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Major study launches to unravel mysteries of rare still disease in kids and adults

NCT ID NCT05927454

Recruiting now Knowledge-focused Sponsor: Institut National de la Santé Et de la Recherche Médicale, France Source: ClinicalTrials.gov ↗

First seen Feb 15, 2026 · Last updated Jun 22, 2026 · Updated 17 times

Summary

This study will follow 500 adults and children with Still disease, a rare inflammatory condition causing fever, joint pain, and rash. Researchers aim to compare how the disease affects different age groups, identify early markers, and improve care. No new treatments are being tested; instead, the goal is to gather information to guide future research and therapies.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • RaDiCo-AcoStill

    RECRUITING

    Paris, Île-de-France Region, 75012, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

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 could lead to better understanding of Still disease, earlier diagnosis, and improved treatment strategies for both children and adults.

What could go wrong

This is an observational study, not a treatment trial. It will not directly test any new therapy, and results may take years to impact patient care.

Conditions

The condition(s) this trial relates to.

adult-onset Still disease juvenile idiopathic arthritis Rare Diseases systemic-onset juvenile idiopathic arthritis

As listed by the trial registrant

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

STILL DISEASE STILL DISEASE STILL DISEASE, JUVENILE ONSET STILL DISEASE, JUVENILE ONSET STILL'S DISEASE, ADULT-ONSET STILL'S DISEASE, ADULT-ONSET