Notably, GLP1R expression appears to have no significant impact on overall survival in cancers such as esophageal squamous cell carcinoma, head-neck squamous cell carcinoma, renal papillary cell carcinoma, liver hepatocellular carcinoma, lung adenocarcinoma, ovarian cancer, and pancreatic cancer. This evidence concerns the gene GLP1R and head and neck squamous cell carcinoma.