Alyatec

Skin prick test (SPT) is a first line diagnostic test to detect type I hypersensitivity in patients suspected of an inhalant allergy. A novel S.P.A.T. or Skin Prick Automated Test device has been developed to enable more standardised allergy testing. In two independent studies, Gorris and colleagues previously showed that test results after S.P.A.T. are less variable and more consistent compared to conventional skin prick testing (Gorris et al. Allergy. 2023; Seys et al. Rhinology 2024). In these studies conducted in volunteers, a cutoff value of 4.5 mm has been proposed based on the 97.5 percentile level of glycerol control wheals.
The current study aims to determine a cutoff value corresponding to the highest accuracy to discriminate between sensitized-allergic and non sensitized, non allergic subjects for both house dust mite and birch allergens.

The goal of this clinical trial is to evaluate the efficacy of air purifiers in reducing allergy symptoms in patients with a cat allergy. The main question it aims to answer is:
If there is a reduction of early asthmatic response (EAR) compared to placebo.
Participants were asked to remain in an exposure chamber for 2 hours while their symptoms were monitored.

The aim of this study is to determine the optimal concentration of grass pollen allergens inducing rhinoconjunctivitis in subjects allergic to grass pollen in ALYATEC allergen exposure chamber.
Four concentrations of grass pollen allergen (Phl p 5) are tested during 3-hour exposures: 0, 30, 60 and 90 ng/m3.