The goal of this observational study is to evaluate the role of IgE proteoforms in healthy volunteers and in patients with type I allergy, patients with chronic spontaneous urticaria, patients with a recent history of anaphylaxis, patients with mastocytosis, patients with hereditary alpha tryptasemia, patients with X-linked agammaglobulinemia (XLA), and patients undergoing desensitization for venom or medication allergy.
Eligibility
Sex
ALL
Min age
18 Years
Max age
—
Healthy volunteers
Accepted
Inclusion Criteria:
* CSU and type I allergic diseases (including anaphylaxis and desensitization), atopic dermatitis, mastocytosis, XLA and HaT (informed consent, age: any available adult subject, gender: any available subject, clinical phenotype and specific information about the allergy (e.g. severity, medication, medical history, laboratory testing)
* Healthy controls (informed consent, age matched to the allergic patients, gender matched to the allergic patients, patient-reported symptoms related to allergy to aeroallergens, food, drugs, hymenoptera venom, CSU)
Exclusion Criteria:
* Absence of informed consent
* Age \< 18 years old
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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