Diabetic kidney disease (DKD) remains a leading cause of morbidity and death despite advancements in treatment; however, recent cardiovascular outcome trials have highlighted the potential benefits of glucagon-like peptide-1 (GLP-1) receptor agonists and sodium-glucose cotransporter 2 (SGLT2) inhibitors in managing chronic kidney disease (CKD) and cardiovascular risks in type 2 diabetes (T2DM) patients, leading to recommendations for their use following metformin in clinical guidelines. The gene discussed is GCG; the disease is type 2 diabetes mellitus.