangements that occurred in ALK-positive NSCLC, as it could lead to prolonged disease control. Also, while different ALK rearrangement variants might bring differing clinical outcomes, we discuss the impact of the co-mutations of these two ALK rearrangements on the sensitivity to ALK inhibitors. However, the impact of co-mutations on the pathogenesis of NSCLC should be further studied to supply more theoretical insight that co-mutations present for personalized anti-cancer therapy. READ ARTICLE

Translational Lung Cancer Research DOI: 10.21037/tlcr-20-1049

Authors: Xuan Wu, Hanqiong Zhou, Zhen He, Zhe Zhang, Wen Feng, Jiuzhou Zhao3, Haiyang Chen, Shuai Wang, Wei Wang, Qiming Wang