Abstract:Background: CLIP1-LTK was recently discovered as a novel oncogenic gene fusion in non-small cell lung cancer (NSCLC). Lorlatinib, an ALK/ROS1 inhibitor, can inhibit CLIP1-LTK constitutive kinase activity, and showed dramatic and promising efficacy in a patient with NSCLC harboring CLIP1-LTK fusion. However, acquired resistance to lorlatinib will be inevitably developed, especially by mutations in LTK gene, as 50-60% of oncogenic driver-positive NSCLC develop resistance to kinase inhibitors by acquired mutation… Show more
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