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Livnat G, Yaari N, Stein N, Bentur L, Hanna M, Harel M, Adir Y, Shteinberg M. 4-week daily airway clearance using oscillating positive-end expiratory pressure versus autogenic drainage in bronchiectasis patients: a randomised controlled trial. ERJ Open Res 2021; 7:00426-2021. [PMID: 34760994 PMCID: PMC8573225 DOI: 10.1183/23120541.00426-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 08/25/2021] [Indexed: 12/03/2022] Open
Abstract
Background Airway clearance is a fundamental component of bronchiectasis care. Lung clearance index (LCI) is a measurement of ventilation inhomogeneity. Its responsiveness to long-term airway clearance is unknown. We aimed to compare two methods of daily airway clearance over 4 weeks: autogenic drainage (AD) and oscillating positive airway pressure (oPEP), and to determine effects of airway clearance on LCI and clinical outcomes. Methods Adults with bronchiectasis naive to airway clearance were randomised to daily airway clearance with either AD or oPEP. Difference in LCI as primary outcome, spirometry, sputum volume and purulence, and quality of life were at randomisation and after 4 weeks of airway clearance. Results 51 patients (32 women and 19 men, mean age 66.2±12.8 years) were randomised and 49 completed the study (25 AD and 24 oPEP). The LCI and forced expiratory volume in 1 s did not change between visits between groups (difference between groups 0.02), nor between visits in either group. Sputum quantity decreased in 12 out of 24 (50%) of the oPEP group, and in six out of 25 (24%) of the AD group (p=0.044). The “treatment burden” worsened or was unchanged in 70% of participants randomised to AD and 55% randomised to oPEP (p=0.038). Conclusion Sputum quantity decreased in more participants randomised to oPEP group after 1 month of daily airway clearance, with a better treatment burden. The effects of 4 weeks of airway clearance on LCI were not significant in either treatment group. People with bronchiectasis were randomised to 4 weeks of two methods of daily airway clearance, autogenic drainage (AD) and oscillating PEP (oPEP). Sputum volume decreased in more people randomised to oPEP than AD. LCI did not change in either group.https://bit.ly/3gNj2bi
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Affiliation(s)
- Galit Livnat
- Pediatric Pulmonology, Carmel Medical Center, Haifa, Israel.,Cystic Fibrosis Center, Carmel Medical Center, Haifa, Israel.,Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Naama Yaari
- Dept of Physical Therapy, Carmel Medical Center, Haifa, Israel
| | - Nili Stein
- Dept of Community Medicine and Epidemiology, Carmel Medical Center, Haifa, Israel
| | - Lea Bentur
- Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.,Pediatric Pulmonology and CF Center, The Ruth Rappaport Children's Hospital, Rambam Medical Center, Haifa, Israel
| | - Moneera Hanna
- Pediatric Pulmonology and CF Center, The Ruth Rappaport Children's Hospital, Rambam Medical Center, Haifa, Israel
| | - Maya Harel
- Pulmonology Institute, Carmel Medical Center, Haifa, Israel
| | - Yochai Adir
- Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.,Pulmonology Institute, Carmel Medical Center, Haifa, Israel
| | - Michal Shteinberg
- Cystic Fibrosis Center, Carmel Medical Center, Haifa, Israel.,Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.,Pulmonology Institute, Carmel Medical Center, Haifa, Israel
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Franks LJ, Walsh JR, Hall K, Morris NR. Measuring airway clearance outcomes in bronchiectasis: a review. Eur Respir Rev 2020; 29:190161. [PMID: 32350088 PMCID: PMC9489113 DOI: 10.1183/16000617.0161-2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 12/27/2019] [Indexed: 12/21/2022] Open
Abstract
While airway clearance techniques (ACTs) are recommended for individuals with bronchiectasis, many trials have demonstrated inconsistent benefits or failed to reach their primary outcome. This review determined the most common clinical and patient-reported outcome measures used to evaluate the efficacy of ACTs in bronchiectasis. A literature search of five databases using relevant keywords and filtering for studies published in English, up until the end of August 2019, was completed. Studies included randomised controlled trials, using crossover or any other trial design, and abstracts. Studies were included where the control was placebo, no intervention, standard care, usual care or an active comparator. Adults with bronchiectasis not related to cystic fibrosis were included. Extracted data comprised study authors, design, duration, intervention, outcome measures and results. The search identified 27 published studies and one abstract. The most common clinical outcome measures were sputum volume (n=23), lung function (n=17) and pulse oximetry (n=9). The most common patient-reported outcomes were health-related quality of life (measured with St George's Respiratory Questionnaire, n=4), cough-related quality of life (measured with Leicester Cough Questionnaire, n=4) and dyspnoea (measured with Borg/modified Borg scale, n=8). Sputum volume, lung function, dyspnoea and health- and cough-related quality of life appear to be the most common clinical and patient-reported measures of airway clearance treatment efficacy.
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Affiliation(s)
- Lisa J Franks
- Physiotherapy Dept, The Prince Charles Hospital, Chermside, Australia
- School of Allied Health Sciences and Menzies Health Institute, Griffith University, Brisbane, Australia
| | - James R Walsh
- Physiotherapy Dept, The Prince Charles Hospital, Chermside, Australia
- School of Allied Health Sciences and Menzies Health Institute, Griffith University, Brisbane, Australia
- Heart Lung Institute, The Prince Charles Hospital, Chermside, Australia
| | - Kathleen Hall
- Physiotherapy Dept, The Prince Charles Hospital, Chermside, Australia
- Physiotherapy, School of Allied Health, Australian Catholic University, Brisbane, Australia
| | - Norman R Morris
- School of Allied Health Sciences and Menzies Health Institute, Griffith University, Brisbane, Australia
- Heart Lung Institute, The Prince Charles Hospital, Chermside, Australia
- Allied Health Research Collaborative, Metro North Hospital and Health Service, The Prince Charles Hospital, Chermside, Australia
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Haworth CS, Bilton D, Chalmers JD, Davis AM, Froehlich J, Gonda I, Thompson B, Wanner A, O'Donnell AE. Inhaled liposomal ciprofloxacin in patients with non-cystic fibrosis bronchiectasis and chronic lung infection with Pseudomonas aeruginosa (ORBIT-3 and ORBIT-4): two phase 3, randomised controlled trials. THE LANCET RESPIRATORY MEDICINE 2019; 7:213-226. [DOI: 10.1016/s2213-2600(18)30427-2] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/04/2018] [Accepted: 10/09/2018] [Indexed: 01/04/2023]
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Paredes Aller S, Quittner AL, Salathe MA, Schmid A. Assessing effects of inhaled antibiotics in adults with non-cystic fibrosis bronchiectasis--experiences from recent clinical trials. Expert Rev Respir Med 2018; 12:769-782. [PMID: 30025482 DOI: 10.1080/17476348.2018.1503540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Non-cystic fibrosis bronchiectasis (NCFB) results from a permanent and progressive destruction of the airways leading to poor lung function. NCFB is characterized by recurrent lung infection, sputum production, and cough, often requiring long-term antibiotic therapy and hospitalization. At present, there are no approved therapies available. Clinical trials of inhaled antibiotics have shown promise against sputum bacterial load, but mixed results on clinical outcomes. Areas covered: The objective of this review is to provide an overview of NCFB and critically evaluate the evidence supporting the outcome measures used in recent clinical trials of inhaled antibiotics. These include quantitative changes in bacterial load, sputum purulence and yield, inflammatory markers, and lung function, as well as clinical changes in exacerbations, exacerbation frequency, hospitalizations, and health-related quality of life. Expert commentary: Recently completed large trials of inhaled antibiotics in NCFB did not consistently meet pre-specified end points, suggesting that we have not yet found the best enrollment criteria or outcome measures to evaluate efficacy, although reduced exacerbation frequency may be clinically most meaningful. Future trials may focus on specific patient populations at high risk with new information obtained through analyses of large international patient registries. ABBREVIATIONS 6-MWT: Six-Minute Walk Test; AIR-BX: Aztreonam for Inhalation Solution in Patients with Non-Cystic Fibrosis Bronchiectasis trial; BSI: Bronchiectasis Severity Index; CAT: COPD Assessment Test; CF: Cystic Fibrosis; CFTR: Cystic Fibrosis Transmembrane Conductance Regulator; CFU: Colony-Forming Units; COPD: Chronic Obstructive Pulmonary Disease; CRP: C-Reactive Protein; DPI: Dry Powder for Inhalation; EMA: European Medicines Agency; ERS: European Respiratory Society; FACED: FEV1, Age, Chronic colonization by P. aeruginosa, Extension of bronchiectasis and Dyspnea; FDA: US Food and Drug Administration; FEV1: Forced Expiration in 1 s; FVC: Forced Vital Capacity; HFCC: High-Frequency Chest Compression; HRCT: High-Resolution Computed Tomography; HRQoL: Health-Related Quality of Life; LCQ: Leicester Cough Questionnaire; MID: Minimal Important Difference; NCFB: Non-Cystic Fibrosis Bronchiectasis; NTM: Nontuberculous Mycobacteria; ORBIT: Once-daily Respiratory Bronchiectasis Inhalation Treatment trial; PRO: Patient-Reported Outcomes; QoL-B: Quality of Life-Bronchiectasis; SGRQ: St. George's Respiratory Questionnaire; SWT: Shuttle Walk Test; TORCH: Towards a Revolution in COPD Health trial; UPLIFT: Understanding Potential Long-term Impacts on Function with Tiotropium trial.
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Affiliation(s)
- Sheyla Paredes Aller
- a Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine , University of Miami , Miami , FL , USA
| | - Alexandra L Quittner
- b Miami Children's Research Institute , Nicklaus Children's Research Institute , Miami , FL , USA
| | - Matthias A Salathe
- a Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine , University of Miami , Miami , FL , USA
| | - Andreas Schmid
- a Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine , University of Miami , Miami , FL , USA
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5
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Menéndez R, Méndez R, Polverino E, Rosales-Mayor E, Amara-Elori I, Reyes S, Posadas T, Fernández-Barat L, Torres A. Factors associated with hospitalization in bronchiectasis exacerbations: a one-year follow-up study. Respir Res 2017; 18:176. [PMID: 28964260 PMCID: PMC5622554 DOI: 10.1186/s12931-017-0659-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 09/21/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Bronchiectasis (BE) is a chronic structural lung disease with frequent exacerbations, some of which require hospital admission though no clear associated factors have been identified. We aimed to evaluate factors associated with hospitalization due to exacerbations during a 1-year follow-up period. METHODS A prospective observational study was performed in patients recruited from specialized BE clinics. We considered all exacerbations diagnosed and treated with antibiotics during a follow-up period of 1 year. The protocol recorded baseline variables, usual treatments, Bronchiectasis Severity Index (BSI) and FACED scores, comorbid conditions and prior hospitalizations. RESULTS Two hundred and 65 patients were recruited, of whom 162 required hospital admission during the follow-up period. Independent risk factors for hospital admission were age, previous hospitalization due to BE, use of proton pump inhibitors, heart failure, FACED and BSI, whereas pneumococcal vaccination was a protective factor. The area under the receiver operator characteristic curve (AUC) was 0.799 for BSI model was 0.799, and 0.813 for FACED model. CONCLUSIONS Previous hospitalization, use of proton pump inhibitors, heart failure along with BSI or FACED scores is associated factors for developing exacerbations that require hospitalization. Pneumococcal vaccination was protective. This information may be useful for the design of preventive strategies and more intensive follow-up plans.
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Affiliation(s)
- Rosario Menéndez
- Pneumology Department, Hospital Universitario y Politécnico La Fe / Instituto de Investigación Sanitaria (IIS) La Fe. University of Valencia, Valencia, Spain.
- Centro de Investigación Biomédica En Red-Enfermedades Respiratorias (CIBERES, CB06/06/0028), Madrid, Spain.
| | - Raúl Méndez
- Pneumology Department, Hospital Universitario y Politécnico La Fe / Instituto de Investigación Sanitaria (IIS) La Fe. University of Valencia, Valencia, Spain
| | - Eva Polverino
- Institut D' Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica En Red-Enfermedades Respiratorias (CIBERES, CB06/06/0028), Madrid, Spain
| | - Edmundo Rosales-Mayor
- Institut D' Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Isabel Amara-Elori
- Pneumology Department, Hospital Universitario y Politécnico La Fe / Instituto de Investigación Sanitaria (IIS) La Fe. University of Valencia, Valencia, Spain
| | - Soledad Reyes
- Pneumology Department, Hospital Universitario y Politécnico La Fe / Instituto de Investigación Sanitaria (IIS) La Fe. University of Valencia, Valencia, Spain
| | - Tomás Posadas
- Pneumology Department, Hospital Universitario y Politécnico La Fe / Instituto de Investigación Sanitaria (IIS) La Fe. University of Valencia, Valencia, Spain
| | - Laia Fernández-Barat
- Pneumology Department, Hospital Clínic / Institut D' Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS). University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica En Red-Enfermedades Respiratorias (CIBERES, CB06/06/0028), Madrid, Spain
| | - Antoni Torres
- Pneumology Department, Hospital Clínic / Institut D' Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS). University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica En Red-Enfermedades Respiratorias (CIBERES, CB06/06/0028), Madrid, Spain
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Wilson R, Aksamit T, Aliberti S, De Soyza A, Elborn JS, Goeminne P, Hill AT, Menendez R, Polverino E. Challenges in managing Pseudomonas aeruginosa in non-cystic fibrosis bronchiectasis. Respir Med 2016; 117:179-89. [DOI: 10.1016/j.rmed.2016.06.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 05/24/2016] [Accepted: 06/06/2016] [Indexed: 12/19/2022]
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Grillo L, Irving S, Hansell DM, Nair A, Annan B, Ward S, Bilton D, Main E, Davies J, Bush A, Wilson R, Loebinger MR. The reproducibility and responsiveness of the lung clearance index in bronchiectasis. Eur Respir J 2015; 46:1645-53. [DOI: 10.1183/13993003.00152-2015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/19/2015] [Indexed: 11/05/2022]
Abstract
Lung clearance index (LCI) is a potential clinical outcome marker in bronchiectasis. Its responsiveness to therapeutic intervention has not been determined. This study evaluates its responsiveness to a session of physiotherapy and intravenous antibiotic treatment of an exacerbation.32 stable and 32 exacerbating bronchiectasis patients and 26 healthy controls were recruited. Patients had LCI and lung function performed before and after physiotherapy on two separate occasions in the stable patients and at the beginning and end of an intravenous antibiotic course in the exacerbating patients.LCI was reproducible between visits in 25 stable patients, with an intraclass correlation of 0.978 (0.948, 0.991; p<0.001). There was no significant difference in LCI (mean±sd) between stable 11.91±3.39 and exacerbating patients 12.76±3.47, but LCI was significantly higher in both bronchiectasis groups compared with healthy controls (7.36±0.99) (p<0.001). Forced expiratory volume in 1 s improved after physiotherapy, as did alveolar volume after intravenous antibiotics, but LCI did not change significantly.LCI is reproducible in stable bronchiectasis but unlike conventional lung function tests, is unresponsive to two short-term interventions and hence is unlikely to be a useful clinical tool for short-term acute assessment in these patients. Further evaluation is required to establish its role in milder disease and in the evaluation of long-term interventions.
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8
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Lee AL, Williamson HC, Lorensini S, Spencer LM. The effects of oscillating positive expiratory pressure therapy in adults with stable non-cystic fibrosis bronchiectasis: A systematic review. Chron Respir Dis 2014; 12:36-46. [PMID: 25518845 DOI: 10.1177/1479972314562407] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Airway clearance techniques (ACTs) are recommended for patients with stable non-cystic fibrosis (non-CF) bronchiectasis, but the efficacy of oscillating positive expiratory pressure (PEP) therapy compared to other techniques has not been reviewed. A systematic review of studies was conducted in stable patients comparing the effect of oscillating PEP therapy to other ACTs or a control condition. Data were extracted related to sputum expectoration, lung function, gas exchange, quality of life (QOL), symptoms, and exacerbation rate. Seven studies were included with a total of 146 patients, with a mean (SD) PEDro score of 7(1). Oscillating PEP therapy enhanced sputum expectoration compared to no treatment, but has equivalent benefits as the active cycle of breathing technique with gravity-assisted drainage (mean difference [95% CI] -2.8 g [-8.8 to 3.2 g]). Oscillating PEP has a similar effect as other ACTs on dynamic lung volumes, gas exchange and breathlessness. Use of oscillating PEP improved disease-specific QOL (p < 0.001) and cough-related QOL (p < 0.002) compared to no treatment but did not reduce exacerbation rate. In conclusion, in stable non-CF bronchiectasis, oscillating PEP therapy is associated with improvement in sputum expectoration and QOL compared to no treatment. Compared to other ACTs, the effect upon sputum expectoration, lung function, gas exchange, and symptoms are equivalent.
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Affiliation(s)
- Annemarie L Lee
- Physiotherapy, Alfred Health, Melbourne, Australia Institute for Breathing and Sleep, Austin Health, Heidelberg, Australia
| | | | - Sarah Lorensini
- Physiotherapy, Adelaide Community Healthcare Alliance Health, Ashford, Australia
| | - Lissa M Spencer
- Physiotherapy, Royal Prince Alfred Hospital, Camperdown, NSW, Australia Discipline of Physiotherapy, Faculty of Health Sciences, University of Sydney, NSW, Australia
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9
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Quittner AL, Marciel KK, Salathe MA, O'Donnell AE, Gotfried MH, Ilowite JS, Metersky ML, Flume PA, Lewis SA, McKevitt M, Montgomery AB, O'Riordan TG, Barker AF. A preliminary quality of life questionnaire-bronchiectasis: a patient-reported outcome measure for bronchiectasis. Chest 2014; 146:437-448. [PMID: 24626872 DOI: 10.1378/chest.13-1891] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND The Quality of Life Questionnaire-Bronchiectasis (QOL-B) is the first disease-specific, patient-reported outcome measure for patients with bronchiectasis. Content validity, cognitive testing, responsivity to open-label treatment, and psychometric analyses are presented. METHODS Reviews of literature, existing measures, and physician input were used to generate the initial QOL-B. Modifications following preliminary cognitive testing (N = 35 patients with bronchiectasis) generated version (V) 1.0. An open-ended patient interview study (N = 28) provided additional information and was content analyzed to derive saturation matrices, which summarized all disease-related topics mentioned by each participant. This resulted in QOL-B V2.0. Psychometric analyses were carried out using results from an open-label phase 2 trial, in which 89 patients were enrolled and treated with aztreonam for inhalation solution. Responsivity to open-label treatment was observed. Additional analyses generated QOL-B V3.0, with 37 items on eight scales: respiratory symptoms; physical, role, emotional, and social functioning; vitality; health perceptions; and treatment burden. For each scale, scores are standardized on a 0-to-100-point scale; higher scores indicate better health-related quality of life. No total score is calculated. A final cognitive testing study (N = 40) resulted in a minor change to one social functioning scale item (QOL-B V3.1). RESULTS Content validity, cognitive testing, responsivity to open-label treatment, and initial psychometric analyses supported QOL-B items and structure. CONCLUSIONS This interim QOL-B is a promising tool for evaluating the efficacy of new therapies for patients with bronchiectasis and for measuring symptoms, functioning, and quality of life in these patients on a routine basis. A final psychometric validation study is needed and is forthcoming. TRIAL REGISTRY ClinicalTrials.gov; No.: NCT00805025; URL: www.clinicaltrials.gov.
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Affiliation(s)
- Alexandra L Quittner
- Department of Psychology and Pediatrics, Department of Medicine, University of Miami, Coral Gables, FL.
| | - Kristen K Marciel
- Department of Psychology and Pediatrics, Department of Medicine, University of Miami, Coral Gables, FL
| | - Matthias A Salathe
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Miami, Coral Gables, FL
| | - Anne E O'Donnell
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Georgetown University, Washington, DC
| | - Mark H Gotfried
- Pulmonary Associates, Phoenix, AZ; University of Arizona, Phoenix, AZ
| | - Jonathan S Ilowite
- Department of Medicine, Division of Pulmonary and Critical Care, Winthrop University Hospital, Mineola, NY
| | - Mark L Metersky
- Division of Pulmonary and Critical Care, University of Connecticut School of Medicine, University of Connecticut, Farmington, CT
| | - Patrick A Flume
- Division of Pulmonary and Critical Care Medicine, Medical University of South Carolina, Charleston, SC
| | | | | | | | - Thomas G O'Riordan
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Georgetown University, Washington, DC; Gilead Sciences, Seattle, WA; Seattle, WACardeas Pharma, Seattle, WA
| | - Alan F Barker
- Department of Medicine, Division of Pulmonary and Critical Care, Oregon Health and Science University, Portland, OR
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Quittner AL, O'Donnell AE, Salathe MA, Lewis SA, Li X, Montgomery AB, O'Riordan TG, Barker AF. Quality of Life Questionnaire-Bronchiectasis: final psychometric analyses and determination of minimal important difference scores. Thorax 2014; 70:12-20. [PMID: 25323621 DOI: 10.1136/thoraxjnl-2014-205918] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The Quality of Life-Bronchiectasis (QOL-B), a self-administered, patient-reported outcome measure assessing symptoms, functioning and health-related quality of life for patients with non-cystic fibrosis (CF) bronchiectasis, contains 37 items on 8 scales (Respiratory Symptoms, Physical, Role, Emotional and Social Functioning, Vitality, Health Perceptions and Treatment Burden). METHODS Psychometric analyses of QOL-B V.3.0 used data from two double-blind, multicentre, randomised, placebo-controlled, phase III trials of aztreonam for inhalation solution (AZLI) in 542 patients with non-CF bronchiectasis and Gram-negative endobronchial infection. RESULTS Excellent internal consistency (Cronbach's α ≥0.70) and 2-week test-retest reliability (intraclass correlation coefficients ≥0.72) were demonstrated for each scale. Convergent validity with 6 min walk test was observed for Physical and Role Functioning scores. No floor or ceiling effects (baseline scores of 0 or 100) were found for the Respiratory Symptoms scale (primary endpoint of trials). Baseline Respiratory Symptoms scores discriminated between patients based on baseline FEV₁% predicted in only one trial. The minimal important difference score for the Respiratory Symptoms scale was 8.0 points. AZLI did not show efficacy in the two phase III trials. QOL-B responsivity to treatment was assessed by examining changes from baseline QOL-B scores at study visits at which protocol-defined pulmonary exacerbations were reported. Mean Respiratory Symptoms scores decreased 14.0 and 14.2 points from baseline for placebo-treated and AZLI-treated patients with exacerbations, indicating that worsening respiratory symptoms were reflected in clinically meaningful changes in QOL-B scores. CONCLUSIONS Previously established content validity, reliability and responsivity of the QOL-B are confirmed by this final validation study. The QOL-B is available for use in clinical trials and routine clinical practice.
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Affiliation(s)
- Alexandra L Quittner
- Department of Psychology & Pediatrics, University of Miami, and Behavioral Health Sciences Research, Coral Gables, Florida, USA
| | - Anne E O'Donnell
- Division of Pulmonary, Critical Care & Sleep Medicine, Department of Medicine, Georgetown University, Washington, District of Columbia, USA
| | - Matthias A Salathe
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Miami, Miami, Florida, USA
| | | | - Xiaoming Li
- Gilead Sciences Inc., Seattle, Washington, USA
| | | | | | - Alan F Barker
- Department of Medicine, Division of Pulmonary and Critical Care, Oregon Health & Science University, Portland, Oregon, USA
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Grimwood K, Bell SC, Chang AB. Antimicrobial treatment of non-cystic fibrosis bronchiectasis. Expert Rev Anti Infect Ther 2014; 12:1277-96. [PMID: 25156239 DOI: 10.1586/14787210.2014.952282] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Bronchiectasis unrelated to cystic fibrosis is characterized by chronic wet or productive cough, recurrent exacerbations and irreversible bronchial dilatation. After antibiotics and vaccines became available and living standards in affluent countries improved, its resulting reduced prevalence meant bronchiectasis was considered an 'orphan disease'. This perception has changed recently with increasing use of CT scans to diagnose bronchiectasis, including in those with severe chronic obstructive pulmonary disease or 'difficult to control' asthma, and adds to its already known importance in non-affluent countries and disadvantaged Indigenous communities. Following years of neglect, there is renewed interest in identifying the pathogenetic mechanisms of bronchiectasis, including the role of infection, and conducting clinical trials. This is providing much needed evidence to guide antimicrobial therapy, which has relied previously upon extrapolating treatments used in cystic fibrosis and chronic obstructive pulmonary disease. While many knowledge gaps and management challenges remain, the future is improving for patients with bronchiectasis.
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Affiliation(s)
- Keith Grimwood
- Griffith Health Institute, Griffith University, Gold Coast, QLD 4222, Australia
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12
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Aztreonam for inhalation solution in patients with non-cystic fibrosis bronchiectasis (AIR-BX1 and AIR-BX2): two randomised double-blind, placebo-controlled phase 3 trials. THE LANCET RESPIRATORY MEDICINE 2014; 2:738-49. [PMID: 25154045 DOI: 10.1016/s2213-2600(14)70165-1] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND The clinical benefit of inhaled antibiotics in non-cystic fibrosis bronchiectasis has not been established in randomised controlled trials. We aimed to assess safety and efficacy of aztreonam for inhalation solution (AZLI) in patients with non-cystic fibrosis bronchiectasis and Gram-negative bacterial colonisation. METHODS AIR-BX1 and AIR-BX2 were two double-blind, multicentre, randomised, placebo-controlled phase 3 trials, which included patients aged 18 years or older who had bronchiectasis and history of positive sputum or bronchoscopic culture for target Gram-negative organisms. Patients were randomly assigned to receive either AZLI or placebo (1:1). Randomisation was done without stratification and the code was generated by a Gilead designee. In both studies, two 4-week courses of AZLI 75 mg or placebo (three-times daily; eFlow nebulizer) were each followed by a 4-week off-treatment period. Primary endpoint was change from baseline Quality of Life-Bronchiectasis Respiratory Symptoms scores (QOL-B-RSS) at 4 weeks. These trials are registered with ClinicalTrials.gov, numbers are NCT01313624 for AIR-BX1 and NCT01314716 for AIR-BX2. FINDINGS We recruited participants from 47 ambulatory clinics for AIR-BX1 and 65 ambulatory clinics for AIR-BX2; studies were done between April 25, 2011, and July 1, 2013. In AIR-BX1, of the 348 patients screened, 134 were randomly assigned to receive AZLI and 132 to receive placebo. In AIR-BX2, of the 404 patients screened, 136 were randomly assigned to receive AZLI and 138 to receive placebo. The difference between AZLI and placebo for adjusted mean change from baseline QOL-B-RSS was not significant at 4 weeks (0.8 [95% CI -3.1 to 4.7], p=0.68) in AIR-BX1, but was significant (4.6 [1.1 to 8.2], p=0.011) in AIR-BX2. The 4.6 point difference in QOL-B-RSS after 4 weeks in AIR-BX2 was not deemed clinically significant. In both studies, treatment-related adverse events were more common in the AZLI group than in the placebo group, as were discontinuations from adverse events. The most commonly reported treatment-emergent adverse events were dyspnea, cough, and increased sputum. Each was more common for AZLI-treated than for placebo-treated patients, but the incidences were more balanced in AIR-BX2. INTERPRETATION AZLI treatment did not provide significant clinical benefit in non-cystic fibrosis bronchiectasis, as measured by QOL-B-RSS, suggesting a continued need for placebo-controlled studies to establish the clinical benefit of inhaled antibiotics in patients with this disorder. FUNDING Gilead Sciences.
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Lee AL, Hill CJ, Cecins N, Jenkins S, McDonald CF, Burge AT, Rautela L, Stirling RG, Thompson PJ, Holland AE. Minimal important difference in field walking tests in non-cystic fibrosis bronchiectasis following exercise training. Respir Med 2014; 108:1303-9. [PMID: 25087836 DOI: 10.1016/j.rmed.2014.07.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/03/2014] [Accepted: 07/07/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND The 6-min walk distance (6MWD) and incremental shuttle walk distance (ISWD) are clinically meaningful measures of exercise capacity in people with non-cystic fibrosis (CF) bronchiectasis, but the change in walking distance which constitutes clinical benefit is undefined. This study aimed to determine the minimal important difference for the 6MWD and ISWD in non-CF bronchiectasis. METHODS Thirty-seven participants with mean FEV1 70% predicted completed both field walking tests before and after an 8-week exercise program. The minimal important difference was calculated using a distribution-based and anchor-based method, with the global rating of change scale used. RESULTS The mean change in 6MWD in participants who reported themselves to be unchanged was 10 m, compared to 36 m (small change) and 45 m (substantial change) (p = 0.01). For the ISWD, the mean change in participants who reported themselves to be unchanged was 33 m, compared to 54 m (small change) and 73 m (substantial change) (p = 0.04). The anchor-based method defined the minimal important difference for 6MWD as 24.5 m (AUC 0.76, 95% CI 0.61-0.91) and for ISWD as 35 m (AUC 0.88, 95% CI 0.73-0.99), based on participant's global rating of change. The distribution-based method indicated a value of 22.3 m for the 6MWD and 37 m for the ISWD. There was excellent agreement between the two methods for the 6MWD (kappa = 0.91) and the ISWD (kappa = 0.92). CONCLUSIONS Small changes in 6MWD and ISWD may represent clinically important benefits in people with non-CF bronchiectasis. These data are likely to assist in the interpretation of change in exercise capacity following intervention.
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Affiliation(s)
- A L Lee
- Alfred Health, Commercial Road, Melbourne 3004, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia; Physiotherapy, Melbourne School of Health Sciences, The University of Melbourne, 161 Barry Street, Carlton 3010, Victoria, Australia.
| | - C J Hill
- Institute for Breathing and Sleep, Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia; Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia.
| | - N Cecins
- Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, Perth 6009, Australia; Lung Institute of Western Australia and Centre for Asthma, Allergy and Respiratory Research, Hospital Avenue, Nedlands, Perth 6009, Australia.
| | - S Jenkins
- Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, Perth 6009, Australia; Lung Institute of Western Australia and Centre for Asthma, Allergy and Respiratory Research, Hospital Avenue, Nedlands, Perth 6009, Australia; Curtin University, Kent Street, Bentley, Perth 6102, Australia.
| | - C F McDonald
- Institute for Breathing and Sleep, Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia; Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia.
| | - A T Burge
- Alfred Health, Commercial Road, Melbourne 3004, Victoria, Australia.
| | - L Rautela
- Institute for Breathing and Sleep, Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia; Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia.
| | - R G Stirling
- Alfred Health, Commercial Road, Melbourne 3004, Victoria, Australia; Department of Medicine, Monash University, Melbourne 3800, Australia.
| | - P J Thompson
- Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, Perth 6009, Australia; Lung Institute of Western Australia and Centre for Asthma, Allergy and Respiratory Research, Hospital Avenue, Nedlands, Perth 6009, Australia; Curtin University, Kent Street, Bentley, Perth 6102, Australia.
| | - A E Holland
- Alfred Health, Commercial Road, Melbourne 3004, Victoria, Australia; Institute for Breathing and Sleep, Austin Health, 145 Studley Road, Heidelberg 3084, Victoria, Australia; Physiotherapy, La Trobe University, 99 Commercial Road, Melbourne 3004, Victoria, Australia.
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Hill AT, Flume PA. Lung Clearance Index. A Potential Quantitative Tool to Assess Treatment Response in Bronchiectasis? Am J Respir Crit Care Med 2014; 189:510-1. [DOI: 10.1164/rccm.201401-0129ed] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Sunny SS, Davison J, De Soyza A. Management of non-cystic fibrosis bronchiectasis. ACTA ACUST UNITED AC 2013. [DOI: 10.2217/cpr.13.49] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Amorim A, Gamboa F, Azevedo P. New advances in the therapy of non-cystic fibrosis bronchiectasis. REVISTA PORTUGUESA DE PNEUMOLOGIA 2013; 19:266-75. [PMID: 23850192 DOI: 10.1016/j.rppneu.2013.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Accepted: 03/21/2013] [Indexed: 12/15/2022] Open
Abstract
Non-cystic fibrosis bronchiectasis remains a common and important respiratory disease to date. It is a chronic pathology and consequently the patients usually require continuous treatment. In recent decades therapies that do not have scientific evidence of their benefits have been commonly used in non-cystic fibrosis bronchiectasis. Cystic fibrosis has provided the experience to extrapolate therapeutic approaches to other bronchiectasis patients. Finally, in the last few years some trials have been carried out specifically in non-cystic fibrosis bronchiectasis which aim to assess the efficacy of some of the treatments which are commonly used but sometimes without clear indication. This review will discuss the recent results from these trials, namely mucoactive, anti-inflammatory and antibiotic therapy. Several trials are ongoing and we hope they will be able to add clarification to the management of these patients.
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Affiliation(s)
- A Amorim
- Pneumology Department, Centro Hospitalar São João, EPE, Faculty of Medicine, University of Porto, Porto, Portugal.
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Mandal P, Morice AH, Chalmers JD, Hill AT. Symptoms of airway reflux predict exacerbations and quality of life in bronchiectasis. Respir Med 2013; 107:1008-13. [PMID: 23683772 DOI: 10.1016/j.rmed.2013.04.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Revised: 03/30/2013] [Accepted: 04/05/2013] [Indexed: 12/11/2022]
Abstract
AIM We have explored the association of the upper airway symptoms related to cough with exacerbation frequency, sputum microbiology and inflammatory markers in patients with non cystic fibrosis bronchiectasis. METHODS Patients with bronchiectasis completed the Hull Airway Reflux Questionnaire (HARQ). A score of >13 was taken to indicate the presence of reflux. Patients were followed-up with longitudinal spirometry, sputum culture and Leicester cough questionnaire (LCQ). Myeloperoxidase (MPO), free neutrophil elastase (NE) activity, Interleukin (IL)-8 and Tumour Necrosis Factor (TNF)-α was measured from spontaneous sputum samples. RESULTS 163 completed the study. 59.5% were female. Mean age was 65.7 years. 73.6% reported airway reflux using HARQ. Patients with airway reflux had more severe cough symptoms as assessed by the LCQ [15.2 (3.5) vs. 19.4 (1.9)], p < 0.001. Sputum levels of MPO, NE, IL-8 and TNF-α were all significantly higher in the reflux positive group (p < 0.05 for all comparisons). In a multivariable logistic regression, airway reflux was independently associated with cough severity (-3.27, standard error 0.81, p = 0.0002). Airway reflux, age, FEV1 % predicted and colonization with Pseudomonas aeruginosa were independently associated with an increased risk of ≥3 bronchiectasis exacerbations in one year. CONCLUSION The symptoms of airway reflux independently predict severity and exacerbation frequency in non cystic fibrosis bronchiectasis.
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Affiliation(s)
- P Mandal
- Centre for Inflammation Research, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
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