Researchers launch study to unravel mysteries of rare immune disorder sHLH

NCT ID NCT06339177

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aims to understand why some adults develop secondary hemophagocytic lymphohistiocytosis (sHLH), a serious immune condition causing fevers and organ damage. Researchers will follow 300 participants for up to 3 years, collecting blood samples and medical data to identify immune patterns and triggers. No new treatments are given, but findings may lead to better diagnosis and future therapies.

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 research could point toward better diagnostic tools and potential targets for future treatments for secondary HLH.

What could go wrong

This is an observational study, not a treatment trial. It will not directly provide new therapies, and results may take years to translate into clinical practice.

Disclaimer Read more

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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Conditions

The condition(s) this trial relates to.

cytokine release syndrome hemophagocytic syndrome Hyperferritinemia juvenile idiopathic arthritis Lymphohistiocytosis, Hemophagocytic macrophage activation syndrome secondary hemophagocytic lymphohistiocytosis

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

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

Locations

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

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

  • University of Pittsburgh

    RECRUITING

    Pittsburgh, Pennsylvania, 15261, United States

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