scholarly journals Comparisons of exacerbations and mortality among LAMA/LABA combinations in stable chronic obstructive pulmonary disease: systematic review and Bayesian network meta-analysis

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Hyun Woo Lee ◽  
Jimyung Park ◽  
Eun Jin Jang ◽  
Chang-Hoon Lee

Abstract Background Only few randomized controlled trials (RCTs) for head-to-head comparison have been conducted between various combinations of long-acting muscarinic antagonists (LAMAs) and long-acting beta-agonists (LABAs). Our study was conducted to compare acute exacerbation and all-cause mortality among different LAMA/LABA regimens using Bayesian network meta-analysis (NMA). Methods We searched Medline, EMBASE, and the Cochrane library (search date: July 1, 2019). We included parallel-group RCTs comparing LAMA/LABA combinations with other inhaled drugs in the stable COPD for ≥ 48 weeks. Two different network geometries were used. The geometry of network (A) had nodes of individual drugs or their combination, while that of network (B) combined all other treatments except LAMA/LABA into each drug class. This study was prospectively registered in PROSPERO; CRD42019126753. Results We included 16 RCTs involving a total of 39,065 patients with stable COPD. Six combinations of LAMA/LABA were identified: tiotropium/salmeterol, glycopyrrolate/indacaterol, umeclidinium/vilanterol, tiotropium/olodaterol, aclidinium/formoterol, and glycopyrrolate/formoterol. We found that umeclidinium/vilanterol was associated with a lower risk of total exacerbations than other LAMA/LABAs in the NMA using network (A) (level of evidence: low or moderate). However, the significant differences were not present in the NMA of network (B). There were no significant differences among the LAMA/LABA combinations in terms of the number of moderate to severe exacerbations, all-cause mortality, major adverse cardiovascular events, or pneumonia. Conclusions The present NMA including all available RCTs provided that there is no strong evidence suggesting different benefits among LAMA/LABAs in patients with stable COPD who have been followed up for 48 weeks or more. Trial registration: This study was prospectively registered in PROSPERO; CRD42019126753.

Respiration ◽  
2021 ◽  
pp. 1-13
Author(s):  
Hyun Woo Lee ◽  
Hyung Jun Kim ◽  
Eun Jin Jang ◽  
Chang-Hoon Lee

<b><i>Background:</i></b> Various combinations of inhaled corticosteroid (ICS), long-acting muscarinic antagonist (LAMA), and long-acting beta-agonist (LABA) have been used as triple therapy for stable chronic obstructive pulmonary disease (COPD). <b><i>Objective:</i></b> Our study was conducted to answer whether there were significant differences among various combinations in efficacy, for reducing exacerbation or mortality, and in safety, for increasing cardiovascular events or pneumonia. <b><i>Method:</i></b> We searched parallel-group randomized controlled trials (RCTs) comparing ICS/LAMA/LABA with other inhaled drugs in patients with stable COPD for at least 12 weeks in PubMed, EMBASE, the Cochrane Library, and clinical trial registries from inception to December 31, 2019. We conducted a network meta-analysis with Bayesian statistics using a random-effects model with heterogeneous variance structure (PROSPERO, CRD42019126757). <b><i>Results:</i></b> Nine different combinations of ICS/LAMA/LABA were identified in 21 RCTs containing 29,892 patients with moderate to very severe COPD. We could not find any significant evidence suggesting a better treatment for reducing total exacerbations or all-cause mortality among ICS/LAMA/LABA combinations. There were also no significant differences in moderate to severe exacerbation, COPD-related mortality, or cardiovascular disease-related mortality among ICS/LAMA/LABA combinations, and the risk of major adverse cardiovascular events was not different. A significantly lower risk of pneumonia was found in fluticasone propionate (FP)/glycopyrrolate/salmeterol (SAL) than FP/tiotropium/SAL {median odds ratio [OR] (95% credible interval [CrI]) = 0 [0–0.72]} and FP/umeclidinium/SAL {median OR (95% Crl) = 0 [0–0.97]}. <b><i>Conclusion:</i></b> There were no significant differences in clinical outcomes, including acute exacerbation and all-cause mortality among various ICS/LAMA/LABA combinations in patients with moderate to very severe COPD.


2021 ◽  
pp. jim-2021-001931
Author(s):  
Chuchu Zhang ◽  
Meng Zhang ◽  
Yalei Wang ◽  
Huaiyu Xiong ◽  
Qiangru Huang ◽  
...  

Chronic obstructive pulmonary disease (COPD) is at present the third leading cause of death in the world. Long-acting muscarinic antagonist (LAMA) is widely used as a bronchodilator in patients with COPD. However, there is controversy concerning their cardiovascular safety. This meta-analysis aims to assess the efficacy and cardiovascular safety of LAMAs versus placebo in patients with COPD. We searched Pub Med, Embase, Cochrane Library, and Web of Science to identify studies that compared LAMA with placebo in patients with COPD. Twenty-one studies involving 24,987 participants were finally included in the analysis. There was no significant difference in the incidence of all adverse events (risk ratio (RR)=1.01, 95% CI 1.00 to 1.02, I2=15.2%) and cardiovascular events (RR=0.98, 95% CI 0.88 to 1.09, I2=4.9%) in patients treated with LAMAs versus placebo. LAMAs significantly improved trough forced expiratory volume in 1 s (weighted mean difference (WMD)=0.12, 95% CI 0.10 to 0.14, I2=86.6%), Transitional Dyspnea Index (WMD=0.75, 95% CI 0.56 to 0.94, I2=0%), and St. George’s Respiratory Questionnaire (WMD=‒2.50, 95% CI ‒3.32 to ‒1.69, I2=39.8%). Moreover, LAMAs significantly reduced the incidence of exacerbation in patients with COPD (RR=0.85, 95% CI 0.79 to 0.91, I2=69.9%). LAMAs are safe therapy and play a pivotal role in improving lung function, dyspnea, and health status, and reducing the exacerbation in patients with COPD.


2021 ◽  
Author(s):  
Huanyu Long ◽  
Hongxuan Xu ◽  
Jean-Paul Janssens ◽  
Yanfei Guo

Abstract BACKGROUND: A meta-analysis was performed to compare the efficacy and safety of single-inhaler triple therapy combining long-acting beta2-agonist (LABA), long-acting muscarinic antagonist (LAMA), and inhaled corticosteroids (ICS) versus single-inhaler dual therapy (ICS/LABA and LABA/LAMA) in patients with chronic obstructive pulmonary disease (COPD).METHODS: We used the following search terms in PubMed, MEDLINE (OvidSP), EMBASE and Cochrane Library databases to investigate the effect of single-inhaler triple therapy in COPD. The primary end points were the effect of single-inhaler triple therapy on all-cause mortality, risk of acute exacerbation of COPD (AECOPD), and some safety endpoints, compared with single-inhaler dual therapy. Cochrane Collaboration's tool was used to assess quality of each randomized trial and risk of bias. RESULTS: A total of 25,171 patients suffering from COPD were recruited for the 6 studies. This meta-analysis indicated that single-inhaler triple therapy resulted in a significantly lower rate of all-cause mortality than single-inhaler dual therapy (risk ratio, 0.83; 95% CI 0.71‐0.98). Single-inhaler triple therapy reduced the risk of exacerbation (rate ratio, 0.78; 95% CI 0.73‐0.83), prolonged time to first exacerbation (hazard ratio, 0.86; 95% CI 0.84-0.89), improved trough FEV1 (mean difference, 81.35 ml; 95% CI 45.6–117.06) and St George Respiratory Questionnaire (SGRQ) Score (mean difference, -1.48; 95% CI -1.75–-1.22) vs. single-inhaler dual therapy. Risk of pneumonia was however significantly higher with ICS/LAMA/LABA than with LABA/LAMA (risk ratio, 1.25; 95% CI 1.04‐1.50). CONCLUSIONS: This meta-analysis suggests that single-inhaler triple therapy is effective in reducing the risk of moderate or severe exacerbations and death of any causes in COPD patients, compared with single-inhaler dual therapy. However, risk of pneumonia is higher with ICS/LAMA/LABA combination than with dual therapy of LABA/LAMA.TRIAL REGISTRY: ClinicalTrials.gov; No.: CRD42020186726; URL: www.clinicaltrials.gov.


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.


2020 ◽  
Vol 14 ◽  
pp. 175346662093719
Author(s):  
Ching-Yi Chen ◽  
Wang-Chun Chen ◽  
Chi-Hsien Huang ◽  
Yi-Ping Hsiang ◽  
Chau-Chyun Sheu ◽  
...  

Background: Long-acting muscarinic antagonist (LAMA) monotherapy is recommended for chronic obstructive pulmonary disease (COPD) patients with high risk of exacerbations. It is unclear whether long-acting β2-agonist (LABA)/LAMA fixed-dose combinations (FDCs) are more effective than LAMAs alone in preventing exacerbations. The aim of this study was to systematically review the literature to investigate whether LABA/LAMA FDCs are more effective than LAMA monotherapy in preventing exacerbations. Methods: We searched several databases and manufacturers’ websites to identify relevant randomized clinical trials comparing LABA/LAMA FDC treatment with LAMAs alone ⩾24 weeks. Outcomes of interest were time to first exacerbation and rates of moderate to severe, severe and all exacerbations. Results: We included 10 trials in 9 articles from 2013 to 2018 with a total of 19,369 patients for analysis in this study. Compared with LAMA monotherapy, LABA/LAMA FDCs demonstrated similar efficacy in terms of time to first exacerbation [hazard ratio, 0.96; 95% confidence interval (CI) 0.79–1.18; p = 0.71], moderate to severe exacerbations [risk ratio (RR), 0.96; 95% CI 0.90–1.03; p = 0.28], severe exacerbations (RR, 0.92; 95% CI 0.81–1.03; p = 0.15), and a marginal superiority in terms of all exacerbations (RR, 0.92; 95% CI 0.86–1.00; p = 0.04). The incidence of all exacerbation events was lower in the LABA/LAMA FDC group for the COPD patients with a history of previous exacerbations and those with a longer treatment period (52–64 weeks). Conclusion: This study provides evidence that LABA/LAMA FDCs are marginally superior in the prevention of all exacerbations compared with LAMA monotherapy in patients with COPD. The reviews of this paper are available via the supplemental material section.


2019 ◽  
Vol 16 ◽  
pp. 147997311989485 ◽  
Author(s):  
Lok Sze Katrina Li ◽  
Stacey Butler ◽  
Roger Goldstein ◽  
Dina Brooks

To systematically review randomized controlled trials that compared the effectiveness of different types of exercise on the symptom of fatigue in individuals with chronic obstructive pulmonary disease (COPD). MEDLINE, EMBASE, EMcare, PsychINFO, and Cochrane library were searched from inception to October 2018. Studies were included if individuals with COPD were randomized into two or more physical exercise interventions that reported fatigue. Of the 395 full-texts reviewed, 17 studies were included. Fifteen studies reported the impact of exercise on health-related quality of life with fatigue as a subdomain. Reduction in fatigue was observed following endurance, resistance, or a combination of both exercises. There was no significant difference between continuous and interval training ( n = 3 studies, pooled standardized mean difference (SMD) = −0.17, 95% CI = −0.47, 0.12, p = 0.25) or between endurance and resistance training ( n = 3 studies, SMD = −0.35, 95% CI = −0.72, 0.01, p = 0.07) on fatigue in people with COPD. Fatigue reduction is not usually a primary outcome of exercise interventions, but it is frequently a secondary domain. The type of exercise did not influence the impact of exercise on fatigue, which was reduced in endurance, resistance, or a combination of both exercises, enabling clinicians to personalize training to match targeted outcomes.


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