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Can intense workouts reverse diabetes risk after pregnancy?

NCT ID NCT07566845

Knowledge-focused Sponsor: Odense University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compares 20 women who had gestational diabetes with 20 who did not, all matched by age and weight. Researchers will measure body composition, insulin sensitivity, and other metabolic markers before and after 8 weeks of high-intensity interval training. The goal is to understand unique metabolic changes and whether exercise can improve them.

What this could mean

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

Active substance
high-intensity interval training (HIIT)
What this could lead to
If successful, this study could point toward exercise programs that reduce diabetes risk in women who had gestational diabetes.
What could go wrong
This is a small, early-stage study with only 40 participants. Results may not apply to all women, and the training may not produce lasting benefits.

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 40 people

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

Started

Mar 2026

Expected to finish

Nov 2028

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

25 to 45 years

Sex

Female participants only

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: * Age 25-45 years * BMI 20-35 kg/m2 * 2-8 years since the last pregnancy * No known diabetes or PCOS * No previous bariatric surgery * No known disease * Be drug-naive * Have a regular menstrual cycle (23-35 days) * Not be pregnant or planning pregnancy during the study period * Low or moderate level of physical activity must be (max 2 hours of moderate exercise weekly). * All participants should be able to provide informed consent * Women without pGDM must not have known hypertension or first-degree relatives with diabetes. Exclusion Criteria: * Abnormal cardiac stethoscopy, ECG or screening blood tests * Positive plasma GAD-65 antibodies * Positive plasma choriogonadotropine * Undiagnosed T2D based on fasting plasma glucose (≥ 7.0 mmol/mol), plasma HbA1c (≥ 48 mmol/mol), or 2-h plasma glucose during an oral glucose tolerance test (OGTT) (≥ 11.1 mmol/mol) * Dyslipidemia (plasma LDL-cholesterol \> 5.0 mmol/l) * In women with pGDM: Undiagnosed severe hypertension (blood pressure \> 160/100) * In women without pGDM: Undiagnosed hypertension (blood pressure \>140/90 mmHg) or impaired glucose tolerance (fasting plasma glucose at 6.16.9 mmol/l, plasma HbA1c at 42-47 mmol/mol, or a 2-h glucose at 7.8-11.0 mmol/l during an OGTT).

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Conditions

The condition(s) this trial relates to.

gestational diabetes type 2 diabetes mellitus

As listed by the trial registrant

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

Gestational diabetes mellitus (GDM) High intensity interval training Type 2 diabetes (T2DM)

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Steno Diabetes Center Odense, Odense University Hospital

    Odense, Region Syddanmark, 5000, Denmark

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