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Massive study aims to unravel mysteries of eosinophilic diseases

NCT ID NCT00267501

Knowledge-focused Sponsor: Children's Hospital Medical Center, Cincinnati Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study is looking at how eosinophils (a type of white blood cell) grow, move, and cause inflammation in people with eosinophilic gastrointestinal disease, other eosinophilic inflammatory conditions, or food allergies. Researchers will also study healthy volunteers and family members for comparison. The goal is to better understand these conditions, not to test a 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 lead to a deeper understanding of eosinophilic diseases and food allergies, potentially pointing toward new treatments.
What could go wrong
This is an observational study, not a treatment trial. It is designed to gather knowledge, not to test a therapy, so direct patient benefits are unlikely in the near term.

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 5,000 people

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

Start date

May 2005

Expected to finish

Jan 2050

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

Patients with eosinophilic disorders and patients without eosinophilic disorders to serve as normal controls

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Signed informed consent obtained from the patient or parent/guardian. Assent will be obtained from all minors 11 years of age and older. * Carrying a diagnosis of eosinophilic gastrointestinal disease, eosinophilic inflammatory disease, or food allergy OR family member, or normal control

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Conditions

The condition(s) this trial relates to.

Eosinophilia eosinophilic gastrointestinal disease food allergy

As listed by the trial registrant

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

Eosinophilic gastrointestinal disease eosinophilic inflammatory disease 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

  • Cincinnati Children's Hospital Medical Center

    RECRUITING

    Cincinnati, Ohio, 45229-3039, United States

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