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Zhang H, Li X, Zhang X, Yuan Y, Zhao C, Zhang J. Quantitative CT analysis of idiopathic pulmonary fibrosis and correlation with lung function study. BMC Pulm Med 2024; 24:437. [PMID: 39238010 DOI: 10.1186/s12890-024-03254-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 08/29/2024] [Indexed: 09/07/2024] Open
Abstract
BACKGROUND Idiopathic Pulmonary Fibrosis (IPF) is a progressive fibrotic lung disease. However, the field of quantitative CT scan analysis in conjunction with pulmonary function test for IPF patients remains relatively understudied. In this study, we evaluated the diagnostic value of features derived high-resolution computed tomography (HRCT) for patients with IPF and correlated them with pulmonary function tests. METHODS We retrospectively analyzed the chest HRCT images and pulmonary function test results of 52 patients with IPF during the same period (1 week) and selected 52 healthy individuals, matched for sex, age, and body mass index (BMI) and with normal chest HRCT as controls. HRCT scans were performed using a Philips 256-row Brilliance iCT scanner with standardized parameters. Lung function tests were performed using a Jaeger volumetric tracer for forced vital capacity (FVC), total lung capacity (TLC), forced expiratory volume in first second (FEV1), FEV1/FVC, carbon monoxide diffusing capacity (DLCO), and maximum ventilation volume (MVV) metrics. CT quantitative analysis, including tissue segmentation and threshold-based quantification of lung abnormalities, was performed using 3D-Slicer software to calculate the percentage of normal lung areas (NL%), percentage of ground-glass opacity areas (GGO%), percentage of fibrotic area (F%) and abnormal lesion area percentage (AA%). Semi-quantitative analyses were performed by two experienced radiologists to assess disease progression. The aortic-to-sternal distance (ASD) was measured on axial images as a standardized parameter. Spearman or Pearson correlation analysis and multivariate stepwise linear regression were used to analyze the relationship between the data in each group, and the ROC curve was used to determine the optimal quantitative CT metrics for identifying IPF and controls. RESULTS ROC curve analysis showed that F% distinguished the IPF patient group from the control group with the largest area under the curve (AUC) of 0.962 (95% confidence interval: 0.85-0.96). Additionally, with F% = 4.05% as the threshold, the Youden's J statistic was 0.827, with a sensitivity of 92.3% and a specificity of 90.4%. The ASD was significantly lower in the late stage of progression than in the early stage (t = 5.691, P < 0.001), with a mean reduction of 2.45% per month. Quantitative CT indices correlated with all pulmonary function parameters except FEV1/FVC, with the highest correlation coefficients observed for F% and TLC%, FEV1%, FVC%, MVV% (r = - 0.571, - 0.520, - 0.521, - 0.555, respectively, all P-values < 0.001), and GGO% was significantly correlated with DLCO% (r = - 0.600, P < 0.001). Multiple stepwise linear regression analysis showed that F% was the best predictor of TLC%, FEV1%, FVC%, and MVV% (R2 = 0.301, 0.301, 0.300, and 0.302, respectively, all P-values < 0.001), and GGO% was the best predictor of DLCO% (R2 = 0.360, P < 0.001). CONCLUSIONS Quantitative CT analysis can be used to diagnose IPF and assess lung function impairment. A decrease in the ASD may indicate disease progression.
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Affiliation(s)
- Hongmei Zhang
- Department of Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
| | - Xinyi Li
- Department of Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
| | - Xiaoyue Zhang
- Department of Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
| | - Yu Yuan
- Department of Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
| | - Chenglei Zhao
- Department of Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
| | - Jinling Zhang
- Department of Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150000, China.
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Yasuda N, Iwasawa T, Baba T, Misumi T, Cheng S, Kato S, Utsunomiya D, Ogura T. Evaluation of Progressive Architectural Distortion in Idiopathic Pulmonary Fibrosis Using Deformable Registration of Sequential CT Images. Diagnostics (Basel) 2024; 14:1650. [PMID: 39125526 PMCID: PMC11311668 DOI: 10.3390/diagnostics14151650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 07/20/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND Monitoring the progression of idiopathic pulmonary fibrosis (IPF) using CT primarily focuses on assessing the extent of fibrotic lesions, without considering the distortion of lung architecture. OBJECTIVES To evaluate three-dimensional average displacement (3D-AD) quantification of lung structures using deformable registration of serial CT images as a parameter of local lung architectural distortion and predictor of IPF prognosis. MATERIALS AND METHODS Patients with IPF evaluated between January 2016 and March 2017 who had undergone CT at least twice were retrospectively included (n = 114). The 3D-AD was obtained by deformable registration of baseline and follow-up CT images. A computer-aided quantification software measured the fibrotic lesion volume. Cox regression analysis evaluated these variables to predict mortality. RESULTS The 3D-AD and the fibrotic lesion volume change were significantly larger in the subpleural lung region (5.2 mm (interquartile range (IQR): 3.6-7.1 mm) and 0.70% (IQR: 0.22-1.60%), respectively) than those in the inner region (4.7 mm (IQR: 3.0-6.4 mm) and 0.21% (IQR: 0.004-1.12%), respectively). Multivariable logistic analysis revealed that subpleural region 3D-AD and fibrotic lesion volume change were independent predictors of mortality (hazard ratio: 1.12 and 1.23; 95% confidence interval: 1.02-1.22 and 1.10-1.38; p = 0.01 and p < 0.001, respectively). CONCLUSIONS The 3D-AD quantification derived from deformable registration of serial CT images serves as a marker of lung architectural distortion and a prognostic predictor in patients with IPF.
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Affiliation(s)
- Naofumi Yasuda
- Department of Radiology, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-Higashi, Kanazawa-ku, Yokohama 236-0051, Kanagawa, Japan;
- Department of Diagnostic Radiology, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan; (S.C.); (S.K.); (D.U.)
| | - Tae Iwasawa
- Department of Radiology, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-Higashi, Kanazawa-ku, Yokohama 236-0051, Kanagawa, Japan;
- Department of Diagnostic Radiology, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan; (S.C.); (S.K.); (D.U.)
| | - Tomohisa Baba
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-Higashi, Kanazawa-ku, Yokohama 236-0051, Kanagawa, Japan; (T.B.); (T.O.)
| | - Toshihiro Misumi
- Department of Biostatistics, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan;
| | - Shihyao Cheng
- Department of Diagnostic Radiology, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan; (S.C.); (S.K.); (D.U.)
| | - Shingo Kato
- Department of Diagnostic Radiology, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan; (S.C.); (S.K.); (D.U.)
| | - Daisuke Utsunomiya
- Department of Diagnostic Radiology, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan; (S.C.); (S.K.); (D.U.)
| | - Takashi Ogura
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-Higashi, Kanazawa-ku, Yokohama 236-0051, Kanagawa, Japan; (T.B.); (T.O.)
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Pagliaro R, Aronne L, Fomez R, Ferri V, Montella A, Sanduzzi Zamparelli S, Bianco A, Perrotta F. High-Flow Nasal Cannula System in Respiratory Failure Associated with Interstitial Lung Diseases: A Systematic Review and Narrative Synthesis. J Clin Med 2024; 13:2956. [PMID: 38792497 PMCID: PMC11122032 DOI: 10.3390/jcm13102956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/09/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Background: High-flow nasal cannula (HFNC) therapy has emerged as a promising treatment modality for interstitial lung disease (ILD)-related respiratory failure. This systematic review aims to evaluate the efficacy and safety of HFNC therapy in patients with ILDs. Methods: A comprehensive literature search was conducted using major electronic databases to identify relevant studies investigating the use of HFNC therapy in ILD patients with respiratory failure. Outcome measures of interest included improvements in oxygenation, dyspnea relief, respiratory rate control, hospital length of stay, and mortality. Results: Twelve studies were analyzed with an overall population of 715 patients included. Idiopathic Pulmonary Fibrosis (IPF) was the most prevalent type of ILD. Evaluated clinical settings were acute (7 studies), chronic (2 studies), and end-stage (3 studies) ILDs. The HFNC as a support for acute respiratory failure seems not inferior to non-invasive ventilation while offering better comfort and patient's perception. Poor data are available about use in chronic/long-term or rehabilitative settings. In end of life/palliative care, an HFNC might improve quality of life. Despite the promising results, further research is warranted to establish optimal HFNC protocols, identify patient subgroups most likely to benefit, and explore long-term outcomes. Conclusions: Overall, the HFNC appears to be a valuable therapeutic option for managing respiratory failure in ILD patients, offering potential improvements in oxygenation and symptom relief.
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Affiliation(s)
- Raffaella Pagliaro
- Department of Translational Medical Sciences, University of Campania “L. Vanvitelli”, 80131 Naples, Italy; (R.P.); (R.F.); (V.F.); (A.M.); (A.B.)
- U.O.C. Clinica Pneumologica L. Vanvitelli, A. O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
| | - Luigi Aronne
- Department of Translational Medical Sciences, University of Campania “L. Vanvitelli”, 80131 Naples, Italy; (R.P.); (R.F.); (V.F.); (A.M.); (A.B.)
- U.O.C. Clinica Pneumologica L. Vanvitelli, A. O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
| | - Ramona Fomez
- Department of Translational Medical Sciences, University of Campania “L. Vanvitelli”, 80131 Naples, Italy; (R.P.); (R.F.); (V.F.); (A.M.); (A.B.)
- U.O.C. Clinica Pneumologica L. Vanvitelli, A. O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
| | - Vincenzo Ferri
- Department of Translational Medical Sciences, University of Campania “L. Vanvitelli”, 80131 Naples, Italy; (R.P.); (R.F.); (V.F.); (A.M.); (A.B.)
- U.O.C. Clinica Pneumologica L. Vanvitelli, A. O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
| | - Antonia Montella
- Department of Translational Medical Sciences, University of Campania “L. Vanvitelli”, 80131 Naples, Italy; (R.P.); (R.F.); (V.F.); (A.M.); (A.B.)
- U.O.C. Clinica Pneumologica L. Vanvitelli, A. O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
| | | | - Andrea Bianco
- Department of Translational Medical Sciences, University of Campania “L. Vanvitelli”, 80131 Naples, Italy; (R.P.); (R.F.); (V.F.); (A.M.); (A.B.)
- U.O.C. Clinica Pneumologica L. Vanvitelli, A. O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
| | - Fabio Perrotta
- Department of Translational Medical Sciences, University of Campania “L. Vanvitelli”, 80131 Naples, Italy; (R.P.); (R.F.); (V.F.); (A.M.); (A.B.)
- U.O.C. Clinica Pneumologica L. Vanvitelli, A. O. dei Colli, Monaldi Hospital, 80131 Naples, Italy
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Zhao A, Gudmundsson E, Mogulkoc N, van Moorsel C, Corte TJ, Vasudev P, Romei C, Chapman R, Wallis TJ, Denneny E, Goos T, Savas R, Ahmed A, Brereton CJ, van Es HW, Jo H, De Liperi A, Duncan M, Pontoppidan K, De Sadeleer LJ, van Beek F, Barnett J, Cross G, Procter A, Veltkamp M, Hopkins P, Moodley Y, Taliani A, Taylor M, Verleden S, Tavanti L, Vermant M, Nair A, Stewart I, Janes SM, Young AL, Barber D, Alexander DC, Porter JC, Wells AU, Jones MG, Wuyts WA, Jacob J. Mortality surrogates in combined pulmonary fibrosis and emphysema. Eur Respir J 2024; 63:2300127. [PMID: 37973176 PMCID: PMC7616106 DOI: 10.1183/13993003.00127-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 09/24/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) with coexistent emphysema, termed combined pulmonary fibrosis and emphysema (CPFE) may associate with reduced forced vital capacity (FVC) declines compared to non-CPFE IPF patients. We examined associations between mortality and functional measures of disease progression in two IPF cohorts. METHODS Visual emphysema presence (>0% emphysema) scored on computed tomography identified CPFE patients (CPFE/non-CPFE: derivation cohort n=317/n=183, replication cohort n=358/n=152), who were subgrouped using 10% or 15% visual emphysema thresholds, and an unsupervised machine-learning model considering emphysema and interstitial lung disease extents. Baseline characteristics, 1-year relative FVC and diffusing capacity of the lung for carbon monoxide (D LCO) decline (linear mixed-effects models), and their associations with mortality (multivariable Cox regression models) were compared across non-CPFE and CPFE subgroups. RESULTS In both IPF cohorts, CPFE patients with ≥10% emphysema had a greater smoking history and lower baseline D LCO compared to CPFE patients with <10% emphysema. Using multivariable Cox regression analyses in patients with ≥10% emphysema, 1-year D LCO decline showed stronger mortality associations than 1-year FVC decline. Results were maintained in patients suitable for therapeutic IPF trials and in subjects subgrouped by ≥15% emphysema and using unsupervised machine learning. Importantly, the unsupervised machine-learning approach identified CPFE patients in whom FVC decline did not associate strongly with mortality. In non-CPFE IPF patients, 1-year FVC declines ≥5% and ≥10% showed strong mortality associations. CONCLUSION When assessing disease progression in IPF, D LCO decline should be considered in patients with ≥10% emphysema and a ≥5% 1-year relative FVC decline threshold considered in non-CPFE IPF patients.
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Affiliation(s)
- An Zhao
- Satsuma Lab, Centre for Medical Image Computing, UCL, London,
UK
- Centre for Medical Image Computing, UCL, London, UK
| | - Eyjolfur Gudmundsson
- Satsuma Lab, Centre for Medical Image Computing, UCL, London,
UK
- Centre for Medical Image Computing, UCL, London, UK
| | - Nesrin Mogulkoc
- Department of Respiratory Medicine, Ege University Hospital,
Izmir, Turkey
| | - Coline van Moorsel
- Interstitial Lung Diseases Center of Excellence, Department of
Pulmonology, St Antonius Hospital, Nieuwegein, Netherlands
| | - Tamera J. Corte
- Department of Respiratory Medicine, Royal Prince Alfred Hospital
and University of Sydney, Sydney, Australia
| | - Pardeep Vasudev
- Satsuma Lab, Centre for Medical Image Computing, UCL, London,
UK
- Centre for Medical Image Computing, UCL, London, UK
| | - Chiara Romei
- Department of Radiology, Pisa University Hospital, Pisa,
Italy
| | - Robert Chapman
- Interstitial Lung Disease Service, Department of Respiratory
Medicine, University College London Hospitals NHS Foundation Trust, London,
UK
| | - Tim J.M. Wallis
- NIHR Southampton Biomedical Research Centre and Clinical and
Experimental Sciences, University of Southampton, Southampton, UK
| | - Emma Denneny
- Interstitial Lung Disease Service, Department of Respiratory
Medicine, University College London Hospitals NHS Foundation Trust, London,
UK
| | - Tinne Goos
- BREATHE, Department of Chronic Diseases and Metabolism, KU
Leuven, Leuven, Belgium
- Department of Respiratory Diseases, University Hospitals
Leuven, Leuven, Belgium
| | - Recep Savas
- Department of Radiology, Ege University Hospital, Izmir,
Turkey
| | - Asia Ahmed
- Department of Radiology, University College London Hospitals
NHS Foundation Trust, London, UK
| | - Christopher J. Brereton
- NIHR Southampton Biomedical Research Centre and Clinical and
Experimental Sciences, University of Southampton, Southampton, UK
| | - Hendrik W. van Es
- Interstitial Lung Diseases Center of Excellence, Department of
Pulmonology, St Antonius Hospital, Nieuwegein, Netherlands
| | - Helen Jo
- Department of Respiratory Medicine, Royal Prince Alfred Hospital
and University of Sydney, Sydney, Australia
| | | | - Mark Duncan
- Department of Radiology, University College London Hospitals
NHS Foundation Trust, London, UK
| | - Katarina Pontoppidan
- NIHR Southampton Biomedical Research Centre and Clinical and
Experimental Sciences, University of Southampton, Southampton, UK
| | - Laurens J. De Sadeleer
- Department of Respiratory Diseases, University Hospitals
Leuven, Leuven, Belgium
- Institute of Lung Health and Immunity (LHI) / Comprehensive
Pneumology Center (CPC), Helmholtz Zentrum München, Munich, Germany
| | - Frouke van Beek
- Interstitial Lung Diseases Center of Excellence, Department of
Pulmonology, St Antonius Hospital, Nieuwegein, Netherlands
| | - Joseph Barnett
- Department of Radiology, Royal Free London NHS Foundation
Trust, London, UK
| | - Gary Cross
- Department of Radiology, Royal United Hospitals Bath NHS
Foundation Trust, Bath, UK
| | - Alex Procter
- Department of Radiology, University College London Hospitals
NHS Foundation Trust, London, UK
| | - Marcel Veltkamp
- Interstitial Lung Diseases Center of Excellence, Department of
Pulmonology, St Antonius Hospital, Nieuwegein, Netherlands
- Division of Heart and Lungs, University Medical Center,
Utrecht, Netherlands
| | - Peter Hopkins
- Queensland Centre for Pulmonary Transplantation and Vascular
Disease, The Prince Charles Hospital, QLD, Australia
| | - Yuben Moodley
- School of Medicine & Pharmacology, University Western
Australia, WA, Australia
- Fiona Stanley Hospital, Perth, Australia
| | | | - Magali Taylor
- Department of Radiology, University College London Hospitals
NHS Foundation Trust, London, UK
| | - Stijn Verleden
- Antwerp Surgical Training, Anatomy and Research Centre
(ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp,
Edegem, Belgium
| | - Laura Tavanti
- Cardiovascular and Thoracic Department, Pisa University
Hospital, Pisa, Italy
| | - Marie Vermant
- BREATHE, Department of Chronic Diseases and Metabolism, KU
Leuven, Leuven, Belgium
- Department of Respiratory Diseases, University Hospitals
Leuven, Leuven, Belgium
| | - Arjun Nair
- Department of Radiology, University College London Hospitals
NHS Foundation Trust, London, UK
| | - Iain Stewart
- National Heart and Lung Institute, Imperial College London,
London, UK
| | - Sam M. Janes
- Lungs for Living Research Centre, UCL, London, UK
| | - Alexandra L. Young
- Centre for Medical Image Computing, UCL, London, UK
- Department of Neuroimaging, Institute of Psychiatry, Psychology
and Neuroscience, King’s College London, London, UK
| | - David Barber
- Centre for Artificial Intelligence, UCL, London, UK
| | | | - Joanna C. Porter
- Interstitial Lung Disease Service, Department of Respiratory
Medicine, University College London Hospitals NHS Foundation Trust, London,
UK
| | - Athol U. Wells
- Department of Respiratory Medicine, Royal Brompton Hospital,
London, UK
- Imperial College London, London, UK
| | - Mark G. Jones
- NIHR Southampton Biomedical Research Centre and Clinical and
Experimental Sciences, University of Southampton, Southampton, UK
| | - Wim A. Wuyts
- BREATHE, Department of Chronic Diseases and Metabolism, KU
Leuven, Leuven, Belgium
- Department of Respiratory Diseases, University Hospitals
Leuven, Leuven, Belgium
| | - Joseph Jacob
- Satsuma Lab, Centre for Medical Image Computing, UCL, London,
UK
- Centre for Medical Image Computing, UCL, London, UK
- Lungs for Living Research Centre, UCL, London, UK
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Ebert C, Walsh AM, Sereda L, Wilson CL, Schafer PH, Fischer A, Zhao L, Ramirez-Valle F, Gordon D, Schnapp LM. Circulating biomarker analyses in a longitudinal cohort of patients with IPF. Am J Physiol Lung Cell Mol Physiol 2024; 326:L303-L312. [PMID: 38226605 PMCID: PMC11281789 DOI: 10.1152/ajplung.00222.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/21/2023] [Accepted: 01/05/2024] [Indexed: 01/17/2024] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is an incurable interstitial lung disease characterized by fibrosis. Two FDA-approved drugs, pirfenidone and nintedanib, only modestly prolong survival. In this study, we asked whether levels of select circulating biomarkers in patients with IPF demonstrated changes in response to treatment over time and whether treatment with pirfenidone and nintedanib led to differential biomarker expression. Serial plasma samples from 48 patients with IPF on usual treatment and six healthy volunteers were analyzed to identify differentially expressed blood protein. Hypothesis-driven potential biomarker selection was based on recent literature, internal preclinical data, and the PROLIFIC Consortium (Schafer P. 6th Annual IPF Summit. Boston, MA, 2022) proposed biomarkers of pulmonary fibrosis. We compared our findings to public databases to provide insights into relevant signaling pathways in IPF. Of the 26 proteins measured, we found that 11 (SP-D, TIMP1, MMP7, CYFRA21-1, YKL40, CA125, sICAM, IP-10, MDC, CXCL13) were significantly elevated in patients with IPF compared with healthy volunteers but their levels did not significantly change over time. In the IPF samples, seven proteins were elevated in the treatment group compared with the no-treatment group. However, protein profiles were not distinguishable between patients on pirfenidone versus nintedanib. We demonstrated that most proteins differentially detected in our samples were predicted to be secreted from the lung epithelial or interstitial compartments. However, a significant minority of the proteins are not known to be transcriptionally expressed by lung cells, suggesting an ongoing systemic response. Understanding the contributions of the systemic response in IPF may be important as new therapeutics are developed.NEW & NOTEWORTHY In this study, we confirmed protein expression differences in only a subset of predicted biomarkers from IPF and control subjects. Most differentially expressed proteins were predicted to be secreted from lung cells. However, a significant minority of the proteins are not known to be transcriptionally expressed by lung cells, suggesting an ongoing systemic response. The contributions of the systemic response in IPF may be important as new therapeutics are developed.
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Affiliation(s)
| | - Alice M Walsh
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Larisa Sereda
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Carole L Wilson
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, United States
- Medical University of South Carolina, Charleston, South Carolina, United States
| | | | - Aryeh Fischer
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Lei Zhao
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | | | - David Gordon
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Lynn M Schnapp
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, United States
- Medical University of South Carolina, Charleston, South Carolina, United States
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6
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Park H, Yoon SH. Deep learning segmentation and registration-driven lung parenchymal volume and movement CT analysis in prone positioning. PLoS One 2024; 19:e0299366. [PMID: 38422097 PMCID: PMC10903838 DOI: 10.1371/journal.pone.0299366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 02/08/2024] [Indexed: 03/02/2024] Open
Abstract
PURPOSE To conduct a volumetric and movement analysis of lung parenchyma in prone positioning using deep neural networks (DNNs). METHOD We included patients with suspected interstitial lung abnormalities or disease who underwent full-inspiratory supine and prone chest CT at a single institution between June 2021 and March 2022. A thoracic radiologist visually assessed the fibrosis extent in the total lung (using units of 10%) on supine CT. After preprocessing the images into 192×192×192 resolution, a DNN automatically segmented the whole lung and pulmonary lobes in prone and supine CT images. Affine registration matched the patient's center and location, and the DNN deformably registered prone and supine CT images to calculate the x-, y-, z-axis, and 3D pixel movements. RESULTS In total, 108 CT pairs had successful registration. Prone positioning significantly increased the left lower (90.2±69.5 mL, P = 0.000) and right lower lobar volumes (52.5±74.2 mL, P = 0.000). During deformable registration, the average maximum whole-lung pixel movements between the two positions were 1.5, 1.9, 1.6, and 2.8 cm in each axis and 3D plane. Compared to patients with <30% fibrosis, those with ≥30% fibrosis had smaller volume changes (P<0.001) and smaller pixel movements in all axes between the positions (P = 0.000-0.007). Forced vital capacity (FVC) correlated with the left lower lobar volume increase (Spearman correlation coefficient, 0.238) and the maximum whole-lung pixel movements in all axes (coefficients, 0.311 to 0.357). CONCLUSIONS Prone positioning led to the preferential expansion of the lower lobes, correlated with FVC, and lung fibrosis limited lung expansion during prone positioning.
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Affiliation(s)
- Hyungin Park
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Soon Ho Yoon
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
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7
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Singer D, Chastek B, Sargent A, Johnson JC, Shetty S, Conoscenti C, Bernstein EJ. Impact of chronic fibrosing interstitial lung disease on healthcare use: association between fvc decline and inpatient hospitalization. BMC Pulm Med 2023; 23:337. [PMID: 37689630 PMCID: PMC10492374 DOI: 10.1186/s12890-023-02637-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023] Open
Abstract
BACKGROUND Many types of interstitial lung diseases (ILDs) may transition to progressive chronic-fibrosing ILDs with rapid lung function decline and a negative survival prognosis. In real-world clinical settings, forced vital capacity (FVC) measures demonstrating progressive decline may be linked to negative outcomes, including increased risks of costly healthcare resource utilization (HRU). Thus, we assessed the relationship between rate of decline in lung function and an increase in HRU, specifically inpatient hospitalization, among patients with chronic fibrosing ILD. METHODS This study utilized electronic health records from 01-Oct-2015 to 31-Oct-2019. Eligible patients (≥ 18 years old) had ≥ 2 fibrosing ILD diagnosis codes, clinical activity for ≥ 15 months, and ≥ 2 FVC tests occurring 6 months apart. Patients with missing demographic data, IPF, or use of nintedanib or pirfenidone were excluded. Two groups were defined by relative change in percent of predicted FVC (FVC% pred) from baseline to 6 months: significant decline (≥ 10%) vs. marginal decline/stable FVC (decrease < 10% or increase). The primary outcome was defined as the occurrence of an inpatient hospitalization 6 months after the first FVC value. Descriptive and multivariable analysis was conducted to examine the impact of FVC decline on occurrence of inpatient hospitalization. RESULTS The sample included 566 patients: 13% (n = 75) with significant decline and 87% (n = 491) with marginal decline/stable FVC; their mean age (SD) was 65 (13.7) years and 56% were female. Autoimmune diagnoses were observed among 40% of patients with significant decline, and 27% with marginal decline/stable FVC. The significant decline group had better lung function at baseline than the marginal/stable group. For patients with FVC% <80% at baseline, reduction of FVC% ≥10% was associated with significantly increased odds of an inpatient hospitalization (odds ratio [OR] 2.85; confidence interval [CI] 1.17, 6.94 [p = 0.021]). CONCLUSION Decline in FVC% ≥10% was associated with increased odds of inpatient hospitalization among patients with reduced lung function at baseline. These findings support the importance of preserving lung function among patients with fibrosing ILD.
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Affiliation(s)
- David Singer
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT USA
| | - Benjamin Chastek
- Optum, Health Economics and Outcomes Research, Eden Prairie, MN USA
| | - Andrew Sargent
- Optum, Health Economics and Outcomes Research, Eden Prairie, MN USA
| | | | - Sharash Shetty
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT USA
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Alyami AS. The Role of Radiomics in Fibrosis Crohn's Disease: A Review. Diagnostics (Basel) 2023; 13:diagnostics13091623. [PMID: 37175014 PMCID: PMC10178496 DOI: 10.3390/diagnostics13091623] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a global health concern that has been on the rise in recent years. In addition, imaging is the established method of care for detecting, diagnosing, planning treatment, and monitoring the progression of IBD. While conventional imaging techniques are limited in their ability to provide comprehensive information, cross-sectional imaging plays a crucial role in the clinical management of IBD. However, accurately characterizing, detecting, and monitoring fibrosis in Crohn's disease remains a challenging task for clinicians. Recent advances in artificial intelligence technology, machine learning, computational power, and radiomic emergence have enabled the automated evaluation of medical images to generate prognostic biomarkers and quantitative diagnostics. Radiomics analysis can be achieved via deep learning algorithms or by extracting handcrafted radiomics features. As radiomic features capture pathophysiological and biological data, these quantitative radiomic features have been shown to offer accurate and rapid non-invasive tools for IBD diagnostics, treatment response monitoring, and prognosis. For these reasons, the present review aims to provide a comprehensive review of the emerging radiomics methods in intestinal fibrosis research that are highlighted and discussed in terms of challenges and advantages.
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Affiliation(s)
- Ali S Alyami
- Department of Diagnostic Radiography Technology, College of Applied Medical Sciences, Jazan University, Jazan 45142, Saudi Arabia
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9
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Rajan SK, Cottin V, Dhar R, Danoff S, Flaherty KR, Brown KK, Mohan A, Renzoni E, Mohan M, Udwadia Z, Shenoy P, Currow D, Devraj A, Jankharia B, Kulshrestha R, Jones S, Ravaglia C, Quadrelli S, Iyer R, Dhooria S, Kolb M, Wells AU. Progressive pulmonary fibrosis: an expert group consensus statement. Eur Respir J 2023; 61:2103187. [PMID: 36517177 PMCID: PMC10060665 DOI: 10.1183/13993003.03187-2021] [Citation(s) in RCA: 44] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 11/17/2022] [Indexed: 12/23/2022]
Abstract
This expert group consensus statement emphasises the need for standardising the definition of progressive fibrosing interstitial lung diseases (F-ILDs), with an accurate initial diagnosis being of paramount importance in ensuring appropriate initial management. Equally, case-by-case decisions on monitoring and management are essential, given the varying presentations of F-ILDs and the varying rates of progression. The value of diagnostic tests in risk stratification at presentation and, separately, the importance of a logical monitoring strategy, tailored to manage the risk of progression, are also stressed. The term "progressive pulmonary fibrosis" (PPF) exactly describes the entity that clinicians often face in practice. The importance of using antifibrotic therapy early in PPF (once initial management has failed to prevent progression) is increasingly supported by evidence. Artificial intelligence software for high-resolution computed tomography analysis, although an exciting tool for the future, awaits validation. Guidance is provided on pulmonary rehabilitation, oxygen and the use of non-invasive ventilation focused specifically on the needs of ILD patients with progressive disease. PPF should be differentiated from acute deterioration due to drug-induced lung toxicity or other forms of acute exacerbations. Referral criteria for a lung transplant are discussed and applied to patient needs in severe diseases where transplantation is not realistic, either due to access limitations or transplantation contraindications. In conclusion, expert group consensus guidance is provided on the diagnosis, treatment and monitoring of F-ILDs with specific focus on the recognition of PPF and the management of pulmonary fibrosis progressing despite initial management.
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Affiliation(s)
- Sujeet K Rajan
- Bombay Hospital Institute of Medical Sciences and Bhatia Hospital, Mumbai, India
| | - Vincent Cottin
- National French Reference Coordinating Center for Rare Pulmonary Diseases, Louis Pradel Hospital Hospices Civils de Lyon, Université Claude Bernard Lyon 1, INRAE, Member of ERN-LUNG, Lyon, France
| | | | - Sonye Danoff
- Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - Kevin K Brown
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | - Anant Mohan
- All India Institute of Medical Sciences, New Delhi, India
| | | | | | | | - Padmanabha Shenoy
- Department of Rheumatology, Centre for Arthritis and Rheumatism Excellence, Kochi, India
| | | | - Anand Devraj
- Department of Radiology, Royal Brompton Hospital, London, UK
| | | | - Ritu Kulshrestha
- Department of Pathology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Steve Jones
- European Idiopathic Pulmonary Fibrosis Federation (EU-IPFF), Peterborough, UK
| | - Claudia Ravaglia
- Pulmonology Unit, GB Morgagni Hospital/University of Bologna, Forlì, Italy
| | | | - Rajam Iyer
- Bhatia Hospital and PD Hinduja Hospital, Mumbai, India
| | - Sahajal Dhooria
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Martin Kolb
- Firestone Institute for Respiratory Heath, St Joseph's Healthcare and McMaster University, Hamilton, ON, Canada
- Co-senior authors
| | - Athol U Wells
- Interstitial Lung Disease Unit, Royal Brompton and Harefield NHS Foundation Trust, London, UK
- Co-senior authors
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Fainberg HP, Oldham JM, Molyneau PL, Allen RJ, Kraven LM, Fahy WA, Porte J, Braybrooke R, Saini G, Karsdal MA, Leeming DJ, Sand JMB, Triguero I, Oballa E, Wells AU, Renzoni E, Wain LV, Noth I, Maher TM, Stewart ID, Jenkins RG. Forced vital capacity trajectories in patients with idiopathic pulmonary fibrosis: a secondary analysis of a multicentre, prospective, observational cohort. Lancet Digit Health 2022; 4:e862-e872. [PMID: 36333179 DOI: 10.1016/s2589-7500(22)00173-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 08/11/2022] [Accepted: 08/25/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Idiopathic pulmonary fibrosis is a progressive fibrotic lung disease with a variable clinical trajectory. Decline in forced vital capacity (FVC) is the main indicator of progression; however, missingness prevents long-term analysis of patterns in lung function. We aimed to identify distinct clusters of lung function trajectory among patients with idiopathic pulmonary fibrosis using machine learning techniques. METHODS We did a secondary analysis of longitudinal data on FVC collected from a cohort of patients with idiopathic pulmonary fibrosis from the PROFILE study; a multicentre, prospective, observational cohort study. We evaluated the imputation performance of conventional and machine learning techniques to impute missing data and then analysed the fully imputed dataset by unsupervised clustering using self-organising maps. We compared anthropometric features, genomic associations, serum biomarkers, and clinical outcomes between clusters. We also performed a replication of the analysis on data from a cohort of patients with idiopathic pulmonary fibrosis from an independent dataset, obtained from the Chicago Consortium. FINDINGS 415 (71%) of 581 participants recruited into the PROFILE study were eligible for further analysis. An unsupervised machine learning algorithm had the lowest imputation error among tested methods, and self-organising maps identified four distinct clusters (1-4), which was confirmed by sensitivity analysis. Cluster 1 comprised 140 (34%) participants and was associated with a disease trajectory showing a linear decline in FVC over 3 years. Cluster 2 comprised 100 (24%) participants and was associated with a trajectory showing an initial improvement in FVC before subsequently decreasing. Cluster 3 comprised 113 (27%) participants and was associated with a trajectory showing an initial decline in FVC before subsequent stabilisation. Cluster 4 comprised 62 (15%) participants and was associated with a trajectory showing stable lung function. Median survival was shortest in cluster 1 (2·87 years [IQR 2·29-3·40]) and cluster 3 (2·23 years [1·75-3·84]), followed by cluster 2 (4·74 years [3·96-5·73]), and was longest in cluster 4 (5·56 years [5·18-6·62]). Baseline FEV1 to FVC ratio and concentrations of the biomarker SP-D were significantly higher in clusters 1 and 3. Similar lung function clusters with some shared anthropometric features were identified in the replication cohort. INTERPRETATION Using a data-driven unsupervised approach, we identified four clusters of lung function trajectory with distinct clinical and biochemical features. Enriching or stratifying longitudinal spirometric data into clusters might optimise evaluation of intervention efficacy during clinical trials and patient management. FUNDING National Institute for Health and Care Research, Medical Research Council, and GlaxoSmithKline.
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Affiliation(s)
- Hernan P Fainberg
- National Heart and Lung Institute, Imperial College London, London, UK.
| | - Justin M Oldham
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Philip L Molyneau
- National Heart and Lung Institute, Imperial College London, London, UK; Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Richard J Allen
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Luke M Kraven
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - William A Fahy
- Discovery Medicine, GlaxoSmithKline Medicines Research Centre, Stevenage, UK
| | - Joanne Porte
- Nottingham Respiratory Research Unit, NIHR Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Rebecca Braybrooke
- Nottingham Respiratory Research Unit, NIHR Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Gauri Saini
- Nottingham Respiratory Research Unit, NIHR Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | | | | | | | - Isaac Triguero
- Computational Optimisation and Learning Lab, School of Computer Science, University of Nottingham, Nottingham, UK; DaSCI Andalusian Institute in Data Science and Computational Intelligence, University of Granada, Granada, Spain
| | - Eunice Oballa
- Discovery Medicine, GlaxoSmithKline Medicines Research Centre, Stevenage, UK
| | - Athol U Wells
- National Heart and Lung Institute, Imperial College London, London, UK; Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Elisabetta Renzoni
- National Heart and Lung Institute, Imperial College London, London, UK; Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Louise V Wain
- Department of Health Sciences, University of Leicester, Leicester, UK; National Institute for Health Research, Leicester Respiratory Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Imre Noth
- Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, VA, USA
| | - Toby M Maher
- National Heart and Lung Institute, Imperial College London, London, UK; Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK; Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Iain D Stewart
- National Heart and Lung Institute, Imperial College London, London, UK
| | - R Gisli Jenkins
- National Heart and Lung Institute, Imperial College London, London, UK; Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
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Andreikos D, Karampitsakos T, Tzouvelekis A, Stratakos G. Statins’ still controversial role in pulmonary fibrosis: What does the evidence show? Pulm Pharmacol Ther 2022; 77:102168. [DOI: 10.1016/j.pupt.2022.102168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/16/2022] [Accepted: 09/23/2022] [Indexed: 11/07/2022]
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12
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Otsuka J, Yoshizawa S, Ikematsu Y, Kudo K, Osoreda H, Ishimatsu A, Taguchi K, Moriwaki A, Wakamatsu K, Iwanaga T, Yoshida M. Acute exacerbation in antineutrophil cytoplasmic antibody-associated interstitial lung disease: Clinical features and risk factors. Respir Med 2022; 203:106992. [DOI: 10.1016/j.rmed.2022.106992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/30/2022] [Accepted: 09/16/2022] [Indexed: 10/31/2022]
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13
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Yamazaki R, Nishiyama O, Yoshikawa K, Tohda Y, Matsumoto H. Outcome of patients who were incidentally diagnosed with idiopathic pulmonary fibrosis: How early in the disease should we identify patients? Respir Med 2022; 201:106933. [DOI: 10.1016/j.rmed.2022.106933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/05/2022] [Accepted: 07/11/2022] [Indexed: 11/29/2022]
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14
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Otsuka J, Yoshizawa S, Kudo K, Osoreda H, Ishimatsu A, Taguchi K, Moriwaki A, Wakamatsu K, Iwanaga T, Yoshida M. Clinical features of acute exacerbation in rheumatoid arthritis–associated interstitial lung disease: Comparison with idiopathic pulmonary fibrosis. Respir Med 2022; 200:106898. [DOI: 10.1016/j.rmed.2022.106898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/17/2022] [Accepted: 06/01/2022] [Indexed: 10/18/2022]
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15
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Yang CC, Chen CY, Kuo YT, Ko CC, Wu WJ, Liang CH, Yun CH, Huang WM. Radiomics for the Prediction of Response to Antifibrotic Treatment in Patients with Idiopathic Pulmonary Fibrosis: A Pilot Study. Diagnostics (Basel) 2022; 12:diagnostics12041002. [PMID: 35454050 PMCID: PMC9028756 DOI: 10.3390/diagnostics12041002] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 02/06/2023] Open
Abstract
Antifibrotic therapy has changed the treatment paradigm for idiopathic pulmonary fibrosis (IPF); however, a subset of patients still experienced rapid disease progression despite treatment. This study aimed to determine whether CT-based radiomic features can predict therapeutic response to antifibrotic agents. In this retrospective study, 35 patients with IPF on antifibrotic treatment enrolled from two centers were divided into training (n = 26) and external validation (n = 9) sets. Clinical and pulmonary function data were collected. The patients were categorized into stable disease (SD) and progressive disease (PD) groups based on functional or radiologic criteria. From pretreatment non-enhanced high-resolution CT (HRCT) images, twenty-six radiomic features were extracted through whole-lung texture analysis, and six parenchymal patterns were quantified using dedicated imaging platforms. The predictive factors for PD were determined via univariate and multivariate logistic regression analyses. In the training set (SD/PD: 12/14), univariate analysis identified eight radiomic features and ground-glass opacity percentage (GGO%) as potential predicators of PD. However, multivariate analysis found that the single independent predictor was the sum entropy (accuracy, 80.77%; AUC, 0.75). The combined sum entropy-GGO% model improved the predictive performance in the training set (accuracy, 88.46%; AUC, 0.77). The overall accuracy of the combined model in the validation set (SD/PD: 7/2) was 66.67%. Our preliminary results demonstrated that radiomic features based on pretreatment HRCT could predict the response of patients with IPF to antifibrotic treatment.
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Affiliation(s)
- Cheng-Chun Yang
- Department of Medical Imaging, Chi Mei Hospital, Tainan 710, Taiwan; (C.-C.Y.); (C.-Y.C.); (Y.-T.K.); (C.-C.K.)
| | - Chin-Yu Chen
- Department of Medical Imaging, Chi Mei Hospital, Tainan 710, Taiwan; (C.-C.Y.); (C.-Y.C.); (Y.-T.K.); (C.-C.K.)
| | - Yu-Ting Kuo
- Department of Medical Imaging, Chi Mei Hospital, Tainan 710, Taiwan; (C.-C.Y.); (C.-Y.C.); (Y.-T.K.); (C.-C.K.)
- Department of Radiology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Ching-Chung Ko
- Department of Medical Imaging, Chi Mei Hospital, Tainan 710, Taiwan; (C.-C.Y.); (C.-Y.C.); (Y.-T.K.); (C.-C.K.)
- Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Wen-Jui Wu
- Division of Pulmonary and Critical Care Medicine, Mackay Memorial Hospital, Taipei 104, Taiwan;
| | - Chia-Hao Liang
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
| | - Chun-Ho Yun
- Department of Radiology, Mackay Memorial Hospital, Taipei 104, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
- Mackay Junior College of Medicine, Nursing, and Management, New Taipei City 252, Taiwan
- Correspondence: (C.-H.Y.); (W.-M.H.)
| | - Wei-Ming Huang
- Department of Radiology, Mackay Memorial Hospital, Taipei 104, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
- Mackay Junior College of Medicine, Nursing, and Management, New Taipei City 252, Taiwan
- Correspondence: (C.-H.Y.); (W.-M.H.)
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Bolourani S, Sari E, Brenner M, Wang P. The role of eCIRP in bleomycin-induced pulmonary fibrosis in mice. PLoS One 2022; 17:e0266163. [PMID: 35377906 PMCID: PMC8979429 DOI: 10.1371/journal.pone.0266163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 03/15/2022] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE AND DESIGN We examined the role of eCIRP in the pathogenesis of bleomycin-induced pulmonary fibrosis (PF). MATERIAL AND METHODS Publicly available gene expression omnibus datasets were analyzed for the expression of CIRP in lung samples from patients with PF. Wild type (WT) or CIRP-/- mice received daily injections of 10 μg/g bleomycin for 10 days. A subset of bleomycin-injected WT mice was treated with the eCIRP antagonist C23 (8 μg/g/day) from day 10 to day 19. At three weeks, transthoracic echocardiography was performed to measure the degree of pulmonary hypertension, and lung tissues were collected and analyzed for markers of fibrosis. RESULTS Analysis of the mRNA data of human lung samples showed a significant positive correlation between CIRP and α-smooth muscle actin (α-SMA), an important marker of fibrosis. Moreover, the expression of CIRP was higher in patients with acute exacerbation of PF than in patients with stable PF. CIRP-/- mice showed attenuated induction of α-SMA and collagens (Col1a1, Col3a1), reduced hydroxyproline content, decreased histological fibrosis scores, and improved pulmonary hypertension as compared to WT mice. WT mice treated with C23 also had significant attenuation of the above endpoint measure. CONCLUSIONS Our study demonstrates that eCIRP plays a key role in promoting the development of PF, and blocking eCIRP with C23 can significantly attenuate this process.
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Affiliation(s)
- Siavash Bolourani
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States of America
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States of America
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States of America
| | - Ezgi Sari
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States of America
| | - Max Brenner
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States of America
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States of America
- Department of Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States of America
| | - Ping Wang
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States of America
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States of America
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States of America
- Department of Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States of America
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Singer D, Bengtson LGS, Conoscenti CS, Anderson AJ, Brekke L, Shetty SS, de Andrade J. Impact of timing of nintedanib initiation among patients newly diagnosed with idiopathic pulmonary fibrosis. J Med Econ 2022; 25:532-540. [PMID: 35321616 DOI: 10.1080/13696998.2022.2054203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AIMS While nintedanib treatment has been shown to slow the progression of idiopathic pulmonary fibrosis (IPF) in patients across varying levels of lung function, the effect of treatment timing on outcomes has not been examined. We assessed hospitalization risk and medical costs among patients with IPF based on the timing of nintedanib initiation after IPF diagnosis. MATERIALS AND METHODS This retrospective administrative claims study included data from 04/01/2014-09/30/2019 for patients aged ≥40 years who initiated nintedanib within 1 year of IPF diagnosis. Patients were assigned to study cohorts based on the time from IPF diagnosis to nintedanib initiation. All-cause hospitalization and all-cause medical costs were modeled using marginal structural models including inverse probability weights to adjust for both baseline and time-varying characteristics. RESULTS Of 11,195 patients diagnosed with IPF during the identification period, 449 met the study selection criteria (mean age 72.3 years, 68% male, mean follow-up time 13.3 months). Adjusted hospitalization risk and medical costs both varied significantly by the timing of nintedanib initiation (p < .001 and p = .020, respectively). Adjusted weighted hospitalization risk was higher among untreated vs. treated patients in months 2-3, months 4-6, and months 7-12 after diagnosis (hazard ratio [95% CI] 1.97 [1.09-3.56], p = .026; 2.62 [1.22-5.63], p = .014; and 5.57 [2.31-13.45], p < .001, respectively). Medical costs were 69% higher for patients initiating treatment in months 2-3 vs. month 1 (cost ratio [95% CI] 1.69 [1.20-2.38], p = .003). LIMITATIONS Disease severity could not be assessed because clinical data were unavailable; however, proxies such as oxygen use were included to adjust for between-cohort differences in disease severity. CONCLUSIONS Patients who initiate nintedanib promptly after IPF diagnosis may have reduced hospitalization risk and medical costs compared with those who start treatment later. Additional studies are warranted to improve understanding of the impact of prompt antifibrotic therapy on patient outcomes.
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Abstract
Acute exacerbation is a major cause of morbidity and mortality in patients with idiopathic pulmonary fibrosis. Although the real nature of it is still not clear and there is no proven effective therapy, progress has been made since the consensus definition and diagnostic criteria were proposed. The trial results of several new innovative therapies in idiopathic pulmonary fibrosis have suggested a potential for benefit in acute exacerbation of idiopathic pulmonary fibrosis, leading to double blind randomized clinical trials in this area. This article reviews the present knowledge on acute exacerbation of idiopathic pulmonary fibrosis, focusing on the triggering factors and treatment.
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Radiological and Physiological Predictors of IPF Mortality. MEDICINA-LITHUANIA 2021; 57:medicina57101121. [PMID: 34684158 PMCID: PMC8537035 DOI: 10.3390/medicina57101121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/10/2021] [Accepted: 10/14/2021] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Idiopathic pulmonary fibrosis (IPF) has a variable clinical course, which ranges from being asymptomatic to progressive respiratory failure. The purpose of this study was to evaluate the novel clinical parameters of IPF patients who receive an anti-fibrotic agent. Materials and Methods: From January 2011 to January 2021, we identified 39 IPF patients at Okinawa Chubu Hospital. Clinical information was obtained, such as laboratory data, pulmonary function test (PFT) results, and chest images, including of soft tissue thickness and the high-resolution computed tomography (HRCT) pattern at diagnosis. Results: The mean age was 72.9 ± 7.0 (53–85); 27 patients were men and 12 were women. The mean body mass index was 25.1 ± 3.9 (17.3–35). Twenty-four were active smokers and the median number of packs per year was 20. Regarding laboratory findings, mean white blood cell (WBC), lactate dehydrogenase (LDH), and Krebs Von den Lungen-6 (KL-6) values were 7816 ± 1859, 248 ± 47, and 1615 ± 1503, respectively. In PFT, the mean percent predicted FVC, percent predicted total lung capacity, percent predicted functional residual capacity (FRC), and percent predicted diffusion capacity of the lung for carbon monoxide (DLco) were 66.8 ± 14.9%, 71.8 ± 13.7%, 65 ± 39.6%, and 64.6 ± 27.9%, respectively. In chest radiological findings, soft tissue thickness at the right 9th rib was 26.4 ± 8.8 mm. Regarding chest HRCT patterns, 15 showed the definite usual interstitial pneumonia (UIP) pattern, 16 showed the probable UIP pattern, and eight showed the indeterminate for UIP pattern. In the treatment, 24 patients received pirfenidone and 15 patients took nintedanib. The mean observation period was 38.6 ± 30.6 months and 24 patients died. The median survival time was 32.4 months (0.9–142.5). Multivariate analysis adjusted for age showed that both soft tissue thickness [Hazard ratio (HR): 0.912, 95% confidence interval (CI): 0.859–0.979, p-value: 0.009] and percent FRC [HR: 0.980, 95% CI: 0.967–0.992, p-value: 0.002] were robust predictors of IPF mortality. Conclusions: In IPF patients treated with anti-fibrotic agents, both soft tissue thickness at the right 9th rib shown on the chest radiograph and %FRC can be novel predictors of IPF mortality.
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Wells AU, Kouranos V. An IPF-like disease course in disorders other than IPF: how can this be anticipated, recognized, and managed? Expert Rev Clin Immunol 2021; 17:1091-1101. [PMID: 34467827 DOI: 10.1080/1744666x.2021.1968832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Idiopathic pulmonary fibrosis (IPF)-like chronic disease progression despite treatment cannot be predicted with confidence in interstitial lung diseases (ILDs) other than IPF at the time of diagnosis. AREAS COVERED We review key determinants of a progressive fibrotic phenotype, at initial diagnosis of an ILD other than IPF. Medline literature searches (2000 to 2020) were undertaken with regard to the issues discussed in this review. EXPERT OPINION The definition of the progressive fibrotic phenotype in non-IPF patients should remain real world, with a conclusion reached by an experienced clinician that progression has occurred despite the use of appropriate historical therapies, on a case by case basis. There is an urgent need for pathogenetic studies to identify pathways and genetic predilections that are common to chronic progressive fibrosis across different diseases. Efforts should also be focused on the identification of the progressive fibrotic phenotype at first presentation, potentially through a combination of CT and biopsy evaluation and the definition of a biomarker profile associated with subsequent disease progression. Recent anti-fibrotic trials of non-IPF disorders should lead to trials of combination regimens of anti-fibrotic agents and immunomodulatory or other therapies specific to individual diseases.
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Affiliation(s)
- Athol U Wells
- Interstitial Lung Disease Unit, Royal Brompton Hospital, London, UK
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21
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Bowman WS, Echt GA, Oldham JM. Biomarkers in Progressive Fibrosing Interstitial Lung Disease: Optimizing Diagnosis, Prognosis, and Treatment Response. Front Med (Lausanne) 2021; 8:680997. [PMID: 34041256 PMCID: PMC8141562 DOI: 10.3389/fmed.2021.680997] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/06/2021] [Indexed: 12/19/2022] Open
Abstract
Interstitial lung disease (ILD) comprises a heterogenous group of diffuse lung disorders that commonly result in irreversible pulmonary fibrosis. While idiopathic pulmonary fibrosis (IPF) is the prototypical progressive fibrosing ILD (PF-ILD), a high proportion of patients with other ILD subtypes develop a PF-ILD phenotype. Evidence exists for shared pathobiology leading to progressive fibrosis, suggesting that biomarkers of disease activity may prove informative across the wide spectrum of ILDs. Biomarker investigation to date has identified a number of molecular markers that predict relevant ILD endpoints, including disease presence, prognosis, and/or treatment response. In this review, we provide an overview of potentially informative biomarkers in patients with ILD, including those suggestive of a PF-ILD phenotype. We highlight the recent genomic, transcriptomic, and proteomic investigations that identified these biomarkers and discuss the body compartments in which they are found, including the peripheral blood, airway, and lung parenchyma. Finally, we identify critical gaps in knowledge within the field of ILD biomarker research and propose steps to advance the field toward biomarker implementation.
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Affiliation(s)
- Willis S Bowman
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Davis, CA, United States
| | - Gabrielle A Echt
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Davis, CA, United States
| | - Justin M Oldham
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Davis, CA, United States
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Poletti V, Vancheri C, Albera C, Harari S, Pesci A, Metella RR, Campolo B, Crespi G, Rizzoli S. Clinical course of IPF in Italian patients during 12 months of observation: results from the FIBRONET observational study. Respir Res 2021; 22:66. [PMID: 33627105 PMCID: PMC7903602 DOI: 10.1186/s12931-021-01643-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 01/29/2021] [Indexed: 01/20/2023] Open
Abstract
Background FIBRONET was an observational, multicentre, prospective cohort study investigating the baseline characteristics, clinical course of disease and use of antifibrotic treatment in Italian patients with idiopathic pulmonary fibrosis (IPF).
Methods Patients aged ≥ 40 years diagnosed with IPF within the previous 3 months at 20 Italian centres were consecutively enrolled and followed up for 12 months, with evaluations at 3, 6, 9 and 12 months. The primary objective was to describe the clinical course of IPF over 12 months of follow-up, including changes in lung function measured by % predicted forced vital capacity (FVC% predicted). Results 209 patients (82.3% male, mean age 69.54 ± 7.43 years) were enrolled. Mean FVC% predicted was relatively preserved at baseline (80.01%). The mean time between IPF diagnosis and initiation of antifibrotic therapy was 6.38 weeks; 72.3% of patients received antifibrotic therapy within the first 3 months of follow-up, and 83.9% within 12 months of follow-up. Mean FVC% predicted was 80.0% at baseline and 82.2% at 12 months, and 47.4% of patients remained stable (i.e. had no disease progression) in terms of FVC% predicted during the study. Conclusions FIBRONET is the first prospective, real-life, observational study of patients with IPF in Italy. The short time between diagnosis and initiation of antifibrotic therapy, and the stable lung function between baseline and 12 months, suggest that early diagnosis and prompt initiation of antifibrotic therapy may preserve lung function in patients with IPF. Trial registration: NCT02803580
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Affiliation(s)
- V Poletti
- Department of Diseases of the Thorax, Ospedale GB Morgagni, Forlì, Italy.,Department of Respiratory Diseases & Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - C Vancheri
- Regional Referral Centre for Rare Lung Diseases-University Hospital "Policlinico G. Rodolico", Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy.
| | - C Albera
- S.C. Pneumologia U., A.O.U. Città Della Scienza E Della Salute (Molinette), University of Torino, Torino, Italy
| | - S Harari
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Department of Medicine, Ospedale San Giuseppe MultiMedica IRCCS, Milan, Italy
| | - A Pesci
- Ospedale San Gerardo, ASST Monza, Monza, Italy
| | - R R Metella
- Dipartimento di Scienze Mediche Chirurgiche e Neuroscienze, Università degli Studi di Siena, Siena, Italy
| | | | - G Crespi
- Boehringer Ingelheim, Milan, Italy
| | - S Rizzoli
- MediNeos Observational Research, Modena, Italy
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23
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Aussedat PH, Chebib N, Ahmad K, Glerant JC, Drevet G, Grima R, Maury JM, Nasser M, Thivolet-Bejui F, Traclet J, Turquier S, Chalabreysse L, Tronc F, Cottin V. Impact of Lung Biopsy on Lung Function in Idiopathic Pulmonary Fibrosis. Respiration 2020; 99:1101-1108. [PMID: 33260187 DOI: 10.1159/000509557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 06/18/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Video-assisted surgical lung biopsy (SLB) is performed in 10-30% of cases to establish the diagnosis of idiopathic pulmonary fibrosis (IPF). OBJECTIVES The aim of the study was to analyze the impact of SLB on lung function in patients eventually diagnosed with IPF. METHODS This is an observational, retrospective, monocentric study of all consecutive patients eventually diagnosed with IPF in multidisciplinary discussion who underwent SLB over 10 years in a specialized center. The primary end point was the variation in forced vital capacity (FVC) before and after the SLB. The secondary end points were the variations in forced expiratory volume in one second (FEV1), total lung capacity (TLC), carbon monoxide diffusion capacity (DLCO), and morbidity and mortality associated with the SLB. RESULTS In 118 patients who underwent SLB and were diagnosed with IPF, a relative decrease in FVC of 4.8% (p < 0.001) was found between measurements performed before and after the procedure. The mean FVC decrease was 156 ± 386 mL in an average period of 185 days, representing an annualized decline of 363 ± 764 mL/year. A significant decrease was also observed after SLB in FEV1, TLC, and DLCO. Complications within 30 days of SLB occurred in 14.4% of patients. Two patients (1.7%) died within 30 days, where one of them had poor lung function. Survival at 1 year was significantly poorer in patients with FVC <50% at baseline. CONCLUSION In this uncontrolled study in patients ultimately diagnosed with IPF, SLB was followed by a significant decline in FVC, which appears to be numerically greater than the average decline in the absence of treatment in the literature. Summary at a Glance: This study evaluated the change in lung function in 118 consecutive patients diagnosed with idiopathic pulmonary fibrosis by surgical lung biopsy. Forced vital capacity decreased by 156 ± 386 mL in a mean of 185 days between the last measurement before and first measurement after biopsy, representing an annualized decline of 363 ± 764 mL/year.
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Affiliation(s)
- Pierre-Henri Aussedat
- Service de pneumologie, Centre national coordinateur de référence des maladies pulmonaires rares, Groupement Hospitalier Est, Hospices civils de Lyon, UMR 754, INRAE, Université Claude Bernard Lyon 1, Lyon, France
| | - Nader Chebib
- Service de pneumologie, Centre national coordinateur de référence des maladies pulmonaires rares, Groupement Hospitalier Est, Hospices civils de Lyon, UMR 754, INRAE, Université Claude Bernard Lyon 1, Lyon, France
| | - Kais Ahmad
- Service de pneumologie, Centre national coordinateur de référence des maladies pulmonaires rares, Groupement Hospitalier Est, Hospices civils de Lyon, UMR 754, INRAE, Université Claude Bernard Lyon 1, Lyon, France
| | | | - Gabrielle Drevet
- Service de chirurgie thoracique, transplantation pulmonaire et cardio-pulmonaire, Groupement Hospitalier Est, Lyon, France
| | - Renaud Grima
- Service de chirurgie thoracique, transplantation pulmonaire et cardio-pulmonaire, Groupement Hospitalier Est, Lyon, France
| | - Jean-Michel Maury
- Service de chirurgie thoracique, transplantation pulmonaire et cardio-pulmonaire, Groupement Hospitalier Est, Lyon, France
| | - Mouhamad Nasser
- Service de pneumologie, Centre national coordinateur de référence des maladies pulmonaires rares, Groupement Hospitalier Est, Hospices civils de Lyon, UMR 754, INRAE, Université Claude Bernard Lyon 1, Lyon, France
| | | | - Julie Traclet
- Service de pneumologie, Centre national coordinateur de référence des maladies pulmonaires rares, Groupement Hospitalier Est, Hospices civils de Lyon, UMR 754, INRAE, Université Claude Bernard Lyon 1, Lyon, France
| | | | | | - François Tronc
- Service de chirurgie thoracique, transplantation pulmonaire et cardio-pulmonaire, Groupement Hospitalier Est, Lyon, France
| | - Vincent Cottin
- Service de pneumologie, Centre national coordinateur de référence des maladies pulmonaires rares, Groupement Hospitalier Est, Hospices civils de Lyon, UMR 754, INRAE, Université Claude Bernard Lyon 1, Lyon, France,
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24
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Pesonen I, Gao J, Kalafatis D, Carlson L, Sköld M, Ferrara G. Six-minute walking test outweighs other predictors of mortality in idiopathic pulmonary fibrosis. A real-life study from the Swedish IPF registry. RESPIRATORY MEDICINE: X 2020. [DOI: 10.1016/j.yrmex.2020.100017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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25
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Dotan Y, Shapiro WB, Male E, Dominguez EC, Aneja A, Huaqing Z, Dass C, Shenoy K, Marchetti N, Cordova FC, Criner GJ, Mamary AJ. Clinical predictors and explant lung pathology of acute exacerbation of idiopathic pulmonary fibrosis. ERJ Open Res 2020; 6:00261-2019. [PMID: 33043049 PMCID: PMC7533375 DOI: 10.1183/23120541.00261-2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 06/10/2020] [Indexed: 01/09/2023] Open
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is characterised by constant threat of acute exacerbation of IPF (AE-IPF). It would be significant to identify risk factors of AE-IPF. We sought to determine the prognostic value of lung transplantation candidacy testing for AE-IPF and describe explant pathology of recipients with and without AE-IPF before lung transplantation. Methods Retrospective cohort study of 89 IPF patients listed for lung transplantation. Data included pulmonary function testing, echocardiography, right heart catheterisation, imaging, oesophageal pH/manometry and blood tests. Explanted tissue was evaluated by pulmonary pathologists and correlated to computed tomography (CT) findings. Results Out of 89 patients with IPF, 52 were transplanted during stable IPF and 37 had AE-IPF before transplantation (n=28) or death (n=9). There were no substantial differences in candidacy testing with and without AE-IPF. AE-IPF had higher rate of decline of forced vital capacity (FVC) (21±22% versus 4.8±14%, p=0.00019). FVC decline of >15% had a hazard ratio of 7.2 for developing AE-IPF compared to FVC decline of <5% (p=0.004). AE-IPF had more secondary diverse histopathology (82% versus 29%, p<0.0001) beyond diffuse alveolar damage. There was no correlation between ground-glass opacities (GGO) on chest CT at any point to development of AE-IPF (p=0.077), but GGO during AE-IPF predicted secondary pathological process beyond diffuse alveolar damage. Conclusions Lung transplantation candidacy testing including reflux studies did not predict AE-IPF besides FVC absolute decline. CT did not predict clinical or pathological AE-IPF. Secondary diverse lung pathology beyond diffuse alveolar damage was present in most AE-IPF, but not in stable IPF. Transplant candidacy testing fails to predict acute exacerbation of IPF besides FVC absolute decline. Patients transplanted during acute exacerbation of IPF reveal multiple secondary lung histopathological processes beyond the expected DAD.https://bit.ly/3e1CPjO
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Affiliation(s)
- Yaniv Dotan
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - William B Shapiro
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Eneida Male
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Eduardo C Dominguez
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Amandeep Aneja
- Pathology and Laboratory Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Zhao Huaqing
- Dept of Clinical Science, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Chandra Dass
- Dept of Clinical Radiology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Kartik Shenoy
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Nathaniel Marchetti
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Francis C Cordova
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Gerard J Criner
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - A James Mamary
- Dept of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
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Nathan SD. IPF in Saudi Arabia: Lessons for all. Ann Thorac Med 2020; 15:183-184. [PMID: 33381231 PMCID: PMC7720740 DOI: 10.4103/atm.atm_397_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/12/2020] [Indexed: 11/25/2022] Open
Affiliation(s)
- Steven D. Nathan
- Advanced Lung Disease and Transplant Program, Inova Fairfax Hospital, Virginia Commonwealth University, Falls Church, Virginia, USA
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27
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Fukihara J, Kondoh Y, Brown KK, Kimura T, Kataoka K, Matsuda T, Yamano Y, Suzuki A, Furukawa T, Sumikawa H, Takahashi O, Johkoh T, Tanaka T, Fukuoka J, Hashimoto N, Hasegawa Y. Probable usual interstitial pneumonia pattern on chest CT: is it sufficient for a diagnosis of idiopathic pulmonary fibrosis? Eur Respir J 2020; 55:13993003.02465-2018. [PMID: 32029448 DOI: 10.1183/13993003.02465-2018] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 12/31/2019] [Indexed: 12/26/2022]
Abstract
Recent studies have suggested that in patients with an idiopathic interstitial pneumonia (IIP), a probable usual interstitial pneumonia (UIP) pattern on chest computed tomography (CT) is sufficient to diagnose idiopathic pulmonary fibrosis (IPF) without histopathology.We retrospectively compared the prognosis and time to first acute exacerbation (AE) in IIP patients with a UIP and a probable UIP pattern on initial chest CT.One hundred and sixty IIP patients with a UIP pattern and 242 with a probable UIP pattern were identified. Probable UIP pattern was independently associated with longer survival time (adjusted hazard ratio 0.713, 95% CI 0.536-0.950; p=0.021) and time to first AE (adjusted hazard ratio 0.580, 95% CI 0.389-0.866; p=0.008). In subjects with a probable UIP pattern who underwent surgical lung biopsy, the probability of a histopathological UIP pattern was 83%. After multidisciplinary discussion and the inclusion of longitudinal behaviour, a diagnosis of IPF was made in 66% of cases. In IPF patients, survival time and time to first AE were not associated with CT pattern. Among subjects with a probable UIP pattern, compared to non-IPF patients, survival time and time to first AE were shorter in IPF patients.In conclusion, IIP patients with a probable UIP pattern on initial chest CT had a better prognosis and longer time to first AE than those with a UIP pattern. However, when baseline data and longitudinal behaviour provided a final diagnosis of IPF, CT pattern was not associated with these outcomes. This suggests diagnostic heterogeneity among patients with a probable UIP pattern.
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Affiliation(s)
- Jun Fukihara
- Dept of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Dept of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Yasuhiro Kondoh
- Dept of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Kevin K Brown
- Dept of Medicine, National Jewish Health, Denver, CO, USA
| | - Tomoki Kimura
- Dept of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Kensuke Kataoka
- Dept of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Toshiaki Matsuda
- Dept of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Yasuhiko Yamano
- Dept of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Atsushi Suzuki
- Dept of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Dept of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Taiki Furukawa
- Dept of Medical IT Center, Nagoya University Hospital, Nagoya, Japan
| | | | - Osamu Takahashi
- Support Unit for Conducting Clinically Essential Study, St Luke's International University Graduate School of Public Health, Tokyo, Japan
| | - Takeshi Johkoh
- Dept of Radiology, Kinki Central Hospital of Mutual Aid Association of Public School Teachers, Itami, Japan
| | - Tomonori Tanaka
- Dept of Pathology, Kinki University Faculty of Medicine, Osakasayama, Japan
| | - Junya Fukuoka
- Dept of Pathology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Naozumi Hashimoto
- Dept of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Dept of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Tang F, Weber B, Stowasser S, Korell J. Parametric Time-to-Event Model for Acute Exacerbations in Idiopathic Pulmonary Fibrosis. CPT-PHARMACOMETRICS & SYSTEMS PHARMACOLOGY 2020; 9:87-95. [PMID: 31919989 PMCID: PMC7020291 DOI: 10.1002/psp4.12485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/11/2019] [Indexed: 12/31/2022]
Abstract
We describe a parametric time‐to‐event model for idiopathic pulmonary fibrosis (IPF) exacerbations and identify predictors of exacerbation risk using data obtained for the tyrosine‐kinase inhibitor nintedanib in two phase III studies (INPULSIS‐1/2). Parametric survival analysis was performed on time to first exacerbation (censoring on day 372), with univariate analysis to select statistically significant covariates (P = 0.05). Multivariate covariate models were developed using stepwise covariate modeling with forward inclusion (P = 0.05) and backward elimination (P = 0.01). Sixty‐three first exacerbation events were reported across 1,061 subjects in the INPULSIS studies. Baseline and decline of forced vital capacity (FVC)/percent‐predicted FVC (%pFVC), supplemental oxygen use, baseline CO diffusing capacity and age were statistically significant in the univariate analysis. The final covariate model included decline in FVC to week 52, baseline %pFVC, supplemental oxygen use, and age. The developed model may be used to identify patients at high risk of IPF exacerbations and accelerate development of novel treatments.
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Affiliation(s)
- Fei Tang
- Translational Medicine and Clinical Pharmacology, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA.,Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky, USA
| | - Benjamin Weber
- Translational Medicine and Clinical Pharmacology, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
| | - Susanne Stowasser
- Boehringer Ingelheim International GmbH, Ingelheim am Rhein, Germany
| | - Julia Korell
- Translational Medicine and Clinical Pharmacology, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
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Richeldi L, Kolb M, Jouneau S, Wuyts WA, Schinzel B, Stowasser S, Quaresma M, Raghu G. Efficacy and safety of nintedanib in patients with advanced idiopathic pulmonary fibrosis. BMC Pulm Med 2020; 20:3. [PMID: 31914963 PMCID: PMC6951000 DOI: 10.1186/s12890-019-1030-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 12/12/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The two 52-week INPULSIS trials investigated nintedanib versus placebo in patients with IPF, FVC ≥50% predicted and DLco 30-79% predicted. The 24-week INSTAGE trial investigated nintedanib plus sildenafil versus nintedanib alone in patients with IPF and DLco ≤35% predicted. We used data from INPULSIS and INSTAGE to compare the effects of nintedanib in patients with IPF with less versus more severe impairment in gas exchange at baseline. METHODS Analyses were conducted in patients treated with nintedanib alone in the INPULSIS and INSTAGE trials and in patients treated with placebo in the INPULSIS trials. Outcomes included the rate of decline in FVC over 24 weeks, the proportions of patients who had a confirmed or suspected idiopathic acute exacerbation over 24 weeks, deaths over 24 weeks, and adverse events. Analyses were descriptive. RESULTS In total, 638 and 136 patients received nintedanib alone in the INPULSIS and INSTAGE trials, respectively, and 423 patients received placebo in the INPULSIS trials. Rates of FVC decline were - 52.3 and - 66.7 mL/24 weeks in patients treated with nintedanib alone in INPULSIS and INSTAGE, respectively, and - 102.8 mL/24 weeks in patients treated with placebo in INPULSIS. Confirmed or suspected idiopathic acute exacerbations were reported in 0.6 and 3.7% of patients treated with nintedanib alone in INPULSIS and INSTAGE, respectively, and 2.1% of patients treated with placebo in INPULSIS. Deaths occurred in 2.0, 11.0 and 1.9% of patients in these groups, respectively. Diarrhoea adverse events were reported in 52.5 and 48.5% of patients treated with nintedanib alone in INPULSIS and INSTAGE, respectively, and 16.1% of patients treated with placebo in INPULSIS. CONCLUSIONS Based on data from the INSTAGE and INPULSIS trials, nintedanib had a similar effect on FVC decline over 24 weeks, and a similar safety and tolerability profile, in patients with IPF and more versus less severe impairment in gas exchange. These data support the use of nintedanib in patients with IPF who have advanced disease. TRIAL REGISTRATION INPULSIS (NCT01335464 and NCT01335477); INSTAGE (NCT02802345).
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Affiliation(s)
- Luca Richeldi
- Fondazione Policlinico A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Martin Kolb
- McMaster University and St. Joseph's Healthcare, Hamilton, Ontario, Canada
| | - Stéphane Jouneau
- Hôpital Pontchaillou - CHU de Rennes, IRSET UMR 1085, Université de Rennes 1, Rennes, France
| | - Wim A Wuyts
- Unit for Interstitial Lung Diseases, Department of Respiratory Medicine, University Hospitals Leuven, Leuven, Belgium
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Wuyts WA, Wijsenbeek M, Bondue B, Bouros D, Bresser P, Robalo Cordeiro C, Hilberg O, Magnusson J, Manali ED, Morais A, Papiris S, Shaker S, Veltkamp M, Bendstrup E. Idiopathic Pulmonary Fibrosis: Best Practice in Monitoring and Managing a Relentless Fibrotic Disease. Respiration 2019; 99:73-82. [PMID: 31830755 DOI: 10.1159/000504763] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/12/2019] [Indexed: 12/19/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fibrosing interstitial lung disease that is, by definition, progressive. Progression of IPF is reflected by a decline in lung function, worsening of dyspnea and exercise capacity, and deterioration in health-related quality of life. In the short term, the course of disease for an individual patient is impossible to predict. A period of relative stability in forced vital capacity (FVC) does not mean that FVC will remain stable in the near future. Frequent monitoring using multiple assessments, not limited to pulmonary function tests, is important to evaluate disease progression in individual patients and ensure that patients are offered appropriate care. Optimal management of IPF requires a multidimensional approach, including both pharmacological therapy to slow decline in lung function and supportive care to preserve patients' quality of life.
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Affiliation(s)
- Wim A Wuyts
- Department of Respiratory Diseases, Unit for Interstitial Lung Diseases, University Hospitals Leuven, Leuven, Belgium,
| | - Marlies Wijsenbeek
- Department of Respiratory Medicine, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Benjamin Bondue
- Department of Pneumology, Hôpital Erasme, Université libre de Bruxelles, Brussels, Belgium
| | - Demosthenes Bouros
- First Academic Department of Pneumonology, Interstitial Lung Diseases Unit, Department of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Paul Bresser
- Department of Respiratory Medicine, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | | | - Ole Hilberg
- Department of Respiratory Medicine and Allergology, Aarhus University Hospital, Aarhus, Denmark
| | - Jesper Magnusson
- Department of Internal Medicine/Respiratory Medicine and Allergology, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Effrosyni D Manali
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon," Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - António Morais
- Department of Pulmonology, Hospital de São João, Porto, Portugal
| | - Spyridon Papiris
- 2nd Pulmonary Medicine Department, General University Hospital "Attikon," Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Saher Shaker
- Herlev and Gentofte University Hospital, Copenhagen, Denmark
| | - Marcel Veltkamp
- Department of Pulmonology ILD Center of Excellence, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Elisabeth Bendstrup
- Center for Rare Lung Diseases, Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
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Baseline High-Resolution CT Findings Predict Acute Exacerbation of Idiopathic Pulmonary Fibrosis: German and Japanese Cohort Study. J Clin Med 2019; 8:jcm8122069. [PMID: 31771313 PMCID: PMC6947331 DOI: 10.3390/jcm8122069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/18/2019] [Accepted: 11/21/2019] [Indexed: 11/29/2022] Open
Abstract
Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) is a major cause of morbidity and death in IPF. However, sensitive predictive factors of AE-IPF have not been well-investigated. To investigate whether high-resolution computed tomographic (HRCT) abnormalities predict AE-IPF in independent ethnic cohorts, this study included 121 patients with IPF (54 German and 67 Japanese; mean age, 68.5 ± 7.6 years). Two radiologists independently visually assessed the presence and extent of lung abnormalities in each patient. Twenty-two (18.2%) patients experienced AE-IPF during the follow-up. The incidence of AE-IPF was significantly higher in the Japanese patients (n = 18, 26.9%) than in the German patients (n = 4, 7.3%, p < 0.01). In the Kaplan–Meier analysis, patients with a larger extent of ground glass opacity (GGO), fibrosis, and traction bronchiectasis experienced an earlier onset of AE-IPF (p = 0.0033, 0.0088, and 0.049, respectively). In the multivariate analysis, a larger extent of GGO and fibrosis on HRCT were independent predictors of AE-IPF (p = 0.026 and 0.037, respectively). Additionally, Japanese ethnicity was independently associated with the incidence of AE-IPF after adjustment for HRCT findings (p = 0.0074). In conclusion, a larger extent of GGO and fibrosis on HRCT and Japanese ethnicity appear to be risk factors for AE-IPF.
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Cao M, Sheng J, Qiu X, Wang D, Wang D, Wang Y, Xiao Y, Cai H. Acute exacerbations of fibrosing interstitial lung disease associated with connective tissue diseases: a population-based study. BMC Pulm Med 2019; 19:215. [PMID: 31727051 PMCID: PMC6857302 DOI: 10.1186/s12890-019-0960-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 10/15/2019] [Indexed: 01/18/2023] Open
Abstract
Background Acute exacerbation (AE) is the major cause of morbidity and mortality in patients with idiopathic pulmonary fibrosis (IPF). AEs also occur in other forms of fibrosing interstitial lung disease (fILD). The clinical features and prognosis of AE patients with connective tissue diseases (CTDs) associated-ILD has not been fully described. Methods We retrospectively reviewed 177 patients with either IPF or a characterized CTD-ILD admitted to Nanjing Drum Tower Hospital with an AE from January 2010 to December 2016. Results The study cohort included 107 subjects with AE-IPF and 70 cases with AE-CTD-ILD. Female gender, prior use of corticosteroid and immunosupressants, lower serum albumin, higher D-dimer level, TLC% pred, survival, and treatment with immunosupressants and caspofungin were more common in the CTD-ILD group (all p<0.05). The incidences of AE-CTD-ILD and AE-IPF were similar in our single center (p = 0.526). TLC% pred was the risk factor for AE after ILD diagnosis for 1 year in CTD patients (p = 0.018). Log-rank tests showed patients with CTD-ILD had a significantly lower mortality rate compared with IPF patients after AEs (p = 0.029). No significant difference in survival was noted among CTD subgroups (p = 0.353). The survival was negatively correlated with WBC count, LDH and CT score, (p = 0.006, p = 0.013 and p = 0.035, respectively), and positively correlated with PaO2/FiO2 ratio (p<0.001) in the CTD-ILD group. WBC count and PO2/FiO2 ratio were the independent predictors for survival in AE-CTD-ILD after adjusting for other clinical variates in Cox regression Models (p = 0.038 and p < 0.001, respectively). Conclusions The clinical characteristics of patients with AE-CTD-ILD differed from those with AE-IPF, while AE incidences were similar between the two groups. Subjects with AE-CTD-fILD tended to have a better prognosis, and WBC count and PO2/FiO2 ratio were the independent survival predictors for these patients.
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Affiliation(s)
- Mengshu Cao
- Deprtment of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China.
| | - Jian Sheng
- Deprtment of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Xiaohua Qiu
- Deprtment of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Dandan Wang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Dongmei Wang
- Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Yang Wang
- Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Yonglong Xiao
- Deprtment of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
| | - Hourong Cai
- Deprtment of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, China
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Averyanov A, Koroleva I, Konoplyannikov M, Revkova V, Lesnyak V, Kalsin V, Danilevskaya O, Nikitin A, Sotnikova A, Kotova S, Baklaushev V. First-in-human high-cumulative-dose stem cell therapy in idiopathic pulmonary fibrosis with rapid lung function decline. Stem Cells Transl Med 2019; 9:6-16. [PMID: 31613055 PMCID: PMC6954714 DOI: 10.1002/sctm.19-0037] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 08/18/2019] [Indexed: 12/17/2022] Open
Abstract
Previous phase I studies demonstrated safety and some beneficial effects of mesenchymal stem cells (MSCs) in patients with mild to moderate idiopathic pulmonary fibrosis (IPF). The aim of our study was to evaluate the safety, tolerability, and efficacy of a high cumulative dose of bone marrow MSCs in patients with rapid progressive course of severe to moderate IPF. Twenty patients with forced ventilation capacity (FVC) ≥40% and diffusing capacity of the lung for carbon monoxide (DLCO) ≥20% with a decline of both >10% over the previous 12 months were randomized into two groups: one group received two intravenous doses of allogeneic MSCs (2 × 108 cells) every 3 months, and the second group received a placebo. A total amount of 1.6 × 109 MSCs had been administered to each patient after the study completion. There were no significant adverse effects after administration of MSCs in any patients. In the group of MSC therapy, we observed significantly better improvement for the 6‐minute walk distance in 13 weeks, for DLCO in 26 weeks, and for FVC in 39 weeks compared with placebo. FVC for 12 months in the MSCs therapy group increased by 7.8% from baseline, whereas it declined by 5.9% in the placebo group. We did not find differences between the groups in mortality (two patients died in each group) or any changes in the high‐resolution computed tomography fibrosis score. In patients with IPF and a rapid pulmonary function decline, therapy with high doses of allogeneic MSCs is a safe and promising method to reduce disease progression.
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Affiliation(s)
- Alexander Averyanov
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia.,Pulmonology Scientific Research Institute under Federal Medical-Biologic Agency, Moscow, Russia
| | - Irina Koroleva
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia
| | | | - Veronika Revkova
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia
| | - Victor Lesnyak
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia
| | - Vladimir Kalsin
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia
| | - Olesya Danilevskaya
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia.,Pulmonology Scientific Research Institute under Federal Medical-Biologic Agency, Moscow, Russia
| | - Alexey Nikitin
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia.,Pulmonology Scientific Research Institute under Federal Medical-Biologic Agency, Moscow, Russia
| | - Anna Sotnikova
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia.,Pulmonology Scientific Research Institute under Federal Medical-Biologic Agency, Moscow, Russia
| | - Svetlana Kotova
- Institute for Regenerative Medicine, I. M.Sechenov First Moscow State Medical University, Moscow, Russia.,Semenov Institute of Chemical Physics, Moscow
| | - Vladimir Baklaushev
- Federal Research and Clinical Center of Federal Medical-Biologic Agency, Moscow, Russia.,Pulmonology Scientific Research Institute under Federal Medical-Biologic Agency, Moscow, Russia
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34
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Richeldi L, Crestani B, Azuma A, Kolb M, Selman M, Stansen W, Quaresma M, Stowasser S, Cottin V. Outcomes following decline in forced vital capacity in patients with idiopathic pulmonary fibrosis: Results from the INPULSIS and INPULSIS-ON trials of nintedanib. Respir Med 2019; 156:20-25. [DOI: 10.1016/j.rmed.2019.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 07/12/2019] [Accepted: 08/05/2019] [Indexed: 10/26/2022]
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35
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Maher TM, Stowasser S, Nishioka Y, White ES, Cottin V, Noth I, Selman M, Rohr KB, Michael A, Ittrich C, Diefenbach C, Jenkins RG. Biomarkers of extracellular matrix turnover in patients with idiopathic pulmonary fibrosis given nintedanib (INMARK study): a randomised, placebo-controlled study. THE LANCET RESPIRATORY MEDICINE 2019; 7:771-779. [PMID: 31326319 DOI: 10.1016/s2213-2600(19)30255-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/30/2019] [Accepted: 06/03/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND A hallmark of idiopathic pulmonary fibrosis is the excess accumulation of extracellular matrix in the lungs. Degradation of extracellular matrix generates free-circulating protein fragments called neoepitopes. The aim of the INMARK trial was to investigate changes in neoepitopes as predictors of disease progression in patients with idiopathic pulmonary fibrosis and the effect of nintedanib on these biomarkers. METHODS In this randomised, double-blind, placebo-controlled trial, patients with a diagnosis of idiopathic pulmonary fibrosis within the past 3 years and forced vital capacity (FVC) of 80% predicted or higher were eligible to participate. Patients were recruited from hospitals, private practices, clinical research units, and academic medical centres. Patients were randomly assigned (1:2) with the use of a pseudo-random number generator to receive oral nintedanib 150 mg twice a day or placebo for 12 weeks in a double-blind fashion, followed by open-label nintedanib for 40 weeks. The primary endpoint was the rate of change in C-reactive protein (CRP) degraded by matrix metalloproteinases 1 and 8 (CRPM) from baseline to week 12 in the intention-to-treat population. The trial has been completed and is registered with ClinicalTrials.gov, number NCT02788474, and with the European Clinical Trials Database, number 2015-003148-38. FINDINGS Between June 27, 2016, and May 15, 2017, 347 patients were randomly assigned to the nintedanib group (n=116) or to the placebo group (n=231). One patient from the placebo group was not treated owing to a randomisation error. At baseline, mean FVC was 97·5% (SD 13·5) predicted. In the double-blind period, 116 patients received nintedanib and 230 patients received placebo. The rate of change in CRPM from baseline to week 12 was -2·57 × 10-3 ng/mL/month in the nintedanib group and -1·90 × 10-3 ng/mL/month in the placebo group (between-group difference -0·66 × 10-3 ng/mL/month [95% CI -6·21 × 10-3 to 4·88 × 10-3]; p=0·8146). The adjusted rate of change in FVC over 12 weeks was 5·9 mL in the nintedanib group and -70·2 mL in the placebo group (difference 76·1 mL/12 weeks [31·7 to 120·4]). In patients who received placebo for 12 weeks followed by open-label nintedanib, rising concentrations of CRPM over 12 weeks were associated with disease progression (absolute decline in FVC ≥10% predicted or death) over 52 weeks. In the double-blind period, serious adverse events were reported in eight (7%) patients given nintedanib and 18 (8%) patients given placebo. Grade 3 diarrhoea was reported in two (2%) patients in the nintedanib group and two (1%) patients in the placebo group. No patients had grade 4 diarrhoea. INTERPRETATION In patients with idiopathic pulmonary fibrosis and preserved lung function, treatment with nintedanib versus placebo for 12 weeks did not affect the rate of change in CRPM but was associated with a reduced rate of decline in FVC. These results suggest that change in CRPM is not a marker of response to nintedanib in patients with idiopathic pulmonary fibrosis. FUNDING Boehringer Ingelheim.
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Affiliation(s)
- Toby M Maher
- National Heart and Lung Institute, Imperial College London, London, UK; National Institute for Health Research Clinical Research Facility, Royal Brompton Hospital, London, UK.
| | - Susanne Stowasser
- Boehringer Ingelheim International GmbH, Ingelheim am Rhein, Rhein, Germany
| | - Yasuhiko Nishioka
- Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Eric S White
- University of Michigan, Division of Pulmonary and Critical Care Medicine, Ann Arbor, MI, USA
| | - Vincent Cottin
- National Reference Centre for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, Claude Bernard University Lyon 1, Lyon, France
| | - Imre Noth
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, VI, USA
| | - Moisés Selman
- Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
| | - Klaus B Rohr
- Boehringer Ingelheim International GmbH, Ingelheim am Rhein, Rhein, Germany
| | | | - Carina Ittrich
- Boehringer Ingelheim Pharma GmbH & Co KG, Biberach an der Riss, Germany
| | | | - R Gisli Jenkins
- National Institute for Health Research Respiratory Biomedical Research Centre, City Campus, Nottingham University Hospital, Nottingham, UK
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Kaunisto J, Salomaa ER, Hodgson U, Kaarteenaho R, Kankaanranta H, Koli K, Vahlberg T, Myllärniemi M. Demographics and survival of patients with idiopathic pulmonary fibrosis in the FinnishIPF registry. ERJ Open Res 2019; 5:00170-2018. [PMID: 31304177 PMCID: PMC6612605 DOI: 10.1183/23120541.00170-2018] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 05/14/2019] [Indexed: 11/05/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is characterised by unpredictable disease course and poor survival. After the introduction of novel antifibrotic drugs, the prognosis of patients with IPF is probably changing. FinnishIPF, a nationwide registry of carefully characterised patients, was initiated in Finland in 2011. For the data analysis, we included 453 incident IPF patients diagnosed during 2011-2015. In this study, we describe the demographics and prognosis of these real-life patients. The median overall survival time of registered IPF patients was 4.5 years. The transplant-free survival at 1, 2, 3, 4 and 5 years was 95%, 83%, 70%, 58% and 45%, respectively. Smoking did not have any effect on survival. 117 (26%) patients received pirfenidone or nintedanib. Patients who received ≥6 months of treatment had better survival compared with those who did not receive treatment but this difference disappeared after age adjustment. The transplantation rate was 3%. Although IPF is diagnosed in Finland at a older age, the prognosis is better than expected due to a relatively well preserved lung function at diagnosis. Age and pulmonary function were identified as independent predictors of survival in the entire IPF patient population as well as in patients who had received antifibrotic treatment.
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Affiliation(s)
- Jaana Kaunisto
- Division of Medicine, Dept of Pulmonary Diseases, Turku University Hospital, Turku, Finland.,Dept of Pulmonary Diseases and Clinical Allergology, University of Turku, Turku, Finland
| | - Eija-Riitta Salomaa
- Dept of Pulmonary Diseases and Clinical Allergology, University of Turku, Turku, Finland
| | - Ulla Hodgson
- Heart and Lung Center, Helsinki University Hospital, Helsinki, Finland.,Dept of Medicine, University of Helsinki, Helsinki, Finland
| | - Riitta Kaarteenaho
- Respiratory Medicine, Research Unit of Internal Medicine, University of Oulu, Oulu, Finland.,Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | - Hannu Kankaanranta
- Dept of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland.,Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland
| | - Katri Koli
- Research Programs Unit, Individrug Research Program, Medical Faculty, University of Helsinki, Helsinki, Finland
| | - Tero Vahlberg
- Dept of Biostatistics, University of Turku, Turku, Finland
| | - Marjukka Myllärniemi
- Heart and Lung Center, Helsinki University Hospital, Helsinki, Finland.,Research Programs Unit, Individrug Research Program, Medical Faculty, University of Helsinki, Helsinki, Finland
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Li X, Li X, Liu R. Association Between Pulmonary Vessel-Related Structures and Cryptogenic Fibrosing Alveolitis Using Derived Computed Tomography Among Chinese Patients. Med Sci Monit 2019; 25:2329-2336. [PMID: 30927543 PMCID: PMC6452772 DOI: 10.12659/msm.914120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND The aim of this study was to assess the association between pulmonary vessel-related structures and cryptogenic fibrosing alveolitis (CFA) in a drug trial in a Chinese population using derived computed tomography (dCT) to evaluate functional reduction and survival. MATERIAL AND METHODS Discovery and validation cohorts were chosen separately by fulfilment of drug trial entry criteria, and we enrolled 269 and 292 consecutive patients, respectively. CFA patients who had undergone imaging based on volumetric non-contrast CT at our hospital were subjected to pulmonary vessel-related structure (PVS) measures and dCT to forecast mortality and reduction in reduced forced vital capacity of CFA. RESULTS The best forecaster of survival and reduction in terms of reduced forced vital capacity were found to be the dCT-generated outcomes in terms of PVS scores. Patients having less extensive disease highlighted the dCT outcomes through outperformance of CFA measures. When we used the cohort enhancement device, we found reduction in the requisite sample size of a CFA drug trial by 31% with the use of more than 5.0% dCT PVS score. CONCLUSIONS We found an association between CFA and PVS using dCT and it is far better than the results achieved so far by use of criterion standard measures. Additionally, reduction in the restrictive trial costs was also achieved by using cohort enhancement in a CFA drug trial setting, as PVS scores forced us to decrease the size of required CFA drug trial population by 30%. Interestingly, patients who had to take antifibrotic medication for longer periods had longer survival and less decreases forced vital capacity, as identified by PVS scores.
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Affiliation(s)
- Xiaomin Li
- Department of Radiology, Ankang Central Hospital, Ankang, Shaanxi, P.R. China
| | - Xiaoe Li
- Department of Pharmacy, Ankang Central Hospital, Ankang, Shaanxi, P.R. China
| | - Renfei Liu
- Department of Radiology, Ankang Central Hospital, Ankang, Shaanxi, P.R. China
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Kolb M, Vašáková M. The natural history of progressive fibrosing interstitial lung diseases. Respir Res 2019; 20:57. [PMID: 30871560 PMCID: PMC6417262 DOI: 10.1186/s12931-019-1022-1] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/04/2019] [Indexed: 12/11/2022] Open
Abstract
A proportion of patients with certain types of interstitial lung disease (ILD), including chronic hypersensitivity pneumonitis and ILDs associated with autoimmune diseases, develop a progressive fibrosing phenotype that shows similarities in clinical course to idiopathic pulmonary fibrosis. Irrespective of the clinical diagnosis, these progressive fibrosing ILDs show commonalities in the underlying pathogenetic mechanisms that drive a self-sustaining process of pulmonary fibrosis. The natural history of progressive fibrosing ILDs is characterized by decline in lung function, worsening of symptoms and health-related quality of life, and early mortality. Greater impairment in forced vital capacity or diffusion capacity of the lungs for carbon monoxide, and a greater extent of fibrotic changes on a computed tomography scan, are predictors of mortality in patients with fibrosing ILDs. However, the course of these diseases is heterogenous and cannot accurately be predicted for an individual patient. Data from ongoing clinical trials and patient registries will provide a better understanding of the clinical course and impact of progressive fibrosing ILDs.
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Affiliation(s)
- Martin Kolb
- McMaster University and St. Joseph’s Healthcare, 50 Charlton Avenue East, Hamilton, Ontario L8N 4A6 Canada
| | - Martina Vašáková
- Department of Respiratory Medicine, Thomayer Hospital, Videnska 800, 14059 Prague, Czech Republic
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Sterclova M, Smetakova M, Stehlik L, Skibova J, Vasakova M. Bronchoalveolar lavage cell profiles and proteins concentrations can be used to phenotype extrinsic allergic alveolitis patients. Multidiscip Respir Med 2019; 14:13. [PMID: 30911386 PMCID: PMC6413447 DOI: 10.1186/s40248-019-0175-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/04/2018] [Indexed: 11/10/2022] Open
Abstract
Background Extrinsic allergic alveolitis (EAA) patients form heterogenous group with different clinical manifestation and different prognosis. We aimed to determine how to phenotype distinct EAA subgroups. Predictive role of the bronchoalveolar lavage fluid (BALF) IL-4Rα concentration at the time of diagnosis with regard to the clinical behavior in EAA patients was studied. Methods Concentrations of MMP-7, IL-4Rα, TNF-α, and PAR-2 were measured in the BALF od 71 EAA patients at the time of diagnosis. Lung functions and outcome data were assessed at 12 months after the diagnosis. Correlations between the BALF protein concentration, cell profile, lung functions and patient outcome were determined. Results We found positive correlations between BALF IL-4Rα concentration and BALF eosinophils (p = 0,006), negative correlation between IL-4Rα BALF concentration and diffusing capacity (DLco) (p = 0,003), negative correlation between IL-4Rα BALF concentration and forced vital capacity (FVC) (p = 0,004) and negative correlation between IL-4Rα concentration and BALF lymphocytes (p = 0,04). The BALF concentration of IL-4Rα was significantly higher in acute exacerbation patients (p = 0,0032) and in patients progressing despite corticosteroid treatment (p = 0,04). We observed a positive correlation between MMP-7 BALF concentration and the BALF lymphocytes (p = 0.05), negative correlation between the PAR-2 BALF concentration and DLco (p = 0.04) and a negative correlation between the BALF TNF-α concentration and DLco (p = 0.03). Conclusions Specific subgroup of EAA patients with more severe functional impact, distinct BALF cell profile and higher IL-4Rα BALF concentration can be differentiated. Correlations between the BALF concentrations of PAR-2, MMP-7 and TNF-α with clinical parameters may reflect the role of inflammation in the pathogenesis of EAA.
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Affiliation(s)
- Martina Sterclova
- 1Department of Respiratory Medicine, Thomayer Hospital, Videnska 800, 140 00 Prague 4, Czech Republic
| | - Magdalena Smetakova
- 2Department of Pathology and Molecular Medicine, Thomayer Hospital, Videnska 800, 140 00 Prague 4, Czech Republic
| | - Ludek Stehlik
- 1Department of Respiratory Medicine, Thomayer Hospital, Videnska 800, 140 00 Prague 4, Czech Republic
| | - Jelena Skibova
- 3Department of Statistics, Institute of Clinical and Experimental Medicine, Videnska 1958/9, 140 00 Prague 4, Czech Republic
| | - Martina Vasakova
- 1Department of Respiratory Medicine, Thomayer Hospital, Videnska 800, 140 00 Prague 4, Czech Republic
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40
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Moua T, Ryu JH. Obstacles to early treatment of idiopathic pulmonary fibrosis: current perspectives. Ther Clin Risk Manag 2019; 15:73-81. [PMID: 30655671 PMCID: PMC6322512 DOI: 10.2147/tcrm.s160248] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Idiopathic pulmonary fibrosis is a progressive and fatal fibrotic lung disease which has seen new opportunity for drug treatment in the last several years with the approval of nintedanib and pirfenidone, two antifibrotic agents aimed at slowing decline in lung function as defined by FVC on pulmonary function testing. Despite these promising effects, delays in drug initiation have been reported undermining the premise that earlier drug initiation may sustain lung function and prolong survival. This review explores obstacles to earlier treatment, inclusive of defining so-called early idiopathic pulmonary fibrosis, difficulties in achieving a confident diagnosis in that setting, and uncertainties regarding drug-related benefits among specific patient subgroups such as those with no symptoms or advanced disease at presentation. Goals of therapy balanced with the burdens associated with antifibrotic drug therapy are negotiated on an individual basis. We review the evidence for and against earlier initiation of antifibrotic drug therapy along with its role in patient-centered outcomes.
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Affiliation(s)
- Teng Moua
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester MN, USA,
| | - Jay H Ryu
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester MN, USA,
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Lee JS, Collard HR. Acute Exacerbation of Idiopathic Pulmonary Fibrosis. Respir Med 2019. [PMCID: PMC7122232 DOI: 10.1007/978-3-319-99975-3_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Acute exacerbation (AEx) of idiopathic pulmonary fibrosis (IPF) is a clinically important complication of IPF that carries a high morbidity and mortality. In the last decade we have learned much about this event, but there are many remaining questions: What is it? Why does it happen? How can we prevent it? How can we treat it? This chapter attempts to summarize and update our current understanding of the epidemiology, etiology, and management of acute exacerbation of IPF and point out areas where additional data are needed.
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Outcomes with newly proposed classification of acute respiratory deterioration in idiopathic pulmonary fibrosis. Respir Med 2018; 143:147-152. [DOI: 10.1016/j.rmed.2018.09.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 08/20/2018] [Accepted: 09/12/2018] [Indexed: 11/22/2022]
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Nikaido T, Tanino Y, Wang X, Sato Y, Togawa R, Kikuchi M, Misa K, Saito K, Fukuhara N, Kawamata T, Rikimaru M, Umeda T, Morimoto J, Koizumi T, Suzuki Y, Hirai K, Uematsu M, Minemura H, Fukuhara A, Sato S, Saito J, Yokouchi H, Kanazawa K, Shibata Y. Serum decorin is a potential prognostic biomarker in patients with acute exacerbation of idiopathic pulmonary fibrosis. J Thorac Dis 2018; 10:5346-5358. [PMID: 30416782 DOI: 10.21037/jtd.2018.08.60] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Background Decorin is a small leucine-rich repeat proteoglycan that plays a critical role in collagen fibrillogenesis, and regulates inflammation, wound healing and angiogenesis. In idiopathic pulmonary fibrosis (IPF), decorin is expressed in fibrotic lesions; furthermore, intratracheal gene transfer of decorin has been demonstrated to inhibit bleomycin-induced pulmonary fibrosis. Although these results suggest the critical role of decorin in pulmonary fibrosis, the role of decorin in the acute exacerbation of idiopathic interstitial pneumonia (AE-IIP) has not been clarified in detail. Thus, the goal of this study was to determine the role of decorin in AE-IIP. Methods We retrospectively analyzed AE-IIP patients who had been admitted to our hospital. First, serum decorin levels were compared among patients with AE-IIP, patients with stable idiopathic interstitial pneumonia (SD-IIP), and healthy subjects. Next, the relationship between serum decorin levels and clinical parameters was analyzed in AE-IIP patients. Finally, the association between serum decorin levels and prognosis was evaluated in AE-IIP patients. IIP was divided into IPF and non-IPF, according to the published guidelines. Results The serum decorin levels of AE-IIP patients were significantly lower than those of both healthy subjects and SD-IIP patients. Serum decorin levels were not related with the clinical parameters and prognosis, when all IIP patients were analyzed. In IPF patients, serum decorin levels had a significant correlation with oxygenation, and IPF patients with low serum decorin levels had a significantly higher survival rate than those with high serum decorin levels. Conclusions Serum decorin levels are a potential prognostic biomarker in AE-IPF.
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Affiliation(s)
- Takefumi Nikaido
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yoshinori Tanino
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Xintao Wang
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yuki Sato
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Ryuichi Togawa
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Masami Kikuchi
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kenichi Misa
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kazue Saito
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Naoko Fukuhara
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Takaya Kawamata
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Mami Rikimaru
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Takashi Umeda
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Julia Morimoto
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tatsuhiko Koizumi
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yasuhito Suzuki
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kenichiro Hirai
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Manabu Uematsu
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hiroyuki Minemura
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Atsuro Fukuhara
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Suguru Sato
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Junpei Saito
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hiroshi Yokouchi
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kenya Kanazawa
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yoko Shibata
- Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
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Ishii H, Kushima H, Kinoshita Y, Fujita M, Watanabe K. The serum KL-6 levels in untreated idiopathic pulmonary fibrosis can naturally decline in association with disease progression. CLINICAL RESPIRATORY JOURNAL 2018; 12:2411-2418. [PMID: 30015394 DOI: 10.1111/crj.12946] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 06/20/2018] [Accepted: 07/11/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Serum KL-6 is known to be a useful biomarker for the diagnosis and assessment of the disease activity in idiopathic pulmonary fibrosis (IPF). However, some patients with untreated IPF present with a serial decline in their serum KL-6 levels, despite showing clinical progression. OBJECTIVES The aim of the present study was to evaluate the association between the time course of the serum KL-6 levels and the clinical course of patients with untreated IPF. METHODS We conducted a retrospective study of 59 patients who met the diagnostic criteria for IPF, who regularly underwent laboratory tests, including the measurement of KL-6 and pulmonary function tests, and who were untreated during the follow-up period. RESULTS The rates of decline in comparison to the baseline FVC values were comparable between survivors (n = 30) and non-survivors (n = 29); however, the rates of change in comparison to the baseline KL-6 levels were heterogeneous in all subjects, and the KL-6 levels of the non-survivors were observed to decline significantly more frequently in comparison to the survivors (P = .001). Patients with a higher breathlessness scale, lower pulmonary functions and higher levels of baseline KL-6 were predisposed to demonstrate a decline in the serum KL-6 levels during the untreated period. CONCLUSIONS A reduction in the serum KL-6 levels of patients with untreated IPF may not mean that the disease activity has subsided. Serum KL-6 levels can naturally decline in association with disease progression.
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Affiliation(s)
- Hiroshi Ishii
- Department of Respiratory Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Hisako Kushima
- Department of Respiratory Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Yoshiaki Kinoshita
- Department of Respiratory Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Masaki Fujita
- Department of Respiratory Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Kentaro Watanabe
- Department of Respiratory Medicine, Fukuoka University Hospital, Fukuoka, Japan
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Saito S, Lasky JA, Hagiwara K, Kondoh Y. Ethnic differences in idiopathic pulmonary fibrosis: The Japanese perspective. Respir Investig 2018; 56:375-383. [PMID: 30061050 DOI: 10.1016/j.resinv.2018.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 05/03/2018] [Accepted: 06/12/2018] [Indexed: 01/20/2023]
Abstract
Epidemiologic data suggest that there are ethnic differences between Japanese and other populations with regard to the important clinical aspects of interstitial lung disease (ILD), such as the cause of death and prognostic factors in patients with idiopathic pulmonary fibrosis (IPF). Acute exacerbation (AE) of IPF may be more common in Japan than in the rest of the world, although this suggestion remains controversial. Moreover, AE of ILD induced by gefitinib may also be more common in Japan, indicating that Japanese patients have a genetic vulnerability or susceptibility to AE. Recent large-scale studies are starting to reveal ethnic differences in the genetics of ILD, including the prevalence of the genetic polymorphisms associated with the clinical course of ILD. We anticipate that ongoing and upcoming research regarding ethnic differences will continue to provide valuable insights into the pathogenesis and management of ILD.
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Affiliation(s)
- Shigeki Saito
- Department of Medicine, Section of Pulmonary Diseases, Critical Care and Environmental Medicine, Tulane University Health Science Center, New Orleans, LA, USA.
| | - Joseph A Lasky
- Department of Medicine, Section of Pulmonary Diseases, Critical Care and Environmental Medicine, Tulane University Health Science Center, New Orleans, LA, USA.
| | - Koichi Hagiwara
- Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - Yasuhiro Kondoh
- Nagoya University School of Medicine, Department of Respiratory Medicine and Allergy, Tosei General Hospital, 160 Nishioiwake-cho, Seto, Aichi 489-8642, Japan.
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Villarroel-Bustamante K, Jérez-Mayorga D, Campos-Jara C, Delgado-Floody P, Guzmán-Guzmán IP. Función pulmonar, capacidad funcional y calidad de vida en pacientes con fibrosis pulmonar idiopática. Revisión de la literatura. REVISTA DE LA FACULTAD DE MEDICINA 2018. [DOI: 10.15446/revfacmed.v66n3.63970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introducción. La fibrosis pulmonar idiopática (FPI) es un tipo de enfermedad intersticial, crónica y progresiva que suele manifestarse con disnea y deterioro progresivo de la tolerancia al ejercicio y a las actividades de la vida diaria, llegando a comprometer el nivel psicológico y la interacción social.Objetivos. Seleccionar y sintetizar información acerca de la respuesta de la capacidad funcional, la función pulmonar y la calidad de vida relacionada con la salud en pacientes con FPI luego de ser sometidos a un programa de rehabilitación pulmonar.Materiales y métodos. Revisión de la literatura desde 2000 a 2016, utilizando las bases de datos PubMed y ScienceDirect.Resultados. Se seleccionaron 10 ensayos clínicos randomizados. Se observó tendencia al aumento significativo en la distancia recorrida en test de marcha de 6 minutos. Respecto a la función pulmonar, los resultados variaron entre las poblaciones estudiadas. En la calidad de vida relacionada con la salud se observó mejora en los pacientes sometidos a rehabilitación, pero los niveles de disnea mostraron resultados discordantes.Conclusión. Se evidenciaron beneficios en términos de capacidad funcional y calidad de vida relacionada con la salud, pero los estudios siguen siendo escasos y con poblaciones pequeñas; los efectos de los programas de rehabilitación no se mantienen a los 6 meses de evaluación post-entrenamiento.
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Azadeh N, Moua T, Baqir M, Ryu JH. Treatment of acute exacerbations of interstitial lung disease. Expert Rev Respir Med 2018; 12:309-313. [PMID: 29486130 DOI: 10.1080/17476348.2018.1446831] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Interstitial lung diseases (ILD) include a broad range of diffuse parenchymal lung disorders of known and unknown etiologies. Patients with ILD can experience acute exacerbations (AE) which are associated with extremely high morbidity and mortality. Little is known about the etiology of AEs, and whether inciting triggers (such as infection) result in an aberrant inflammatory response in a predisposed host. Areas covered: The majority of data regarding AE-ILD comes from the idiopathic pulmonary fibrosis (IPF) population and is extrapolated to other forms of ILD. For the purposes of this review we have summarized the current literature regarding AE of IPF, and when available have included data from AE of other ILDs. Expert commentary: Therapeutic options for AE are limited without definitive treatments available, and the prognosis is often poor. Treatment is mainly based on correcting hypoxemia, looking for reversible etiologies of respiratory decline, and palliation of symptoms. Overall little is known about the pathogenesis of ILDs and AE-ILD, more research is needed in hopes of identifying better treatment options.
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Affiliation(s)
- Natalya Azadeh
- a Division of Pulmonary and Critical Care Medicine , Mayo Clinic , Rochester , MN , USA
| | - Teng Moua
- a Division of Pulmonary and Critical Care Medicine , Mayo Clinic , Rochester , MN , USA
| | - Misbah Baqir
- a Division of Pulmonary and Critical Care Medicine , Mayo Clinic , Rochester , MN , USA
| | - Jay H Ryu
- a Division of Pulmonary and Critical Care Medicine , Mayo Clinic , Rochester , MN , USA
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Masuda T, Hirano C, Horimasu Y, Nakashima T, Miyamoto S, Iwamoto H, Ohshimo S, Fujitaka K, Hamada H, Hattori N. The extent of ground-glass attenuation is a risk factor of chemotherapy-related exacerbation of interstitial lung disease in patients with non-small cell lung cancer. Cancer Chemother Pharmacol 2017; 81:131-139. [PMID: 29143072 DOI: 10.1007/s00280-017-3476-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 11/07/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Chemotherapy-related acute exacerbation (AE) of interstitial lung disease (ILD) is observed in certain patients with non-small cell lung cancer (NSCLC) who have ILD. Although the prognosis of AE-ILD is extremely poor, there are no established risk factors for its occurrence. Therefore, we retrospectively investigated whether high-resolution computed tomography (HRCT) findings could identify risk factors for AE-ILD. MATERIALS AND METHODS Between January 2005 and December 2016, 35 patients with NSCLC who received chemotherapy at Hiroshima University Hospital and were diagnosed with ILD on HRCT were enrolled. The extent of ground-glass attenuation (GGA), reticulation, honeycomb appearance, and emphysema, as well as the presence of micronodules, traction bronchiectasis, and consolidation were evaluated in five levels of the lung bilaterally. The HRCT scores of GGA, reticulation, honeycomb appearance, and emphysema were determined by the following formula: 100 × sum of the extent of the HRCT findings/lung area. RESULTS Thirty-five patients underwent various first- to fifth-line chemotherapy regimens. Nine patients (25.7%) developed AE-ILD. The median HRCT scores of GGA and reticulation were significantly higher in patients with AE-ILD than in those without. On univariate analysis, a GGA area score ≥ 24.8, reticulation area score ≥ 19.5, and KL-6 level ≥ 946 U/mL were significant risk factors. Multivariate logistic analysis revealed that only a GGA area score ≥ 24.8 was an independent risk factor of AE-ILD. CONCLUSIONS The GGA area on HRCT is a risk factor for chemotherapy-related AE-ILD. Therefore, this parameter can be used to predict the risk of AE-ILD before administering chemotherapy.
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Affiliation(s)
- Takeshi Masuda
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Chihiro Hirano
- Hiroshima Atomic Bomb Casualty Council, 3-8-6 Sendamachi, Naka-ku, Hiroshima, 730-0052, Japan
| | - Yasushi Horimasu
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Taku Nakashima
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Shintarou Miyamoto
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Hiroshi Iwamoto
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Shinichiro Ohshimo
- Department of Emergency and Critical Care Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kazunori Fujitaka
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Hironobu Hamada
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Noboru Hattori
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
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Leuschner G, Behr J. Acute Exacerbation in Interstitial Lung Disease. Front Med (Lausanne) 2017; 4:176. [PMID: 29109947 PMCID: PMC5660065 DOI: 10.3389/fmed.2017.00176] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/02/2017] [Indexed: 12/13/2022] Open
Abstract
Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) has been defined as an acute, clinically significant deterioration that develops within less than 1 month without obvious clinical cause like fluid overload, left heart failure, or pulmonary embolism. Pathophysiologically, damage of the alveoli is the predominant feature of AE-IPF which manifests histopathologically as diffuse alveolar damage and radiologically as diffuse, bilateral ground-glass opacification on high-resolution computed tomography. A growing body of literature now focuses on acute exacerbations of interstitial lung disease (AE-ILD) other than idiopathic pulmonary fibrosis. Based on a shared pathophysiology it is generally accepted that AE-ILD can affect all patients with interstitial lung disease (ILD) but apparently occurs more frequently in patients with an underlying usual interstitial pneumonia pattern. The etiology of AE-ILD is not fully understood, but there are distinct risk factors and triggers like infection, mechanical stress, and microaspiration. In general, AE-ILD has a poor prognosis and is associated with a high mortality within 6–12 months. Although there is a lack of evidence based data, in clinical practice, AE-ILD is often treated with a high dose corticosteroid therapy and antibiotics. This article aims to provide a summary of the clinical features, diagnosis, management, and prognosis of AE-ILD as well as an update on the current developments in the field.
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Affiliation(s)
- Gabriela Leuschner
- Department of Internal Medicine V, Ludwig Maximilians University, Comprehensive Pneumology Center (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Jürgen Behr
- Department of Internal Medicine V, Ludwig Maximilians University, Comprehensive Pneumology Center (CPC-M), German Center for Lung Research (DZL), Munich, Germany.,Asklepios Fachkliniken München-Gauting, Gauting, Germany
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