Intravesical Therapy of Superficial Bladder T ransitional Cell Carcinoma with Tumor Necrosis Factor-Alpha: Preliminary Report of a Phase I—II Study

Abstract
A phase I-II trial of intravesical immunotherapy with tumor necrosis factor (TNF)-alpha in 24 patients affected by superficial bladder tumors is herein presented. Of these, 11 patients were submitted, at weekly intervals, after complete TUR, to 8 instillations of TNF-alpha at increasing doses from 50 to 600 micrograms. Tolerability was excellent, even at the highest dose. In a second group of 13 patients with a histologically proved papillary marker lesion, TNF-alpha was instilled at weekly intervals at the dose of 500 micrograms for 8 weeks. Three complete responses (23%) were obtained.

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