[An effective treatment by chemotherapy with CDDP+CPT-11 for recurrent gastric cancer which S-1 cannot be used owing to adverse effects].

We report a case of a 64-year-old man with multiple lung metastases after gastric cancer surgery. This patient was initially treated with S-1. However, he experienced adverse effects, and subsequently, he was effectively treated with cisplatin (CDDP) and irinotecan (CPT-11). In July 2010, the patient experienced a decrease in appetite and underwent a detailed examination. He also underwent distal gastrectomy in the same month. The postoperative diagnosis was T4a( SE), N2, M0, Stage IIIB. In November 2010, adjuvant chemotherapy with S-1 was initiated. In February 2011, the patient developed a skin disorder( grade 3) and generalized edema along with walking difficulty, which were identified as adverse effects of S-1. Evidently, S-1 was contraindicated for this patient, and adjuvant therapy was discontinued. In September 2011, contrast -enhanced thoracoabdominal computed tomography( CT) was performed and para-aortic lymph node metastasis and multiple lung metastases were detected. CDDP+CPT-11 therapy was initiated. By June 2012, 8 courses had been administered, and the patient had a good partial response. With regard to chemotherapy for advanced or recurrent gastric cancer, there is no consensus on a treatment policy for cases in which S-1 cannot be used owing to adverse effects. CDDP+CPT-11 therapy is considered a safe and effective choice.