Changes in Bone Turnover With Exposure to a GLP-1 Receptor Agonist

• Status: Terminated
• Trial end date: 2015-08-01
• Target enrollment: 0
• Participant gender: Female

Summary

The purpose of this study is to determine changes in bone turnover markers and calcitonin following the initiation of exenatide compared to placebo in postmenopausal women wtih type 2 diabetes.

Hypothesis 1a: Bone resorption (measured by osteocalcin and bone-specific alkaline phosphatase) will be lower and bone formation (measured by type I collagen crosslinked aminoterminal peptide in urine (Urine NTX)) will be higher when subjects are treated with exenatide compared to when subjects are treated with placebo.

Hypothesis 1b: Calcitonin levels will not vary significantly between periods of treatment with exenatide vs. placebo.

• Phase: Phase 4
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: University of Alabama at Birmingham
• Collaborator: Amylin Pharmaceuticals, LLC.
• Treatments: Exenatide

Criteria

Inclusion Criteria:

• Postmenopausal women (as defined by age ≥45 years old or amenorrhea for >2years)

• Type 2 DM currently not on diabetes-specific medication(s) or treated with monotherapy of metformin or a sulfonylurea. Patients treated with insulin monotherapy will also be eligible if the total daily dose of insulin is ≤10units. If on a medication for diabetes prior to study entry, the medication can be discontinued for 2 weeks prior to study initiation.

• Hemoglobin A1c (HbA1c) of 6.5-9.0%

Exclusion Criteria:

• Use of an incretin mimetic (i.e. exenatide, liraglutide), a DPP-4 inhibitor (i.e. sitagliptin, saxagliptin), a thiazolidinedione, or oral glucocorticoids in the 6 months prior to the study will not be eligible

• Known osteoporosis or patients treated with an osteoporosis-specific medication (bisphosphonate, teriparatide) or estrogen (including Selective Estrogen Receptor Modulators (SERMs)) or those who anticipate imminent treatment with one of these medications will be excluded from the study

• Chronic kidney disease (calculated GFR <30 ml/min) or a disease known to affect bone turnover (i.e. Paget Disease, Osteogenesis Imperfecta, HIV) will be excluded from the study.

• History of pancreatitis