OpenClinica User Manual/LockingObjects

Locking Study, Sites and Events
In OpenClinica several objects can be locked: the Study, Sites defined in the Study and Events for Subjects.

To lock a study

 * 1) Navigate to Tasks > Build Study
 * 2) Next to "Set Study Status" select "Locked"
 * 3) Click "Save Status"

To lock a site

 * 1) Navigate to Tasks > Build Study
 * 2) Next to Task 6 Create Sites, click the View icon.
 * 3) Find the Site you want to lock. Select the Edit icon.
 * 4) Scroll down towards the bottom and find "Site Status for this study." Select "locked."
 * 5) Click "Submit Site"

To lock an event for a subject

 * 1) Navigate to the Subject Matrix.
 * 2) Find the Subject & Event you want to lock.
 * 3) Click "View/Enter Data" for the Event you want to lock.
 * 4) At the top, click "Edit Study Event"
 * 5) Next to status, select "locked."
 * 6) Click "Submit changes"

The above describes the "normal" situation where you lock an event for a subject once the event has been marked complete (i.e. all forms are either marked complete or not started). But you can also lock an empty event to prevent data entry:
 * 1) Schedule the event
 * 2) Open one of the event CRFs for initial data entry but do not save anything and close the CRF
 * 3) Change event status to stopped
 * 4) Change event status to locked