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  • Title: Bladder preservation in selected patients with muscle-invasive bladder cancer by complete transurethral resection of the bladder plus systemic chemotherapy: long-term follow-up of a phase 2 nonrandomized comparative trial with radical cystectomy.
    Author: Solsona E, Climent MA, Iborra I, Collado A, Rubio J, Ricós JV, Casanova J, Calatrava A, Monrós JL.
    Journal: Eur Urol; 2009 Apr; 55(4):911-9. PubMed ID: 18722046.
    Abstract:
    BACKGROUND: Many phase 2 bladder-sparing programmes using transurethral resection of the bladder (TURB) plus chemotherapy or radio-chemotherapy have been undertaken, but some controversies remain. OBJECTIVE: To determine the efficacy of complete TURB plus three cycles of cisplatin-based chemotherapy in selected patients with muscle-invasive bladder cancer (MIBC). DESIGN, SETTING, AND PARTICIPANTS: A phase 2 nonrandomized trial was designed that included patients with MIBC who underwent complete TURB with positive biopsies of the tumour bed. Patients with negative biopsies of the tumour bed, with macroscopically residual tumour, with hydronephrosis, or with distant metastasis were excluded from this trial. Patients included in this trial were offered three cycles of systemic chemotherapy or radical cystectomy (RC). Clinical response (cR) was denoted by either no tumour or the presence of Ta1-Tis bladder tumour at 3-mo evaluation; clinical non-response (cNR) was denoted by cases of muscle-invasive tumour or distant metastasis. Of 146 patients who entered this trial, 75 choose the bladder-sparing programme and 71 chose RC. MEASUREMENTS: At 5 yr and 10 yr, the cancer-specific survival (CSS) rate was 64.5% and 59.8%, respectively, with no significant difference compared to the RC arm (p=0.544). The progression-free survival with bladder preserved was 52.6% and 34.5%, respectively. In multivariate analysis, cR was the only predictive factor for survival (p=0.001) and bladder preservation (p=0.000). RESULTS AND LIMITATIONS: This was not a randomized trial, and patients were included over 16 yr. However, no modifications were made to the therapy schedule except from chemotherapy schemes considered standard at the time. CONCLUSIONS: Patients with microscopic residual cancer after complete TURB seem to be good candidates for the bladder-sparing programme using three cycles of systemic chemotherapy, with CSS comparable to RC.
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