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Sequential Intravesical Chemoimmunotherapy with Mitomycin C and Bacillus Calmette-Guerin and with Bacillus Calmette-Guerin Alone in Patients with Carcinoma in Situ of the Urinary Bladder: Results of an EORTC Genito-Urinary Group Randomized Phase 2 Trial (30993)
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2011 (English)In: European Urology, ISSN 0302-2838, E-ISSN 1873-7560, Vol. 59, no 3, 438-446 p.Article in journal (Refereed) Published
Abstract [en]

Background: Bacillus Calmette-Guerin (BCG) is the intravesical treatment of choice for carcinoma in situ (CIS). Objective: Our aim was to assess if sequential mitomycin C (MMC) plus BCG after transurethral resection (TUR) is worthy of further study in non-muscle-invasive bladder cancer patients with CIS. Design, setting, and participants: In a noncomparative phase 2 study, 96 patients with primary/secondary/concurrent CIS of the urinary bladder were randomized to sequential MMC plus BCG or to BCG alone after TUR. Intervention: Patients received six weekly instillations of MMC followed by six weekly instillations of BCG or six weekly instillations of BCG, 3 wk rest, and three further weekly instillations of BCG. Complete responders received three weekly maintenance instillations at 6, 12, 18, 24, 30, and 36 mo in accordance with the initial randomization. Measurements: End points were complete response (CR) rate at the first control cystoscopy 16-18 wk after start of treatment, disease-free interval, overall survival, and side effects. Results and limitations: Ninety-six patients were randomized, 48 to each treatment group. Ten patients were ineligible, and three did not start treatment. In all random-ized patients, CR rates on MMC plus BCG and BCG alone were 70.8% and 66.7%, respectively. In 83 eligible patients who started treatment, CR rates were 75.6% and 73.8%, respectively. Based on a median follow-up of 4.7 yr, 25 patients (52.1%) on MMC plus BCG and 22 patients (45.8%) on BCG alone were disease free. Twelve patients stopped treatment due to toxicity: three during induction (two MMC plus BCG, one BCG) and nine during maintenance (three MMC plus BCG, six BCG). Conclusions: In the treatment of patients with CIS, sequential chemoimmunotherapy with MMC plus BCG had acceptable toxicity. CR and disease-free rates were similar to those on BCG alone and to previous publications on sequential chemoimmunotherapy.

Place, publisher, year, edition, pages
2011. Vol. 59, no 3, 438-446 p.
Keyword [en]
Bacillus Calmette-Guerin, Carcinoma in situ, Intravesical therapy, Mitomycin C, Non-muscle-invasive bladder cancer, Randomized clinical trial, Urinary bladder
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-148966DOI: 10.1016/j.eururo.2010.11.038ISI: 000286658600030OAI: oai:DiVA.org:uu-148966DiVA: diva2:403531
Available from: 2011-03-14 Created: 2011-03-14 Last updated: 2017-12-11Bibliographically approved

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