Opal is a conditional 4-1BB agonistic fusion protein comprising trimerized 4-1BB ligand and a high affinity variant of the extracellular domain of PD-1
Opal
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: Opal is a conditional 4-1BB agonistic fusion protein comprising trimerized 4-1BB ligand and a high affinity variant of the extracellular domain of PD-1 ### Output: Opal