[A patient with hepatic, pulmonary, and nodal metastases of colon cancer responding to CPT-11/TS-1 therapy].

In December 2002, a 67-year-old man underwent right colectomy (stage IIIa, cur B) for cancer of the ascending colon. Chemotherapy with 5'-DFUR and PSK was performed after surgery, but was discontinued due to grade 3 diarrhea. The patient refused treatment with other drugs. An increased CEA level was observed in July 2004, and metastasis of his colon cancer to the liver, lungs, and supraclavicular lymph nodes was confirmed. The patient agreed to resume chemotherapy in December 2004, and received outpatient treatment with CPT-11 (70 mg/m(2) on days 1 and 8) and TS-1 (100 mg/day on days 1-14). There was a significant decrease of tumor markers and a decrease in the size of the metastatic tumors, with these findings being judged as PR. Diarrhea (grade 1) and oral ulceration (grade 2) were observed during treatment. However, these side effects were transient and resolved temporarily without suspending therapy. Although hepatic dysfunction (grade 2) was observed after the completion of cycle No.5, the patient decided to discontinue treatment. CPT-11/TS-1 chemotherapy seems to be useful for maintaining the QOL of patients with metastatic colon cancer.