Abstract
Several studies showed the inaccuracy of classical surrogate endpoints, such as progression-free survival (PFS) and objective response rate (ORR), in predicting overall survival (OS) in trials of ICI. Patients that respond to immunotherapy have longer median duration of response (mDR) than those that achieve an ORR with standard CT. We aimed to explore the validity of new surrogate endpoints that take into account ORR and mDR in the context of combination ICI trials.
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