[An advanced pulmonary adenocarcinoma case in which TS-1 proved effective]

A sixty-two-year-old female presented with non-small-cell lung carcinoma with multiple bone metastasis. Combination chemotherapy with CBDCA and GEM was implemented, but as no effect was obtained, TS-1 was begun with a single course of oral administration of 100 mg/day continuously for 28 days followed by a 14-day rest. Following the start of TS-1, PR of the primary tumor was obtained, and whole-body bone scintigraphy revealed a reduction in abnormal areas of uptake. The woman continues to receive TS-1 orally as an outpatient.