Clinical Context The US Food and Drug Administration (FDA) has approved an extended-release formulation of exenatide injection as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes. This is the first approved medication administered once weekly for type 2 diabetes. The FDA has required the manufacturer to perform a randomized, double-blind, placebo-controlled trial of effects of the drug on the incidence of major adverse cardiovascular events, pancreatic cancer, kidney disease, serious hypoglycemia, and on potential biomarkers of medullary thyroid carcinoma (MTC). An MTC case series registry and Risk Evaluation and Mitigation Strategy (REMS) are also mandated. Study Synopsis and Perspective The US FDA approved a once-weekly extended-release formulation of exenatide injection ( Bydureon , Amylin Pharmaceuticals) as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes. It is the first once-a-week medic...