A Prompt Reporting Event (PRE) is a predefined safety or compliance event that requires rapid documentation, notification, and follow-up according to the protocol or sponsor procedures.
PREs are typically used to ensure time-sensitive issues such as urgent safety findings, critical deviations, or product quality concerns are escalated quickly for assessment and action. Clear PRE definitions help sites and sponsors apply consistent reporting thresholds and avoid delayed recognition of emerging risk. Documenting PREs supports audit trails, oversight transparency, and timely communication to stakeholders responsible for participant protection. Well-managed PRE processes strengthen inspection readiness by demonstrating that urgent events are detected and handled in a controlled, traceable way.