Quantifying the effect of exenatide and insulin glargine on postprandial glucose excursions in patients with type 2 diabetes.

In this report, we quantify the effects of exenatide and glargine on the relative contributions of fasting and postprandial glucose (PPG) excursion to overall hyperglycemia based on self-monitored blood glucose. After 26 weeks of treatment, insulin glargine reduced fasting glucose to a greater extent than exenatide without significant effect on PPG excursion. The principal effect of exenatide on hyperglycemia was mitigating the rise in PPG with moderate improvement on fasting glucose. These findings may be limited by the fact that glucose measurements were collected through self-monitoring with six time points measured during the daytime, the meals were not standardized and the exact time for glucose measurements was unknown.