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If a trial (Complete or Abbreviated) reaches any of the following statuses, the system closes the trial at all participating sites, and sets their trial statuses to match the status of the trial that closed: 

• Closed to Accrual
• Closed to Accrual and Intervention
• Administratively Complete
• Complete

The system adds a closure status to each site only if all of the following conditions are met:

• The trial has a closure status as the most recent status.
• The site status history does not have any closure status, regardless of site status date.
• The trial closure status date falls after the latest site status date.

When inserting a new participating site status record, the system performs the following actions:

...

does not change the status of participating sites when you close a trial.