Ongoing studies are required to undergo continuing review by the IRB at least once per year. Please keep the entire timeframe in mind when looking at a continuing review submission. In addition to reviewing the CR form and any documents submitted with the form, take a look at everything that has been submitted on the study since the last continuing review approval. Has the study been modified in the past year, or have any reportable new information forms been processed? That level of review will help keep the IRB in the loop regarding everything it will need to know to approve the study for another year.