Research conducted in genome-wide association studies (GWAS) and multi-trait analyses in 5,521 DCM participants with structurally normal hearts identified 13 loci associated with DCM, including FLNC, FHOD3, BAG3, ALPK3, TTN, and GATA4 [PMID: 33495596]. This evidence concerns the gene BAG3 and familial dilated cardiomyopathy.