After initial IRB approval investigators are responsible for maintaining IRB approval and reporting events that require IRB review throughout the life of the research.
All modifications to research must be approved by the IRB prior to implementation, except when necessary to eliminate apparent immediate hazards to the human subjects.
The UC Davis IRB requires investigators to report certain events or circumstances that occur during the conduct of a study. There are specific reporting timelines. Become familiar with the requirements to avoid non-compliance.