NCT05934058 - Genomic and Dietary Aspects in Gastric Cancer Risk

The Stomach cancer Pooling project (StoP) Consortium dataset has grown to the current number of 35 studies from Europe, America, Middle East and Eastern Asia. It will be used as the cornerstone upon which the investigation on the dietary and lifestyle determinants of gastric cancer (GC) will be built. It will allow the analyses of relatively infrequent habits or exposures, genetic factors as well as to perform sufficiently powered analyses of interactions and subgroups that may present relevant heterogeneity in the etiological correlates of GC. The potential of genomics to personalize and thereby improve diagnosis, treatment, and prognosis of individuals has long been recognized, but so far evidence of the opportunity for genomics to drive prevention remains limited. Recent advances in research on Polygenic Risk Score (PRS) have created new interest about the use of genetic information in prevention of common diseases and its application to risk stratification. A long-lasting open question is whether common genetic variants used to build PRS are able to predict the risk of developing complex diseases with enough power to be used in a clinical setting. The lack of large enough dataset able to allow an unbiased PRS validation, hampered this question to be answered for many years. This study builds upon the StoP project (a consortium collecting data from about 13,500 GC cases and 32,000 controls) and the UK Biobank (480 GC cases and 338,000 controls) to develop a Polygenic Risk Score for gastric cancer.