- Patients must have received at least two prior lines of treatment in the metastatic setting; patients must have received 5-Fluorouracil (5-FU) or capecitabine, oxaliplatin and irinotecan, either in the adjuvant or metastatic setting; at least 4 weeks must have elapsed since prior chemotherapy or radiation therapy (6 weeks if the last regimen included mitomycin C)