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Institutional Review Board (IRB): Close Your Study

Contact the IRB

email icon Email us at irb@nu.edu    

 Visit the IRB Office Hours page

How to Close a Study in Cayuse

If you would like to close your study, you must submit a Closure to your application.

To submit a Closure to your application, please follow the instructions in the guide:

When do I close my study?

After you have recruited all participants, collected and de-identified all data, and securely stored all data according to the IRB approved protocol, you will close your study with the IRB. Recruitment and data collection may not continue after study closure. The process for closing a study depends on whether your research involves human subjects.

  • Human Subjects Research. You will submit a study closure (see instructions below). If you are a doctoral student researcher, you will upload your automated study closure confirmation email to the Doctoral Record.
  • Not Human Subjects Research (NHSR). NHSR studies do not need to be closed with the IRB. If you are a doctoral student researcher, you will submit your NHSR determination letter to the Doctoral Record to meet your academic milestone.