We retrospectively examined patients with advanced gastric cancer who underwent S-1/CDDP combined neoadjuvant chemotherapy. Nine patients who had the factor of curative surgery deemed not feasible for advanced gastric cancer were enrolled. 80 mg/m2 of S-1 was given orally from days 1-14, and 60 mg/m2 of CDDP was administered on day 8. Patients were treated with a three-cycle protocol. When an adverse event greater than Grade 3 showed, we judged that chemotherapy could not be continued and surgery was performed. An anti-tumor effect on the imaging was found in all cases of PR. The histological effect was judged to be Grade 3 and pathological CR in two cases. In the postoperative period, all patients received adjuvant chemotherapy. S-1/CDDP combined neoadjuvant chemotherapy is a potential regimen for advanced gastric cancer.
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