Related Experiment Video
Updated: Jan 28, 2026
Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
Published on: November 4, 2010
Mepolizumab improves small airway function in severe eosinophilic asthma
Claude S Farah1, Tanya Badal2, Nicola Reed3
1Department of Thoracic Medicine, Concord Hospital, Sydney, Australia; The Woolcock Institute of Medical Research, NSW, Australia; Faculty of Medicine and Health, Sydney University, Australia; Faculty of Medicine and Health Sciences, Macquarie University, NSW, Australia.
Mepolizumab treatment for severe eosinophilic asthma rapidly improves small airway function and asthma control. These early improvements in ventilation inhomogeneity are sustained and linked to better symptom management.
Area of Science:
- Pulmonology
- Immunology
- Pharmacology
Background:
- Severe eosinophilic asthma (SEA) treatment with mepolizumab reduces exacerbations.
- The impact of mepolizumab on small airway function over time is not well understood.
Purpose of the Study:
- To evaluate changes in ventilation inhomogeneity, a marker of small airway function, following mepolizumab initiation in SEA patients.
Main Methods:
- A prospective cohort study of 20 adults with SEA commencing mepolizumab.
- Measurements included Asthma Control Questionnaire (ACQ-5), spirometry, FeNO, and multiple breath nitrogen washout (LCI, Sacin, Scond) at baseline, week 4, and week 26.
Main Results:
- Significant improvements in ACQ-5, spirometry, LCI, and Sacin were observed by week 4 and sustained at week 26.
- Improved asthma control correlated with enhanced small airway function (Sacin) and FRC.
Conclusions:
- Mepolizumab rapidly improves symptom control in SEA patients.
- Early improvements in small airway function are associated with asthma control and contribute to the therapeutic response.
Related Concept Videos
01:29Asthma-I: Introduction
01:26Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
01:20Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
01:24Asthma-III: Symptoms and Complications
Classification of Asthma
01:30Asthma-IV: Diagnostic and Management
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
01:30Asthma-IV: Nursing Management
First, in...