Treatment switching adjustment of overall survival in the CheckMate 227 clinical trial of nivolumab plus ipilimumab versus chemotherapy in first line treatment of patients with advanced non-small-cell lung cancer
Ipilimumab;Nivolumab
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: Treatment switching adjustment of overall survival in the CheckMate 227 clinical trial of nivolumab plus ipilimumab versus chemotherapy in first line treatment of patients with advanced non-small-cell lung cancer ### Output: Ipilimumab;Nivolumab