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RECRUITING
NCT04259359

Predominant Sensitizations to Single Bee Venom Allergens as a Risk Factor for Therapy Failure

Sponsor: Medical University of Graz

View on ClinicalTrials.gov

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

Interventions

DRUG

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