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Isolation experiment: 9 volunteers head to remote island to unlock immune secrets

NCT ID NCT07065253

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 Jul 23, 2026 · Updated 2 times

Summary

This study looks at how living in extreme isolation for a year affects the immune system. Nine healthy volunteers will spend from November 2025 to November 2026 on the remote Kerguelen Islands. Before they leave, researchers collect blood, saliva, stool, urine, and hair samples to establish a baseline for later comparison.

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.

Started

Sep 2025

Finished

Sep 2025

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Who is studied

French civic service volunteer

Ages

18 years and older

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 : * healthy people aged \> 18 years * Participant affiliated with or benefiting from a social security system * Participant has signed informed consent * Participant staying as an overwintering member at Kerguelen from November 2025 to November 2026 Exclusion Criteria: * age \< 18 years * Pregnant, breastfeeding, or postpartum woman * immunocompromised people (primary immunodeficiency, HIV infection or immunosupressive treatment) * Person refusing to participate in the study * Person with a history of autoimmune disease - -Person deprived of liberty by judicial or administrative decision * Person undergoing involuntary psychiatric treatment * Person subject to a legal protection measure

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As listed by the trial registrant

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

Contacts and locations

Locations

  • Paul Emile Victor Polar Institute

    Plouzané, 29280, France

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