Study to Evaluate the Efficacy and Safety of FOLFOX-4 Plus Cetuximab Versus UFOX Plus Cetuximab.

This is an exploratory study to compare activity and safety in 400 patients with previously untreated metastatic carcinoma of the colon treated with UFOX (a combination regimen of UFT (Tegafur plus Uracil), Oxaliplatin, Folinic Acid) plus Cetuximab or FOLFOX-4 (a combination regimen of 5 Fluorouracil (5-FU), Oxaliplatin and Folinic Acid) plus Cetuximab)