J.Jpn. Surg. Soc.. 102(10): 770-777, 2001

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Feature topic

CURRENT STATUS OF AND FUTURE PERSPECTIVES ON CHEMOTHERAPY IN PATIENTS WITH GASTRIC CANCER:CAN THE CLINICAL DATA FROM JAPAN LEAD TO A STANDARD INTERNATIONAL THERAPY?

From a meta-analysis of clinical studies in Japan and the West, although no survival benefit for stage I gastric cancer was observed in patients who received postoperative adjuvant chemotherapy, the survival benefit for patients with stage II and III disease was small and marginal effect, respectively, since the odds ratios were between 0.80 and 0.82 with a 95% confidence interval of less than 1.0. Anticancer drugs used for combination therapy included mitomycin C, anthracyclines, alkylating agents, and 5-fluorouracil. Increased long-term survival and the prevention of peritoneal reccurence were found in some patients who received combination therapy with mitomycin C, 5-fiuorouracil, and nonspecific immunomodulators such as PSK and OK-432. Regarding chemotherapy for advanced and recurrent cases, administration of biochemical modulators such as low-dose FP and the new dehydropyrimidine dehydrogenase inhibitory fluoropyrimidine agent S1 resulted in increased response rates, improved quality of life, and prolongation of survival. The development of rigorous trials and personalized chemotherapy with molecuiar targeting are needed to achieve further survival benefit for patiens with gastric cancer.

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