allergic rhinitis hayfever
Conditions
Interventions
Routine subcutaneous allergen specific immunotherapy with BP and/or HM extracts
Sponsors
Erasmus MC, Universitair Medisch Centrum Rotterdam
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: 18 years or older Clinically relevant moderate to severe allergic rhinitis due to a sensitization for one or two allergens: birch pollen (BP), and/or house dust mite (HM). Positive nasal challenge test to the relevant allergen (BP and/or HM)
Exclusion criteria
Exclusion criteria: Severe/instable asthma Previous immunotherapy General contraindications to immunotherapy (according to international guidelines; i.e. history of anaphylaxis; immunosuppressive treatment etc).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| For inhalant allergy (BP or HM): SIT-responsiveness will be defined by nasal responsiveness to BP or HM before and after 2 years of treatment. Participants will be divided in SIT-responders and non-responders according to the outcome of nasal challenge tests. For birch pollen-associated food allergy: Responsiveness to BP-SIT as defined by oral challenge tests to Mal d 1 - the major allergen in apple * before and after 2 years of treatment. Participants will be divided in BP-SIT responders and non-responders according to the outcome of oral challenge tests. | — |
Secondary
| Measure | Time frame |
|---|---|
| For BP or HM allergy: Additional study parameters to evaluate the effects of immunotherapy are changes in i) nasal responsiveness after 1 year, ii) immediate skin reactivity after one and two years, respectively, and iii) assessment of global scores on the symptoms of allergic rhinitis after one and two years For BP allergy and apple sensitization: Additional study parameters are changes in i) responsiveness to open apple challenges, after one and two years of BP-SIT ii) responsiveness to oral challenge with Mal d 1 after 12 months iii)immediate skin reactivity to birch pollen-associated food allergens (i.e. apple, peach and hazelnut) after one and two years of BP-SIT. | — |
Countries
Netherlands
Outcome results
None listed