Allergy
Conditions
Interventions
Double blind, placebo controlled provocation with aspirin.
acetylsalicylic acid
anaphylaxis
Mastocytosis
NSAID
Sponsors
Erasmus MC, Universitair Medisch Centrum Rotterdam
Eligibility
Age
18 Years to 64 Years
Inclusion criteria
Inclusion criteria: Systemic mastocytosis, according to WHO criteria.
Exclusion criteria
Exclusion criteria: Severe of uncontrolled asthma (FEV1<70%), nasal polyps, chronic rhinosinusitis, previous anaphylaxis due to NSAID's, patients who are not able to provide follow-up information, patients who are not deemed capable of handling possible delayed anaphylaxis at home.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The frequency and severity of allergic reactions to aspirin. | — |
Secondary
| Measure | Time frame |
|---|---|
| - the influence of aspirin on mast cell mediators; e.g. measurement of serum tryptase and 11bèta-PGF2 levels and of urine leukotriene E4 and N-methylhistamine levels - daily SM-related symptoms and quality of life (questionnaires) | — |
Countries
The Netherlands
Outcome results
None listed