A Phase II Trial to Examine the Effect of Subcutaneous Exenatide (Bydureon®) on Glucose Control in Patients With Type I Diabetes

This is a multi-site randomized placebo controlled trial of Bydureon in patients with type I diabetes (T1D) of at least 2 years duration who may or may not still have detectable levels of C-peptide during a mixed meal tolerance test (MMTT). Bydureon is a recently approved long acting form of Exenatide. Because of the lack of safety data for Bydureon in children, we propose to conduct the trial in adults (\>18 yrs.). Both the subject and the study personnel will be blinded to treatment assignment. The randomization will be done, 1;1, by the coordinating site (at Yale). As a secondary analysis, we propose to determine whether the presence of residual insulin production modifies the drug effect. To do this, we plan to stratify patients for randomization on the basis of detectable C-peptide levels. We will therefore wait for the results of the C-peptide levels from the enrollment MMTT prior to randomization. The study investigators will not be told in which stratum the patient is being randomized and will be blinded to the C-peptide results of the MMTT until the conclusion of the study. Note: The primary and study completion dates were changed 4/2016 to reflect an extension of the recruitment and accrual periods.