RecruitingProcedureDeceased Donor Bladder or Combined Kidney-bladder Transplantation: a Phase 0 First-in-human StudyThe goal of this clinical trial is to demonstrate the feasibility of bladder transplantation in patients with terminal bladder diseases who would benefit from a new bladder or a combined kidney and bladder transplant. The main questions it aims to answer are: * Is human bladder transplantation feasible and safe? * How will the new bladder function in terms of storage and emptying? Participants will undergo a bladder-only or combined kidney and bladder transplantation. They will then be followed for two years to evaluate the efficacy, safety, and functionality of the bladder transplant.