The first date that research could be performed (following notification from the IRB).For research reviewed by the convened IRB, the approval date is the date that the research was approved at a convened meeting, or if modifications were required (to secure approval), the date that modifications were met by the investigator. For research reviewed using expedited procedures, the approval date is the date that the research was approved by expedited review, or if modifications were required, the date that modifications were met by the investigator.
