Skip to main content

Effect of the inhaled corticosteroid mometasone on small airway patency in patients with asthma

Buy Article:

$39.50 plus tax (Refund Policy)


The inflammation in asthma involves both the large and the small airways. This study was designed to examine whether mometasone delivered from a dry powder inhaler would improve those parameters thought to reflect patency and obstruction of the small airways (diameter <2 mm). Subjects with mild to moderate asthma, only receiving short-acting beta-agonists, underwent baseline assessment, and then were randomized to receive for 12 weeks either mometasone 400 micrograms once daily in the evening or matching placebo. Outcomes assessed included clinical measures and measures of airway responsiveness and inflammation included methacholine sensitivity (concentration of methacholine causing a 20% fall in forced expiratory volume in 1 second [FEV1] [PC20]), exhaled nitric oxide, serum ECP, and sputum eosinophils. Pulmonary function was assessed by spirometry, plethysmography, and forced oscillometry. Measures of small airway patency included single breath nitrogen washout and air trapping on expiratory high-resolution computed tomography. Results were available on 12 adult subjects who received mometasone and 14 subjects who received placebo. Among tests reflecting small airway patency, the forced expiratory flow between 25 and 75% of vital capacity was significantly improved by mometasone compared with placebo (+9% versus −6%; p = 0.006 and the closing volume over forced vital capacity (FVC; −2% versus 0%; p = 0.05). Other results significantly favoring mometasone over placebo included FEV1, FVC, PC20, and A.M. and P.M. peak expiratory flows, and albuterol use. Mometasone delivered by a dry powder inhaler improved asthma control and pulmonary function in tests reflecting both large and small airways.

Keywords: Asthma; computed tomography; inflammation; inhaled corticosteroids; mometasone; nitrogen washout; plethysmography; pulmonary function tests; small airways

Document Type: Research Article


Affiliations: Department of Medicine, National Jewish Health, Denver, Colorado, USA.

Publication date: 2009-05-01

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Information for Advertisers
  • Reprint Requests
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more