If there are participants you would like add to your participant pool not associated with an active study, you can add them directly to your registry. To do this, users who have registry access will see Add Participant button in the top left of their registry screen.
Adding a participant to your registry only requires the participant's name. First and Last name are required fields, and middle name is optional.
Once you created your participant, they will appear in your participant registry. From this point you can add participant data to their profile and add them to active studies. Additionally, they are now searchable to recruit from within your registry.