We need to add a value to a drop down menu in a CRF. The table that is associated with the CRF contains data for all subjects in the study. We need to add a value to the drop down menu for one variable. I have been told this requires re-entering the data for that CRF. Is this true? I would think that since the structure of the database table isn't being changed this addition of a drop down menu option would not require re-entry. Any help is appreciated.