Several variants not previously reported in CEA GWAS were mapped to genes with potential role in cancer such as C15orf3956 (rs143001709; P = 1.31 × 10−8), ST6GAL157 (rs73187787; P = 3.36 × 10−11), and CCDC13858 (rs10179849; P = 6.55 × 10−19). Here, CEACAM5 is linked to cancer.