The signal transduction inhibition and cytotoxic response of ABN401 in combination with Lazertinib were tested in vitro against Osimertinib-resistance NSCLC cell lines (HCC827-AR) and patient-derived organoid (YUO-010)....ABN401 showed preclinical anti-tumor activities combined with Lazertinib (a 3rd-generation EGFR-TKI) in an EGFR mutant NSCLC model with MET gene amplification both in vitro and in vivo.