DPP4 and colorectal cancer: Two large meta-analyses of clinical trials studying the impact of alogliptin, linagliptin, saxagliptin, sitagliptin, and vildagliptin in the survival of patients with lung or colorectal cancer between 2007 and 2013, and prostate, pancreas, or breast cancer between 2007 and 2015, showed that DPP4 inhibition improved survival in patients with lung, prostate, and colorectal cancer [53,54].