Current status and advances in bladder-sparing treatment for non-metastatic muscle-invasive bladder cancer
Background: Muscle-invasive bladder cancer (MIBC) is a highly aggressive malignancy for which radical cystectomy (RC) remains the standard treatment. While RC provides effective oncologic control, it significantly impairs patients’ quality of life. As a result, there is growing interest in bladder-sparing strategies. Among these, trimodal therapy (TMT) remains the most established approach, and evolving regimens incorporating novel immune checkpoint inhibitors have expanded therapeutic possibilities. However, a standardized treatment protocol has yet to be defined. Objective: This review outlines the current status and recent advances in bladder-sparing treatments for MIBC, with a focus on treatment principles, established modalities such as TMT, and emerging immunotherapy-based strategies. Conclusion: TMT offers a well-tolerated and potentially curative alternative to RC for select patients with localized MIBC. Its success relies on appropriate patient selection and multidisciplinary collaboration. Immunotherapy-based bladder preservation approaches have shown promising outcomes but require further validation in large-scale randomized clinical trials.
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