Go to the OpenClinica Configuration page of the study for which you wish to delete the study mapping. Click on 'More' → Delete Data.
You will get a popup like below where you will need to confirm whether you wish to delete the existing data in the protocol.
Once you click on the ‘Yes' on the above popup, study data will be deleted, and you will get a notification '<add notification>’.
Study data before deleting
<Add SS>
Study data after deleting
<Add SS>