A Longitudinal Study of Familial Hypereosinophilia (FE): Natural History and Markers of Disease Progression
NCT00091871
This study is recruiting at 1 US site in 1 state, according to its ClinicalTrials.gov record last updated .
Summary
Eosinophils are a type of white blood cell. Elevated eosinophil levels can damage the heart, nerves, and other organs, in the syndrome known as hypereosinophilic syndrome (HES). Some individuals have a hereditary form of HES known as familial eosinophilia (FE). More research on the causation and mechanisms of HES is needed in order to design more effective and less toxic therapies. This study will investigate FE and its genetic causes, damage mechanisms, and disease markers (such as blood test abnormalities).
Shortened from the sponsor's brief summary. View official record on ClinicalTrials.gov
Conditions studied
- Eosinophilia
- Hypereosinophilic Syndrome
Eligibility basics and study details
- Study type
- Observational
- Phase
- Not applicable
- Ages
- 1 year to 100 years
- Sex
- All
- Healthy volunteers
- Accepted
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- Last updated on ClinicalTrials.gov
- September 16, 2026
These are the basic criteria only. The full inclusion and exclusion criteria are on the official record, and the study team decides who can take part.
US recruiting sites
Maryland · 1
- National Institutes of Health Clinical Center · Bethesda, MD
Source: ClinicalTrials.gov, data processed . Recruiting US sites filtered by distance and site status; summaries shortened.