RE:RE:RE:RE:Accelerated Approval, surrogate endpoints, registration A Registration Enabling Study is a continuation of a formally registered Phase 2 study, as outlined in the below referenced AstraZeneca and Sierra Oncology licensing agreement, which means that the protocol is the same as the Phase 2 study, thus accelerating the product approval process, and putatively moving pelareorep towards an Accelerated Approval and ultimately a full product marketing approval . This is the last step in an accelerated FDA product approval process