What is Integrated Review Group (IRG)?
Integrated Review Group (IRG) meaning A cluster of scientifically related Study Sections. Applications reviewed by the Center for Scientific Review are often initially assigned at the IRG level and then subsequently assigned to a specific Study Section or Special Emphasis Panel. This two-stage process assignment process provides the opportunity to gain a broad perspective of the areas of science covered by the IRG and to appreciate changes in emphasis and the emergence of new areas while ensuring each application is reviewed by the most appropriate review group.
reference: Glossary of NIH Terms