KEYMAKER-U04 substudy 04A: Phase 1/2 umbrella study of investigational therapies for patients with PD-1/L1-refractory locally advanced or metastatic urothelial carcinoma.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: Identify all the mentioned drugs in the given text. Text may or may not contain drug. If they contain more than 1 drug, use ";" as delimiter and join them. ### Input: KEYMAKER-U04 substudy 04A: Phase 1/2 umbrella study of investigational therapies for patients with PD-1/L1-refractory locally advanced or metastatic urothelial carcinoma. ### Output: 