P2, N=134, Not yet recruiting, Guangdong Provincial People's Hospital(Guangdong Academy of Medical Sciences); Guangdong Provincial People's Hospital(Guangdong Academy of Medical Sci
Limertinib showed superior efficacy compared with gefitinib and a manageable safety profile for locally advanced or metastatic NSCLC patients with EGFR-sensitising mutation and should be considered as another first-line treatment option for this patient population.
In this study, we conducted a comprehensive investigation utilizing high-throughput proteomics analysis on established TKI-resistant tumor models, and found a notable upregulation of branched-chain amino acid transaminase 1 (BCAT1) expression in both osimertinib- and ASK120067-resistant tumors compared with the parental TKI-sensitive NSCLC tumors. Moreover, we identified WQQ-345 as a novel BCAT1 inhibitor exhibiting antitumor activity both in vitro and in vivo against TKI-resistant lung cancer with high BCAT1 expression. In summary, our study highlighted the crucial role of BCAT1 in mediating resistance to third-generation EGFR-TKIs through epigenetic activation of glycolysis in NSCLC, thereby supporting BCAT1 as a promising therapeutic target for the treatment of TKI-resistant NSCLC.