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- W1973753693 abstract "We have treated 15 patients with advanced gastrointestinal carcinoma with a cyclical regimen of combined Ftorafur (N1-((2-furanidyl-))-5-Fluorouracil, a 5-FU pro-drug) and external beam radiation. The Ftorafur (FT) was administered orally in daily doses of between 1.0 and 2.5 g/m2/day in 3 divided doses in a Phase I format. The drug was given daily for 5 days along with conventional X ray treatment portals and daily radiation doses of 250 rad on each of the first 4 days of each treatment cycle. The patients were then rested for a minimum of 10 days or until all significant side effects had passed. The total number of 1,000 rad cycles and radiation dose were dictated by tolerance and by normal organ dose limitations. The most common toxicity in general, and the most common limiting toxicity was nausea and vomiting, in contrast to oral FT alone where diarrhea is more prominent. Stomatitis was seen only once and no other form of serious toxicity was encountered. Two-thirds of the patients responded in subjective terms (pain relief). There was 1 partial response to FT alone (pulmonary metastases outside the treatment field). The sole patient whose treatment field was outside the abdomen (chest portals for esophageal carcinoma) developed pneumonitis which contributed to his death. No other delayed effects were noted. Serum FT levels were related to the ingested dose and in the microgram range while serum 5-FU levels were in the nanogram range indicating slow decomposition of FT into 5-FU. The therapy was reasonably well tolerated at doses of 2.0 g/m2/day or lower with abdominal radiation. FT offers the potential for replacing intra-venous infused 5-FU as a clinical radiosensitizer." @default.
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- W1973753693 date "1985-03-01" @default.
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- W1973753693 title "Phase I and pharmacologic study of oral ftorafur and X ray therapy in advanced gastrointestinal cancer" @default.
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- W1973753693 doi "https://doi.org/10.1016/0360-3016(85)90194-4" @default.
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