Could a bladder pill help prevent diabetes?
NCT ID NCT04666636
First seen Jun 26, 2026 · Last updated Jul 08, 2026 · Updated 3 times
Summary
This phase 2 trial is testing whether mirabegron, a drug currently used for overactive bladder, can improve glucose tolerance and activate brown fat in people with prediabetes. Researchers will enroll 65 adults with a BMI of 27-45 and prediabetes. Participants will take mirabegron or a placebo daily for 16 weeks, and the study will measure changes in blood sugar, body composition, and metabolism.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Mirabegron (Myrbetriq)
- What this could lead to
- If it works, this could point toward a new treatment for prediabetes that improves blood sugar control and metabolism.
- What could go wrong
- This is a small, early-phase trial with only 65 participants. The drug is already approved for overactive bladder, but its effect on prediabetes is unproven, and side effects are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 65 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2020
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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35 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * BMI 27-45 * prediabetes (A1c 5.7-6.4) * impaired fasting glucose or impaired glucose tolerance Exclusion Criteria: * diabetes * chronic use of anti-diabetic medication * acute or chronic inflammatory condition * unstable medical condition * cancer * renal insufficiency * any contraindication for Mirabegron * BMI \>45
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Kentucky
RECRUITINGLexington, Kentucky, 40536, United States
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