- Conditions
- Lymphohistiocytosis, Hemophagocytic, Secondary Hemophagocytic Lymphohistiocytosis, Macrophage Activation Syndrome, Hyperinflammatory Syndromes
- Interventions
- Not listed
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 18 Years to 120 Years
- Enrollment
- 300 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2031
- U.S. locations
- 2
- States / cities
- Bethesda, Maryland • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced May 21, 2026, 11:54 PM EDT