A Clinical Study of Disitamab Vedotin for Injection Combined With Penpulimab Injection in Neoadjuvant Therapy for Patients With HER2-expressing Cisplatin-intolerant cT2-T4aNxM0 Bladder Urothelial Carcinoma

"After completion of all screening activities, patients confirmed to be eligible will enter the study and receive the following treatments.~Neoadjuvant regimen (up to 4 cycles): Disitamab Vedotin for Injection, 2.0 mg/kg, given as an IV infusion on day 1, and Penpulimab Injection, 200 mg, on every 21 days On day 1 of the cycle, it is given as an intravenous infusion. Order of use: Disitamab Vedotin for Injection → Penpulimab Injection."