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Comparative effect of body mass index on response to asthma controller therapy

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Increases in body mass index (BMI) are reported to influence asthma severity and response to treatment. This analysis was designed to explore whether increasing BMI altered the comparative response to treatment with either fluticasone propionate (FP) or montelukast. Two double-blind, randomized, parallel-group trials of 12-weeks duration comparing FP, 88 micrograms, twice daily or montelukast, 10 mg, daily were evaluated. Subjects with mild‐moderate persistent asthma were retrospectively stratified by BMI of <20 kg/m2 (underweight), 20‐24.9 kg/m2 (normal weight), 25‐29.9 kg/m2 (overweight), and ≥30 kg/m2 (obese). Outcomes included mean changes in forced expiratory volume in 1 second (FEV1) and morning peak flow, daily albuterol use, and daily symptom scores. There were 1052 subjects evenly distributed between FP and montelukast by baseline parameters, including BMI. FP was statistically superior to montelukast for all BMI categories of normal, overweight, and obese subjects for FEV1 (p < 0.008), morning peak flow (p < 0.002), albuterol use (p < 0.02), and symptom scores (p < 0.05). FP produced a significantly greater clinical response for normal, overweight, and obese subjects compared with montelukast. Irrespective of BMI, FP appears to be the more effective asthma controller therapy.
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Keywords: Asthma; body mass index; clinical trial; controller therapy; fluticasone propionate; inhaled corticosteroids; montelukast; obese; overweight

Document Type: Research Article

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

Publication date: 2010-01-01

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.
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