The Effect of Exenatide on Weight and Hunger in Obese, Healthy Women

This study will look at the effect of exenatide, a drug which has been approved for the treatment of type 2 diabetes, on body weight, appetite and energy expenditure among moderately obese women without diabetes. The study is 35 weeks long and includes 19 outpatient visits. Participants will receive exenatide for 16 weeks and placebo for 16 weeks with a 3 week rest period in between. Neither participants nor investigators will know whether exenatide or placebo is being administered. Participants will be started randomly on either exenatide or placebo. Our hypothesis is that treatment with exenatide will curb appetite and lead to weight loss and may lead to changes in energy expenditure.