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[Combination therapy by bleomycin, methotrexate, and telecobalt irradiation in carcinoma of the oral cavity (author's transl)].

20 patients with advanced carcinomas of the oral cavity (T3NxMo) were treated at the same time with the cytostatic drugs bleomycin and methotrexate as well as with a cobalt-60-irradiation. 14 of them are tumor free after an observation period of one half to two and a half years. Among them were 4 recurrences that had to be treated surgically. 1 patient is living with a residual tumor which cannot be further treated. 5 patients died of the tumor or of other causes. The survival rate, which is 80% after 1 year, is, as a tentative result, higher than could be attained by other therapeutic measures.

Adult↗

Pharmacokinetic and anti-tumor studies with the radiosensitizer misonidazole in dogs with spontaneous fibrosarcomas.

Nine dogs with spontaneous oral fibrosarcomas were given the radiosensitizer misonidazole (Ro-07-0582) In combination with orthovoltage radiotherapy. Although there appeared to be a trend toward greater disease-free survival of these animals as compared with a group of 13 dogs with similar tumors treated by orthovoltage x-rays alone, on analysis there was no significant difference. The plasma half-life and the volume of distribution of misonidazole were determined as 4.95 hours and 15.1 L/m2, respectively. In 3 dogs with evidence of misonidazole toxicosis, plasma concentrations at 4 hours after the dose exceeded 85 microgram/ml, and the areas under the concentration vs time curve for this first 10 hours were greater than 850 microgram.hr/ml.

Animals↗