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Morning vs. afternoon workouts: which is better for teens with type 1 diabetes?

NCT ID NCT06803446

Knowledge-focused Sponsor: Lille University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looks at how the time of day (circadian rhythm) affects blood sugar levels during different types of exercise in teenagers with type 1 diabetes. Researchers will have 18 teens do continuous and intermittent exercise on a stationary bike at different times. They will track how long blood sugar stays in a healthy range, and how often it goes too low or too high.

What this could mean

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

What this could lead to
If successful, this could help teens with type 1 diabetes choose the best time of day to exercise for better blood sugar control.
What could go wrong
This is a small, early-phase study with only 18 participants, so results may not apply to everyone. It is observational and does not 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.

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 18 people

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

Started

Dec 2024

Expected to finish

Dec 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

10 to 16 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Children and adolescents aged 10 to 16; * Living with type 1 diabetes for at least 1 year with HbA1c less than or equal to 12%; * Socially insured ; * Having given their written consent to participate in the research, as well as that of their legal guardians; * Willing to comply with all research procedures and duration. Exclusion Criteria: * Clinically significant microvascular complications: nephropathy (estimated glomerular filtration rate less than 40 ml/min), neuropathy or severe proliferative retinopathy as assessed by the investigator; * Recent acute macrovascular event (\< 3 months), e.g. acute coronary syndrome or cardiac surgery; * Abnormal blood picture and/or anemia; * Current pregnancy; * Other serious medical condition likely to interfere with study participation or ability to complete exercise periods in the judgment of the investigator (e.g., orthopedic limitation); * Inability to receive informed information; * Inability to participate in the entire study; * Lack of social security coverage; * Refusal to sign the consent form.

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Conditions

The condition(s) this trial relates to.

type 1 diabetes mellitus

As listed by the trial registrant

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

Type 1 diabetes

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

  • Eurasport

    RECRUITING

    Loos, Nord, 59120, France

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