Simple blood test could catch type 1 diabetes years before symptoms appear
NCT ID NCT07118098
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
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About 30,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2025
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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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
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1 year to 45 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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.
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The places running it
21 sites in 8 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Angers University Hospital Center (CHU Angers)
RECRUITINGAngers, 49000, France
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Avicenne Hospital
RECRUITINGBobigny, 93000, France
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CHRU de Nancy Hôpital de Brabois Enfant
RECRUITINGVandœuvre-lès-Nancy, 54500, France
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Centre Hospitalier Sud Francilien (CHSF)
RECRUITINGCorbeil-Essonnes, 91100, France
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Centre Hospitalier Universitaire (CHU) de Nice
RECRUITINGNice, 06200, France
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DIAB-eCARE Hospices Civils de Lyon
RECRUITINGLyon, 69003, France
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Hospital Lariboisière APHP
RECRUITINGParis, 75010, France
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Hôpital Européen Georges-Pompidou
RECRUITINGParis, 75015, France
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Hôpital Necker-Enfants Malades
RECRUITINGParis, 75015, France
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Hôpital Pitié-Salpêtrière
RECRUITINGParis, 75013, France
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Institut National de la Santé et de la Recherche Médicale
RECRUITINGParis, France
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Jean Verdier Hospital
RECRUITINGBondy, 93140, France
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Katholieke Universiteit Leuven
RECRUITINGLeuven, Belgium
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Kompetenzzentrum Diabetes Karlsburg
RECRUITINGGreifswald, 17489, Germany
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Medical University of Silesia
NOT_YET_RECRUITINGKatowice, Poland
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Medical University of Vienna
RECRUITINGVienna, 1090, Austria
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Motol University Hospital
RECRUITINGPrague, 150 06, Czechia
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Nice-Lenval Pediatric Hospitals
RECRUITINGNice, 06200, France
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Robert Debre University Hospital
RECRUITINGParis, 75019, France
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San Raffaele Hospital
RECRUITINGMilan, 20132, Italy
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University Medical Center Ljubljana
RECRUITINGLjubljana, Slovenia
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