![OPTN Public Comment Proposal to Update HLA and Ethnic Frequencies used to Calculate CPRA](https://unos.org/wp-content/uploads/News_System-changes-1-line-e1560353318566.png)
OPTN Public Comment Proposal to Update HLA and Ethnic Frequencies used to Calculate CPRA
The OPTN Histocompatibity Committee is considering updating the HLA and ethnic frequencies used to determine the Calculated Panel Reactive Antibody (CPRA) formula used for kidney and pancreas allocation, and invites transplant professionals and the public to compare formulas and provide feedback.