Deleting a study or submission can be done from either the Study Details page, or the Submission Details page.
Deleting a Study
You can only delete a study if it has no submissions attached. To delete a study, click on Delete on the Study Details page.
On the confirmation page, click Delete.
Deleting a Submission
You can only delete a submission prior to the initial completion (when Complete Submission is clicked). If a submission can't be deleted, it can be withdrawn instead.
To delete a submission, click on Delete on the Submission Details page.
On the confirmation page, click Delete.