Vectibix is indicated for the treatment of adult patients with wild-type RAS metastatic colorectal cancer (mCRC): in first-line in combination with Folfox or Folfiri. in second-line in combination with Folfiri for patients who have received first-line fluoropyrimidine-based chemotherapy (excluding irinotecan). as monotherapy after failure of fluoropyrimidine-, oxaliplatin-, and irinotecan-containing chemotherapy regimens.