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Scientists investigate why exercise affects blood sugar differently each time

NCT ID NCT07209930

Knowledge-focused Sponsor: University College Dublin Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at how blood sugar levels change during exercise in healthy adults and those with type 1 diabetes. Participants will cycle after a standard breakfast, and their glucose will be tracked with a continuous monitor and finger-prick tests. The goal is to see if the body's response is consistent from one session to the next, which could help improve diabetes management.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
standardized exercise (cycling) and a standardized breakfast
What this could lead to
If successful, this could help personalize exercise recommendations for people with type 1 diabetes to better manage blood sugar levels.
What could go wrong
This is a small, early-stage observational study with only 24 participants. It is not testing a treatment, so it will not directly lead to new therapies.

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

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

About 24 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2025

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

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

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: (Healthy and T1D phases): * age between 18 and 60 years old; * being healthy individuals; * engagement in physical activity at least once a week; (T1D phase): * diagnosis of T1D for \>18 months; * hypoglycaemia self awareness. Exclusion Criteria: (Healthy and T1D phases) * presence of cardiovascular disease or contraindications to exercise; * infectious or inflammatory conditions; * chronic renal or liver disease; * pregnancy; * gestational diabetes; * diagnosed eating disorders; * any physical or mental condition preventing participation; (Healthy phase) * diabetes mellitus (type 1 or type 2); (T1D phase) * inability to self-manage diabetes.

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Conditions

The condition(s) this trial relates to.

Motor Activity type 1 diabetes mellitus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Exercise Glucose variability Healthy participants Type 1 diabetes (T1D)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • University College Dublin

    RECRUITING

    Dublin, Dublin, D04 V1W8, Ireland

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