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Frozen vs. fresh: can your allergy test be trusted?

NCT ID NCT06872996

Knowledge-focused Sponsor: Centre Hospitalier Régional d'Orléans Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at whether frozen or stored foods can be used for allergy skin prick tests instead of fresh foods. Researchers will test 100 adults with known food allergies using both fresh and stored foods to see if the results match. The goal is to make allergy testing easier and more reliable when fresh foods aren't available.

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 100 people

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

Started

Apr 2025

Expected to finish

Oct 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.

Ages

18 years 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. Aged 18 and over. 2. Having a diagnosis of food allergy(ies) due to one or more of the food allergen studied, previously made by an allergologist, of grade 2 to 3 according to the Ring and Messmer classification. 3. Having given consent to participate in the study. The diagnosis is made by the allergologist of the department due to the presence of a compatible clinical history implicating the tested allergen, the presence of evidence of sensitization to the allergen (positive prick-test and/or positive specific IgE assays), or even a positive oral allergen reintroduction test. Exclusion Criteria: 1. Anaphylactic reaction dating less than 6 weeks 2. Hospitalization for asthma in the past 3 months 3. History of grade 4 anaphylactic reaction according to the Ring and Messmer classification. 4. Systemic antihistamine treatment in the 7 days preceding the test 5. Systemic beta-blocker treatment on the day of the test. 6. Protected person (under guardianship or curatorship) 7. Person under judicial supervision 8. Persons deprived of liberty 9. Person not affiliated with a social security insurance 10. Pregnant or breastfeeding women

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Conditions

The condition(s) this trial relates to.

food allergy

As listed by the trial registrant

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

Food allergy

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

  • Centre Hospitalier Universitaire d'Orléans

    RECRUITING

    Orléans, 45067, France

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