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  • Title: A longitudinal study of patients with superficial bladder carcinoma successfully treated with weekly intravesical thio-tepa.
    Author: Nocks BN, Nieh PT, Prout GR.
    Journal: J Urol; 1979 Jul; 122(1):27-9. PubMed ID: 110947.
    Abstract:
    Herein is reported further results of a prospective clinical investigation to determine the effect of weekly intravesical bladder instillation of thio-tepa in the treatment of superficial bladder cancer. Patients with superficial bladder carcinoma were treated according to 2 protocols. The first protocol consisted of patients with persistent tumor who were treated with weekly thio-tepa for 8 weeks. Of the 33 patients 18 responded to this therapy, and they and 24 other patients who had been rendered free of tumor by transurethral resection alone were assigned to the second protocol in which patients either were treated with monthly instillations of thio-tepa or they were observed every 3 months in a prescribed fashion. Monthly thio-tepa instillations had no significant effect in lowering the recurrence rate in either group. However, in the patients who had responded to weekly thio-tepa benefit was noted in terms of 1) fewer recurrences, with 8 of 18 (44 per cent) previously pre-treated patients having a recurrence versus 19 of 24 patients (79 per cent) previously untreated, 2) delay in tumor recurrence with an interval free of tumor of 15.1 months in pre-treated patients versus 4.3 months in the untreated group and 3) diminished frequency of new tumors (0.33 recurrences yearly) in comparison to the untreated group (1.78 recurrences yearly). The remaining patients are free of tumors at 15.7 months average followup.
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