DPP4 and type 2 diabetes mellitus: Thus, these results suggest that GLP-1RAs exhibit superior preventive effects on atherosclerotic CV events and can improve CV prognosis in T2D patients with a previous history of CV events (except ACS), and that such treatment effects could become apparent by, for example, comparing the results of CV outcomes trials with another class of incretin-based agents, namely dipeptidyl peptidase-4 (DPP-4) inhibitors [31–33].