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Pregnancy hormones may unlock secrets of skin inflammation

NCT ID NCT07291193

Knowledge-focused Sponsor: Institut Pasteur 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 how sex hormones, especially during pregnancy, change the immune cells in the skin. Researchers will compare pregnant women, non-pregnant women, and men, both with and without a skin condition called hidradenitis suppurativa. The goal is to understand how hormones influence skin immunity and inflammation, which could lead to better treatments.

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 240 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Mar 2031

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

As part of this study, adults (pregnant women, non-pregnant women, and men), healthy (not affected by HS) and affected by HS, will be recruited.

Ages

18 to 45 years

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: * Common criteria : * Subject\>18 years and \<45 years, * Written informed consent of the subject, * Subject affiliated to the Assurance Maladie (French Health System) except Aide Médicale d'Etat (French State Medical Aid), * Subject agrees that genomic analyses may be carried out on the samples * Specific criteria : * For pregnant women:Third trimester of pregnancy (between 29-37 weeks of amenorrhea). * For HS subjects: Subject with hidradenitis suppurativa lesions at the sampling sites. Exclusion Criteria: * Common criteria : * Subject immunocompromised, * Subject under legal protection (guardianship or curatorship), * Subject is unable to provide informed consent and to comply with the study requirements due to geographical, social, or psychiatric reasons, * Subject in other research whose procedures may influence the immune system, * Contraindication to any of medications listed in section 5.1 (antiseptic and local anesthetic used for biopsy(ies)), * Subject whose health condition does not permit participation in study procedures. * Specific criteria : * For no HS subjects : Scarred skin at the biopsy site, Subject with pre-existing and/or still active inflammatory skin conditions, Subject experiencing early menopause (women) or andropause (men).

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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.

Skin immunity

How to take part

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

  1. 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 ↗

  2. A doctor treating you

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More trials for these conditions

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