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Pathophysiological explorations of red blood cells

NCT ID NCT03541525

NEW Sponsor: Imagine Institute 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 09, 2026 · Last updated Sep 09, 2026

Summary

GR-Ex is a program labelled by Labex (Laboratory of Excellence) by the French Ministry of Higher Education and Research. This program aims to develop the means to improve knowledge in the physiology and pathologies of erythropoiesis, red blood cells and iron metabolism, and to develop new therapeutic protocols capable of providing added value in terms of innovation.

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 3,750 people

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

Started

Oct 2017

Expected to finish

Oct 2037

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

Inclusion of patients affected by red blood cell disorder and their non affected relatives

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: * To be affected or have a family history of disease bound to the red blood cell, * For adult subjects, have signed an informed consent form, * For minor or major under legal safeguard subjects, the form must be signed by both parents (for minors) or by the legal representative, * Be affiliated to health insurance. Exclusion Criteria: * Being deprived of freedom

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Conditions

The condition(s) this trial relates to.

erythrocyte disorder

As listed by the trial registrant

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

Red blood cell disorder

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    25 sites in 3 countries. 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

  • CHU Amiens-Picardie

    RECRUITING

    Amiens, France

  • CHU Hôpital de la Mère et de l'enfant Lagune

    NOT_YET_RECRUITING

    Cotonou, Benin

  • CHU Kremlin Bicetre

    RECRUITING

    Le Kremlin-Bicêtre, France

  • CHU de Niort

    RECRUITING

    Niort, France

  • CHU de Rouen

    RECRUITING

    Rouen, France

  • CHU de la Guadeloupe

    NOT_YET_RECRUITING

    Pointe-à-Pitre, Guadeloupe

  • Groupe Hospitalier Diaconesses Croix Saint Simon

    RECRUITING

    Paris, France

  • Hopital Henri Mondor

    RECRUITING

    Créteil, France

  • Hopital Necker - Enfants malades

    RECRUITING

    Paris, France

  • Hopital de la conception

    RECRUITING

    Marseille, France

  • Hôpital Armand Trousseau

    RECRUITING

    Paris, France

  • Hôpital Avicenne

    RECRUITING

    Bobigny, France

  • Hôpital Beaujon

    RECRUITING

    Clichy, France

  • Hôpital Cochin

    RECRUITING

    Paris, France

  • Hôpital Européen Georges-Pompidou

    RECRUITING

    Paris, France

  • Hôpital Louis Mourier

    RECRUITING

    Colombes, France

  • Hôpital Pellegrin

    RECRUITING

    Bordeaux, France

  • Hôpital Privé d'Antony

    RECRUITING

    Antony, France

  • Hôpital Robert Debré

    NOT_YET_RECRUITING

    Paris, France

  • Hôpital Saint Eloi

    RECRUITING

    Montpellier, France

  • Hôpital Saint Louis

    RECRUITING

    Paris, France

  • Hôpital Saint-Antoine

    RECRUITING

    Paris, France

  • Hôpital d'Enfants de la TIMONE

    RECRUITING

    Marseille, France

  • Hôpital national d'instruction des armées Bégin

    RECRUITING

    Saint-Mandé, France

  • Institut Pasteur

    RECRUITING

    Paris, France

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