Vectibix (Panitumumab) is an epidermal growth factor receptor (EGFR) antagonist indicated for the treatment of KRAS G12C-mutated Metastatic Colorectal Cancer (mCRC) In combination with sotorasib, for the treatment of adult patients with KRAS G12C-mutated mCRC, as determined by an FDA-approved test, who have received prior treatment with fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy