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Predominant Sensitizations to Single Bee Venom Allergens as a Risk Factor for Therapy Failure
Sponsor: Medical University of Graz
Summary
Venom immunotherapy (VIT) is an established treatment for Hymenoptera venom allergy and provides long-term protection from further generalized reactions in almost all patients. However, it is still unclear why bee VIT is less effective than vespid VIT. The preliminary data show that not only predominant Api m 10 sensitization but also other predominant sensitizations may be relevant as risk factors for treatment failure. Interestingly, all patients with a predominant Api m 10 sensitization who received bee VIT with a venom preparation with a supposed lack of Api m 10 tolerated sting challenges. Therefore, a multicenter study with a sufficient number of patients with treatment failure is urgently required, to clarify if predominant sensitization to a bee venom allergen is a risk factor for treatment failure. If predominant sensitization is a risk factor and caused by underrepresented components in bee venom preparations used for VIT, bee venom preparations may be optimized in the future and patients would benefit from a more effective VIT.
Key Details
Gender
All
Age Range
18 Years - 70 Years
Study Type
OBSERVATIONAL
Enrollment
266
Start Date
2019-05-02
Completion Date
2026-03
Last Updated
2025-12-08
Healthy Volunteers
No
Conditions
Interventions
Insect Venom
Patients will be treated with bee venom immunotherapy (protocol can be selected by patient). Blood samples are taken before starting VIT to determine specific immunoglobulin E (sIgE) Levels for bee venom components. Patients are sting challenged and the outcome will be recorded.
Locations (3)
Department of Dermatology and Venerology, Medical University of Graz
Graz, Austria
Elbe Klinikum Buxtehude
Buxtehude, Germany
Hospital Universitario de Castellón
Castellon, Spain