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Blondeel A, Hermans F, Breuls S, Wuyts M, Everaerts S, Gyselinck I, De Maeyer N, Verniest T, Derom E, Janssens W, Troosters T, Demeyer H. Factors associated to physical activity in patients with COPD: An ecological approach. Respir Med 2023; 219:107424. [PMID: 37820971 DOI: 10.1016/j.rmed.2023.107424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND Physical activity (PA) is low in patients with Chronic Obstructive Pulmonary Disease (COPD). Identifying modifiable and non-modifiable correlates of PA give understanding of the individual behavior and provide future directions for PA enhancing interventions. As PA is complex and multidimensional, it should be embedded within a thorough framework. OBJECTIVE To identify correlates of PA in a comprehensive COPD population based on a broad ecological model, including physiological, psychological, socio-demographic and environmental dimensions. METHODS PA was objectively measured using the Dynaport Movemonitor and a comprehensive data collection of physiological, psychological, socio-demographic and environmental factors were collected. Bivariable and multivariable regression analyses (including principle component analysis) were executed. RESULTS For this cross-sectional analysis, we included 148 patients with COPD and valid PA data (mean (SD) age 68 (7) years, FEV1 57 (17) % predicted, 5613 (3596) steps per day). Significant bivariable associations were found for physiological (exercise capacity, muscle force, lung function, symptoms, comorbidities), psychological (e.g. fatigue, motivation, perceived difficulty with PA), socio-demographic (dog owning, use of activity tracker) and environmental (season, daylight, temperature) factors. Based on the multivariable regression model, exercise capacity, beliefs on motivation, importance and self-confidence regarding PA and weather conditions were independent correlates of mean steps per day (R2 = 0.35). Movement intensity during walking was only independently associated with exercise capacity and age (R2 = 0.41). CONCLUSION Although a wide range of potential influence factors were evaluated, variance in PA was only partly explained, supporting that PA is a complex behavior which is difficult to predict.
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Affiliation(s)
- Astrid Blondeel
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Fien Hermans
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium; Department of Rehabilitation Sciences, Ghent University, Gent, Belgium
| | - Sofie Breuls
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Marieke Wuyts
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium; Department of Rehabilitation Sciences, Ghent University, Gent, Belgium
| | - Stephanie Everaerts
- Department of Chronic Diseases, Metabolism and Aging (CHROMETA) - BREATHE, KU Leuven, Leuven, Belgium; Clinical Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
| | - Iwein Gyselinck
- Department of Chronic Diseases, Metabolism and Aging (CHROMETA) - BREATHE, KU Leuven, Leuven, Belgium
| | - Nikolaas De Maeyer
- Clinical Department of Respiratory Diseases, Regional Hospital Heilig Hart Leuven, Leuven, Belgium
| | - Thessa Verniest
- Clinical Department of Respiratory Diseases, Regional Hospital Heilig Hart Leuven, Leuven, Belgium
| | - Eric Derom
- Clinical Department of Respiratory Medicine, University Hospital Gent, Gent, Belgium
| | - Wim Janssens
- Department of Chronic Diseases, Metabolism and Aging (CHROMETA) - BREATHE, KU Leuven, Leuven, Belgium; Clinical Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
| | | | - Heleen Demeyer
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium; Department of Rehabilitation Sciences, Ghent University, Gent, Belgium.
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de Fays C, Geudens V, Gyselinck I, Kerckhof P, Vermaut A, Goos T, Vermant M, Beeckmans H, Kaes J, Van Slambrouck J, Mohamady Y, Willems L, Aversa L, Cortesi EE, Hooft C, Aerts G, Aelbrecht C, Everaerts S, McDonough JE, De Sadeleer LJ, Gohy S, Ambroise J, Janssens W, Ceulemans LJ, Van Raemdonck D, Vos R, Hackett TL, Hogg JC, Kaminski N, Gayan-Ramirez G, Pilette C, Vanaudenaerde BM. Mucosal immune alterations at the early onset of tissue destruction in chronic obstructive pulmonary disease. Front Immunol 2023; 14:1275845. [PMID: 37915582 PMCID: PMC10616299 DOI: 10.3389/fimmu.2023.1275845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/29/2023] [Indexed: 11/03/2023] Open
Abstract
Rationale COPD is characterized by chronic airway inflammation, small airways changes, with disappearance and obstruction, and also distal/alveolar destruction (emphysema). The chronology by which these three features evolve with altered mucosal immunity remains elusive. This study assessed the mucosal immune defense in human control and end-stage COPD lungs, by detailed microCT and RNA transcriptomic analysis of diversely affected zones. Methods In 11 control (non-used donors) and 11 COPD (end-stage) explant frozen lungs, 4 cylinders/cores were processed per lung for microCT and tissue transcriptomics. MicroCT was used to quantify tissue percentage and alveolar surface density to classify the COPD cores in mild, moderate and severe alveolar destruction groups, as well as to quantify terminal bronchioles in each group. Transcriptomics of each core assessed fold changes in innate and adaptive cells and pathway enrichment score between control and COPD cores. Immunostainings of immune cells were performed for validation. Results In mildly affected zones, decreased defensins and increased mucus production were observed, along CD8+ T cell accumulation and activation of the IgA pathway. In more severely affected zones, CD68+ myeloid antigen-presenting cells, CD4+ T cells and B cells, as well as MHCII and IgA pathway genes were upregulated. In contrast, terminal bronchioles were decreased in all COPD cores. Conclusion Spatial investigation of end-stage COPD lungs show that mucosal defense dysregulation with decreased defensins and increased mucus and IgA responses, start concomitantly with CD8+ T-cell accumulation in mild emphysema zones, where terminal bronchioles are already decreased. In contrast, adaptive Th and B cell activation is observed in areas with more advanced tissue destruction. This study suggests that in COPD innate immune alterations occur early in the tissue destruction process, which affects both the alveoli and the terminal bronchioles, before the onset of an adaptive immune response.
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Affiliation(s)
- Charlotte de Fays
- Pole of Pneumology, ENT, and Dermatology, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Vincent Geudens
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Iwein Gyselinck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Pieterjan Kerckhof
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Astrid Vermaut
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Tinne Goos
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Marie Vermant
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Hanne Beeckmans
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Janne Kaes
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Jan Van Slambrouck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Yousry Mohamady
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Lynn Willems
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Lucia Aversa
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Emanuela E. Cortesi
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Charlotte Hooft
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Gitte Aerts
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Celine Aelbrecht
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Stephanie Everaerts
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - John E. McDonough
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - Laurens J. De Sadeleer
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Sophie Gohy
- Pole of Pneumology, ENT, and Dermatology, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
- Department of Pneumology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Jerome Ambroise
- Centre de Technologies Moléculaires Appliquées, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Wim Janssens
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Laurens J. Ceulemans
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Dirk Van Raemdonck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Robin Vos
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Tillie L. Hackett
- Centre for Heart Lung Innovation, St Paul’s Hospital, Vancouver, BC, Canada
| | - James C. Hogg
- Centre for Heart Lung Innovation, St Paul’s Hospital, Vancouver, BC, Canada
| | - Naftali Kaminski
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - Ghislaine Gayan-Ramirez
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
| | - Charles Pilette
- Pole of Pneumology, ENT, and Dermatology, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
- Department of Pneumology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Bart M. Vanaudenaerde
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of CHROMETA, KULeuven, Leuven, Belgium
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Verstraete K, Gyselinck I, Huts H, Das N, Topalovic M, De Vos M, Janssens W. Estimating individual treatment effects on COPD exacerbations by causal machine learning on randomised controlled trials. Thorax 2023; 78:983-989. [PMID: 37012070 PMCID: PMC10511983 DOI: 10.1136/thorax-2022-219382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 03/13/2023] [Indexed: 04/05/2023]
Abstract
RATIONALE Estimating the causal effect of an intervention at individual level, also called individual treatment effect (ITE), may help in identifying response prior to the intervention. OBJECTIVES We aimed to develop machine learning (ML) models which estimate ITE of an intervention using data from randomised controlled trials and illustrate this approach with prediction of ITE on annual chronic obstructive pulmonary disease (COPD) exacerbation rates. METHODS We used data from 8151 patients with COPD of the Study to Understand Mortality and MorbidITy in COPD (SUMMIT) trial (NCT01313676) to address the ITE of fluticasone furoate/vilanterol (FF/VI) versus control (placebo) on exacerbation rate and developed a novel metric, Q-score, for assessing the power of causal inference models. We then validated the methodology on 5990 subjects from the InforMing the PAthway of COPD Treatment (IMPACT) trial (NCT02164513) to estimate the ITE of FF/umeclidinium/VI (FF/UMEC/VI) versus UMEC/VI on exacerbation rate. We used Causal Forest as causal inference model. RESULTS In SUMMIT, Causal Forest was optimised on the training set (n=5705) and tested on 2446 subjects (Q-score 0.61). In IMPACT, Causal Forest was optimised on 4193 subjects in the training set and tested on 1797 individuals (Q-score 0.21). In both trials, the quantiles of patients with the strongest ITE consistently demonstrated the largest reductions in observed exacerbations rates (0.54 and 0.53, p<0.001). Poor lung function and blood eosinophils, respectively, were the strongest predictors of ITE. CONCLUSIONS This study shows that ML models for causal inference can be used to identify individual response to different COPD treatments and highlight treatment traits. Such models could become clinically useful tools for individual treatment decisions in COPD.
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Affiliation(s)
- Kenneth Verstraete
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium
| | - Iwein Gyselinck
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Helene Huts
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium
| | - Nilakash Das
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | | | - Maarten De Vos
- STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Wim Janssens
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
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Geudens V, Van Slambrouck J, Aerts G, Willems L, Goos T, Kaes J, Zajacova A, Gyselinck I, Aelbrecht C, Vermaut A, Beeckmans H, Vermant M, De Fays C, Sacreas A, Aversa L, Orlitova M, Vanstapel A, Josipovic I, Boone MN, McDonough JE, Weynand B, Pilette C, Janssens W, Dupont L, Wuyts WA, Verleden GM, Van Raemdonck DE, Vos R, Gayan-Ramirez G, Ceulemans LJ, Vanaudenaerde BM. COVID-19 progression in hospitalized patients using follow-up in vivo CT and ex vivo microCT. J Thorac Dis 2023; 15:3646-3661. [PMID: 37559650 PMCID: PMC10407474 DOI: 10.21037/jtd-22-1488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 05/31/2023] [Indexed: 08/11/2023]
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease-19 (COVID-19) which can lead to acute respiratory distress syndrome (ARDS) and evolve to pulmonary fibrosis. Computed tomography (CT) is used to study disease progression and describe radiological patterns in COVID-19 patients. This study aimed to assess disease progression regarding lung volume and density over time on follow-up in vivo chest CT and give a unique look at parenchymal and morphological airway changes in "end-stage" COVID-19 lungs using ex vivo microCT. METHODS Volumes and densities of the lung/lobes of three COVID-19 patients were assessed using follow-up in vivo CT and ex vivo whole lung microCT scans. Airways were quantified by airway segmentations on whole lung microCT and small-partition microCT. As controls, three discarded healthy donor lungs were used. Histology was performed in differently affected regions in the COVID-19 lungs. RESULTS In vivo, COVID-19 lung volumes decreased while density increased over time, mainly in lower lobes as previously shown. Ex vivo COVID-19 lung volumes decreased by 60% and all lobes were smaller compared to controls. Airways were more visible on ex vivo microCT in COVID-19, probably due to fibrosis and increased airway diameter. In addition, small-partition microCT showed more deformation of (small) airway morphology and fibrotic organization in severely affected regions with heterogeneous distributions within the same lung which was confirmed by histology. CONCLUSIONS COVID-19-ARDS and subsequent pulmonary fibrosis alters lung architecture and airway morphology which is described using in vivo CT, ex vivo microCT, and histology.
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Affiliation(s)
- Vincent Geudens
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Jan Van Slambrouck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Gitte Aerts
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Lynn Willems
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Tinne Goos
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Janne Kaes
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Andrea Zajacova
- Prague Lung Transplant Program, Department of Pneumology, Motol University Hospital, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Iwein Gyselinck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Celine Aelbrecht
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Astrid Vermaut
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Hanne Beeckmans
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Marie Vermant
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Charlotte De Fays
- Department of Pneumology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Annelore Sacreas
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Lucia Aversa
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Michaela Orlitova
- Division of Anesthesiology and Algology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Arno Vanstapel
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Ivan Josipovic
- Department of Physics and Astronomy, Centre for X-Ray Tomography (UGCT), Radiation Physics, Ghent University, Gent, Belgium
| | - Matthieu N. Boone
- Department of Physics and Astronomy, Centre for X-Ray Tomography (UGCT), Radiation Physics, Ghent University, Gent, Belgium
| | - John E. McDonough
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Birgit Weynand
- Department of Imaging & Pathology, KU Leuven, Leuven, Belgium
| | - Charles Pilette
- Department of Pneumology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Wim Janssens
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Lieven Dupont
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Wim A. Wuyts
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Geert M. Verleden
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Dirk E. Van Raemdonck
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Robin Vos
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Ghislaine Gayan-Ramirez
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Laurens J. Ceulemans
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
| | - Bart M. Vanaudenaerde
- Laboratory of Respiratory Diseases and Thoracic Surgery, BREATHE, Department of Chrometa, KU Leuven, Leuven, Belgium
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Gyselinck I, Ramakrishnan S, Vermeersch K, Halner A, Pott H, Dobbels F, Coleman C, Collis P, Watz H, Greulich T, Franssen FM, Burgel PR, Bafadhel M, Janssens W. Patients' acceptance of outcome and experience measurements during hospitalisation for COPD exacerbations: a CICERO Clinical Research Collaboration-European Lung Foundation online patient survey. ERJ Open Res 2023; 9:00148-2023. [PMID: 37404845 PMCID: PMC10316033 DOI: 10.1183/23120541.00148-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 04/18/2023] [Indexed: 07/06/2023] Open
Abstract
Background The lack of standardised outcome assessments during hospitalisation and follow-up for acute COPD exacerbations has hampered scientific progress and clinical proficiency. The objective of the present study was to evaluate patients' acceptance of selected outcome and experience measurements during hospitalisations for COPD exacerbations and follow-up. Methods An online survey was held amongst COPD patients in France, Belgium, The Netherlands, Germany and the UK. The European Lung Foundation COPD Patient Advisory Group was involved in the conceptualisation, development and dissemination of the survey. The survey was complementary to a previously obtained expert consensus. We assessed patients' views and acceptance of selected patient-reported outcomes or experiences and corresponding measurement instruments (for dyspnoea, frequent productive cough, health status and hospitalisation experience), and of selected clinical investigations (blood draw, pulmonary function test, 6-min walk test, chest computed tomography, echocardiography). Findings 200 patients completed the survey. All selected outcomes and experiences were deemed important, and acceptance of their methods of assessment was high. The modified Medical Research Council scale and a numerical rating scale to address dyspnoea, the COPD Assessment Test for quality of life and frequent productive cough, and the Hospital Consumer Assessment of Healthcare Providers and Systems for hospital experiences were the instruments preferred by patients. Consensus on importance of blood draw and spirometry was higher compared with the other investigations. Interpretation The survey results endorse the use of the selected outcome and experience measurements during hospitalisations for COPD exacerbations. They can be used to optimise standardised and patient-centred care and facilitate multicentric data collection.
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Affiliation(s)
- Iwein Gyselinck
- Clinical Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
- BREATHE Lab, CHROMETA Department, KU Leuven, Leuven, Belgium
| | - Sanjay Ramakrishnan
- Respiratory Medicine Unit, Nuffield Department of Medicine – Experimental Medicine, University of Oxford, Oxford, UK
- National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Kristina Vermeersch
- Clinical Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
- BREATHE Lab, CHROMETA Department, KU Leuven, Leuven, Belgium
| | - Andreas Halner
- Respiratory Medicine Unit, Nuffield Department of Medicine – Experimental Medicine, University of Oxford, Oxford, UK
- National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Hendrik Pott
- Philipps-University Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Centre Giessen and Marburg; Philipps-University, German Center for Lung Research (DZL), Marburg, Germany
| | - Fabienne Dobbels
- Center for Nursing and Midwifery, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | | | | | - Henrik Watz
- Pulmonary Research Institute at Lungen Clinic Grosshansdorf, Grosshansdorf, Germany
- Airway Research Center North and DZL, Grosshansdorf, Germany
| | - Timm Greulich
- Philipps-University Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Centre Giessen and Marburg; Philipps-University, German Center for Lung Research (DZL), Marburg, Germany
| | - Frits M.E. Franssen
- Department of Research and Education, CIRO, Horn, Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Pierre-Régis Burgel
- Assistance Publique Hôpitaux de Paris, Department of Respiratory Medicine, Hopital Cochin Pneumologie, Paris, France
- Université Paris Cité, Institut Cochin, Inserm U1016, Paris, France
| | - Mona Bafadhel
- School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Department of Respiratory Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Wim Janssens
- Clinical Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
- BREATHE Lab, CHROMETA Department, KU Leuven, Leuven, Belgium
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6
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Das N, Happaerts S, Gyselinck I, Staes M, Derom E, Brussselle G, Burgos F, Contoli M, Dinh-Xuan AT, Franssen FME, Gonem S, Greening N, Haenebalcke C, Man WDC, Moisés J, Peché R, Poberezhets V, Quint JK, Steiner MC, Vanderhelst E, Abdo M, Topalovic M, Janssens W. Collaboration between explainable artificial intelligence and pulmonologists improves the accuracy of pulmonary function test interpretation. Eur Respir J 2023; 61:13993003.01720-2022. [PMID: 37080566 DOI: 10.1183/13993003.01720-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 03/09/2023] [Indexed: 04/22/2023]
Abstract
RATIONALE Few studies have investigated the collaborative potential between artificial intelligence (AI) and pulmonologists for diagnosing pulmonary disease. We hypothesized that the collaboration between pulmonologist and AI with explanations (explainable AI, XAI) is superior in diagnostic interpretation of pulmonary function tests (PFTs) than a pulmonologist without support. MATERIALS AND METHODS The study was conducted in two phases, a mono-centre (P1) and a multi-centre intervention study (P2). Each phase utilized two different sets of 24 PFT reports of patients with a clinically validated gold-standard diagnosis. Each PFT was interpreted without (control) and with XAI's suggestions (intervention). Pulmonologists provided a differential diagnosis consisting of a preferential diagnosis and optionally up to three additional diagnoses. Primary endpoint compared accuracy of preferential and additional diagnoses between control and intervention. Secondary endpoints were number of diagnoses in differential diagnosis, diagnostic confidence and inter-rater agreement. We also analysed how XAI influenced pulmonologists' decisions. RESULTS In P1 (N=16 pulmonologists), mean preferential and differential diagnostic accuracy significantly increased by 10.4% and 9.4%, respectively between control and intervention (p<0.001). Improvements were somewhat lower but highly significant (p<0.0001) in P2 (5.4% and 8.7% respectively, N=62 pulmonologists). In both phases, the number of diagnoses in differential diagnosis did not reduce, but diagnostic confidence and inter-rater agreement significantly increased during intervention. Pulmonologists updated their decisions with XAI's feedback and consistently improved their baseline performance if AI provided correct predictions. CONCLUSION A collaboration between pulmonologist and XAI is better at interpreting PFTs than individual pulmonologists reading without XAI support or XAI alone.
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Affiliation(s)
- Nilakash Das
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases Metabolism and Ageing, KU LEUVEN, Leuven, Belgium
| | - Sofie Happaerts
- Clinical department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
| | - Iwein Gyselinck
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases Metabolism and Ageing, KU LEUVEN, Leuven, Belgium
- Clinical department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
| | - Michael Staes
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases Metabolism and Ageing, KU LEUVEN, Leuven, Belgium
- Clinical department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
| | | | | | - Felip Burgos
- Department of Pulmonary Medicine, Hospital Clinic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Marco Contoli
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Anh Tuan Dinh-Xuan
- Service de Physiologie-Explorations Fonctionnelles, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Université Paris Cité, Paris, France
| | - Frits M E Franssen
- Department of Respiratory Medicine and School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, Maastricht, Netherlands
| | | | - Neil Greening
- Leicester NIHR Biomedical Research Centre - respiratory, Department of Respiratory Sciences, University of Leicester, UK
| | | | - William D-C Man
- National Heart and Lung Institute, Imperial College London, UK
- Royal Brompton and Harefield Clinical Group, Guy's and St.Thomas' NHS Foundation Trust, UK
| | - Jorge Moisés
- Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Madrid, Spain
| | | | - Vitalii Poberezhets
- Department of Propedeutics of Internal Medicine, National Pirogov Memorial Medical University, Vinnytsya, Ukraine
| | - Jennifer K Quint
- National Heart and Lung Institute, Imperial College London, UK
- Royal Brompton and Harefield Clinical Group, Guy's and St.Thomas' NHS Foundation Trust, UK
| | - Michael C Steiner
- Leicester NIHR Biomedical Research Centre - respiratory, Department of Respiratory Sciences, University of Leicester, UK
| | - Eef Vanderhelst
- University Hospital of Brussels, Vrije Universiteit Brussel, Belgium
| | | | | | - Wim Janssens
- Laboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases Metabolism and Ageing, KU LEUVEN, Leuven, Belgium
- Clinical department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
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7
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Verstraete K, Das N, Gyselinck I, Topalovic M, Troosters T, Crapo JD, Silverman EK, Make BJ, Regan EA, Jensen R, De Vos M, Janssens W. Principal component analysis of flow-volume curves in COPDGene to link spirometry with phenotypes of COPD. Respir Res 2023; 24:20. [PMID: 36658542 PMCID: PMC9854102 DOI: 10.1186/s12931-023-02318-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 01/06/2023] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Parameters from maximal expiratory flow-volume curves (MEFVC) have been linked to CT-based parameters of COPD. However, the association between MEFVC shape and phenotypes like emphysema, small airways disease (SAD) and bronchial wall thickening (BWT) has not been investigated. RESEARCH QUESTION We analyzed if the shape of MEFVC can be linked to CT-determined emphysema, SAD and BWT in a large cohort of COPDGene participants. STUDY DESIGN AND METHODS In the COPDGene cohort, we used principal component analysis (PCA) to extract patterns from MEFVC shape and performed multiple linear regression to assess the association of these patterns with CT parameters over the COPD spectrum, in mild and moderate-severe COPD. RESULTS Over the entire spectrum, in mild and moderate-severe COPD, principal components of MEFVC were important predictors for the continuous CT parameters. Their contribution to the prediction of emphysema diminished when classical pulmonary function test parameters were added. For SAD, the components remained very strong predictors. The adjusted R2 was higher in moderate-severe COPD, while in mild COPD, the adjusted R2 for all CT outcomes was low; 0.28 for emphysema, 0.21 for SAD and 0.19 for BWT. INTERPRETATION The shape of the maximal expiratory flow-volume curve as analyzed with PCA is not an appropriate screening tool for early disease phenotypes identified by CT scan. However, it contributes to assessing emphysema and SAD in moderate-severe COPD.
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Affiliation(s)
- Kenneth Verstraete
- grid.5596.f0000 0001 0668 7884Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism, KU Leuven, Herestraat 49, O&N 1Bis, Box 706, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium
| | - Nilakash Das
- grid.5596.f0000 0001 0668 7884Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism, KU Leuven, Herestraat 49, O&N 1Bis, Box 706, 3000 Leuven, Belgium
| | - Iwein Gyselinck
- grid.5596.f0000 0001 0668 7884Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism, KU Leuven, Herestraat 49, O&N 1Bis, Box 706, 3000 Leuven, Belgium
| | | | - Thierry Troosters
- grid.5596.f0000 0001 0668 7884Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - James D. Crapo
- grid.240341.00000 0004 0396 0728National Jewish Medical and Research Center, Denver, CO USA
| | - Edwin K. Silverman
- grid.38142.3c000000041936754XChanning Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA USA
| | - Barry J. Make
- grid.240341.00000 0004 0396 0728National Jewish Medical and Research Center, Denver, CO USA
| | - Elizabeth A. Regan
- grid.240341.00000 0004 0396 0728National Jewish Medical and Research Center, Denver, CO USA
| | - Robert Jensen
- grid.223827.e0000 0001 2193 0096University of Utah, Salt Lake City, Utah USA
| | - Maarten De Vos
- grid.5596.f0000 0001 0668 7884STADIUS Center for Dynamical Systems, Signal Processing and Data Analytics, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Wim Janssens
- grid.5596.f0000 0001 0668 7884Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism, KU Leuven, Herestraat 49, O&N 1Bis, Box 706, 3000 Leuven, Belgium
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8
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Engelen MM, Van Thillo Q, Betrains A, Gyselinck I, Martens CP, Spalart V, Ockerman A, Devooght C, Wauters J, Gunst J, Wouters C, Vandenbriele C, Rex S, Liesenborghs L, Wilmer A, Meersseman P, Van den Berghe G, Dauwe D, Belmans A, Thomeer M, Fivez T, Mesotten D, Ruttens D, Heytens L, Dapper I, Tuyls S, De Tavernier B, Verhamme P, Vanassche T. Modulation of thromboinflammation in hospitalized COVID-19 patients with aprotinin, low molecular weight heparin, and anakinra: The DAWn-Antico study. Res Pract Thromb Haemost 2022; 6:e12826. [PMID: 36324831 PMCID: PMC9618401 DOI: 10.1002/rth2.12826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/08/2022] Open
Abstract
Background Thromboinflammation plays a central role in severe COVID-19. The kallikrein pathway activates both inflammatory pathways and contact-mediated coagulation. We investigated if modulation of the thromboinflammatory response improves outcomes in hospitalized COVID-19 patients. Methods In this multicenter open-label randomized clinical trial (EudraCT 2020-001739-28), patients hospitalized with COVID-19 were 1:2 randomized to receive standard of care (SOC) or SOC plus study intervention. The intervention consisted of aprotinin (2,000,000 IE IV four times daily) combined with low molecular weight heparin (LMWH; SC 50 IU/kg twice daily on the ward, 75 IU/kg twice daily in intensive care). Additionally, patients with predefined hyperinflammation received the interleukin-1 receptor antagonist anakinra (100 mg IV four times daily). The primary outcome was time to a sustained 2-point improvement on the 7-point World Health Organization ordinal scale for clinical status, or discharge. Findings Between 24 June 2020 and 1 February 2021, 105 patients were randomized, and 102 patients were included in the full analysis set (intervention N = 67 vs. SOC N = 35). Twenty-five patients from the intervention group (37%) received anakinra. The intervention did not affect the primary outcome (HR 0.77 [CI 0.50-1.19], p = 0.24) or mortality (intervention n = 3 [4.6%] vs. SOC n = 2 [5.7%], HR 0.82 [CI 0.14-4.94], p = 0.83). There was one treatment-related adverse event in the intervention group (hematuria, 1.49%). There was one thrombotic event in the intervention group (1.49%) and one in the SOC group (2.86%), but no major bleeding. Conclusions In hospitalized COVID-19 patients, modulation of thromboinflammation with high-dose aprotinin and LMWH with or without anakinra did not improve outcome in patients with moderate to severe COVID-19.
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Affiliation(s)
- Matthias M. Engelen
- Department of Cardiovascular DiseasesUniversity Hospitals LeuvenLeuvenBelgium,Department of Cardiovascular Sciences, Center for Molecular and Vascular BiologyKU LeuvenLeuvenBelgium
| | | | - Albrecht Betrains
- Department of Microbiology, Immunology and Transplantation, Laboratory for Clinical Infectious and Inflammatory DisordersKU LeuvenLeuvenBelgium
| | - Iwein Gyselinck
- BREATHE Lab, Department CHROMETAKU LeuvenLeuvenBelgium,Department of Respiratory DiseasesUZ LeuvenLeuvenBelgium
| | - Caroline P. Martens
- Department of Cardiovascular Sciences, Center for Molecular and Vascular BiologyKU LeuvenLeuvenBelgium
| | - Valérie Spalart
- Department of Cardiovascular DiseasesUniversity Hospitals LeuvenLeuvenBelgium,Department of Cardiovascular Sciences, Center for Molecular and Vascular BiologyKU LeuvenLeuvenBelgium
| | - Anna Ockerman
- Department of Cardiovascular DiseasesUniversity Hospitals LeuvenLeuvenBelgium
| | - Caroline Devooght
- Department of Cardiovascular DiseasesUniversity Hospitals LeuvenLeuvenBelgium
| | - Joost Wauters
- Department of General Internal Medicine, Medical Intensive Care UnitUniversity Hospitals LeuvenLeuvenBelgium
| | - Jan Gunst
- Clinical Department and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
| | - Carine Wouters
- Pediatric RheumatologyUniversity Hospitals LeuvenLeuvenBelgium,Laboratory of Adaptive Immunology & Immunobiology, Department of Microbiology and ImmunologyKU LeuvenLeuvenBelgium
| | - Christophe Vandenbriele
- Department of Cardiovascular DiseasesUniversity Hospitals LeuvenLeuvenBelgium,Department of Cardiovascular Sciences, Center for Molecular and Vascular BiologyKU LeuvenLeuvenBelgium
| | - Steffen Rex
- Department of Cardiovascular SciencesUniversity Hospitals LeuvenLeuvenBelgium,Department of AnesthesiologyUniversity Hospitals LeuvenLeuvenBelgium
| | - Laurens Liesenborghs
- Department of Cardiovascular Sciences, Center for Molecular and Vascular BiologyKU LeuvenLeuvenBelgium
| | - Alexander Wilmer
- Department of General Internal Medicine, Medical Intensive Care UnitUniversity Hospitals LeuvenLeuvenBelgium
| | - Philippe Meersseman
- Department of General Internal Medicine, Medical Intensive Care UnitUniversity Hospitals LeuvenLeuvenBelgium
| | - Greet Van den Berghe
- Clinical Department and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
| | - Dieter Dauwe
- Clinical Department and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
| | - Ann Belmans
- Interuniversity Institute for Biostatistics and statistical Bioinformatics (I‐BioStat), KU LeuvenLeuvenBelgium
| | - Michiel Thomeer
- Department of Respiratory MedicineZiekenhuis Oost‐LimburgGenkBelgium,Department of Medicine and Life SciencesHasselt UniversityDiepenbeekBelgium
| | - Tom Fivez
- Department of Medicine and Life SciencesHasselt UniversityDiepenbeekBelgium,Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain TherapyZiekenhuis Oost‐LimburgGenkBelgium
| | - Dieter Mesotten
- Department of Medicine and Life SciencesHasselt UniversityDiepenbeekBelgium,Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain TherapyZiekenhuis Oost‐LimburgGenkBelgium
| | - David Ruttens
- Department of Respiratory MedicineZiekenhuis Oost‐LimburgGenkBelgium
| | - Luc Heytens
- Department of Intensive CareGZA Hospital GroupAntwerpBelgium
| | - Ilse Dapper
- Department of Intensive CareGZA Hospital GroupAntwerpBelgium
| | | | | | - Peter Verhamme
- Department of Cardiovascular DiseasesUniversity Hospitals LeuvenLeuvenBelgium,Department of Cardiovascular Sciences, Center for Molecular and Vascular BiologyKU LeuvenLeuvenBelgium
| | - Thomas Vanassche
- Department of Cardiovascular DiseasesUniversity Hospitals LeuvenLeuvenBelgium,Department of Cardiovascular Sciences, Center for Molecular and Vascular BiologyKU LeuvenLeuvenBelgium
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9
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Geudens V, Van Slambrouck J, Aerts G, Willems L, Goos T, Kaes J, Gyselinck I, Aelbrecht C, Vermaut A, Beeckmans H, Vermant M, De Fays C, Sacreas A, Aversa L, Orlitova M, Vanstapel A, E. Mcdonough J, Pilette C, Janssens W, A. Wuyts W, E. Van Raemdonck D, Vos R, Gayan-Ramirez G, J. Ceulemans L, M. Vanaudenaerde B. Lung volume and density assessment over time in hospitalized COVID-19 patients. IMAGING 2022. [DOI: 10.1183/23120541.lsc-2022.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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10
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Ramakrishnan S, Gyselinck I, Bafadhel M, Janssens W. Chronic Obstructive Pulmonary Disease Exacerbations: Do All Roads Lead to Rome? Am J Respir Crit Care Med 2022; 205:1125-1126. [PMID: 35196480 PMCID: PMC9851487 DOI: 10.1164/rccm.202112-2717le] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Sanjay Ramakrishnan
- University of OxfordOxford, United Kingdom,Edith Cowan UniversityPerth, Australia,Corresponding author (e-mail: )
| | - Iwein Gyselinck
- Universitair Ziekenhuis LeuvenLeuven, Belgium,Katholieke Universiteit LeuvenLeuven, Belgium
| | - Mona Bafadhel
- University of OxfordOxford, United Kingdom,King’s College LondonLondon, United Kingdom
| | - Wim Janssens
- Universitair Ziekenhuis LeuvenLeuven, Belgium,Katholieke Universiteit LeuvenLeuven, Belgium
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11
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Lorent N, Vande Weygaerde Y, Claeys E, Guler Caamano Fajardo I, De Vos N, De Wever W, Salhi B, Gyselinck I, Bosteels C, Lambrecht BN, Everaerts S, Verschraegen S, Schepers C, Demeyer H, Heyns A, Depuydt P, Oeyen S, Van Bleyenbergh P, Godinas L, Dupont L, Hermans G, Derom E, Gosselink R, Janssens W, Van Braeckel E. Prospective longitudinal evaluation of hospitalised COVID-19 survivors 3 and 12 months after discharge. ERJ Open Res 2022; 8:00004-2022. [PMID: 35415186 PMCID: PMC8994962 DOI: 10.1183/23120541.00004-2022] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/04/2022] [Indexed: 12/20/2022] Open
Abstract
Background Long-term outcome data of coronavirus disease 2019 (COVID-19) survivors are needed to understand their recovery trajectory and additional care needs. Methods A prospective observational multicentre cohort study was carried out of adults hospitalised with COVID-19 from March through May 2020. Workup at 3 and 12 months following admission consisted of clinical review, pulmonary function testing, 6-min walk distance (6MWD), muscle strength, chest computed tomography (CT) and quality of life questionnaires. We evaluated factors correlating with recovery by linear mixed effects modelling. Results Of 695 patients admitted, 299 and 226 returned at 3 and 12 months, respectively (median age 59 years, 69% male, 31% severe disease). About half and a third of the patients reported fatigue, dyspnoea and/or cognitive impairment at 3 and 12 months, respectively. Reduced 6MWD and quadriceps strength were present in 20% and 60% at 3 months versus 7% and 30% at 12 months. A high anxiety score and body mass index correlated with poor functional recovery. At 3 months, diffusing capacity for carbon monoxide (DLCO) and total lung capacity were below the lower limit of normal in 35% and 18%, decreasing to 21% and 16% at 12 months; predictors of poor DLCO recovery were female sex, pre-existing lung disease, smoking and disease severity. Chest CT improved over time; 10% presented non-progressive fibrotic changes at 1 year. Conclusion Many COVID-19 survivors, especially those with severe disease, experienced limitations at 3 months. At 1 year, the majority showed improvement to almost complete recovery. To identify additional care or rehabilitation needs, we recommend a timely multidisciplinary follow-up visit following COVID-19 admission. Most hospitalised #COVID19 survivors show promising recovery 1 year after discharge, although mild symptoms may linger. Severe impairments are rare, but this study suggests an evaluation of the individual care needs after discharge.https://bit.ly/3sZK45x
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12
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Gyselinck I, Liesenborghs L, Belmans A, Engelen MM, Betrains A, Van Thillo Q, Nguyen PAH, Goeminne P, Soenen AC, De Maeyer N, Pilette C, Papleux E, Vanderhelst E, Derweduwen A, Alexander P, Bouckaert B, Martinot JB, Decoster L, Vandeurzen K, Schildermans R, Verhamme P, Janssens W, Vos R. Azithromycin for Treatment of Hospitalised COVID-19 Patients: a randomised, multicentre, open-label clinical trial (DAWn-AZITHRO). ERJ Open Res 2022; 8:00610-2021. [PMID: 35233389 PMCID: PMC8801156 DOI: 10.1183/23120541.00610-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/28/2021] [Indexed: 12/23/2022] Open
Abstract
Background and objectives Azithromycin was rapidly adopted as a repurposed drug to treat coronavirus disease 2019 (COVID-19) early in the pandemic. We aimed to evaluate its efficacy in patients hospitalised for COVID-19. Methods In a series of randomised, open-label, phase 2 proof-of-concept, multicentre clinical trials (Direct Antivirals Working against the novel coronavirus (DAWn)), several treatments were compared with standard of care. In 15 Belgian hospitals, patients hospitalised with moderate to severe COVID-19 were allocated 2:1 to receive standard of care plus azithromycin or standard of care alone. The primary outcome was time to live discharge or sustained clinical improvement, defined as a two-point improvement on the World Health Organization (WHO) ordinal scale sustained for at least 3 days. Results Patients were included between April 22 and December 17, 2020. When 15-day follow-up data were available for 160 patients (56% of preset cohort), an interim analysis was performed at request of the independent Data Safety and Monitoring Board. Subsequently, DAWn-AZITHRO was stopped for futility. In total, 121 patients were allocated to the treatment arm and 64 patients to the standard-of-care arm. We found no effect of azithromycin on the primary outcome with a hazard ratio of 1.044 (95% CI 0.772–1.413; p=0.7798). None of the predefined subgroups showed significant interaction as covariates in the Fine–Gray regression analysis. No benefit of azithromycin was found on any of the short- and longer-term secondary outcomes. Conclusion Time to clinical improvement is not influenced by azithromycin in patients hospitalised with moderate to severe COVID-19. Previous randomised controlled studies with azithromycin in hospitalised COVID-19 patients assessed end-points at fixed timepoints. Complementary to this, DAWn-AZITHRO assessed time to sustained improvement. No benefit of azithromycin was shown.https://bit.ly/3FapyC7
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13
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Affiliation(s)
- Iwein Gyselinck
- Respiratory Diseases, University Hospitals Leuven, BREATHE Research Group, Department CHROMETA, KU Leuven, 3000 Leuven, Belgium.
| | - Wim Janssens
- Respiratory Diseases, University Hospitals Leuven, BREATHE Research Group, Department CHROMETA, KU Leuven, 3000 Leuven, Belgium
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14
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Devos T, Van Thillo Q, Compernolle V, Najdovski T, Romano M, Dauby N, Jadot L, Leys M, Maillart E, Loof S, Seyler L, Moonen M, Moutschen M, Van Regenmortel N, Ariën KK, Barbezange C, Betrains A, Garigliany M, Engelen MM, Gyselinck I, Maes P, Schauwvlieghe A, Liesenborghs L, Belmans A, Verhamme P, Meyfroidt G. Early high antibody-titre convalescent plasma for hospitalised COVID-19 patients: DAWn-plasma. Eur Respir J 2021; 59:13993003.01724-2021. [PMID: 34446469 PMCID: PMC8576805 DOI: 10.1183/13993003.01724-2021] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/24/2021] [Indexed: 12/15/2022]
Abstract
Background Several randomised clinical trials have studied convalescent plasma for coronavirus disease 2019 (COVID-19) using different protocols, with different severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) neutralising antibody titres, at different time-points and severities of illness. Methods In the prospective multicentre DAWn-plasma trial, adult patients hospitalised with COVID-19 were randomised to 4 units of open-label convalescent plasma combined with standard of care (intervention group) or standard of care alone (control group). Plasma from donors with neutralising antibody titres (50% neutralisation titre (NT50)) ≥1/320 was the product of choice for the study. Results Between 2 May 2020 and 26 January 2021, 320 patients were randomised to convalescent plasma and 163 patients to the control group according to a 2:1 allocation scheme. A median (interquartile range) volume of 884 (806–906) mL) convalescent plasma was administered and 80.68% of the units came from donors with neutralising antibody titres (NT50) ≥1/320. Median time from onset of symptoms to randomisation was 7 days. The proportion of patients alive and free of mechanical ventilation on day 15 was not different between both groups (convalescent plasma 83.74% (n=267) versus control 84.05% (n=137)) (OR 0.99, 95% CI 0.59–1.66; p=0.9772). The intervention did not change the natural course of antibody titres. The number of serious or severe adverse events was similar in both study arms and transfusion-related side-effects were reported in 19 out of 320 patients in the intervention group (5.94%). Conclusions Transfusion of 4 units of convalescent plasma with high neutralising antibody titres early in hospitalised COVID-19 patients did not result in a significant improvement of clinical status or reduced mortality. Early transfusion of 4 units of high neutralising antibody titre convalescent plasma in hospitalised COVID-19 patients does not reduce mortality or the need for mechanical ventilationhttps://bit.ly/3fiRY2I
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Affiliation(s)
- Timothy Devos
- Department of Hematology, University Hospitals Leuven and Department of Microbiology and Immunology, Laboratory of Molecular Immunology (Rega Institute), KU Leuven, Leuven, Belgium
| | - Quentin Van Thillo
- Center for Cancer Biology, Vlaams Instituut voor Biotechnologie (VIB), Leuven and Center for Human Genetics, KU Leuven, Leuven, Belgium
| | - Veerle Compernolle
- Belgian Red Cross, Blood Services, Mechelen, Belgium. Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | | | - Marta Romano
- Immune Response Service; Infectious Diseases in Humans Scientific Directorate, Sciensano, Brussels, Belgium
| | - Nicolas Dauby
- Department of Infectious Diseases, CHU Saint-Pierre, Universite Libre de Bruxelles (ULB), School of Public Health, Universite Libre de Bruxelles (ULB), Institute for Medical Immunology, Universite Libre de Bruxelles (ULB), Belgium
| | - Laurent Jadot
- Department of Anesthesiology and Intensive Care Medicine, and Department of Infectious diseases, CHC Mont Legia, Liege, Belgium
| | - Mathias Leys
- Department of Pulmonary Medicine, AZ Groeninge, Kortrijk, Belgium
| | - Evelyne Maillart
- Department of Infectious Diseases, Brugmann University Hospital, Brussels, Belgium
| | - Sarah Loof
- Department of Respiratory Medicine, AZ Maria Middelares Gent, Ghent, Belgium. Department of Respiratory Medicine, AZ Sint-Vincentius Deinze, Deinze, Belgium
| | - Lucie Seyler
- Department of Infectious Diseases and Internal Medicine, UZ Brussel Hospital, Brussels, Belgium
| | - Martial Moonen
- Department of Internal Medicine and Infectious Diseases, Centre Hospitalier Regional (CHR), Liege, Belgium
| | - Michel Moutschen
- Infectious Diseases and General Internal Medicine, CHU de Liege, ULiege, Belgium
| | - Niels Van Regenmortel
- Department of Intensive Care Medicine, Ziekenhuis Netwerk Antwerpen Campus Stuivenberg, Antwerp, Belgium
| | - Kevin K Ariën
- Virology Unit, Institute of Tropical Medicine Antwerp, Antwerp and Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | | | - Albrecht Betrains
- Department of General Internal Medicine, University Hospitals Leuven, Leuven and Department of Microbiology, Immunology, and Transplantation, KU Leuven, Leuven, Belgium
| | - Mutien Garigliany
- University of Liege, Faculty of Veterinary Medicine, Animal Pathology, Liege, Belgium
| | | | - Iwein Gyselinck
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department CHROMETA, KU Leuven, Respiratory Diseases UZ Leuven, Leuven, Belgium
| | - Piet Maes
- KU Leuven, Rega Institute for Medical Research, Clinical and Epidemiological Virology, Leuven, Belgium
| | | | - Laurens Liesenborghs
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Ann Belmans
- I-BioStat, KU Leuven, Leuven, Belgium and University Hasselt, Hasselt, Belgium
| | - Peter Verhamme
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Geert Meyfroidt
- Department of Intensive Care Medicine, University Hospitals Leuven, and Department of Cellular and Molecular Medicine, Laboratory of Intensive Care Medicine, KU Leuven, Leuven, Belgium
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Liesenborghs L, Spriet I, Jochmans D, Belmans A, Gyselinck I, Teuwen LA, ter Horst S, Dreesen E, Geukens T, Engelen MM, Landeloos E, Geldhof V, Ceunen H, Debaveye B, Vandenberk B, Van der Linden L, Jacobs S, Langendries L, Boudewijns R, Dan Do TN, Chiu W, Wang X, Zhang X, Weynand B, Vanassche T, Devos T, Meyfroidt G, Janssens W, Vos R, Vermeersch P, Wauters J, Verbeke G, De Munter P, Kaptein SJ, Rocha-Pereira J, Delang L, Van Wijngaerden E, Neyts J, Verhamme P. Corrigendum to "itraconazole for COVID-19: Preclinical studies and a proof-of-concept randomized clinical trial Laurens". EBioMedicine 2021; 69:103454. [PMID: 34186486 PMCID: PMC8233477 DOI: 10.1016/j.ebiom.2021.103454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Laurens Liesenborghs
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
- The Outbreak Research Team, Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Corresponding author at: Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium.
| | - Isabel Spriet
- Pharmacy Department University Hospitals Leuven and Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Dirk Jochmans
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Ann Belmans
- KU Leuven University of Leuven & Universiteit Hasselt, I-BioStat, Leuven, Belgium
| | - Iwein Gyselinck
- Department of Respiratory Diseases, UZ Leuven and CHROMETA, Research group BREATHE, KU Leuven, Leuven, Belgium
| | - Laure-Anne Teuwen
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Sebastiaan ter Horst
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Erwin Dreesen
- Clinical Pharmacology and Pharmacotherapy Unit, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Tatjana Geukens
- Department of Oncology, Laboratory for Translational Breast Cancer Research, KU Leuven, Belgium
| | | | - Ewout Landeloos
- Department of Oncology, Laboratory for molecular Cancer biology, VIB-KU Leuven, Belgium
| | - Vincent Geldhof
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Helga Ceunen
- Department of General Internal Medicine, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
| | - Barbara Debaveye
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Bert Vandenberk
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Lorenz Van der Linden
- Pharmacy Department University Hospitals Leuven and Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Sofie Jacobs
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Lana Langendries
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Robbert Boudewijns
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Thuc Nguyen Dan Do
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Winston Chiu
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Xinyu Wang
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Xin Zhang
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Birgit Weynand
- Translational Cell and Tissue Research, Department of Imaging and Pathology, KU Leuven, Belgium
| | - Thomas Vanassche
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Timothy Devos
- Department of Hematology, UZ Leuven and Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology (Rega Institute), KU Leuven, Belgium
| | - Geert Meyfroidt
- Department and Laboratory of Intensive Care Medicine, UZ and KU Leuven, Belgium
| | - Wim Janssens
- Department of Respiratory Diseases, UZ Leuven and CHROMETA, Research group BREATHE, KU Leuven, Leuven, Belgium
| | - Robin Vos
- Department of Respiratory Diseases, UZ Leuven and CHROMETA, Research group BREATHE, KU Leuven, Leuven, Belgium
| | - Pieter Vermeersch
- Department of Cardiovascular Sciences and Clinical Department of Laboratory Medicine, KU Leuven, Belgium
| | - Joost Wauters
- Medical Intensive Care Unit, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
| | - Geert Verbeke
- KU Leuven University of Leuven & Universiteit Hasselt, I-BioStat, Leuven, Belgium
| | - Paul De Munter
- Department of General Internal Medicine, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
| | - Suzanne J.F. Kaptein
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Joana Rocha-Pereira
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Leen Delang
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Eric Van Wijngaerden
- Department of General Internal Medicine, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
- Corresponding author at: Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium.
| | - Johan Neyts
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Peter Verhamme
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
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Vanstapel A, Weynand B, De Zutter A, Dubbeldam A, De Sadeleer L, Kaes J, Verbeken E, Ceulemans L, Geudens V, Goos T, Gyselinck I, Van Raemdonck D, Neyrinck A, Dupont L, Boon M, Boone M, Vanaudenaerde B, Vos R, Verleden G, Verleden S. Phenotypical Characterization of Airway Morphology in Post-Infectious vs Post-Lung Transplantation Bronchiolitis Obliterans. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Liesenborghs L, Spriet I, Jochmans D, Belmans A, Gyselinck I, Teuwen LA, ter Horst S, Dreesen E, Geukens T, Engelen MM, Landeloos E, Geldhof V, Ceunen H, Debaveye B, Vandenberk B, Van der Linden L, Jacobs S, Langendries L, Boudewijns R, Do TND, Chiu W, Wang X, Zhang X, Weynand B, Vanassche T, Devos T, Meyfroidt G, Janssens W, Vos R, Vermeersch P, Wauters J, Verbeke G, De Munter P, Kaptein SJ, Rocha-Pereira J, Delang L, Van Wijngaerden E, Neyts J, Verhamme P. Itraconazole for COVID-19: preclinical studies and a proof-of-concept randomized clinical trial. EBioMedicine 2021; 66:103288. [PMID: 33752127 PMCID: PMC7979145 DOI: 10.1016/j.ebiom.2021.103288] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The antifungal drug itraconazole exerts in vitro activity against SARS-CoV-2 in Vero and human Caco-2 cells. Preclinical and clinical studies are required to investigate if itraconazole is effective for the treatment and/or prevention of COVID-19. METHODS Due to the initial absence of preclinical models, the effect of itraconazole was explored in a clinical, proof-of-concept, open-label, single-center study, in which hospitalized COVID-19 patients were randomly assigned to standard of care with or without itraconazole. Primary outcome was the cumulative score of the clinical status until day 15 based on the 7-point ordinal scale of the World Health Organization. In parallel, itraconazole was evaluated in a newly established hamster model of acute SARS-CoV-2 infection and transmission, as soon as the model was validated. FINDINGS In the hamster acute infection model, itraconazole did not reduce viral load in lungs, stools or ileum, despite adequate plasma and lung drug concentrations. In the transmission model, itraconazole failed to prevent viral transmission. The clinical trial was prematurely discontinued after evaluation of the preclinical studies and because an interim analysis showed no signal for a more favorable outcome with itraconazole: mean cumulative score of the clinical status 49 vs 47, ratio of geometric means 1.01 (95% CI 0.85 to 1.19) for itraconazole vs standard of care. INTERPRETATION Despite in vitro activity, itraconazole was not effective in a preclinical COVID-19 hamster model. This prompted the premature termination of the proof-of-concept clinical study. FUNDING KU Leuven, Research Foundation - Flanders (FWO), Horizon 2020, Bill and Melinda Gates Foundation.
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Affiliation(s)
- Laurens Liesenborghs
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
- The Outbreak Research Team, Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Isabel Spriet
- Pharmacy Department University Hospitals Leuven and Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Dirk Jochmans
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Ann Belmans
- KU Leuven – University of Leuven & Universiteit Hasselt, I-BioStat, Leuven, Belgium
| | - Iwein Gyselinck
- Department of Respiratory Diseases, UZ Leuven and CHROMETA, Research group BREATHE, KU Leuven, Leuven, Belgium
| | - Laure-Anne Teuwen
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Sebastiaan ter Horst
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Erwin Dreesen
- Clinical Pharmacology and Pharmacotherapy Unit, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Tatjana Geukens
- Department of Oncology, Laboratory for Translational Breast Cancer Research, KU Leuven, Belgium
| | | | - Ewout Landeloos
- Department of Oncology, Laboratory for molecular Cancer biology, VIB-KU Leuven, Belgium
| | - Vincent Geldhof
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Helga Ceunen
- Department of General Internal Medicine, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
| | - Barbara Debaveye
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Bert Vandenberk
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Lorenz Van der Linden
- Pharmacy Department University Hospitals Leuven and Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Sofie Jacobs
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Lana Langendries
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Robbert Boudewijns
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Thuc Nguyen Dan Do
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Winston Chiu
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Xinyu Wang
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Xin Zhang
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Birgit Weynand
- Translational Cell and Tissue Research, Department of Imaging and Pathology, KU Leuven, Belgium
| | - Thomas Vanassche
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Timothy Devos
- Department of Hematology, UZ Leuven and Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology (Rega Institute), KU Leuven, Belgium
| | - Geert Meyfroidt
- Department and Laboratory of Intensive Care Medicine, UZ and KU Leuven, Belgium
| | - Wim Janssens
- Department of Respiratory Diseases, UZ Leuven and CHROMETA, Research group BREATHE, KU Leuven, Leuven, Belgium
| | - Robin Vos
- Department of Respiratory Diseases, UZ Leuven and CHROMETA, Research group BREATHE, KU Leuven, Leuven, Belgium
| | - Pieter Vermeersch
- Department of Cardiovascular Sciences and Clinical Department of Laboratory Medicine, KU Leuven, Belgium
| | - Joost Wauters
- Medical Intensive Care Unit, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
| | - Geert Verbeke
- KU Leuven – University of Leuven & Universiteit Hasselt, I-BioStat, Leuven, Belgium
| | - Paul De Munter
- Department of General Internal Medicine, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
| | - Suzanne J.F. Kaptein
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Joana Rocha-Pereira
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Leen Delang
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Eric Van Wijngaerden
- Department of General Internal Medicine, UZ Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Belgium
| | - Johan Neyts
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Peter Verhamme
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
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Gyselinck I, Liesenborghs L, Landeloos E, Belmans A, Verbeke G, Verhamme P, Vos R, Janssens W. Correction to: Direct antivirals working against the novel coronavirus: azithromycin (DAWn-AZITHRO), a randomized, multicenter, open-label, adaptive, proof-of-concept clinical trial of new antivirals working against SARS-CoV-2-azithromycin trial. Trials 2021; 22:187. [PMID: 33673831 PMCID: PMC7933907 DOI: 10.1186/s13063-021-05153-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Iwein Gyselinck
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium.
| | - Laurens Liesenborghs
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - Ewout Landeloos
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - Ann Belmans
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Leuven, Belgium
| | - Geert Verbeke
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Leuven, Belgium
| | - Peter Verhamme
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - Robin Vos
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - W Janssens
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
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Ramakrishnan S, Janssens W, Burgel PR, Contoli M, Franssen FME, Greening NJ, Greulich T, Gyselinck I, Halner A, Huerta A, Morgan RL, Quint JK, Vanfleteren LEGW, Vermeersch K, Watz H, Bafadhel M. Standardisation of Clinical Assessment, Management and Follow-Up of Acute Hospitalised Exacerbation of COPD: A Europe-Wide Consensus. Int J Chron Obstruct Pulmon Dis 2021; 16:321-332. [PMID: 33623379 PMCID: PMC7896731 DOI: 10.2147/copd.s287705] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/11/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Despite hospitalization for exacerbation being a high-risk event for morbidity and mortality, there is little consensus globally regarding the assessment and management of hospitalised exacerbations of COPD. We aimed to establish a consensus list of symptoms, physiological measures, clinical scores, patient questionnaires and investigations to be obtained at time of hospitalised COPD exacerbation and follow-up. METHODS A modified Delphi online survey with pre-defined consensus of importance, feasibility and frequency of measures at hospitalisation and follow-up of a COPD exacerbation was undertaken. FINDINGS A total of 25 COPD experts from 18 countries contributed to all 3 rounds of the survey. Experts agreed that a detailed history and examination were needed. Experts also agreed on which treatments are needed and how soon these should be delivered. Experts recommended that a full blood count, renal function, C-reactive protein and cardiac blood biomarkers (BNP and troponin) should be measured within 4 hours of admission and that the modified Medical Research Council dyspnoea scale (mMRC) and COPD assessment test (CAT) should be performed at time of exacerbation and follow-up. Experts encouraged COPD clinicians to strongly consider discussing palliative care, if indicated, at time of hospitalisation. INTERPRETATION This Europe-wide consensus document is the first attempt to standardise the assessment and care of patients hospitalised for COPD exacerbations. This should be regarded as the starting point to build knowledge and evidence on patients hospitalised for COPD exacerbations.
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Affiliation(s)
- Sanjay Ramakrishnan
- Respiratory Medicine Unit, Nuffield Department of Medicine - Experimental Medicine, University of Oxford, Oxford, UK
- National Institute for Health Research (NIHR) Oxford Biomedical Research Centre (BRC), University of Oxford, Oxford, UK
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Wim Janssens
- Department of Respiratory Diseases, UZ Leuven, Research Group BREATHE, KU Leuven, Leuven, Belgium
| | - Pierre-Regis Burgel
- Faculty of Medicine, University of Paris and INSERM 1016 Institut Cochin, Cochin Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Marco Contoli
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Frits M E Franssen
- Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, Netherlands
| | - Neil J Greening
- Department of Respiratory Sciences, NIHR Leicester Biomedical Research Centre (Respiratory), Glenfield Hospital, Leicester, UK
| | - Timm Greulich
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Centre Giessen and Marburg, Philipps University, Member of the German Centre for Lung Research (DZL), Marburg, Germany
| | - Iwein Gyselinck
- Department of Respiratory Diseases, UZ Leuven, Research Group BREATHE, KU Leuven, Leuven, Belgium
| | - Andreas Halner
- Respiratory Medicine Unit, Nuffield Department of Medicine - Experimental Medicine, University of Oxford, Oxford, UK
| | - Arturo Huerta
- Pulmonary and Critical Care Division, Clinica Sagrada Familia, IDIBAPS August Pi i Sunyer Biomedical Research Institute, Barcelona, Spain
| | - Rebecca L Morgan
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Canada
| | | | - Lowie E G W Vanfleteren
- COPD Center, Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, Department of Internal Medicine and Clinical Nutrition at Institute of Medicine, SU Sahlgrenska, Göteborg, Sweden
| | - Kristina Vermeersch
- Department of Respiratory Diseases, UZ Leuven, Research Group BREATHE, KU Leuven, Leuven, Belgium
| | - Henrik Watz
- Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Mona Bafadhel
- Respiratory Medicine Unit, Nuffield Department of Medicine - Experimental Medicine, University of Oxford, Oxford, UK
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Gyselinck I, Liesenborghs L, Landeloos E, Belmans A, Verbeke G, Verhamme P, Vos R, Janssens W. Direct antivirals working against the novel coronavirus: azithromycin (DAWn-AZITHRO), a randomized, multicenter, open-label, adaptive, proof-of-concept clinical trial of new antivirals working against SARS-CoV-2-azithromycin trial. Trials 2021; 22:126. [PMID: 33563325 PMCID: PMC7871018 DOI: 10.1186/s13063-021-05033-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/08/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The rapid emergence and the high disease burden of the novel coronavirus SARS-CoV-2 have created a medical need for readily available drugs that can decrease viral replication or blunt the hyperinflammatory state leading to severe COVID-19 disease. Azithromycin is a macrolide antibiotic, known for its immunomodulatory properties. It has shown antiviral effect specifically against SARS-CoV-2 in vitro and acts on cytokine signaling pathways that have been implicated in COVID-19. METHODS DAWn-AZITHRO is a randomized, open-label, phase 2 proof-of-concept, multicenter clinical trial, evaluating the safety and efficacy of azithromycin for treating hospitalized patients with COVID-19. It is part of a series of trials testing promising interventions for COVID-19, running in parallel and grouped under the name DAWn-studies. Patients hospitalized on dedicated COVID wards are eligible for study inclusion when they are symptomatic (i.e., clinical or radiological signs) and have been diagnosed with COVID-19 within the last 72 h through PCR (nasopharyngeal swab or bronchoalveolar lavage) or chest CT scan showing typical features of COVID-19 and without alternate diagnosis. Patients are block-randomized (9 patients) with a 2:1 allocation to receive azithromycin plus standard of care versus standard of care alone. Standard of care is mostly supportive, but may comprise hydroxychloroquine, up to the treating physician's discretion and depending on local policy and national health regulations. The treatment group receives azithromycin qd 500 mg during the first 5 consecutive days after inclusion. The trial will include 284 patients and recruits from 15 centers across Belgium. The primary outcome is time from admission (day 0) to life discharge or to sustained clinical improvement, defined as an improvement of two points on the WHO 7-category ordinal scale sustained for at least 3 days. DISCUSSION The trial investigates the urgent and still unmet global need for drugs that may impact the disease course of COVID-19. It will either provide support or else justify the discouragement of the current widespread, uncontrolled use of azithromycin in patients with COVID-19. The analogous design of other parallel trials of the DAWN consortium will amplify the chance of identifying successful treatment strategies and allow comparison of treatment effects within an identical clinical context. TRIAL REGISTRATION EU Clinical trials register EudraCT Nb 2020-001614-38 . Registered on 22 April 2020.
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Affiliation(s)
- Iwein Gyselinck
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium.
| | - Laurens Liesenborghs
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - Ewout Landeloos
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - Ann Belmans
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Leuven, Belgium
| | - Geert Verbeke
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Leuven, Belgium
| | - Peter Verhamme
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - Robin Vos
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - W Janssens
- Katholieke Universiteit Leuven Universitaire Ziekenhuizen Leuven, Leuven, Belgium
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21
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Verleden SE, Vanstapel A, De Sadeleer L, Dubbeldam A, Goos T, Gyselinck I, Geudens V, Kaes J, Van Raemdonck DE, Ceulemans LJ, Yserbyt J, Vos R, Vanaudenaerde B, Weynand B, Verschakelen J, Wuyts WA. Distinct Airway Involvement in Subtypes of End-Stage Fibrotic Pulmonary Sarcoidosis. Chest 2021; 160:562-571. [PMID: 33440183 DOI: 10.1016/j.chest.2021.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/17/2020] [Accepted: 01/04/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Sarcoidosis is a systemic granulomatous disease that in most patients affects the lung. Pulmonary fibrotic sarcoidosis is clinically, radiologically, and pathologically a heterogeneous condition. Although substantial indirect evidence suggests small airways involvement, direct evidence currently is lacking. RESEARCH QUESTION What is the role of the (small) airways in fibrotic sarcoidosis? STUDY DESIGN AND METHODS Airway morphologic features were investigated in seven explant lungs with end-stage fibrotic sarcoidosis using a combination of CT scanning (large airways), micro-CT scanning (small airways), and histologic examination and compared with seven unused donor lungs as controls with specific attention focused on different radiologically defined sarcoidosis subtypes. RESULTS Patients with central bronchial distortion (n = 3), diffuse bronchiectasis (n = 3), and usual interstitial pneumonia pattern (n = 1) were identified based on CT scan, showing a decrease and narrowing of large airways, a similar airway number and increased airway diameter of more distal airways, or an increase in airway number and airway diameter, respectively, compared with control participants. The number of terminal bronchioles per milliliter and the total number of terminal bronchioles were decreased in all forms of fibrotic sarcoidosis. Interestingly, the number of terminal bronchioles was inversely correlated with the degree of fibrosis. Furthermore, we identified granulomatous remodeling as a cause of small airways loss using serial micro-CT scanning and histologic examination. INTERPRETATION The large airways are involved differentially in subtypes of sarcoidosis, but the terminal bronchioles universally are lost. This suggests that small airways loss forms an important aspect in the pathophysiologic features of fibrotic pulmonary sarcoidosis.
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Affiliation(s)
- Stijn E Verleden
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium.
| | - Arno Vanstapel
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Laurens De Sadeleer
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | | | - Tinne Goos
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Iwein Gyselinck
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Vincent Geudens
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Janne Kaes
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Dirk E Van Raemdonck
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Thoracic Surgery, UH Leuven, Leuven, Belgium
| | - Laurens J Ceulemans
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Thoracic Surgery, UH Leuven, Leuven, Belgium
| | - Jonas Yserbyt
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Robin Vos
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Bart Vanaudenaerde
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | | | | | - Wim A Wuyts
- BREATHE, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
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22
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Gyselinck I, Janssens W, Verhamme P, Vos R. Rationale for azithromycin in COVID-19: an overview of existing evidence. BMJ Open Respir Res 2021; 8:e000806. [PMID: 33441373 PMCID: PMC7811960 DOI: 10.1136/bmjresp-2020-000806] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 02/07/2023] Open
Abstract
Azithromycin has rapidly been adopted as a repurposed drug for the treatment of COVID-19, despite the lack of high-quality evidence. In this review, we critically appraise the current pharmacological, preclinical and clinical data of azithromycin for treating COVID-19. Interest in azithromycin has been fuelled by favourable treatment outcomes in other viral pneumonias, a documented antiviral effect on SARS-CoV-2 in vitro and uncontrolled case series early in the pandemic. Its antiviral effects presumably result from interfering with receptor mediated binding, viral lysosomal escape, intracellular cell-signalling pathways and enhancing type I and III interferon expression. Its immunomodulatory effects may mitigate excessive inflammation and benefit tissue repair. Currently, in vivo reports on azithromycin in COVID-19 are conflicting and do not endorse its widespread use outside of clinical trials. They are, however, mostly retrospective and therefore inherently biased. The effect size of azithromycin may depend on when it is started. Also, extended follow-up is needed to assess benefits in the recovery phase. Safety data warrant monitoring of drug-drug interactions and subsequent cardiac adverse events, especially with hydroxychloroquine. More prospective data of large randomised controlled studies are expected and much-needed. Uniform reporting of results should be strongly encouraged to facilitate data pooling with the many ongoing initiatives.
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Affiliation(s)
- Iwein Gyselinck
- Respiratory Diseases, KU Leuven University Hospitals, Leuven, Flanders, Belgium
- Department CHROMETA - Research group BREATHE, KU Leuven, Leuven, Flanders, Belgium
| | - Wim Janssens
- Respiratory Diseases, KU Leuven University Hospitals, Leuven, Flanders, Belgium
- Department CHROMETA - Research group BREATHE, KU Leuven, Leuven, Flanders, Belgium
| | - Peter Verhamme
- Cardiovascular Diseases, KU Leuven University Hospitals, Leuven, Flanders, Belgium
- Centre for Molecular and Vascular Biology, KU Leuven, Leuven, Flanders, Belgium
| | - Robin Vos
- Respiratory Diseases, KU Leuven University Hospitals, Leuven, Flanders, Belgium
- Department CHROMETA - Research group BREATHE, KU Leuven, Leuven, Flanders, Belgium
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23
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Vermeersch K, Belmans A, Bogaerts K, Gyselinck I, Cardinaels N, Gabrovska M, Aumann J, Demedts IK, Corhay JL, Marchand E, Slabbynck H, Haenebalcke C, Vermeersch S, Verleden GM, Troosters T, Ninane V, Brusselle GG, Janssens W. Treatment failure and hospital readmissions in severe COPD exacerbations treated with azithromycin versus placebo - a post-hoc analysis of the BACE randomized controlled trial. Respir Res 2019; 20:237. [PMID: 31665017 PMCID: PMC6819655 DOI: 10.1186/s12931-019-1208-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 10/09/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND In the BACE trial, a 3-month (3 m) intervention with azithromycin, initiated at the onset of an infectious COPD exacerbation requiring hospitalization, decreased the rate of a first treatment failure (TF); the composite of treatment intensification (TI), step-up in hospital care (SH) and mortality. OBJECTIVES (1) To investigate the intervention's effect on recurrent events, and (2) to identify clinical subgroups most likely to benefit, determined from the incidence rate of TF and hospital readmissions. METHODS Enrolment criteria included the diagnosis of COPD, a smoking history of ≥10 pack-years and ≥ 1 exacerbation in the previous year. Rate ratio (RR) calculations, subgroup analyses and modelling of continuous variables using splines were based on a Poisson regression model, adjusted for exposure time. RESULTS Azithromycin significantly reduced TF by 24% within 3 m (RR = 0.76, 95%CI:0.59;0.97, p = 0.031) through a 50% reduction in SH (RR = 0.50, 95%CI:0.30;0.81, p = 0.006), which comprised of a 53% reduction in hospital readmissions (RR = 0.47, 95%CI:0.27;0.80; p = 0.007). A significant interaction between the intervention, CRP and blood eosinophil count at hospital admission was found, with azithromycin significantly reducing hospital readmissions in patients with high CRP (> 50 mg/L, RR = 0.18, 95%CI:0.05;0.60, p = 0.005), or low blood eosinophil count (<300cells/μL, RR = 0.33, 95%CI:0.17;0.64, p = 0.001). No differences were observed in treatment response by age, FEV1, CRP or blood eosinophil count in continuous analyses. CONCLUSIONS This post-hoc analysis of the BACE trial shows that azithromycin initiated at the onset of an infectious COPD exacerbation requiring hospitalization reduces the incidence rate of TF within 3 m by preventing hospital readmissions. In patients with high CRP or low blood eosinophil count at admission this treatment effect was more pronounced, suggesting a potential role for these biomarkers in guiding azithromycin therapy. TRIAL REGISTRATION ClinicalTrials.gov number. NCT02135354 .
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Affiliation(s)
- Kristina Vermeersch
- Laboratory of Respiratory Diseases, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Herestraat 49, O&NI, box 706, B-3000, Leuven, Belgium
- Department of Respiratory Diseases, University Hospitals Leuven, B-3000, Leuven, Belgium
| | - Ann Belmans
- I-BioStat, KU Leuven, B-3000, Leuven, Belgium
- Universiteit Hasselt, B-3500, Hasselt, Belgium
| | - Kris Bogaerts
- I-BioStat, KU Leuven, B-3000, Leuven, Belgium
- Universiteit Hasselt, B-3500, Hasselt, Belgium
| | - Iwein Gyselinck
- Laboratory of Respiratory Diseases, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Herestraat 49, O&NI, box 706, B-3000, Leuven, Belgium
| | - Nina Cardinaels
- Laboratory of Respiratory Diseases, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Herestraat 49, O&NI, box 706, B-3000, Leuven, Belgium
| | - Maria Gabrovska
- Department of Pneumology, Centre Hospitalier Universitaire Saint-Pierre, Université Libre de Bruxelles, B-1000, Brussels, Belgium
| | - Joseph Aumann
- Department of Pneumology, Jessa Ziekenhuis, B-3500, Hasselt, Belgium
| | - Ingel K Demedts
- Department of Respiratory Medicine, AZ Delta Roeselare-Menen, B-8800, Roeselare, Belgium
| | - Jean-Louis Corhay
- Department of Pneumology, Centre Hospitalier Universitaire, site Sart-Tilman, B-4000, Liège, Belgium
| | - Eric Marchand
- Department of Pneumology, CHU-UCL-Namur, site Mont-Godinne, B-5530, Yvoir, Belgium
- Faculty of Medicine, NARILIS, Laboratory of Respiratory Physiology, University of Namur, B-5000, Namur, Belgium
| | - Hans Slabbynck
- Department of Respiratory Medicine, ZNA Middelheim, B-2020, Antwerpen, Belgium
| | | | - Stefanie Vermeersch
- Department of Respiratory Medicine, Ghent University Hospital, B-9000, Ghent, Belgium
| | - Geert M Verleden
- Laboratory of Respiratory Diseases, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Herestraat 49, O&NI, box 706, B-3000, Leuven, Belgium
- Department of Respiratory Diseases, University Hospitals Leuven, B-3000, Leuven, Belgium
| | - Thierry Troosters
- Laboratory of Respiratory Diseases, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Herestraat 49, O&NI, box 706, B-3000, Leuven, Belgium
- Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Vincent Ninane
- Department of Pneumology, Centre Hospitalier Universitaire Saint-Pierre, Université Libre de Bruxelles, B-1000, Brussels, Belgium
| | - Guy G Brusselle
- Department of Respiratory Medicine, Ghent University Hospital, B-9000, Ghent, Belgium
| | - Wim Janssens
- Laboratory of Respiratory Diseases, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Herestraat 49, O&NI, box 706, B-3000, Leuven, Belgium.
- Department of Respiratory Diseases, University Hospitals Leuven, B-3000, Leuven, Belgium.
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24
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Attier-Zmudka J, Gleize F, Berteaux B, Douadi Y, Colpart E, Dao S, Macaret AS, Gyselinck I, Sérot JM, Balédent O. P-055: Sleep apnea syndrome, hypertension, CSF and dementia. Eur Geriatr Med 2015. [DOI: 10.1016/s1878-7649(15)30158-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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