Sputum eosinophil counts predict asthma control after discontinuation of inhaled corticosteroids

2005 ◽  
Vol 115 (4) ◽  
pp. 720-727 ◽  
Author(s):  
Aaron Deykin ◽  
Stephen C. Lazarus ◽  
John V. Fahy ◽  
Michael E. Wechsler ◽  
Homer A. Boushey ◽  
...  
Keyword(s):  
Asthma Control ◽  
Inhaled Corticosteroids ◽  
Sputum Eosinophil ◽  
Eosinophil Counts

scholarly journals Predictors of Loss of Asthma Control Induced by Corticosteroid Withdrawal

2006 ◽  
Vol 13 (3) ◽  
pp. 129-133 ◽  
Author(s):  
Jose Belda ◽  
Krishnan Parameswaran ◽  
Catherine Lemière ◽  
Dennis Kamada ◽  
Paul M O'Byrne ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Asthma Control ◽  
Eosinophil Count ◽  
Inhaled Corticosteroids ◽  
Forced Expiratory Volume ◽  
Exhaled Nitric Oxide ◽  
Baseline Risk ◽  
Blood Eosinophil ◽  
Inhaled Corticosteroid ◽  
Sputum Eosinophil

BACKGROUND: Asthma guidelines recommend reducing the dose of inhaled corticosteroids after establishing control.OBJECTIVE: To identify predictors of loss of control and the kinetics of symptoms, and inflammatory and physiological measurements when inhaled corticosteroids are reduced in patients with stable asthma.PATIENTS AND METHODS: In a single-blind study, the daily dose of inhaled corticosteroid was reduced by one-half at intervals of 20±2 days in 17 adults with controlled asthma until loss of asthma control occurred or until the corticosteroid was replaced with placebo for 20 days. The patients recorded symptoms and peak expiratory flow each day, and forced expiratory volume in 1 s (FEV1), the provocative concentration of methacholine causing a 20% fall in FEV1(PC20), exhaled nitric oxide, and eosinophils in sputum and blood were measured every 10 days. A loss of asthma control was defined as a worsening of the symptoms score of at least 20%, and either a decrease in FEV1of at least 15% or a decrease in PC20of at least fourfold.RESULTS: Two patients had a respiratory infection and were withdrawn from the study. In eight patients, asthma became uncontrolled after a mean of 33 days (range 13 to 48 days). This was accurately reflected by a worsening of all parameters. The first parameter to change was the sputum eosinophil percentage (20 days before the loss of asthma control). Significant changes in exhaled nitric oxide, FEV1and methacholine PC20were observed only when the symptoms became uncontrolled. A high blood eosinophil count at baseline (risk ratio of 2.5, 95% CI 1.0 to 6.5) and an increase in sputum eosinophil count after the reduction of corticosteroids were predictors of loss of asthma control.CONCLUSION: In patients whose asthma is controlled on inhaled corticosteroid, it is prudent not to reduce the dose further if the blood eosinophils are increased or if the sputum eosinophils increase by as little as 1% after the reduction of corticosteroids.

scholarly journals Efficacy of inhaled corticosteroids for patients with asthma: a descriptive review of randomized controlled trials

2015 ◽  
Vol 5 (1) ◽  
pp. 41-50
Author(s):  
Mostafa Alabousi ◽  
Abdullah Alabousi ◽  
Natalie Ambeault ◽  
John Riva
Keyword(s):  
Fluticasone Propionate ◽  
Full Text ◽  
Beclomethasone Dipropionate ◽  
Search Strategy ◽  
Inhaled Corticosteroids ◽  
Controlled Trials ◽  
Sputum Eosinophil ◽  
Randomized Controlled ◽  
Eosinophil Counts ◽  
Full Text Screening

Objective: To evaluate the efficacy of inhaled corticosteroids (ICS) in patients with asthma based on changes in sputum eosinophil counts, through a review of relevant randomized controlled trials (RCTs).Methods: Studies were retrieved from MEDLINE, EMBASE, the SYSTEM FOR INFORMATION ON GREY LITERATURE, and the INSTITUTE FOR SCIENTIFIC INFORMATION from February 1, 2003 to February 1, 2013 based on a comprehensive search strategy. Articles were screened through two stages: title and abstract; and full-text screening. RCTs enrolling patients with asthma, testing an ICS intervention, and reporting outcomes on changes in sputum eosinophil counts pre- and post-intervention were included. Following screening, data extraction, and quality appraisal, a descriptive synthesis of trials was conducted.Results: The search strategy retrieved 447 articles, of which 66 articles underwent full-text screening, resulting in 37 RCTs that met the inclusion criteria for this review. The articles were stratified according to the type of ICS: budesonide, fluticasone propionate, ciclesonide, beclomethasone dipropionate, and mometasone.  Across trials, 9 of 16 budesonide, 5 of 14 fluticasone propionate, 4 of 9 of nine ciclesonide, 2 of 4 beclomethasone dipropionate, and 1 of 2 mometasone interventions demonstrated a statistically significant (p < 0.05) reduction in sputum eosinophil counts.Conclusion: This study detected differences between ICS treatments however the clinical relevance is uncertain. There is insufficient evidence to suggest the superiority of one ICS treatment over another. Further research needs to be conducted to evaluate the relative impact of ICS products upon eosinophil counts, as well as in clarifying what quantitative level of change in baseline eosinophil counts is required to observe a change in symptom improvement and disease control.

Tiotropium as add-on to inhaled corticosteroids significantly improves asthma control as reflected by the ACQ responder rate

Pneumologie ◽  
2014 ◽  
Vol 68 (S 01) ◽  
Author(s):  
O Schmidt ◽  
HAM Kerstjens ◽  
E Bleecker ◽  
E Meltzer ◽  
T Casale ◽  
...  
Keyword(s):  
Asthma Control ◽  
Inhaled Corticosteroids ◽  
Responder Rate

scholarly journals Higher Omega-3 Index Is Associated with Better Asthma Control and Lower Medication Dose: A Cross-Sectional Study

Nutrients ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 74 ◽  
Author(s):  
Isobel Stoodley ◽  
Manohar Garg ◽  
Hayley Scott ◽  
Lesley Macdonald-Wicks ◽  
Bronwyn Berthon ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Asthma Control ◽  
Inhaled Corticosteroids ◽  
Asthma Management ◽  
Airway Disease ◽  
Cross Sectional Study ◽  
Erythrocyte Membranes ◽  
Omega 3 ◽  
Asthma Control Questionnaire ◽  
Cross Sectional

Asthma is a chronic inflammatory airway disease, associated with systemic inflammation. Omega-3 polyunsaturated fatty acids (n-3 PUFA) have established anti-inflammatory effects, thus having potential as an adjunct therapy in asthma. This study aimed to compare erythrocyte n-3 PUFA in adults with (n = 255) and without (n = 137) asthma and determine the relationship between erythrocyte n-3 PUFA and clinical asthma outcomes. Subjects had blood collected, lung function measured and Juniper Asthma Control Questionnaire (ACQ) score calculated. Fatty acids were measured in erythrocyte membranes by gas chromatography, and the omega-3 index (O3I) was calculated (% eicosapentaenoic acid + % docosahexaenoic acid). O3I was similar in subjects with and without asthma (p = 0.089). A higher O3I was observed in subjects with controlled or partially controlled asthma (ACQ < 1.5) compared to subjects with uncontrolled asthma (ACQ ≥ 1.5) (6.0% (5.4–7.2) versus 5.6% (4.6–6.4) p = 0.033). Subjects with a high O3I (≥8%) had a lower maintenance dose of inhaled corticosteroids (ICS) compared to those with a low O3I (<8%) (1000 μg (400–1000) versus 1000 μg (500–2000) p = 0.019). This study demonstrates that a higher O3I is associated with better asthma control and with lower ICS dose, suggesting that a higher erythrocyte n-3 PUFA level may have a role in asthma management.

scholarly journals Influence of Adherence to Inhaled Corticosteroids and Inhaler Handling Errors on Asthma Control in a Japanese Population

2018 ◽  
Vol 57 (23) ◽  
pp. 3357-3363 ◽  
Author(s):  
Toshiyuki Koya ◽  
Takashi Hasegawa ◽  
Junko Takasawa ◽  
Fumitoshi Yoshimine ◽  
Takuro Sakagami ◽  
...  
Keyword(s):  
Asthma Control ◽  
Japanese Population ◽  
Inhaled Corticosteroids

scholarly journals Health-Related Effects of Home Nebulization With Glycopyrronium on Difficult-to-Treat Asthma: Post-Hoc Analyses of an Observational Study (Preprint)

2020 ◽  
Author(s):  
Deepak Talwar ◽  
Salil Bendre
Keyword(s):  
Adverse Events ◽  
Asthma Control ◽  
Inhaled Corticosteroids ◽  
Moderate Intensity ◽  
Serious Adverse Events ◽  
Female Ratio ◽  
Mean Values ◽  
Control Score ◽  
Long Acting ◽  
Post Hoc

BACKGROUND Bronchial asthma remains a clinical enigma with poorly controlled symptoms or exacerbations despite regular use of inhaled corticosteroids. Home nebulization offers a simplified solution for the delivery of rescue and maintenance bronchodilators, which is especially true for patients with frequent exacerbations during management of uncontrolled or difficult-to-treat asthma. OBJECTIVE We aimed to assess the clinical impact and outcomes associated with home nebulization—delivered long-acting bronchodilators for uncontrolled or difficult-to-treat asthma. METHODS This observational, concurrent study was conducted with 60 patients at 2 centers during November 2018. Statistical analyses for prebronchodilator forced expiratory volume in one second (FEV1) and Global Initiative for Asthma (GINA) asthma control score in patients on long-acting bronchodilators and corticosteroids were conducted, with two-tailed <i>P</i> values &lt;.05 considered statistically significant. RESULTS Per protocol analyses (53/60) for consecutive cases receiving home nebulization with long-acting bronchodilators and corticosteroids were conducted. The baseline demographics included a male-to-female ratio of 30:23 and mean values of the following: age, 60.3 years (SD 11.8 years); weight, 64 kg (SD 16.8 kg); FEV1, 43% (SD 16%); GINA asthma control score, 3.0 points (SD 0.8 points); serum eosinophil level, 4% (SD 3%); fractional exhaled nitric oxide (FeNO), 12.1 ppb (SD 6 ppb). Of the patients, 100% (53/53) had uncontrolled symptoms, 69.8% (37/53) had prior exacerbations, 100% (53/53) used formoterol/budesonide, and 75.5% (40/53) used glycopyrronium. The per protocol group (n=53) had significantly improved mean prebronchodilator FEV1 (23.7%, SD 29.8%; 0.46 L, SD 0.58 L; <i>P</i>&lt;.001) and GINA asthma control score (2.1 points, SD 0.8 points, <i>P</i>&lt;.001). At baseline, patients (n=40) receiving glycopyrronium/formoterol/budesonide (25/20/500 mcg) nebulization admixture had the following mean values: prebronchodilator FEV1, 38% (SD 15%); GINA asthma control score, 3.0 points (SD 0.8 points); reversibility, 12% (SD 6%); peripheral eosinophil level, 4% (SD 3%); FeNO, 12 ppb (SD 5.7 ppb). In the post hoc analyses, these patients had significantly improved mean prebronchodilator FEV1 of 27.7% (SD 26.2%; 0.54 L, SD 0.51 L; <i>P</i>&lt;.001) at 8 weeks compared with baseline. At baseline, patients (n=13) receiving formoterol/budesonide (20/500 mcg) nebulization had the following mean values: FEV1, 55% (SD 12%); GINA asthma control score, 3.0 points (SD 1.2 points); reversibility, 14% (SD 7%); serum eosinophil level, 4% (SD 3%); FeNO, 13.3 ppb (SD 6.8 ppb). In the post hoc analyses, these patients showed a significant improvement in prebronchodilator FEV1 of 11.2% (SD 13.1%; 0.22 L, SD 0.25 L; <i>P</i>&lt;.001) from baseline. Breathlessness of mild to moderate intensity was reported by 10 cases (10/53, 18.9%), with no other treatment-emergent adverse events or serious adverse events. CONCLUSIONS Home nebulization remains a viable option for symptomatic difficult-to-treat asthma cases with frequent use of rescue medications. Glycopyrronium as add-on therapy offers a synergistic response in patients on corticosteroids with difficult-to-treat asthma. CLINICALTRIAL Clinical Trial Registry of India CTRI/2018/11/016319; https://tinyurl.com/y78cctm3

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