ATG-101, a tetravalent PD-L1x4-1BB BsAb, demonstrates potent in vivo anti-tumor efficacy in ICI-resistant or refectory mouse tumor models   
ATG-101
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: ATG-101, a tetravalent PD-L1x4-1BB BsAb, demonstrates potent in vivo anti-tumor efficacy in ICI-resistant or refectory mouse tumor models    ### Output: ATG-101