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Blood test may tell if kids have outgrown food allergies

NCT ID NCT03776474

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 18, 2026 · Updated 2 times

Summary

This completed study looked at levels of a specific antibody (IgG4) to cow's milk and egg in 135 children, both with and without allergies. Researchers wanted to see if these levels could help tell which children have outgrown their allergy. The study involved a single blood draw and did not test any new treatment.

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 research could help doctors better understand which children have outgrown their food allergy and which still need to avoid certain foods.
What could go wrong
This is an observational study, not a treatment trial. It aims to gather knowledge, not to test a new therapy, so there is no direct benefit for participants.

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

135 people

The number who actually took part.

Started

Nov 2020

Finished

Sep 2023

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

Minors in consultation or hospitalized at Necker Hospital

Ages

1 month to 18 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: * Minors aged 0 to 18 * In consultation or hospitalized for an oral food challenge for milk or eggs * To undergo a blood test Exclusion Criteria: Minors with immune deficiency, chronic inflammatory disease or immunosuppressive or immunomodulator treatment

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Conditions

The condition(s) this trial relates to.

food allergy Heiner syndrome

As listed by the trial registrant

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

Food allergy in children

Contacts and locations

Locations

  • Hôpital Necker Enfants malades

    Paris, 75015, France

More trials for these conditions

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