Based on univariate COX Regression analysis, we then verified 7 ARLNRs that were correlated to prognoses of PAAD patients, such as TRAF3IP2-AS1, AC068580.2, Z97832.2, CASC8, ZNF326-DT, AC015660.1 and PAN3-AS1. Here, CASC8 is linked to pancreatic adenocarcinoma.