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Scientists launch major study to unravel hidrosadenitis mysteries

NCT ID NCT04352036

Knowledge-focused Sponsor: Nantes University Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 following 465 people with hidrosadenitis (a painful skin condition) to identify different forms of the disease. Researchers hope that by understanding these variations, they can develop better, more personalized treatments. No new drugs or procedures are being tested—this is purely an observational study to gather information.

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 study could help doctors better understand different types of hidrosadenitis and tailor treatments to each patient's specific form of the disease.
What could go wrong
This is an observational study, not a treatment trial. It will not test any new therapy, and results may take years to influence patient care.

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 465 people

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

Started

Jan 2022

Expected to finish

Feb 2030

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

The population studied will relate to patients consulting or being hospitalized for Acute Hidrosadenitis, whatever its severity.

Ages

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

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: * Patient diagnosed with acute hidrosadenitis by a dermatologist * Patient agreeing to be part of the study Exclusion Criteria: * Major under guardianship * Protected persons

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Get notified about this study

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Conditions

The condition(s) this trial relates to.

hidradenitis suppurativa

As listed by the trial registrant

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

Acute hidrosadenitis

How to take part

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

  1. The places running it

    13 sites. 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

  • CH

    RECRUITING

    Le Mans, France

  • CH La Rochelle

    RECRUITING

    La Rochelle, France

  • CH bretagne sud

    RECRUITING

    Lorient, France

  • CHD Vendée

    RECRUITING

    La Roche-sur-Yon, France

  • CHRU Tours

    RECRUITING

    Tours, France

  • CHU Angers

    RECRUITING

    Angers, 49933, France

  • CHU Milétrie

    RECRUITING

    Poitiers, France

  • CHU Pontchaillou

    RECRUITING

    Rennes, France

  • CHU de Nantes - Dermatologie

    RECRUITING

    Nantes, France

  • Ch Saint-Brieuc

    RECRUITING

    Saint-Brieuc, France

  • Ch de Cornouaille

    RECRUITING

    Quimper, France

  • Chr D'Orléans

    RECRUITING

    Orléans, France

  • Chru Brest

    RECRUITING

    Brest, France