Samantha Cambier1, Richard J Sylvester2, Laurence Collette1, Paolo Gontero3, Maurizio A Brausi4, George van Andel5, Wim J Kirkels6, Fernando Calais Da Silva7, Willem Oosterlinck8, Stephen Prescott9, Ziya Kirkali10, Philip H Powell11, Theo M de Reijke12, Levent Turkeri13, Sandra Collette1, Jorg Oddens14. 1. EORTC Headquarters, Brussels, Belgium. 2. EORTC Headquarters, Brussels, Belgium. Electronic address: richard.sylvester@eortc.be. 3. Department of Surgical Sciences, Molinette Hospital, Torino, Italy. 4. Department of Urology, AUSL, Modena, Italy. 5. Department of Urology, OLVG, Amsterdam, The Netherlands. 6. Department of Urology, Erasmus Medical Center, Rotterdam, The Netherlands. 7. Department of Urology, Hospital Do Desterro, Lisbon, Portugal. 8. Department of Urology, Ghent University Hospital, Ghent, Belgium. 9. Department of Urology, St. James's University Hospital, Leeds, UK. 10. Department of Urology, Dokuz Eylul University School of Medicine, Izmir, Turkey. 11. Department of Urology, Freeman Hospital, Newcastle Upon Tyne, UK. 12. Department of Urology, Academic Medical Center, Amsterdam, The Netherlands. 13. Department of Urology, Marmara University School of Medicine, Istanbul, Turkey. 14. Department of Urology, Jeroen Bosch Ziekenhuis, s'-Hertogenbosch, The Netherlands.
Abstract
BACKGROUND: There are no prognostic factor publications on stage Ta-T1 non-muscle-invasive bladder cancer (NMIBC) treated with 1-3 yr of maintenance bacillus Calmette-Guérin (BCG). OBJECTIVE: To determine prognostic factors in NMIBC patients treated with 1-3 yr of BCG after transurethral resection of the bladder (TURB), to derive nomograms and risk groups, and to identify high-risk patients who should be considered for early cystectomy. DESIGN, SETTING, AND PARTICIPANTS: Data for 1812 patients were merged from two European Organization for Research and Treatment of Cancer randomized phase 3 trials in intermediate- and high-risk NMIBC. INTERVENTION: Patients received 1-3 yr of maintenance BCG after TURB and induction BCG. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Prognostic factors for risk of early recurrence and times to late recurrence, progression, and death were identified in a training data set using multivariable models and applied to a validation data set. RESULTS AND LIMITATIONS: With a median follow-up of 7.4 yr, 762 patients recurred; 173 progressed; and 520 died, 83 due to bladder cancer (BCa). Statistically significant prognostic factors identified by multivariable analyses were prior recurrence rate and number of tumors for recurrence, and tumor stage and grade for progression and death due to BCa. T1G3 patients do poorly, with 1- and 5-yr disease-progression rates of 11.4% and 19.8%, respectively, and 1- and 5-yr disease-specific death rates of 4.8% and 11.3%. Limitations include lack of repeat transurethral resection in high-risk patients and exclusion of patients with carcinoma in situ. CONCLUSIONS: NMIBC patients treated with 1-3 yr of maintenance BCG have a heterogeneous prognosis. Patients at high risk of recurrence and/or progression do poorly on currently recommended maintenance schedules. Alternative treatments are urgently required. PATIENT SUMMARY:Non-muscle-invasive bladder cancer patients at high risk of recurrence and/or progression do poorly on currently recommended bacillus Calmette-Guérin maintenance schedules, and alternative treatments are urgently required. TRIAL REGISTRATION: Study 30911 was registered with the US National Cancer Institute clinical trials database (protocol ID: EORTC 30911). Study 30962 was registered at ClinicalTrials.gov, number NCT00002990; http://clinicaltrials.gov/ct2/show/record/NCT00002990.
RCT Entities:
BACKGROUND: There are no prognostic factor publications on stage Ta-T1 non-muscle-invasive bladder cancer (NMIBC) treated with 1-3 yr of maintenance bacillus Calmette-Guérin (BCG). OBJECTIVE: To determine prognostic factors in NMIBC patients treated with 1-3 yr of BCG after transurethral resection of the bladder (TURB), to derive nomograms and risk groups, and to identify high-risk patients who should be considered for early cystectomy. DESIGN, SETTING, AND PARTICIPANTS: Data for 1812 patients were merged from two European Organization for Research and Treatment of Cancer randomized phase 3 trials in intermediate- and high-risk NMIBC. INTERVENTION: Patients received 1-3 yr of maintenance BCG after TURB and induction BCG. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Prognostic factors for risk of early recurrence and times to late recurrence, progression, and death were identified in a training data set using multivariable models and applied to a validation data set. RESULTS AND LIMITATIONS: With a median follow-up of 7.4 yr, 762 patients recurred; 173 progressed; and 520 died, 83 due to bladder cancer (BCa). Statistically significant prognostic factors identified by multivariable analyses were prior recurrence rate and number of tumors for recurrence, and tumor stage and grade for progression and death due to BCa. T1G3 patients do poorly, with 1- and 5-yr disease-progression rates of 11.4% and 19.8%, respectively, and 1- and 5-yr disease-specific death rates of 4.8% and 11.3%. Limitations include lack of repeat transurethral resection in high-risk patients and exclusion of patients with carcinoma in situ. CONCLUSIONS: NMIBC patients treated with 1-3 yr of maintenance BCG have a heterogeneous prognosis. Patients at high risk of recurrence and/or progression do poorly on currently recommended maintenance schedules. Alternative treatments are urgently required. PATIENT SUMMARY: Non-muscle-invasive bladder cancerpatients at high risk of recurrence and/or progression do poorly on currently recommended bacillus Calmette-Guérin maintenance schedules, and alternative treatments are urgently required. TRIAL REGISTRATION: Study 30911 was registered with the US National Cancer Institute clinical trials database (protocol ID: EORTC 30911). Study 30962 was registered at ClinicalTrials.gov, number NCT00002990; http://clinicaltrials.gov/ct2/show/record/NCT00002990.
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