About this trial
Mirabegron (Myrbetriq®, Astellas) is a highly specific and well-tolerated ß3 agonist marketed for overactive bladder. This trial will assess the effects of mirabegron on glucose tolerance and adipose tissue in prediabetic patients
Eligibility criteria
This trial accepts healthy volunteersQualifiers
BMI 27-45
prediabetes (A1c 5.7-6.4)
impaired fasting glucose or impaired glucose tolerance
Disqualifiers
diabetes
chronic use of anti-diabetic medication
acute or chronic inflammatory condition
unstable medical condition
Trial design
Parallel
Treatments tested in this trial
Placebo
DrugParticipants will take one pill (placebo) daily for the first week and two pills daily for the remaining 15 weeks.
Mirabegron
DrugParticipants will take one pill (50mg Mirabegron) daily for the first week. For week two, participants will take two pills (50mg and 25mg Mirabegron). Unless there are side effects, for the remaining 14 weeks participants will take two pills (50mg each) daily.
Mirabegron 50 MG
DrugParticipants will take one pill (50mg Mirabegron) daily between visit 2 and visit 3
Mirabegron 100 mg
Drugparticipants will be given 6 weeks of mirabegron (25 mg) and will take 1 pill once per day for 4-6 weeks. Next participants will be given 6 weeks of mirabegron (50 mg) and take 1 pill once per day for 4-6 weeks. Last participants will be given 6 weeks of mirabegron (100 mg) and take 1 pill once per day for 4-6 weeks.
Treatment groups
Trial outcomes
Primary outcomes
Change in Glucose Tolerance
The standard oral glucose tolerance test (OGTT) using 75g glucose will be used to assess tolerance.
Change in Body Composition
Body composition (percent body fat) will be measured using dual-energy X-ray absorptiometry (DEXA).
Change in Resting Metabolic Rate
Resting Metabolic Rate (RMR) will be measured using indirect calorimetry.
Change in Brown Adipose Tissue Activity
Brown adipose tissue (BAT) activity will be measured using water-vest cold stimulation combined with positron emission tomography (PET-CT).
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Philip Kern
Lead sponsor
University of Kentucky
Sponsor institution
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborator