Back to Search
Start Over
A pilot randomized controlled trial of pioglitazone for the treatment of poorly controlled asthma in obesity.
- Source :
- Respiratory Research; 11/26/2015, Vol. 16 Issue 1, p1-8, 8p, 1 Diagram, 5 Charts
- Publication Year :
- 2015
-
Abstract
- <bold>Background: </bold>Obese asthmatics tend to have poorly controlled asthma, and resistance to standard asthma controller medications. The purpose of this study was to determine the efficacy of pioglitazone, an anti-diabetic medication which can alter circulating adipokines and have direct effects on asthmatic inflammation, in the treatment of asthma in obesity.<bold>Methods: </bold>A two-center, 12-week, randomized, placebo-controlled, double-blinded trial. Treatments were randomly assigned with concealment of allocation. The primary outcome was difference in change in airway reactivity between participants assigned to pioglitazone versus placebo at 12 weeks.<bold>Results: </bold>Twenty-three participants were randomized to treatment, 19 completed the study. Median airway reactivity, measured by PC20 to methacholine was 1.99 (IQR 3.08) and 1.60 (5.91) mg/ml in placebo and pioglitazone group at baseline, and 2.37 (15.22) and 5.08 (7.42) mg/ml after 12 weeks, p = 0.38. There was no difference in exhaled nitric oxide, asthma control or lung function between treatment groups over the 12 week trial. Participants assigned to pioglitazone gained a significant amount more weight than those assigned to placebo (pioglitazone group mean weight 113.6, CI 94.5-132.7 kg at randomization and 115.9, CI 96.9-135.1 at 12 weeks; placebo mean weight 127.5, CI 108.4 - 146.6 kg at randomization and 124.5, CI 105.4 - 143.6 kg at 12 weeks; p = 0.04).<bold>Conclusions: </bold>This pilot study suggests limited efficacy for pioglitazone in the treatment of poorly controlled asthma in obesity, and also the potential for harm, given the weight gain in those assigned to active treatment, and the association between increased weight and worse outcomes in asthma.<bold>Trial Registration: </bold>Clinicaltrials.gov (NCT00634036). [ABSTRACT FROM AUTHOR]
- Subjects :
- PIOGLITAZONE
ASTHMA
OBESITY
RANDOMIZED controlled trials
PILOT projects
BLIND experiment
ADIPOKINES
PLACEBOS
ASTHMA diagnosis
BRONCHIAL disease diagnosis
DRUG therapy for asthma
OBESITY complications
BRONCHIAL diseases
BRONCHIAL provocation tests
BRONCHOCONSTRICTOR agents
BRONCHODILATOR agents
COMPARATIVE studies
LUNGS
RESEARCH methodology
MEDICAL cooperation
RESEARCH
RESEARCH funding
STATISTICAL sampling
TIME
WEIGHT gain
EVALUATION research
TREATMENT effectiveness
METHACHOLINE chloride
DISEASE complications
THIAZOLIDINEDIONES
DIAGNOSIS
THERAPEUTICS
Subjects
Details
- Language :
- English
- ISSN :
- 14659921
- Volume :
- 16
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Respiratory Research
- Publication Type :
- Academic Journal
- Accession number :
- 111280568
- Full Text :
- https://doi.org/10.1186/s12931-015-0303-6