scholarly journals Protocol for a systematic literature review and network meta-analysis of the clinical benefit of inhaled maintenance therapies in chronic obstructive pulmonary disease

BMJ Open ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. e025048 ◽  
Author(s):  
Adam Lewis ◽  
Eleanor L Axson ◽  
James Potts ◽  
Renelle Tarnowska ◽  
Helene Vioix ◽  
...  

IntroductionChronic obstructive pulmonary disease (COPD) exacerbations progress the course of disease and impair lung function. Inhaled maintenance therapy reduces exacerbations. It is not yet established which inhaled therapy combination is best to reduce exacerbations, lung function decline and symptom burden.Methods and analysisMEDLINE, EMBASE and the Cochrane Library will be searched for articles between January 2011 and May 2018 using a pre-specified search strategy. Conference proceedings will be searched. Systematic reviews (with or without meta-analysis), randomised controlled trials (RCTs), cohort studies and case controlled studies comparing six interventions comprising different combinations of long-acting bronchodilators and inhaled corticosteroids in unison or on their own. The primary outcome is the reduction in moderate-to-severe exacerbations. Secondary outcomes include: lung function, quality of life, mortality and other adverse events. Titles and abstracts will screened by the primary researcher. A second reviewer will repeat this on a proportion of records. The Population, Intervention, Comparator, Outcomes and Study framework will be used for data extraction. A network meta-analyses of outcomes from RCTs and real-world evidence will be integrated if feasible. The 95% credible interval will be used to assess the statistical significance of each summary effect. Ranking of interventions will be based on their surface under cumulative ranking area.Ethics and disseminationCOPD exacerbations are burdensome to patients. We aim to report results that provide clinicians with a more informed choice of which inhaled therapy combinations are best to reduce exacerbations, improve disease burden and reduce lung function and exercise capacity decline, compared with the potential harms, in certain populations with COPD.PROSPERO registration numberCRD42018088013.

2021 ◽  
Vol 12 ◽  
pp. 204062232110287
Author(s):  
Tao Liu ◽  
Zi-Jian Xiang ◽  
Xiao-Meng Hou ◽  
Jing-Jing Chai ◽  
Yan-Li Yang ◽  
...  

Background: Chronic obstructive pulmonary disease (COPD) is characterized by persistent respiratory symptoms and dyspnea, as well as an increase in the number of leukocytes in the airways, lungs, and pulmonary vessels. A ‘One size fits all’ approach to COPD patients with different clinical features may be considered outdated. The following are the two major objectives of this meta-analysis: the first is to determine if blood eosinophil counts (BEC) can serve as a prognostic biomarker of COPD outcomes, and the second is to determine which level of BEC is effective for inhaled corticosteroid (ICS) treatment. Methods: We searched articles published before 15 May 2021 in the following four electronic databases: Web of Science, Cochrane Library, EMBASE, and PubMed. Results: A total of 42 studies, comprising a sampling of 188,710 subjects, were summarized and compared in this meta-analysis. The rate ratio (RR) of exacerbations of COPD (ECOPD) between ICS and non-ICS treatment was statistically significant for the COPD patients with a baseline BEC ⩾ 2% or ⩾ 200 cells/μl, RR = 0.82 (0.73, 0.93) or 0.79 (0.70, 0.89) respectively, while the RR of ECOPD between ICS and non-ICS treatment was statistically insignificant for the COPD patients with baseline BEC < 2% or <200 cells/μl, RR = 0.97 (0.87, 1.08) or 0.97 (0.86, 1.08), suggested that ICS therapy was beneficial to the improvement of ECOPD in patients with a baseline BEC ⩾ 2% or BEC ⩾ 200 cells/μl. Conclusion: Our research shows that a BEC ⩾ 200 cells/μl or ⩾2% is likely to become the cutoff value of ICS treatment for ECOPD. Moreover, we believe that the baseline BEC can be used as a biomarker for predicting ECOPD. The stability of BEC requires special attention.


BMJ Open ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. e037509
Author(s):  
Kimberley Sonnex ◽  
Hanna Alleemudder ◽  
Roger Knaggs

ObjectivesInhaled corticosteroids (ICS) reduce exacerbation rates and the decline in lung function in people with chronic obstructive pulmonary disease (COPD). There is evidence that smoking causes ‘steroid resistance’ and thus reduces the effect of ICS. This systematic review aimed to investigate the effect of smoking on efficacy of ICS in COPD in terms of lung function and exacerbation rates.DesignSystematic review.Data sourcesAn electronic database search of PubMed, Ovid MEDLINE, Ovid Embase and Cochrane Library (January 2000 to January 2020).Eligibility criteriaFully published randomised controlled trials (RCTs), in the English language, evaluating the use of ICS in COPD adults that stratified the participants by smoking status. Trials that included participants with asthma, lung cancer and pneumonia were excluded. The primary outcome measures were changes in lung function and yearly exacerbation rates.Data extraction and synthesisTwo independent reviewers extracted data and assessed risk of bias using the Cochrane Collaboration’s tool.ResultsSeven studies were identified. Four trials (17 892 participants) recorded change in forced expiratory volume in one second (FEV1) from baseline to up to 30 months after starting treatment. Heavier smokers (>36 pack years) using ICS had a greater decline in FEV1that ranged from −22 mL to −75 mL in comparison to lighter smokers. Smokers using ICS had mixed results in FEV1change: −8 mL to +77 mL in comparison to ex-smokers. Four trials (21 270 participants) recorded difference in COPD exacerbation rates at 52 weeks. The rate ratios favoured more exacerbations in ICS users who were current or heavier smokers than those who were ex-smokers or lighter smokers (0.81 to 0.99 vs 0.92 to 1.29).ConclusionsIn COPD, heavier or current smokers do not gain the same benefit from ICS use on lung function and exacerbation rates as lighter or ex-smokers do, however effects may not be clinically important.PROSPERO registration numberCRD42019121833


2020 ◽  
Vol 41 (46) ◽  
pp. 4415-4422 ◽  
Author(s):  
Yan-Li Yang ◽  
Zi-Jian Xiang ◽  
Jing-Hua Yang ◽  
Wen-Jie Wang ◽  
Zhi-Chun Xu ◽  
...  

Abstract Aims The aim of this study was to clarify the effect of β-blockers (BBs) on respiratory function and survival in patients with chronic obstructive pulmonary disease with cardiovascular disease (CVD), as well as the difference between the effects of cardioselective and noncardioselective BBs. Methods and results We searched for relevant literature in four electronic databases, namely, PubMed, EMBASE, Cochrane Library, and Web of Science, and compared the differences in various survival indicators between patients with chronic obstructive pulmonary disease taking BBs and those not taking BBs. Forty-nine studies were included, with a total sample size of 670 594. Among these, 12 studies were randomized controlled trials (RCTs; seven crossover and five parallel RCTs) and 37 studies were observational (including four post hoc analyses of data from RCTs). The hazard ratios (HRs) of chronic obstructive pulmonary disease exacerbation between patients with chronic obstructive pulmonary disease who were not treated with BBs and those who were treated with BBs, cardioselective BBs, and noncardioselective BBs were 0.77 [95% confidence interval (CI) 0.67, 0.89], 0.72 [95% CI 0.56, 0.94], and 0.98 [95% CI 0.71, 1.34, respectively] (HRs &lt;1 indicate favouring BB therapy). The HRs of all-cause mortality between patients with chronic obstructive pulmonary disease who were not treated with BBs and those who were treated with BBs, cardioselective BBs, and noncardioselective BBs were 0.70 [95% CI 0.59, 0.83], 0.60 [95% CI 0.48, 0.76], and 0.74 [95% CI 0.60, 0.90], respectively (HRs &lt;1 indicate favouring BB therapy). Patients with Chronic obstructive pulmonary disease treated with cardioselective BBs showed no difference in ventilation effect after the use of an agonist, in comparison with placebo. The difference in mean change in forced expiratory volume in 1 s was 0.06 [95% CI −0.02, 0.14]. Conclusion The use of BBs in patients with chronic obstructive pulmonary disease is not only safe but also reduces their all-cause and in-hospital mortality. Cardioselective BBs may even reduce chronic obstructive pulmonary disease exacerbations. In addition, cardioselective BBs do not affect the action of bronchodilators. Importantly, BBs reduce the heart rate acceleration caused by bronchodilators. BBs should be prescribed freely when indicated in patients with chronic obstructive pulmonary disease and heart disease.


2021 ◽  
Author(s):  
Yilan Wang ◽  
◽  
Sijing Zhao ◽  
Zherui Shen ◽  
Zhenxing Wang ◽  
...  

Review question / Objective: Jinshuibao capsules are derived from Cordyceps, and they have been widely used in the treatment of different diseases. They have also been utilized in the treatment of respiratory diseases, while their effects on patients with stable chronic obstructive pulmonary disease (COPD) have remained elusive. The present study aimed to compare the efficacy of Jinshuibao capsules plus conventional pharmaceutical treatments (CPT) versus CPT alone for patients with stable COPD. Information sources: It was attempted to conduct a systematic review and a meta-analysis based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. In addition, PubMed, EMBASE, Cochrane Library, Web of Science, China Knowledge Infrastructure (CNKI), Wanfang Data Knowledge Service Platform, VIP Information Resource Integration Service Platform (CQVIP), and China Biomedicine (SinoMed) databases were searched from inception until September 30, 2021. Google Scholar and the China Clinical Trial Registry were also searched for retrieving missing data. In emergency conditions, we contacted the corresponding authors of retrieved studies for collection of additional data.


2020 ◽  
Vol 40 (3) ◽  
Author(s):  
Yi-Hua Lin ◽  
Tian-Xiang Jiang ◽  
Su-Xian Hu ◽  
Yong-Hong Shi

Abstract Background: Adiponectin has been implicated to play a role in the pathophysiology of chronic obstructive pulmonary disease (COPD). Many studies have assessed serum adiponectin concentrations in COPD patients. However, results from different reports were not consistent. To assess the association of serum adiponectin concentrations and COPD, a meta-analysis was performed. Methods: PubMed, Embase, Web of Science and Cochrane Library were searched for eligible studies. Data were extracted, and then standard mean differences (SMDs) and 95% confidence intervals (CI) were calculated. Results: Thirteen studies involving a total of 1131 cases and 689 controls were included in this meta-analysis. Combined data indicated that the serum adiponectin levels were higher in COPD patients than those in controls (SMD: 1.09, 95% CI [0.73–1.45], P &lt; 0.001). In the subgroup analyses by disease period, there were similar results in stable COPD patients (SMD: 0.77, 95% CI [0.47–1.07], p &lt;0.001; I2 = 83.9%, P &lt; 0.001), AECOPD patients (SMD: 2.51, 95% CI [0.71–4.30], P = 0.006; I2 = 95.2%, P &lt; 0.001) and mixed COPD patients (SMD: 1.21, 95% CI [0.67–1.75], P &lt; 0.001). Furthermore, the serum adiponectin levels were higher in AECOPD patients than those in stable COPD patients (SMD: 1.06, 95% CI [0.13–1.99], P = 0.026). Conclusions: This meta-analysis indicates that patients with COPD have higher serum adiponectin concentration than healthy controls.


2020 ◽  
Vol 9 (12) ◽  
pp. 839-848
Author(s):  
Hui Ma ◽  
Ting Liu ◽  
Yongxiang Zhang ◽  
Zhen Ye ◽  
Wei Jia ◽  
...  

Background: The aim of the present study was to systematically review the exiting literature and to proceed a meta-analysis to determine the impact of chronic obstructive pulmonary disease (COPD) on mortality in patients with community acquired pneumonia. Materials & methods: Eligible studies were searched from PubMed, Cochrane Library and EMBASE. Odds ratios (ORs) with 95% CIs were used as effect estimates. Results: Twenty cohort studies were included. Analysis of unadjusted data revealed nonsignificant short- and long-term mortality associated with COPD. Analysis of adjusted 30-days mortality showed similarly no association between COPD and increased 30-days mortality (OR: 1.06, [0.68, 1.44]) but a positive association when COPD was confirmed spirometrically (OR: 1.84, [1.06, 2.62]). Conclusion: There is still no evidence to clear the impact of COPD on mortality in patients with community acquired pneumonia. More prospective studies with spirometrically-defined COPD and adequate adjustment for confounders are needed.


Healthcare ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1127
Author(s):  
Chan-Young Kwon ◽  
Boram Lee ◽  
Beom-Joon Lee ◽  
Kwan-Il Kim ◽  
Hee-Jae Jung

Background: Manual therapy (MT) is considered a promising adjuvant therapy for chronic obstructive pulmonary disease (COPD). Comparing the effectiveness among different Western and Eastern MTs being used for the management of COPD could potentially facilitate individualized management of COPD. This systematic review attempted to estimate the comparative effectiveness of Western and Eastern MTs for COPD patients using a network meta-analysis (NMA) methodology. Methods: Nine electronic databases were comprehensively searched for relevant randomized controlled trials (RCTs) published up to February 2021. Pair-wise meta-analysis and NMA were conducted on the outcomes of COPD, which included lung function and exercise capacity. Results: The NMA results from 30 included RCTs indicated that the optimal treatment for each outcome according to the surface under the cumulative ranking curve was massage, acupressure, massage, and tuina for forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), FEV1/FVC, and 6 min walking distance, respectively. Conclusions: MTs such as massage, acupressure, and tuina have shown comparative benefits for lung function and exercise capacity in COPD. However, the methodological quality of the included studies was poor, and the head-to-head trial comparing the effects of different types of MTs for COPD patients was insufficient. Therefore, further high-quality RCTs are essential.


2021 ◽  
Vol 7 (6) ◽  
pp. 5103-5107
Author(s):  
Liu Xin

To explore the intervention effect of Dejian psychosomatic therapy on chronic obstructive pulmonary disease (COPD) in elderly smokers, in as to improve clinical impact of COPD in smokers who are the aged. Forty elderly smokers with COPD were comprise of treatment group, control group, which are trained for 45 days to test the following indicators. Vital mass Index (VMI), forced Vital capacity (FVC), Maximum Chase air volume (MVV) and so on showed significant improvement in lung function indicators in both the treatment group and the control group (P < 0.05). Improvement impact of control group was not better than that of the treatment group, with statistical significance (P < 0.01). Dejian psychosomatic therapy has a systematic good effect on copd smokers, promoting the improvement and promotion of lung function, and strengthening the physical function of copd smokers in stable stage.


2019 ◽  
Vol 9 (2) ◽  
pp. 250-259 ◽  
Author(s):  
Ying Wang ◽  
Xiaotong Li ◽  
Biying Wei ◽  
Tao-Hsin Tung ◽  
Ping Tao ◽  
...  

Background: Chronic obstructive pulmonary disease (COPD) is a common disease among the elderly, which has been linked to cognitive decline. However, the relationship between COPD and dementia remains unclear. Summary: We conducted a systematic literature review by searching databases such as Pubmed, Embase, EBSCO, and Cochrane Library (from inception to April 18, 2018) for studies on COPD that also investigated the prevalence of dementia. We found 3 cohort studies including a total of 39,392 COPD patients. Then we applied the Newcastle-Ottawa Scale to evaluate the risk of bias. Key Messages: COPD patients faced a higher risk of dementia (HR 1.46; 95% CI 1.22–1.75; p < 0.001). Subgroup analysis on gender determined that the association between COPD and dementia was stronger in male patients (HR 1.49, 95% CI 1.20–1.86, p < 0.001) than in female patients (HR 1.41, 95% CI 1.27–1.57, p < 0.001). A subset study of patients aged >65 years revealed that the HR was greater for patients aged ≥75 years (HR 1.46, 95% CI 1.07–2.00, p = 0.02) than for those aged 65–74 years (HR 1.40, 95% CI 1.28–1.53, p < 0.001). The cohort studies included were from similar population-based databases, suggesting possible regional limitations and publication bias.


Sign in / Sign up

Export Citation Format

Share Document