A Phase 1b open-label, single-arm dose expansion study of IK-175, an oral AHR inhibitor, in combination with nivolumab in patients with primary PD-1 inhibitor resistant advanced head and neck cancer   
IK-175;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: A Phase 1b open-label, single-arm dose expansion study of IK-175, an oral AHR inhibitor, in combination with nivolumab in patients with primary PD-1 inhibitor resistant advanced head and neck cancer    ### Output: IK-175;Nivolumab