Safety evaluation from the KEYNOTE-355 study of pembrolizumab plus chemotherapy vs placebo plus chemotherapy in patients with previously untreated, locally recurrent inoperable or metastatic triple-negative breast cancer
Pembrolizumab
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: Safety evaluation from the KEYNOTE-355 study of pembrolizumab plus chemotherapy vs placebo plus chemotherapy in patients with previously untreated, locally recurrent inoperable or metastatic triple-negative breast cancer ### Output: Pembrolizumab