The goal of this exploratory study is to evaluate the safety and efficacy of nimotuzumab combined with chemoradiotherapy in bladder - preserving treatment for MIBC patients who are ineligible for or decline radical cystectomy. The main questions it aims to answer are:
Does nimotuzumab combined with radiotherapy reduce adverse events in elderly bladder cancer patients? Does this combination improve objective response rate (ORR), progression - free survival (PFS), overall survival (OS), and bladder preservation rate in these patients? Participants will be MIBC patients treated with nimotuzumab and chemoradiotherapy, with a planned 5 - year follow - up to assess treatment efficacy and safety.
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