Combination treatment consisted of first-line treatment of Xeloda (1000 mg/ m2 twice daily for 14 days) combined with irinotecan (250 mg / m2 on day 1) (XELIRI) and second-line capecitabine (1000 mg/ m2 twice daily for 14 days) plus oxaliplatin (130 mg/ m2 on day 1).