ZG19018 showed highly inhibition of a 3D growth panel for human cancer cell lines harboring the KRAS G12C mutation, e.g. H358 (NSCLCs), MIA PaCa-2 (pancreatic) and SW837 (colorectal)...For in vivo anti-tumor efficacy, ZG19018 exhibited significant dose-dependent inhibition of tumor growth of G12C-driven subcutaneous models in nude mouse like H358 NSCLC cells but induced further tumor regression in pancreatic cancer MIA PaCa-2 xenograft. ZG19018 also showed an enhanced anti-tumor activities as combined with chemo-reagent Donafinib, a broad tyrosine kinase inhibitor blocking RAF/MEK/ERK signaling pathways of tumor cells, in the same H358 xenograft model.