The Effect of Tirzepatide on α and β Cell Function and Insulin Sensitivity in Patients With Type 2 Diabetes Mellitus

This is a study for participants with type 2 diabetes mellitus. The main purpose of this study is to learn more about how tirzepatide, semaglutide and placebo affect the body's ability to respond to blood sugar levels after a meal. The study will last up to 40 weeks, including a 28-week treatment period.