We have carried out the Phase II study by oral administration of UFT enteric-coated granules (UE) against various malignant tumors. Out of 45 patients entered in the study, 40 patients were evaluable: 36 patients among them had measurable lesions. PR (partial response) were obtained in two (11.1%) out of 18 patients with gastric cancer and one (50.0 %) out of 2 patients with lung cancer. Total response rate was 8.3%. Side effects by UE were slight; that is, anorexia (13.3%), nausea and vomiting (8.9%), generalized malaise (8.9%) and so forth. UE, as a long-term therapy, can be considered a useful drug against cancers with less side effects.