A case of advanced gastric cancer resected after successful treatment with the novel oral anticancer drug TS-1

摘要

We report a case of advanced gastric cancer resected after successful treatment with the novel oral anticancer drug TS-1. The patient was a 52-year-old male. Gastrointestinal fiberscopy showed advanced gastric cancer. Examinations by computed tomography revealed gastric cancer invasion of the pancreas and swollen para-aortic lymph nodes. This patient was treated by preoperative chemotherapy with oral administration of TS-1 (120 mg per day). After 3 courses of treatment of TS-1, the primary lesion and swollen lymph nodes were remarkably reduced. This chemotherapy enabled total gastrectomy in curative resection. The pathological effectiveness of chemotherapy was Grade 1b in the primary lesion and Grade 2 or 3 in the lymph nodes. The patient sustained few side effects. This preoperative chemotherapy regimen seems to be an effective and promising therapy for patients with advanced gastric cancer.