For Healthcare Professionals

INTO-HLH: A Disease Registry for Patients With Hemophagocytic Lymphohistiocytosis (HLH)

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About the study

The purpose of this observational study is to collect data on the natural history of disease of patients with Hemophagocytic Lymphohistiocytosis (HLH) including diagnosis, treatments, responses, and outcomes.
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Who can take part

You may be eligible to participate in the study if you meet the following criteria:

INCLUSION CRITERIA

Inclusion Criteria:

  1. Patients with clinically suspected or confirmed HLH, including those meeting the HLH-2004 diagnostic criteria (primary or secondary forms, including malignancy) and other forms of HLH (macrophage activation syndrome [MAS], cytokine release syndrome [CRS], etc.)
  2. Signed and dated informed consent and assent (adolescents)

EXCLUSION CRITERIA

Exclusion Criteria:

* None

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Study Locations

Enter your ZIP code/Postal code/PIN code to locate study sites near you:

How to Apply


Contact the study center to learn if this study is a good match for you.
Phone iconCall (513) 803-9063Email iconEmail Study Center

Study Details


Contition

Hemophagocytic Lymphohistiocytoses

Participants Needed

200

Est. Completion Date

Jan 31, 2026

Treatment Type

OBSERVATIONAL


Sponsor

Children's Hospital Medical Center, Cincinnati

ClinicalTrials.gov NCT Identifier

NCT05277272

Study Number

Sobi.HLH-RWE102

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