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Genetic Study of Immunodeficiency: Search for New Genetic Causes for Primary Immunodeficiencies
Sponsor: University Children's Hospital, Zurich
Summary
Individuals with suspected primary immunodeficiency will be studied and the results compared with healthy controls. Primary immunodeficiency may manifest as recurrent, severe or unusual infections as well as signs and symptoms of immune dysregulation such as autoimmunity or lymphoproliferation.
Key Details
Gender
All
Age Range
Any - Any
Study Type
OBSERVATIONAL
Enrollment
500
Start Date
2016-02
Completion Date
2027-12
Last Updated
2026-05-14
Healthy Volunteers
Yes
Interventions
Skin Biopsy
A punch biopsy of the skin and underlying connective tissue is performed to establish fibroblast cultures. For pediatric patients, the procedure is conducted while the patient is under general anesthesia for other clinical indications. For adult patients, the biopsy is performed under local anesthesia as needed. This intervention follows cosmetic/aesthetic considerations and is therefore typically collected from the inner aspect of the upper arm.
Mouth Swab or Saliva Collection
Non-invasive collection of epithelial cells via a swab of the buccal mucosa (inner cheek) to obtain biological material for comparative genetic analysis with minimal burden.
Blood Sampling
Collection of nucleated blood cells, serum, and plasma from blood and subsequent genetic testing, functional assays, as well as antibody and cytokine measurements. To minimize risk and burden, blood sampling in pediatric patients is opportunistic (performed during routine clinical diagnostics or while under anesthesia) and capped at 1% of total blood volume per sampling and 3% over a 4-week period (adjusted by body weight). In adult patients, up to 50mL venous blood is sampled, typically performed during clinic visits or routine check-ups.
Locations (1)
Division of Immunology
Zurich, Canton of Zurich, Switzerland