Divarasib (GDC-6036) is an orally bioavailable, highly potent, and selective inhibitor of the KRAS G12C mutation, boasting an IC50 of less than 0.01 μM. This investigational drug covalently binds to the switch II (SW-II) pocket of the KRAS G12C protein, effectively trapping it in an inactive GDP-bound state. By irreversibly locking the KRAS G12C oncoprotein in this inactive configuration, Divarasib inhibits tumor cell proliferation. It is currently under investigation for its potential use in treating solid tumors, including non-small cell lung cancer (NSCLC), colorectal cancer, and other malignancies.