- Neoadjuvant chemoradiotherapy and cetuximab: Patients receive oxaliplatin intravenously (IV) over 2 hours on days 1, 15, and 29, cetuximab IV over 1-2 hours on days 1, 8, 15, 22, and 29, and 5-FU IV continuously over 24 hours on days 1-35. Patients also undergo radiotherapy once daily on days 1-5, 8-12, 15-19, 22-26, and 29-33. Patients then proceed to surgery.