Abstract
Purpose
To compare adjuvant hyperthermic intravesical chemotherapy (HIVEC) with mitomycin C and standard Bacillus Calmette–Guerin (BCG) therapy in terms of oncological outcomes and adverse events in patients with high-risk non-muscle-invasive bladder cancer (NMIBC).
Materials and methods
The data of patients with high-risk papillary NMIBC treated with adjuvant intravesical BCG instillations or HIVEC in our institution between June 2017 and August 2022 were analyzed retrospectively. Twenty-four patients who received HIVEC were matched 1:1 with patients receiving BCG therapy based on tumor characteristics (tumor stage and grade), age, gender, smoking status, and the number of tumors (single or multiple). HIVEC and standard BCG treatments were compared in terms of recurrence-free survival (RFS), progression-free survival (PFS), and adverse events.
Results
Forty-eight patients (24 in the BCG group and 24 in the HIVEC group) were included in the study. The median follow-up times of the BCG and HIVEC groups were 32 [interquartile range (IQR): 28.0–47.8] and 28 (IQR: 16.7–41.8) months, respectively (p = 0.11). There was no significant difference between the groups in terms of the 24-month RFS (BCG 83% vs HIVEC 88%, p = 0.64) and the 24-month PFS (BCG 100% vs HIVEC 94%, p = 0.61). Regarding the safety profile, at least one adverse event occurred in 13 (54%) of the patients in the BCG group and 12 (50.0%) of those in the HIVEC group (p = 0.77).
Conclusion
This study demonstrated that HIVEC with mitomycin C has a similar oncological efficacy and safety profile to standard BCG therapy in high-risk NMIBC.
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Data availability
Data are not publicly available.
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All authors read and approved the final manuscript. YP: project development, data collection + analysis, manuscript writing/editing. AE, AE: data collection + analysis, manuscript writing. UC, OS, FO: manuscript writing/editing + data analysis. MFA: project development, data collection + analysis, manuscript writing/editing.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of the Haseki Training and Research Hospital (2022-214).
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Pazir, Y., Esmeray, A., Caglar, U. et al. Comparison of hyperthermic intravesical chemotherapy and Bacillus Calmette–Guerin therapy in high-risk non-muscle invasive bladder cancer: a matched-pair analysis. Int Urol Nephrol 56, 957–963 (2024). https://doi.org/10.1007/s11255-023-03849-x
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DOI: https://doi.org/10.1007/s11255-023-03849-x