University of Wisconsin, Madison
The goal of this clinical trail is to learn about how asthma influences brain function. The main questions it aims to answer are: * How airway inflammation in asthma affects the brain; and, * Whether airway inflammation in asthma is related to symptoms of depression and anxiety Over the course of 6 visits, participants will: * Complete questionnaires * Complete computer tasks * Undergo allergy skin test * Undergo breathing tests including two whole lung allergen challenges * Give four blood samples * Complete brain imaging scans
Inclusion Criteria: * Individuals with no health concerns that might affect the outcome of the study. * Age 18-75 years of age. * Physician diagnosis of asthma for at least six months prior to screening (can be determined at the discretion of an asthma/allergy physician member of the study team). Mild asthma will be defined as asthma that is well controlled with low-intensity treatment, e.g., SABA alone, as-needed low-dose ICS-LABA, or low-dose ICS plus as-needed SABA. * An increase in FEV1 \> 10% predicted after up to 8 puffs of albuterol OR positive methacholine defined as PD20 ≤ 400 mcg. (…
Whole lung antigen challenge with cat hair, house dust mite, or short ragweed allergen extracts.
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