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Can we predict type 1 diabetes before it starts?

NCT ID NCT02184676

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 followed 512 children born to parents with type 1 diabetes to see if early immune system changes and other factors could predict who might develop the disease. Researchers looked at blood markers, gut bacteria, and family environment. The goal was to better understand how type 1 diabetes begins, 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.

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

512 people

The number who actually took part.

Started

May 2015

Finished

May 2019

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

1 day and older

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: 1. Mother and/or father with type 1 diabetes * age \> 18 years * type 1 diabetes : insulin-dependent diabetes positive for autoantibodies against insulin and/or GAD and/or IA-2 and/or ZnT8 at the time of diagnosis * planning to give birth or having given birth since less than 8 months * agreeing to participate upon written informed consent * covered by the French social security system 2. Mother/father without Type 1 diabetes * age \> 18 years old * with a spouse with type 1 diabetes : insulin-dependent diabetes positive for autoantibodies against insulin and/or GAD and/or IA-2 and/or ZnT8 at the time of diagnosis * planning to give birth or having given birth since less than 8 months * agreeing to participate upon written informed consent * covered by the French social security system 3. Children born to mother and/or father with type 1 diabetes * age \< 8 months * with at least one parent with T1D * with both parents agreeing to participate * both parents covered by the French social security system Exclusion Criteria: 1\) Mother/father * secondary forms of diabetes * monogenic forms of diabetes 1 or 2) For the mother * malignant neoplastic or psychiatric disease 3 ) Newborns of mother/father with type 1 diabetes * Severe foetal disease * Severe congenital malformation * Congenital measles

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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

Contacts and locations

Locations

  • Cochin Hospital

    Paris, 75014, France

More trials for these conditions

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