Report on nationwide pooled data and cohort investigation in UFT phase II study

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Abstract
Summary UFT is a compound in which futraful (FT) and uracil are combined at a ratio of 1:4. UFT was given orally at a daily dose of 300–600 mg in a phase II study. Pooled data on a UFT phase II study of 438 evaluable patients, at 104 institutions revealed a response in carcinoma of the stomach (27.7%), pancreas (25.0%), gallbladder and bile duct (25.0%), liver (19.2%), colon and rectum (25.0%), breast (32.0%), and lung (7.0%). The mainly gastrointestinal toxicity resulted in anorexia (24.3%), nausea and vomiting (12.5%), and diarrhea (11.8%). On the other hand, hematological toxicity was rare and mild. To analyze the lifeprolonging effect of the therapy, a cohort study was carried out in 438 cases collected in the UFT phase II study 5 years after the commencement of the therapy. The 50% survival time for 185 patients with gastric cancer was 185 days. The corresponding times in 54 patients with colorectal cancer and 49 with breast cancer were 227 and 505 days, respectively. A historical comparative study of UFT and FT, which was administered in the same institutions for equal evaluation, revealed that UFT had a significantly better effect than FT without more pronounced side effects with the equivalent dose schedule. In conclusion, UFT can be considered a useful agent against cancers over a broad spectrum, especially in gastrointestinal cancer.