The use of once-weekly exenatide in type 2 diabetes mellitus is well supported, but little is known about its effectiveness in type 1 diabetes. The objective of this study was to determine the clinical efficacy of once-weekly exenatide on glycemic control in patients with type 1 diabetes when added to basal-bolus insulin therapy.
For this retrospective study, patients with type 1 diabetes, aged 18 years and older, receiving continuous subcutaneous insulin infusion, using a continuous glucose monitoring device or regularly measuring blood glucose levels and receiving 2 mg of exenatide once weekly for at least 3 months were included. Demographic information, glycated hemoglobin (A1C), body weight, body mass index, systolic and diastolic blood pressures, total daily insulin dose, basal and bolus insulin doses, 28-day continuous subcutaneous insulin infusion glucose average and incidence of hypoglycemia were collected at baseline and 3 months after beginning therapy with once-weekly exenatide.
An electronic medical record search identified 11 patients with type 1 diabetes who met the inclusion criteria. Comparing baseline and 3 months after initiation of once-weekly exenatide revealed reductions of 0.6% in A1C (p=0.013), 3.7% in body weight (p=0.008), 1.7 kg/m2 in body mass index (p=0.003), 13% in total daily insulin dose (p=0.011) and 9.3 units in bolus insulin dose (p=0.015).
This study revealed that the addition of once-weekly exenatide to insulin therapy for type 1 diabetes patients leads to significant improvements in A1C, body weight, body mass index and insulin doses.
Traina, Andrea N.; Lull, Melinda E.; Hui, Adrian C.; Zahorian, Toni M.; and Lyons-Patterson, Jane (2014). "Once-Weekly Exenatide as Adjunct Treatment of Type 1 Diabetes Mellitus in Patients Receiving Continuous Subcutaneous Insulin Infusion Therapy." Canadian Journal of Diabetes 38.4, 269-272.
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