Topic: Muscle Invasive Bladder Cancer

Jason A. Efstathiou, MD, DPhil, FASTRO, FACRO, emphasizes the growing interest in bladder preservation therapies as an alternative to radical cystectomy for muscle-invasive bladder cancer (MIBC). While cystectomy remains an effective treatment, it is not performed in about half of eligible patients. Trimodality therapy (TMT), combining maximal transurethral resection (TUR), chemotherapy, and radiation, offers a promising bladder-sparing approach.

In this 11-minute presentation, Dr. Efstathiou compares outcomes between TMT and cystectomy, showing no significant difference in metastasis-free or cancer-specific survival. A shift toward biomarker-driven management is also highlighted, with specific markers, such as MRE11 and immune signatures, indicating better responses to chemoradiation. Immunotherapy is increasingly integrated into treatment regimens, with promising trials like SWOG 1806 exploring the addition of immune checkpoint inhibitors to chemoradiation.

TMT, now recognized by major guidelines, offers patients a viable option with preserved bladder function, improved quality of life, and less life interference. The presentation stresses the need for improved staging, expanded access to bladder-sparing options, and informed decision-making to optimize outcomes for MIBC patients.