Brain insulin spray tested during exercise in overweight volunteers
NCT ID NCT07466173
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at how insulin delivered to the brain (via nasal spray) changes the immune system's response to exercise in overweight individuals. Eight participants will bike while receiving either insulin or a placebo spray. The goal is to understand the link between brain insulin resistance and immune function during physical activity.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- intranasal insulin spray
- What this could lead to
- If it works, this could help explain how brain insulin resistance affects immune responses during exercise in overweight individuals.
- What could go wrong
- This is a very small, early-stage study (8 people) that only measures short-term effects. It may not lead to any treatment or apply to the general population.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 8 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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Jun 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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18 to 30 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 \> 28 kg/m2 * no known primary disease * hormonal contraception with a single-phase preparation Exclusion Criteria: * alcohol or drug abuse * At screening: Hb \< 12 g/dl for women and Hb \< 14 g/dl for men * Any (clinical) condition that would endanger participant's safety or question scientific success according to a physician's opinion.
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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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Ulm University Hospital
Ulm, 89081, Germany
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Other studies related to the condition(s) this trial covers.
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