FOLFOX Followed by FOLFIRI or Reverse Sequence Treatment in Advanced Gastric Cancer (AGC)

FOLFOX\* followed by FOLFIRI\*\* or reverse sequence treatment regimen have been used as a standard treatment modality in metastatic colorectal cancer.Oxaliplatin and Irinotecan were used for advanced gastric cancer also. The investigators study was designed to evaluate the safety and efficacy of FOLFOX followed by FOLFIRI or reverse sequence treatment regimen as a first-line and second line therapy for patients with relapsed or metastatic gastric cancer similar with colorectal cancer. \*FOLFOX: oxaliplatin followed by leucovorin before bolus 5-FU followed by continuous infusion 5-FU \*\*FOLFIRI: irinotecan followed by leucovorin before bolus 5-FU followed by continuous infusion 5-FU