Efficacy and safety of pembrolizumab (pembro) in children and young adults with newly diagnosed classical Hodgkin lymphoma (cHL) with slow early response (SER) to front-line chemotherapy (chemo) in the phase 2, open-label, KEYNOTE-667 study.
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: Efficacy and safety of pembrolizumab (pembro) in children and young adults with newly diagnosed classical Hodgkin lymphoma (cHL) with slow early response (SER) to front-line chemotherapy (chemo) in the phase 2, open-label, KEYNOTE-667 study. ### Output: Pembrolizumab