Abstract
Purpose
It is unknown to what extent overall survival (OS) of organ-confined (T2N0M0) urothelial carcinoma of the urinary bladder (UCUB) patients differs from age- and sex-matched population-based controls, especially when treatment modalities such as radical cystectomy (RC), trimodal therapy (TMT), or radiotherapy (RT) are considered.
Methods
Relying on the Surveillance Epidemiology and End Results database (2004–2018), we identified newly diagnosed (2004–2013) T2N0M0 UCUB patients treated with either RC, TMT or RT. For each case, we simulated an age- and sex-matched control (Monte Carlo simulation), relying on Social Security Administration Life Tables with 5 years of follow-up, and compared OS with that of RC-, TMT-, and RT-treated cases. Additionally, we relied on smoothed cumulative incidence plots to display cancer-specific mortality (CSM) and other-cause mortality (OCM) rates for each treatment modality.
Results
Of 7153 T2N0M0 UCUB patients, 4336 (61%) underwent RC, 1810 (25%) TMT, and 1007 (14%) RT. At 5 years, OS rate in RC cases was 65% vs. 86% in population-based controls (Δ = 21%); in TMT cases, 32% vs. 74% in population-based controls (Δ = 42%); and in RT, 13% vs. 60% in population-based control (Δ = 47%). Five-year CSM rates were highest in RT (57%), followed by TMT (46%) and RC (24%). Five-year OCM rates were the highest in RT (30%), followed by TMT (22%) and RC (12%).
Conclusion
OS of T2N0M0 UCUB patients is substantially less than that of age- and sex-matched population-based controls. The biggest difference affects RT, followed by TMT. A modest difference was recorded in RC and population-based controls.
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Data availability
All data generated for this analysis were from the Surveillance, Epidemiology, and End Results (SEER) database. The code for the analyses will be made available upon request.
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Acknowledgements
Cristina Cano Garcia was awarded a scholarship by the STIFTUNG GIERSCH.
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No funding was received for conducting this study.
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Conceptualization: CCG, MLP, PIK; methodology: CCG, ZT, PIK; formal analysis and investigation: CCG, MLP, ST, AP, FB, R-BI; writing—original draft preparation: CCG; writing—review and editing: MLP, ST, AP, FB, R-BI, ZT, FS, AB, CT, SFS, MG, DT, AA, ODeC, MK, SB, LAK, FKHC, PIK; supervision: PIK.
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Shahrokh F. Shariat: Horonraria: Astellas, Astra Zeneca, Bayer, BMS, Cepheid, Ferring, lpsen, Janssen, Lilly, MSD, Olympus, Pfizer, Pierre Fabre, Richard Wolf, Roche, Sanochemia, Sanofi, Takeda, Urogen. Consulting or Advisory Role: Astellas, Astra Zeneca, Bayer, BMS, Cepheid, Ferring, lpsen, Janssen, Lilly, MSD, Olympus, Pfizer, Pierre Fabre, Richard Wolf, Roche, Sanochemia, Sanofi, Takeda, Urogen. Speakers’ Bureau: Astellas, Astra Zeneca, Bayer, BMS, Cepheid, Ferring, lpsen, Janssen, Lilly, MSD, Olympus, Pfizer, Pierre Fabre, Richard Wolf, Roche, Sanochemia, Sanofi, Takeda, Urogen, Movember Foundation. Patents: Method to determine prognosis after therapy for prostate cancer—granted 2002–09-06, Methods to determine prognosis after therapy for bladder cancer—granted 2003–06-19, Prognostic methods for patients with prostatic disease—granted 2004–08-05; Soluble Fas urinary marker for the detection of bladder transitional cell carcinoma—granted 2010–07-20. Our research was conducted without any other potential conflicts of interest.
Ethical approval
All analyses and their reporting followed the SEER reporting guidelines. Due to the anonymously coded design of the SEER database, study‐specific Institutional Review Board ethics approval was not required.
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Cano Garcia, C., Piccinelli, M.L., Tappero, S. et al. Differences in overall survival of T2N0M0 bladder cancer patients vs. population-based controls according to treatment modalities. Int Urol Nephrol 55, 1117–1123 (2023). https://doi.org/10.1007/s11255-023-03517-0
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DOI: https://doi.org/10.1007/s11255-023-03517-0