[Peri-focal administration of OK-432 combined with radiotherapy in the treatment of esophageal cancer].
We have been interested in direct activity of OK-432 on cancer lesion and applied a combined therapy of perifocal administration of OK-432 with radiation for 2 cases as a new trial. Following results were obtained. Histological efficacy as Ef3 at resected specimen was observed in one case and complete regression of cancer lesion was confirmed by X-ray, fiber scope and biopsy after combined therapy of perifocal administration of 10 KE of OK-432 with radiation of 2400 rad in total.
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