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206.667.5900

Mailing address:
Fred Hutch Cancer Center
Institutional Review Office
1100 Fairview Ave. N.
Mail Stop J2-100
Seattle, WA 98109

Contact Information

Last Modified: 10-30-24

Guidance: Study Status

Fred Hutch IRB asks researchers to transition studies to different statuses as the research progresses (e.g., Open to Accrual, Long-Term Follow-Up, Data Analysis Only, etc.). 

To assure an accurate indication of your study status throughout the life of your research, please follow the guidance below when submitting a Modification or Continuing Review

Note: A modification does not need to be submitted if the only change to report is a change to the study status. Instead, you can wait to report the change in status in your next Continuing Review.

Please contact IRO@fredhutch.org with questions about study status.


Hutch IRB SmartForm: Study Status OptionsStudy Status Description
No participants have been enrolled at this locationSelect this status if you have received IRB approval for your study, but absolutely no human subject research activity has occurred at the site.
Open to Accrual of New Participants / Open to the Collection of Specimens or RecordsNew participants may enroll. Active collection of data/specimens from new participants is occurring.
Accrual is temporarily on holdAn active and approved study open to accrual where the IRB, investigator and/or sponsor has declared a formal “hold” or halt to accrual to mitigate a pending matter (e.g., safety issues being assessed, pending amendment, pandemic, etc.). If this status is indicated, the hold can only be lifted by the IRB through either a study modification or at an upcoming Continuing Review for your study where you indicate a new status and provide documentation that the hold has been lifted.
Permanently closed to accrual – clinical interventions, surveys, or similar participant interactions continuing

No NEW participants will be enrolled on this research. No data/specimens from a NEW participant will be added to the study.

Study activity is ongoing for currently enrolled participants and may include:

  • Intervention or interaction with existing participants
  • Continued use of a study drug or study device
  • Research-only follow-up procedures such as scans, blood draws, biopsies, questionnaires, etc.

Collection of data/specimens from existing subjects

Permanently closed to accrual – remaining activity limited to collection of participant long-term follow-up data

Long-term follow-up must be limited to accessing clinical data from procedures participants would undergo as part of clinical care. If any follow-up procedures (scans, blood draws, questionnaires, etc.) are being done only for the research, or at a schedule different from standard care, this is not the right status.

Research activities are limited to the following:

  • Access of clinical data from participants’ regular medical records
  • Verification of survival status either through contact with the participant or a review of the National Death Index
  • Sending participant-level data or overall study results to participants as approved in the IRB application

Analysis of existing specimens

Closed to Accrual – remaining activities limited to analysis of specimens/data already collected

The intent of this status is to indicate a “winding down” of all study activities to only include analysis of identified or de-identified data and/or specimens that were collected for research purposes for this study. This is the last phase prior to closing a study permanently.

Research activities are limited to the following:

  • Analysis of existing data or existing specimens. There is no plan to bring any additional data or specimens into the study
  • Manuscript activities