- Adult patients (18 to 75 years old). Eastern Cooperative Oncology Group（ECOG） performance status 0 to 2. Life expectancy of at least 12 weeks. Haemoglobin > 10g/dl, absolute neutrophil count (ANC) > 1.5 x 10^9/L, platelets > 100 x 10^9/L; total bilirubin < 1.5x upper limit of normal (ULN). Alanine aminotransferase（ALT） and aspartate aminotransferase（AST）< 1.5x ULN in the absence of liver metastases, or < 5x ULN in case of liver metastases. Creatinine clearance > 60ml/min (calculated according to Cockcroft-gault formula).