RecruitingNot Applicable

Effect of Glucagon on Fasting Insulin Secretion and Glucose Metabolism in Subjects Without Type 2 Diabetes

United States60 participantsStarted 2025-04-01

Plain-language summary

Fasting hyperglycemia contributes disproportionately to nonenzymatic glycosylation and the microvascular complications of type 2 diabetes. However, little is known about the regulation of glucose concentrations in the fasting state relative to what is known about the postprandial state. The proposed experiment is part of a series of experiments designed to establish how glucagon and insulin interact with their receptors to control fasting glucose in health and in prediabetes.

Who can participate

Age range

25 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Individuals with normal or impaired fasting glucose and normal or impaired glucose tolerance Exclusion Criteria: * HbA1c less than 6.5% * Use of any glucose-lowering agents including metformin or sulfonylureas. * For female subjects: positive pregnancy test at the time of enrollment or study * History of prior upper abdominal surgery such as adjustable gastric banding, pyloroplasty and vagotomy. * Active systemic illness or malignancy. * Symptomatic macrovascular or microvascular disease.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in beta-cell responsivity induced by glucagon

Timeframe: Beta-cell responsivity will be calculated as the gradient of the relationship between glucose concentrations and insulin secretion rate during the study day over the 4 hours (0 to 240 minutes) of the study

Trial details

NCT IDNCT06424106

SponsorMayo Clinic

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-07-01

Contact for this trial

Kim Osmundson, CCRP

507-255-0907 Osmundson.Kimberly@mayo.edu

View on ClinicalTrials.gov More PreDiabetes trials