A post marketing surveillance, prospective study to collect safety information from 250 subjects with epidermal growth factor receptor (EGFR) expressing, KRAS wild-type metastatic colorectal cancer treated with Erbitux as final evaluable cases.

Inclusion Criteria:

• EGFR expressing, KRAS wild-type subjects with metastatic colorectal cancer, who are indicated for Erbitux treatment according to the nationally authorized label (in combination with irinotecan, metastatic colorectal cancer after failure of irinotecan-including cytotoxic therapy)

Exclusion Criteria:

• Subjects who are not eligible for Erbitux treatment according to the indication in national label; or with hypersensitivity reactions (grade 3 or 4) to Erbitux

EGFR expressing, KRAS wild-type subjects with metastatic colorectal cancer, who are indicated for Erbitux treatment according to the nationally authorized label (in combination with irinotecan, metastatic colorectal cancer after failure of irinotecan-including cytotoxic therapy)