 - Disagreement on blood sample collection Patients allergic of any of drug in this regimen or with metabolic disorder Pregnant or lactating women Serious medical illness likely to interfere with participation Serious infection Primitive or secondary tumors of central nervous system Chemotherapy or radiotherapy contraindication The evidence of CNS metastasis History of peripheral nervous disorder or dysphrenia patients participating in other clinical trials patients taking other antitumor drugs patients estimated to be unsuitable by investigation 