Purpose
In order to comply with government regulations and to make the modification approval process as simple as possible for the Principal Investigators (PI), the IACUC has established a policy on modification review and approval.
Action
Any change to a protocol requires the PI to submit a modified protocol through InfoEd. The IACUC office staff will review the modification criteria below to identifythe appropriate review method. If a sumission is unclear, the review method will be determined in consultation with the IACUC Chair and Attending Veterinarian.
Table one below lists examples of significant and administrative modifications. Table two below lists examples of modifications to be reviewed by various review methods.
IF THE MODIFICATION CAN BE REVIEWED ADMINISTRATIVELY, review will be conducted by IACUC office staff. Some admnistrative reveiws may require additional veterinary consultation.
IF THE MODIFICATION IS SIGNFICATN AND REQUIRES IACUC REVIEW, The submission will be reviewed according to federally recognized review processes: Full Committee Review (FCR), Designated Member Review (DMR), or Veterinary Verification and Consultation (VVC).
Full Committee Review: If the IACUC office staff determines that the significant modification requires a full committee review, it will be processed as such. The modification will be assigned appropriate reviewer(s) and will be reviewed by the full committee at a regularly convened meeting.
Designated Member Review: If the IACUC office staff determines that the significant modification meets the criteria for a DMR review, it will be processed as such:
- Notification of the submission of the modification will be sent to the entire committee so that each member may make a determination of whether or not they wish to call for a full committee review of the modification. The IACUC office staff will generally allow a few days for this review; however, exceptional circumstances may warrant a shorter review time period.
- The modification will remain on the agenda covering the request period for documentation purposes.
- The modification does not get reviewed at a regularly convened IACUC meeting.
- Documentation of the DMR review will be in the IACUC minutes.
Veterinary Verification and Consultation Review: If the IACUC office staff determines that the significant modification meets the criteria for a VVC review, it will be processed as such:
- The modification request will be sent to the Attending Veterinarian for review.
- It is the responsibility of the AV assigned to review the modification to do so by the assigned date.
- The modification does not get reviewed at a regularly convened IACUC meeting.
- Documentation of the VVC reveiw will be in the IACUC minutes.
TABLE ONE: Examples of Major (Significant) vs. Minor Modifications
| Major- Requires IACUC Review | Minor- Handled Administratively |
| Change in study objectives | Addition of personnel |
| Change in Principal Investigator | Addition or deletion of funding sources |
| 100% or greater increase in rodent animal numbers | Addition or deletion of room locations previously approved |
| 25% or greater increase in non-rodent animal numbers | <100% increase in rodent animal numbers from the original approved number |
| Change from non-survival to survival surgery | <25% increase in non-rodent animal numbers |
| Change resulting in greater pain, distress, or degree of invasiveness | Need to repeat an experiment |
| Housing of animals in a location not previoiusly approved | Addition of animal strains, including transgenic or gene targeted lines, that have a known phenotype |
| Any changes that have the potential to impact personnel safety | |
| Changes in experimental procedures | |
| Addition of experimental procedures | |
| Addition of species | |
| Addition of strains with an unknown phenotype |
TABLE TWO: Major Modifications- Criteria for FCR/MDR/VVC Reviews
| Full Committee (FCR) | Designated Member (DMR) | Veterinarian (VVC) |
| Addition of major survival surgery | Chage in study objectives | Changes to anesthesia and analgesics |
| Addition of painful procedures | Change in Principal Investigator | Addition of non-invasive sample collections |
| Death as an Endpoint | Housing of animals in a location that is not previously approved | Euthanasia to any AVMA-approved method |
| Any exceptions to regulations | Any changes that have the potential to impact personnel safety | Addition of sample collection times |
| change in or addition of a new USDA-regulated species | Change in or addition of new non-USDA-regulated species | Addition of strains with an unknown phenotype |
| Addition of minor survival surgery |
Effective Dates: April 28, 2026 through December 31, 2027