Frequently Asked Questions

We recommend that you check out the following quick links to find answers to your questions: 

If you still can’t find what you’re looking for, additional FAQs have been developed for information that may be more difficult to find.




The Unity Health Lead Applicant on every application to the REB must be a Unity Health employee or have an active appointment at the Unity Health. Also, for any student study, the Unity Health Lead Applicant must be the student’s supervisor within Unity Health. The student can act as the Co-I.

To do so, you need to have a Unity Health Lead Applicant who is a Unity Health employee or has an appointment at Unity Health Toronto. This person will be solely responsible for the scientific and ethical conduct of the study within Unity Health.


All student research needs a supervisor within Unity Health. This supervisor will act as the Unity Health Lead Applicant. In addition, if you are a student from the University of Toronto, you will need to comply with University of Toronto policies and guidelines. Go to For Students for more information about how to conduct research within Unity Health.


The Unity Health REB requires that all investigators provide their signatures on the application form. If you have any questions, please contact the research ethics office.


The length of time for a study to be approved varies according to a number of factors. The study classification (as full board or delegated) is a primary determinant. Additional factors can include the complexity of the study, the risks involved, availability of expert reviewers, and the time taken by investigators to respond to the REB.

If you have questions about a specific application, please contact your Research Ethics Coordinator,  as indicated in your review letter. If you’re not sure who your Research Ethics Coordinator is, please contact

The REB approves studies for a maximum of one (1) year. It is the responsibility of the Unity Health Lead Applicant to keep their REB approval current.

To renew your study, please visit the Study Renewal section of our website.

The REB considers a study to be complete (i.e., ready to be closed) when the following criteria have all been met for all Unity Health sites:

  • All participant involvement is complete.
  • All data collection is complete.
  • All data clarification is complete.
  • All data transfer is complete.
  • All access to participants’ health records is complete.
  • The registration has been updated and study team will post summary results within the required timelines

If your study meets all these criteria, please visit the Study Closure section of our website.