Evaluation of Customized Treatment According to BRCA1 Assessment in Patients With Advanced Gastric Cancer

Inclusion Criteria: * Provision of informed consent * Female or male aged 18 years and over * Histologic or cytologic confirmation of advanced gastric cancer * Stage III-IV (AJCC 7th) * ECOG: 0-2 * Have tumor sample that can be tested for BRCA1 mRNA expression * Negative pregnancy test for women of childbearing potential * Neutrophile granulocyte greater than 1.5×10\^9/L * Hemoglobin greater than 10g/dL * Platelet greater than 100×10\^9/L * Serum bilirubin not greater than 1.5x upper limit of reference range (ULRR) * ALT or AST not greater than 1.5x ULRR * Creatinine clearance no less than 60ml/min Exclusion Criteria: * Have at least another primary malignant tumor * Active infection * Chemotherapy with experimental drug within 3 weeks before the start of study therapy * Women who are pregnant or breast feeding * Weight loss greater 10% within 6 weeks before the start of study therapy