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Simple blood test could catch type 1 diabetes years before symptoms appear

NCT ID NCT07118098

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Aug 25, 2026 · Updated 3 times

Summary

This study aims to identify people at increased risk of developing type 1 diabetes by testing for specific markers in the blood called autoantibodies. Children and adults aged 1 to 45 who have a family member or close friend diagnosed with type 1 diabetes before age 45 can join. Participants provide a small blood sample; if autoantibodies are found, they will be invited for further monitoring.

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

About 30,000 people

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

Started

Jun 2025

Expected to finish

Dec 2027

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.

Who is studied

Family and friends of people living with type 1 Diabetes. People with autoimmune disorders are of particular interest

Ages

1 year to 45 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: 1. Have given written informed consent to participate 2. Be aged between 1 and 45 years 3. Have a family relative with T1D or close friend diagnosed with symptomatic T1D at age \<45 years Exclusion Criteria: 1. Previous diagnosis of stage 3 T1D or other forms of diabetes 2. Unable/unwilling to consent to participation

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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.

  1. The places running it

    21 sites in 8 countries. 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

  • Angers University Hospital Center (CHU Angers)

    RECRUITING

    Angers, 49000, France

  • Avicenne Hospital

    RECRUITING

    Bobigny, 93000, France

  • CHRU de Nancy Hôpital de Brabois Enfant

    RECRUITING

    Vandœuvre-lès-Nancy, 54500, France

  • Centre Hospitalier Sud Francilien (CHSF)

    RECRUITING

    Corbeil-Essonnes, 91100, France

  • Centre Hospitalier Universitaire (CHU) de Nice

    RECRUITING

    Nice, 06200, France

  • DIAB-eCARE Hospices Civils de Lyon

    RECRUITING

    Lyon, 69003, France

  • Hospital Lariboisière APHP

    RECRUITING

    Paris, 75010, France

  • Hôpital Européen Georges-Pompidou

    RECRUITING

    Paris, 75015, France

  • Hôpital Necker-Enfants Malades

    RECRUITING

    Paris, 75015, France

  • Hôpital Pitié-Salpêtrière

    RECRUITING

    Paris, 75013, France

  • Institut National de la Santé et de la Recherche Médicale

    RECRUITING

    Paris, France

  • Jean Verdier Hospital

    RECRUITING

    Bondy, 93140, France

  • Katholieke Universiteit Leuven

    RECRUITING

    Leuven, Belgium

  • Kompetenzzentrum Diabetes Karlsburg

    RECRUITING

    Greifswald, 17489, Germany

  • Medical University of Silesia

    NOT_YET_RECRUITING

    Katowice, Poland

  • Medical University of Vienna

    RECRUITING

    Vienna, 1090, Austria

  • Motol University Hospital

    RECRUITING

    Prague, 150 06, Czechia

  • Nice-Lenval Pediatric Hospitals

    RECRUITING

    Nice, 06200, France

  • Robert Debre University Hospital

    RECRUITING

    Paris, 75019, France

  • San Raffaele Hospital

    RECRUITING

    Milan, 20132, Italy

  • University Medical Center Ljubljana

    RECRUITING

    Ljubljana, Slovenia

More trials for these conditions

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