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  • Title: [Study on the preoperative adjuvant therapy of cancer--relation between serum and tumor tissue levels of UFT and OK-432 after administration, and skin reactions to Su-polysaccharide (Su-Ps)].
    Author: Kumazawa H, Ishikawa M, Rei S, Saito H.
    Journal: Gan To Kagaku Ryoho; 1987 Dec; 14(12):3329-35. PubMed ID: 3120645.
    Abstract:
    This study was carried out with 48 patients received surgery, i.e., 23 stomach cancer, 8 colon cancer, 6 rectal cancer, 9 breast cancer etc. Patients in group A received UFT in combination with OK-432. Each of UFT or OK-432 was given to the patients in groups B or C, respectively. Changes in the skin reaction to Su-PS were measured before and after dosing, and concentrations of Tegafur and 5-FU in serum and tumor tissues were determined after administration. Analysis of the skin reaction to Su-Ps revealed that patients with positive skin reaction before surgery in group A didn't manifest depression due to sensitization by UFT therapy. Although average values of the skin reaction after dosing were slightly lower compared to those before dosing in group B, sensitization was effective. Values of the skin reaction after dosing were significantly (p less than 0.05) high compared to those before dosing in groups A and C. Concentrations of Tegafur and 5-FU in serum reached to the peak 2 hr later and were maintained high enough to expect clinical responses even at 4 hr after administration in groups A and B. Especially there was not a significant difference between groups A and B in tumor tissue levels of 5-FU, and a high effective concentration was obtained. Combination therapy of UFT with OK-432 exhibited no significant interaction between them in adjuvant immuno-chemotherapy, and satisfactory results were expected in clinical cures.
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