The results suggest that the neutral effect of sitagliptin on weight might be associated with the suppression of fasting serum ghrelin levels.

For the study, forty-four subjects with type 2 diabetes were randomly assigned to receive sitagliptin or medical nutrition therapy (MNT) for 12 weeks. And changes in anthropometric variables, glycemic control, insulin resistance, lipid parameters, and total ghrelin levels were evaluated at baseline and following 12 weeks of treatment.

The results showed significant decreases in body weight and body mass index were observed over the entire study period in both treatment groups. Glycosylated hemoglobin and postprandial plasma glucose levels were statistically significant decreased in the groups receiving sitagliptin compared with baseline values (p=0.021 and p=0.021, respectively), while they were unchanged in the groups receiving MNT. Plus there was a significant decrease in total ghrelin in the groups receiving sitagliptin (p=0.04) compared with baseline values but not in the groups receiving MNT (p=0.46) at the end of the 12 weeks.

In this study of patients with type 2 diabetes, treatment with sitagliptin was associated with a significant decrease in serum ghrelin levels. These results suggest that the neutral effect of sitagliptin on weight might be associated with the suppression of fasting serum ghrelin levels.

Diabetes Research and Clinical Practice, 12/02/2011

From ADA/Diabetes Pro

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