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Diabetes study reveals hidden impact on exercise performance

NCT ID NCT02051504

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

What the study statuses mean

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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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how type 1 diabetes and long-term blood sugar control (HbA1c) affect the body's ability to deliver and use oxygen during exercise. Researchers compared 79 people with and without diabetes to understand why fitness levels may be lower in those with high blood sugar. The goal was to learn more about how diabetes impacts muscle oxygen use, not to test a new treatment.

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.

Participants

79 people

The number who actually took part.

Start date

Mar 2010

Finished

Dec 2013

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.

Who is studied

The two groups of patients with Type 1 diabetes are recruited from primary care clinics (university hospital of Lille and hospital of Roubaix, France) among patients with Type 1 diabetes for more than 1 year and free from micro and macrovascular complications. Healthy participants are selected from a list (n=250) drawn up from patients' friends and contacts. Each healthy control is chosen to strictly match a patient with type 1 diabetes according to gender, age, physical activity levels, and tobacco status.

Ages

18 to 40 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: * Patients with Type 1 diabetes (duration of Type 1 diabetes \> 1 year and \< 20 years) * Healthy subjects Exclusion Criteria: Exclusion Criteria for patients with Type 1 diabetes: * Maturity onset diabetes of the young, mitochondrial diabetes, Type 2 diabetes * Macro or microvascular complications of diabetes Exclusion Criteria for healthy controls : • Diabetes (Glycaemia \> 11 mmol/L two hours after the OGTT) Exclusion Criteria for all subjects : * Obesity (Body Mass Index \> 30 kg/m2) * Contra-indication to maximal exercise * Pregnant or breast-feeding women * Other chronic disease than diabetes * Muscle or articular problems

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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.

Type 1 diabetes

Contacts and locations

Locations

  • CHRU Lille

    Lille, 59037, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.