Clinical trial Recruiting at 3 sites Observational Ages 18 to 70

Understanding why some patients don't respond to bee venom allergy treatment

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

Run by Medical University of Graz · NCT04259359 · Data updated 2026-11-12

This study looks at why some people with bee venom allergies don't get better with treatment and tries to find out if certain allergens make the treatment less effective.

Quick facts

Study typeObservational
Ages18 Years to 70 Years
SexAll
Enrollment266 (estimated)
SponsorMedical University of Graz
Academic / other
Drugs / interventionsimmunotherapy
Locations3 sites (Graz and 2 other locations)
StatusRecruiting
StartedMay 2, 2019
Main results expectedDecember 2028
Study endsMarch 2029
Registry record updatedOctober 8, 2026
Trial IDNCT04259359 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 to 70 who have a history of severe allergic reactions to bee stings and are starting bee venom immunotherapy.

Probably not a fit

Patients who have contraindications to venom immunotherapy will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study investigates the effectiveness of venom immunotherapy (VIT) for patients with bee venom allergy, focusing on the role of predominant sensitizations to specific bee venom allergens as potential risk factors for treatment failure. The study aims to analyze patients who have experienced systemic anaphylactic reactions to bee stings and are undergoing VIT. By identifying the relationship between allergen sensitization and treatment outcomes, the research seeks to optimize bee venom preparations for better efficacy in future therapies.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients with bee venom allergies, enhancing the effectiveness of immunotherapy.

How similar studies have gone: While there is existing research on venom immunotherapy, this specific focus on predominant sensitizations as a risk factor for treatment failure is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Legally competent male and female subjects aged from 18 to 70 years with a history of a systemic anaphylactic sting reaction (≥ grade I according to the classification of Ring and Messmer) after bee stings, who will receive bee venom immunotherapy

Exclusion Criteria:

* Contraindications to VIT

Where it's running

  • Department of Dermatology and Venerology, Medical University of Graz
    Graz, Austria
    Recruiting
  • Elbe Klinikum Buxtehude
    Buxtehude, Germany
    Recruiting
  • Hospital Universitario de Castellón
    Castellon, Spain
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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  • Evaluating a new method to identify vespid venom allergy risks

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.