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Mohan A, Lugogo NL. Mild asthma: Lessons learned and remaining questions. Respir Med 2023:107326. [PMID: 37328016 DOI: 10.1016/j.rmed.2023.107326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 05/19/2023] [Accepted: 06/08/2023] [Indexed: 06/18/2023]
Abstract
Patients living with mild disease represent the largest proportion of asthma patients. There are significant challenges in proposing a definition that would best describe these patients, while also accurately identifying at-risk individuals. Current literature suggests considerable inflammatory and clinical heterogeneity within this group. Research has shown that these patients are at risk of poor control, exacerbations, lung function decline, and death. Despite conflicting data on its prevalence, eosinophilic inflammation appears to be a predictor of poorer outcomes in mild asthma. There is an immediate need to better understand phenotypic clusters in mild asthma. It is also important to understand factors that influence disease progression and remission, as it is evident that both vary in mild asthma. Guided by robust literature that supports inhaled corticosteroid-based strategies over short-acting beta-agonist (SABA) reliant regimens, the management of these patients has evolved considerably. Unfortunately, SABA use remains high in clinical practice despite strong advocacy from the Global Initiative for Asthma. Future mild asthma research should explore the role of biomarkers, develop prediction tools based on composite risk scores, and explore targeted therapies at least for at-risk individuals.
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Affiliation(s)
- Arjun Mohan
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, USA.
| | - Njira L Lugogo
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, USA
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2
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Mohan A, Lugogo NL, Hanania NA, Reddel HK, Akuthota P, O’Byrne PM, Guilbert T, Papi A, Price D, Jenkins CR, Kraft M, Bacharier LB, Boulet LP, Yawn BP, Pleasants R, Lazarus SC, Beasley R, Gauvreau G, Israel E, Schneider-Futschik EK, Yorgancioglu A, Martinez F, Moore W, Sumino K. Questions in Mild Asthma: An Official American Thoracic Society Research Statement. Am J Respir Crit Care Med 2023; 207:e77-e96. [PMID: 37260227 PMCID: PMC10263130 DOI: 10.1164/rccm.202304-0642st] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
Background: Patients with mild asthma are believed to represent the majority of patients with asthma. Disease-associated risks such as exacerbations, lung function decline, and death have been understudied in this patient population. There have been no prior efforts from major societies to describe research needs in mild asthma. Methods: A multidisciplinary, diverse group of 24 international experts reviewed the literature, identified knowledge gaps, and provided research recommendations relating to mild asthma definition, pathophysiology, and management across all age groups. Research needs were also investigated from a patient perspective, generated in conjunction with patients with asthma, caregivers, and stakeholders. Of note, this project is not a systematic review of the evidence and is not a clinical practice guideline. Results: There are multiple unmet needs in research on mild asthma driven by large knowledge gaps in all areas. Specifically, there is an immediate need for a robust mild asthma definition and an improved understanding of its pathophysiology and management strategies across all age groups. Future research must factor in patient perspectives. Conclusions: Despite significant advances in severe asthma, there remain innumerable research areas requiring urgent attention in mild asthma. An important first step is to determine a better definition that will accurately reflect the heterogeneity and risks noted in this group. This research statement highlights the topics of research that are of the highest priority. Furthermore, it firmly advocates the need for engagement with patient groups and for more support for research in this field.
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Niimi A, Fukunaga K, Taniguchi M, Nakamura Y, Tagaya E, Horiguchi T, Yokoyama A, Yamaguchi M, Nagata M. Executive summary: Japanese guidelines for adult asthma (JGL) 2021. Allergol Int 2023; 72:207-226. [PMID: 36959028 DOI: 10.1016/j.alit.2023.02.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 03/25/2023] Open
Abstract
Asthma is characterized by chronic airway inflammation, variable airway narrowing, and sensory nerve irritation, which manifest as wheezing, dyspnea, chest tightness, and cough. Longstanding asthma may result in airway remodeling and become intractable. Despite the increased prevalence of asthma in adults, asthma-associated deaths have decreased in Japan (0.94 per 100,000 people in 2020). The goals of asthma treatment include the control of symptoms and reduction of future risks. A functional partnership between physicians and patients is indispensable for achieving these goals. Long-term management with medications and the elimination of triggers and risk factors are fundamental to asthma treatment. Asthma is managed via four steps of pharmacotherapy ("controllers"), ranging from mild to intensive treatments, depending on disease severity; each step involves daily administration of an inhaled corticosteroid, which varies from low to high dosage. Long-acting β2 agonists, leukotriene receptor antagonists, sustained-release theophylline, and long-acting muscarinic antagonists are recommended as add-on drugs. Allergen immunotherapy is a new option that is employed as a controller treatment. Further, as of 2021, anti-IgE antibody, anti-IL-5 and anti-IL-5 receptor α-chain antibodies, and anti-IL-4 receptor α-chain antibodies are available for the treatment of severe asthma. Bronchial thermoplasty can be performed for asthma treatment, and its long-term efficacy has been reported. Algorithms for their usage have been revised. Comorbidities, such as allergic rhinitis, chronic rhinosinusitis, chronic obstructive pulmonary disease, and aspirin-exacerbated respiratory disease, should also be considered during the treatment of chronic asthma. Depending on the severity of episodes, inhaled short-acting β2 agonists, systemic corticosteroids, short-acting muscarinic antagonists, oxygen therapy, and other approaches are used as needed ("relievers") during exacerbation.
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Affiliation(s)
- Akio Niimi
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - Koichi Fukunaga
- Pulmonary Division, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masami Taniguchi
- Center for Immunology and Allergology, Shonan Kamakura General Hospital, Kanagawa, Japan
| | - Yoichi Nakamura
- Medical Center for Allergic and Immune Diseases, Yokohama City Minato Red Cross Hospital, Yokohama, Japan
| | - Etsuko Tagaya
- Department of Respiratory Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Takahiko Horiguchi
- Department of Respiratory Medicine, Toyota Regional Medical Center, Toyota, Japan
| | - Akihito Yokoyama
- Department of Respiratory Medicine and Allergology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Masao Yamaguchi
- Division of Respiratory Medicine, Third Department of Medicine, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Makoto Nagata
- Department of Respiratory Medicine, Saitama Medical University, Saitama, Japan; Allergy Center, Saitama Medical University Hospital, Saitama Medical University, Saitama, Japan
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Bai L, Xu Y, Pan T, Zhang Y, Zhou X, Xu J. Leukotriene Receptor Antagonists and Risk of Neuropsychiatric Entities: A Meta-Analysis of Observational Studies. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:844-854.e9. [PMID: 36473625 DOI: 10.1016/j.jaip.2022.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 12/07/2022]
Abstract
BACKGROUND Leukotriene receptor antagonists (LTRAs) are commonly prescribed to patients with allergic diseases. Several case reports and pharmacovigilance studies have indicated that LTRAs might increase the risk of neuropsychiatric (NP) entities. However, the results are mixed in observational studies. Thus, the association between LTRAs and NP entities remains controversial. OBJECTIVE To quantitatively evaluate the NP risk with LTRAs based on current observational studies to provide a reference for clinical practice. METHODS We systematically reviewed the literature in Medline, Embase, Web of Science, Cochrane Library, Scopus, and PsycINFO. A meta-analysis of observational studies that investigated the association between LTRA use and the risk of NP entities was performed. Odds ratios (OR) with 95% confidence intervals (CI) were used to measure the effect; heterogeneity was evaluated using I-squared (I2) statistics. Subgroup and sensitivity analyses were conducted to assess bias. RESULTS Eleven articles were included in the primary analysis. No significant association was found between LTRA use and NP entities (OR: 1.08, 95% CI: 0.93-1.24, I2 = 93.7%). In patients with allergic rhinitis (AR), a mildly increased NP risk was found (OR: 1.099, 95% CI: 1.004-1.202). The association between LTRA use and NP entities was not significant in patients with asthma (OR: 1.06, 95% CI: 0.90-1.26). LTRAs increased the risk of NP entities in a single study using data from an asthma clinic (OR: 9.00, 95% CI: 1.20-69.50), but not in studies from databases (OR: 1.07, 95% CI: 0.93-1.23). CONCLUSION At the population level, LTRAs and NP entities were unrelated. However, the association may exist in particular groups (eg, patients with AR or NP history). Subject-specific studies are required to further examine the relationship between LTRAs and NP entities and identify the underlying mechanisms.
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Affiliation(s)
- Le Bai
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yong Xu
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tingyu Pan
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ying Zhang
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xianmei Zhou
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China; Department of Respiratory Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China.
| | - Jie Xu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China; Department of Respiratory Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
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5
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Louis G, Pétré B, Schleich F, Zahrei HN, Donneau AF, Henket M, Paulus V, Guissard F, Guillaume M, Louis R. Predictors of change in asthma-related quality of life: a longitudinal real-life study in adult asthmatics. Qual Life Res 2023; 32:1507-1520. [PMID: 36595128 PMCID: PMC10123047 DOI: 10.1007/s11136-022-03339-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2022] [Indexed: 01/04/2023]
Abstract
PURPOSE Asthma negatively impacts health-related quality of life (HRQL). The objective is to investigate the longitudinal relationship between HRQL in asthma and disease control, demographic and clinical objective parameters in an adult population in real-life settings. METHODS We conducted a longitudinal study on adult asthmatics recruited from Liege University Hospital Asthma Clinic (Belgium) between 2011 and 2019. We selected those who had two visits and completed two patient-reported outcome measures (PROMs), the asthma control test (ACT) and the mini asthma quality of life questionnaire (AQLQ) (n = 290). AQLQ was the dependent variable. Demographic, functional and inflammatory characteristics, asthma control, and exacerbations were the independent variables. We applied generalized linear mixed models to identify the factors associated with change in AQLQ and its dimensions. RESULTS Median (IQR) time interval between the two visits was 7 (5-19) months. Overall, median (IQR) global AQLQ increased from 4.1 (3-5.1) to 4.6 (3.4-5.9) (p < 0.0001). All AQLQ dimensions significantly improved, apart the environmental one. AQLQ improved in patients who had both step-up and step-down pharmacological treatment as well as in patients reporting no change between the two visits. The fitted models indicated that change in ACT was the main predictor of change in AQLQ (p < 0.0001). A rise in 3 units in ACT predicted an improvement of 0.5 AQLQ (AUC-ROC = 0.85; p < 0.0001). Change in BMI inversely impacted global AQLQ (p < 0.01) and its activity dimension (p < 0.0001). CONCLUSION Asthma control and BMI are key predictors of asthma quality of life acting in an opposite direction. AQLQ may improve without step-up in the pharmacological treatment.
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Affiliation(s)
- Gilles Louis
- Department of Public Health, University of Liège, Liège, Belgium.
| | - Benoit Pétré
- Department of Public Health, University of Liège, Liège, Belgium
| | - Florence Schleich
- Department of Pneumology, University of Liège, GIGAI3, Liège, Belgium
| | | | | | - Monique Henket
- Department of Pneumology, University of Liège, GIGAI3, Liège, Belgium
| | - Virginie Paulus
- Department of Pneumology, University of Liège, GIGAI3, Liège, Belgium
| | | | | | - Renaud Louis
- Department of Pneumology, University of Liège, GIGAI3, Liège, Belgium
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Thomson NC, Polosa R, Sin DD. Cigarette Smoking and Asthma. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2022; 10:2783-2797. [PMID: 35533997 DOI: 10.1016/j.jaip.2022.04.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 11/29/2022]
Abstract
Globally, around half the adult asthma population are current or former cigarette smokers. Cigarette smoking and asthma interact to induce an "asthma-smoking phenotype(s)," which has important implications for diagnosis, pathogenic mechanisms, and management. The lack of progress in understanding the effects of smoking on adults with asthma is due in part to their exclusion from most investigative studies and large clinical trials. In this review, we summarize the adverse clinical outcomes associated with cigarette smoking in asthma, highlight challenges in diagnosing asthma among cigarette smokers with chronic respiratory symptoms, particularly in older individuals with a long-standing smoking history, and review pathogenic mechanisms involving smoking- and asthma-related airway inflammation, tissue remodeling, corticosteroid insensitivity, and low-grade systemic inflammation. We discuss the key components of management including the importance of smoking cessation strategies, evidence for the effectiveness of the Global Initiative for Asthma recommendations on treatment in cigarette smokers, and the role of treatable traits such as type 2 eosinophilic airway inflammation. Lastly, we provide an algorithm to aid clinicians to manage current and former smokers with asthma. In the future, controlled and pragmatic trials in real-world populations should include cigarette smokers with asthma to provide an evidence base for treatment recommendations.
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Affiliation(s)
- Neil C Thomson
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, United Kingdom.
| | - Riccardo Polosa
- Department of Clinical & Experimental Medicine, University of Catania, Catania, Italy; Centre for the Prevention and Treatment of Tobacco Addiction (CPCT), Teaching Hospital "Policlinico-V. Emanuele", University of Catania, Catania, Italy; Center of Excellence for the Acceleration of HArm Reduction (CoEHAR), University of Catania, Catania, Italy
| | - Don D Sin
- Division of Respirology, Department of Medicine, Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada
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Liang Z, Luo Z, Chen J, Li B, Li L, Shen C. Bavachin inhibits IL-4 expression by downregulating STAT6 phosphorylation and GATA-3 expression and ameliorates asthma inflammation in an animal model. Immunobiology 2022; 227:152182. [DOI: 10.1016/j.imbio.2022.152182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 01/17/2022] [Accepted: 01/22/2022] [Indexed: 11/05/2022]
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Shang W, Wang G, Wang Y, Han D. The safety of long-term use of inhaled corticosteroids in patients with asthma: A systematic review and meta-analysis. Clin Immunol 2022; 236:108960. [PMID: 35218965 DOI: 10.1016/j.clim.2022.108960] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/19/2022] [Accepted: 02/19/2022] [Indexed: 12/20/2022]
Abstract
PURPOSE This systematic review and meta-analysis was performed to determine the safety of long-term use of ICS in patients with asthma. METHODS A systematic search was made of PubMed, Embase, Web of Science, Cochrane Library, and clinicaltrials.gov, without language restrictions. Randomized controlled trials (RCTs) on treatment of asthma with ICS, compared with non-ICS treatment (placebo or other active drugs), were reviewed. RESULTS Eighty-six RCTs (enrolling 51,538 participants) met the inclusion criteria. Oral or oropharyngeal candidiasis (RR 2.58, 95% CI 2.00 to 3.33), and dysphonia/hoarseness (RR 1.56, 95% CI 1.31 to 1.85) were less frequent in the control group. There was no statistically significant difference in the risk of upper respiratory tract infection, lower respiratory tract infection, influenza, decline in bone mineral density, and fractures between the two groups. CONCLUSION In addition to the mild local adverse events, the long-term use of ICS was safe in patients with asthma.
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Affiliation(s)
- Wenli Shang
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, China
| | - Guizuo Wang
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, China
| | - Yan Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Dong Han
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, China.
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Sokolowska M, Rovati GE, Diamant Z, Untersmayr E, Schwarze J, Lukasik Z, Sava F, Angelina A, Palomares O, Akdis C, O'Mahony L, Jesenak M, Pfaar O, Torres MJ, Sanak M, Dahlén S, Woszczek G. Effects of non-steroidal anti-inflammatory drugs and other eicosanoid pathway modifiers on antiviral and allergic responses: EAACI task force on eicosanoids consensus report in times of COVID-19. Allergy 2022; 77:2337-2354. [PMID: 35174512 PMCID: PMC9111413 DOI: 10.1111/all.15258] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/25/2022] [Accepted: 02/11/2022] [Indexed: 11/29/2022]
Abstract
Non‐steroidal anti‐inflammatory drugs (NSAIDs) and other eicosanoid pathway modifiers are among the most ubiquitously used medications in the general population. Their broad anti‐inflammatory, antipyretic, and analgesic effects are applied against symptoms of respiratory infections, including SARS‐CoV‐2, as well as in other acute and chronic inflammatory diseases that often coexist with allergy and asthma. However, the current pandemic of COVID‐19 also revealed the gaps in our understanding of their mechanism of action, selectivity, and interactions not only during viral infections and inflammation, but also in asthma exacerbations, uncontrolled allergic inflammation, and NSAIDs‐exacerbated respiratory disease (NERD). In this context, the consensus report summarizes currently available knowledge, novel discoveries, and controversies regarding the use of NSAIDs in COVID‐19, and the role of NSAIDs in asthma and viral asthma exacerbations. We also describe here novel mechanisms of action of leukotriene receptor antagonists (LTRAs), outline how to predict responses to LTRA therapy and discuss a potential role of LTRA therapy in COVID‐19 treatment. Moreover, we discuss interactions of novel T2 biologicals and other eicosanoid pathway modifiers on the horizon, such as prostaglandin D2 antagonists and cannabinoids, with eicosanoid pathways, in context of viral infections and exacerbations of asthma and allergic diseases. Finally, we identify and summarize the major knowledge gaps and unmet needs in current eicosanoid research.
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Affiliation(s)
- Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne ‐ Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
| | - G Enrico Rovati
- Department of Pharmaceutical Sciences Section of Pharmacology and Biosciences University of Milan Milano Italy
| | - Zuzana Diamant
- Department of Respiratory Medicine and Allergology Skane University Hospital Lund Sweden
- Department Microbiology Immunology and Transplantation Ku Leuven, Catholic University of Leuven Belgium
- Department of Respiratory Medicine First Faculty of Medicine Charles University and Thomayer Hospital Prague Czech Republic
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research Center for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Jürgen Schwarze
- Child Life and Health and Centre for Inflammation Research The University of Edinburgh Edinburgh UK
| | - Zuzanna Lukasik
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- VIB Center for Inflammation Research Ghent University Ghent Belgium
| | - Florentina Sava
- London North Genomic Laboratory Hub Great Ormond Street Hospital for Children NHS Foundation Trust London UK
| | - Alba Angelina
- Department of Biochemistry and Molecular Biology School of Chemistry Complutense University Madrid Spain
| | - Oscar Palomares
- Department of Biochemistry and Molecular Biology School of Chemistry Complutense University Madrid Spain
| | - Cezmi Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne ‐ Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
| | - Liam O'Mahony
- Departments of Medicine and Microbiology APC Microbiome IrelandUniversity College Cork Cork Ireland
| | - Milos Jesenak
- Department of Pulmonology and Phthisiology Department of Allergology and Clinical Immunology Department of Pediatrics Jessenius Faculty of Medicine in Martin Comenius University in BratislavaUniversity Teaching Hospital in Martin Slovakia
| | - Oliver Pfaar
- Department of Otorhinolaryngology, Head and Neck Surgery Section of Rhinology and Allergy University Hospital MarburgPhilipps‐Universität Marburg Marburg Germany
| | - María José Torres
- Allergy Unit Málaga Regional University Hospital‐IBIMA‐UMA Málaga Spain
| | - Marek Sanak
- Department of Medicine Jagiellonian University Medical College Krakow Poland
| | - Sven‐Erik Dahlén
- Institute of Environmental Medicine and the Centre for Allergy Research, Karolinska Institute, and the Department of Respiratory Medicine Karolinska University Hospital Stockholm Sweden
| | - Grzegorz Woszczek
- Asthma UK Centre in Allergic Mechanisms of Asthma School of Immunology and Microbial Sciences King's College London London UK
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Mohan A, Ludwig A, Brehm C, Lugogo N, Sumino K, Hanania NA. Revisiting Mild Asthma: Current Knowledge and Future Needs. Chest 2021; 161:26-39. [PMID: 34543667 DOI: 10.1016/j.chest.2021.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/22/2021] [Accepted: 09/09/2021] [Indexed: 11/24/2022] Open
Abstract
Asthma is a common chronic airways disease with significant impact on patients, caregivers, and the health-care system. Although most research and novel interventions mainly have focused on patients with uncontrolled severe asthma, most patients with asthma have mild disease. Epidemiologic studies suggest that many patients with mild asthma report frequent exacerbations of the disease and uncontrolled symptoms. However, despite its impact, mild asthma does not have either a uniformly agreed on definition for or a consensus on its clinical and pathophysiologic progression. More recently, the approach to treatment of patients with mild asthma has undergone significant changes primarily based on emerging evidence that airway inflammation in this population is important. This led to clinical research studies that explored the efficacy of as-needed inhaled corticosteroids along with the rescue medications that traditionally have been the mainstay of treatment. Despite some advancement in the field in recent years, many controversies and unmet needs remain. In this review, we examine the current understanding of the pathophysiologic features and management of mild asthma. In addition, we outline unmet needs for future research. We conclude that mild asthma contributes significantly to the morbidity and mortality of asthma and should be the focus of future research.
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Affiliation(s)
- Arjun Mohan
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA.
| | - Amy Ludwig
- Department of Internal Medicine and Pediatrics, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Caryn Brehm
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Njira Lugogo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Kaharu Sumino
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University, St. Louis, MO
| | - Nicola A Hanania
- Section of Pulmonary, Critical Care and Sleep Medicine, Baylor College of Medicine, Houston, TX
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van Boven JFM, Dierick BJH, Usmani OS. When biology meets behaviour: can medication adherence mask the contribution of pharmacogenetic effects in asthma? Eur Respir J 2021; 58:58/3/2100304. [PMID: 34475112 DOI: 10.1183/13993003.00304-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 02/08/2021] [Indexed: 11/05/2022]
Affiliation(s)
- Job F M van Boven
- Dept of Clinical Pharmacy and Pharmacology, Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands .,Medication Adherence Expertise Center of the northern Netherlands (MAECON), Groningen, The Netherlands
| | - Boudewijn J H Dierick
- Dept of Clinical Pharmacy and Pharmacology, Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Omar S Usmani
- Imperial College London and Royal Brompton Hospital, London, UK
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12
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Cazzola M, Matera MG, Rogliani P, Calzetta L, Ora J. Step-up and step-down approaches in the treatment of asthma. Expert Rev Respir Med 2021; 15:1159-1168. [PMID: 34032534 DOI: 10.1080/17476348.2021.1935245] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Introduction: Significant intraindividual and temporal variability in symptom control is a feature of asthma that requires careful monitoring and the need to periodically review and adjust therapy. Both NHLBI/NAEPP and GINA offer helpful algorithms for a stepping approach to asthma.Areas covered: The problems arisen in applying the stepwise approach to the treatment of asthma proposed by NHLBI/NAEPP and GINA algorithms and their possible alternatives.Expert opinion: The current therapeutic stepping approach to asthma, which takes into account lung function, symptoms and quality of life, is certainly useful, but it does not consider the underlying mechanisms. Furthermore, patient's overestimation or underestimation of the severity of the disease and differences in the opinions on the level of asthma control required between patients and physicians and also between physicians in both primary care and specialist settings are common and may negatively affect asthma control and future risks. A reassessment of the conventional stepping approach to management of asthma is now needed. A pragmatic approach that sets therapeutic goals for each individual and associates them with the treatable traits of asthma which, when therapeutically targeted, will in many cases help to achieve the goals, seems more reasonable than the present stepping approach.
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Affiliation(s)
- Mario Cazzola
- Unit of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Maria Gabriella Matera
- Unit of Pharmacology, Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Paola Rogliani
- Unit of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy.,Division of Respiratory Medicine, University Hospital "Tor Vergata", Rome, Italy
| | - Luigino Calzetta
- Respiratory Disease and Lung Function Unit, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Josuel Ora
- Division of Respiratory Medicine, University Hospital "Tor Vergata", Rome, Italy
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13
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Hamaguchi M, Taooka Y, Nakao M, Nakashima K, Hotta T, Tsubata Y, Hamaguchi S, Sutani A, Isobe T. Clinical Management of Asthma by Respiratory Specialists versus General Practitioners: Questionnaire Survey Results Over 6 Years. Int J Gen Med 2021; 14:1003-1011. [PMID: 33790629 PMCID: PMC8005259 DOI: 10.2147/ijgm.s292188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 02/22/2021] [Indexed: 11/23/2022] Open
Abstract
Background In Japan, the Ministry of Health, Labour and Welfare population dynamics investigation showed a decrease in the number of deaths related to asthma in recent years. In 2016, the mortality rate was 1.2 deaths per 100,000 population. There were regional differences; Shimane Prefecture had a higher mortality rate (1.6 deaths per 100,000 population in 2016) than other prefectures. In this study, to clarify problems in asthma treatment, we evaluated the status of asthma treatment in Shimane Prefecture. Methods We performed three cross-sectional questionnaire surveys, in October 2006, February 2009, and February 2012. We received responses from 78 clinics and hospitals. Subjects were patients with bronchial asthma over 14 years of age who regularly visited an outpatient clinic. Survey items included smoking status, control status assessed using the Asthma Control Test (ACT), treatment, and medication adherence. Doctors board-certified by the Japanese Respiratory Society were defined as respiratory specialists (RSs) and other doctors were defined as general practitioners (GPs). We compared various factors between the RS and GP groups. Results Clinical data of 2159 patients were available for analysis. The proportion of patients with ACT score ≥ 20 points increased significantly between 2006 and 2012 in the GP group. The rate of inhaled corticosteroid use increased in the GP group from 63.6% to 76.4%. Conclusion It was suggested that asthma control and the rate of inhaled corticosteroid use were related. We should continue educating GPs about asthma treatment.
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Affiliation(s)
- Megumi Hamaguchi
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Yasuyuki Taooka
- Respiratory Medicine, Medical Corporation JR Hiroshima Hospital, Hiroshima, Hiroshima, Japan
| | - Mika Nakao
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Kazuhisa Nakashima
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Takamasa Hotta
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Yukari Tsubata
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Shunichi Hamaguchi
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Akihisa Sutani
- Respiratory Medicine, Sutani Clinic, Izumo, Shimane, Japan
| | - Takeshi Isobe
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
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14
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Kim NE, Lee S, Kim BY, Hwang AG, Shin JH, Yang HJ, Won S. The nationwide retrospective cohort study by Health Insurance Review and Assessment Service proves that asthma management decreases the exacerbation risk of asthma. Sci Rep 2021; 11:1442. [PMID: 33446854 PMCID: PMC7809363 DOI: 10.1038/s41598-021-81022-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 12/21/2020] [Indexed: 11/09/2022] Open
Abstract
Medical costs have recently increased in South Korea due to the rising rate of asthma. Primary clinics serve an important role in asthma management, as they are the first stop for patients presenting with symptoms. The Health Insurance Review and Assessment Service (HIRA) in South Korea has assessed asthma-management quality since 2013, but studies are lacking on whether these assessments have been performed properly and contribute toward reducing asthma exacerbations. Therefore, we investigated whether the HIRA’s quality assessments have decreased asthma exacerbations using national health insurance claims data from 2013 to 2017 of 83,375 primary-clinic and 15,931 tertiary-hospital patients with asthma. These patients were classified into four groups based on disease severity according to the monthly prescribed amount of asthma medication using K-means clustering. The associations between HIRA assessments and asthma exacerbation were analyzed using a generalized estimating equation. Our results showed that exacerbation odds gradually decreased as the HIRA assessments progressed, especially in the mild-severity group, and that exacerbation risk among patients with asthma decreased in the order of assessment grades: “Unsatisfactory,” “Satisfactory,” and “Tertiary.” Therefore, we may conclude that asthma exacerbations may decrease with high quality asthma management; appropriate quality assessment could be helpful in reducing asthma exacerbations.
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Affiliation(s)
- Nam-Eun Kim
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Sanghun Lee
- Department of Medical Consilience, Graduate School of Dankook University, Jukjeon, Korea
| | - Bo Yeon Kim
- Healthcare Review and Assessment Committee, Health Insurance Review and Assessment Service, Wonju, Korea
| | - Ae Gi Hwang
- Chronic Disease Assessment Division, Health Insurance Review and Assessment Service, Wonju, Korea
| | - Ji Hyeon Shin
- Quality Assessment Management Division, Health Insurance Review and Assessment Service, Wonju, Korea
| | - Hyeon-Jong Yang
- SCH Biomedical Informatics Research Unit, Soonchunhyang University Seoul Hospital, Seoul, Korea. .,Pediatric Allergy and Respiratory Center, Department of Pediatrics, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
| | - Sungho Won
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea. .,Interdisciplinary Program of Bioinformatics, Seoul National University, Seoul, Korea. .,Institute of Health and Environment, Seoul National University, Seoul, Korea.
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15
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Sokolowska M, Rovati GE, Diamant Z, Untersmayr E, Schwarze J, Lukasik Z, Sava F, Angelina A, Palomares O, Akdis CA, O’Mahony L, Sanak M, Dahlen S, Woszczek G. Current perspective on eicosanoids in asthma and allergic diseases: EAACI Task Force consensus report, part I. Allergy 2021; 76:114-130. [PMID: 32279330 DOI: 10.1111/all.14295] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/13/2020] [Accepted: 03/25/2020] [Indexed: 12/25/2022]
Abstract
Eicosanoids are biologically active lipid mediators, comprising prostaglandins, leukotrienes, thromboxanes, and lipoxins, involved in several pathophysiological processes relevant to asthma, allergies, and allied diseases. Prostaglandins and leukotrienes are the most studied eicosanoids and established inducers of airway pathophysiology including bronchoconstriction and airway inflammation. Drugs inhibiting the synthesis of lipid mediators or their effects, such as leukotriene synthesis inhibitors, leukotriene receptors antagonists, and more recently prostaglandin D2 receptor antagonists, have been shown to modulate features of asthma and allergic diseases. This review, produced by an European Academy of Allergy and Clinical Immunology (EAACI) task force, highlights our current understanding of eicosanoid biology and its role in mediating human pathology, with a focus on new findings relevant for clinical practice, development of novel therapeutics, and future research opportunities.
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Affiliation(s)
- Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research University of Zurich Davos Switzerland
- Christine Kühne ‐ Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
| | - G. Enrico Rovati
- Department of Pharmaceutical Sciences University of Milan Milan Italy
| | - Zuzana Diamant
- Department of Respiratory Medicine & Allergology Skane University Hospital Lund Sweden
- Department of Respiratory Medicine First Faculty of Medicine Charles University and Thomayer Hospital Prague Czech Republic
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research Center for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Jargen Schwarze
- Child Life and Health and Centre for Inflammation Research The University of Edinburgh Edinburgh UK
| | - Zuzanna Lukasik
- Swiss Institute of Allergy and Asthma Research University of Zurich Davos Switzerland
| | - Florentina Sava
- London North Genomic Laboratory Hub Great Ormond Street Hospital for Children NHS Foundation Trust London UK
| | - Alba Angelina
- Department of Biochemistry and Molecular Biology School of Chemistry Complutense University Madrid Spain
| | - Oscar Palomares
- Department of Biochemistry and Molecular Biology School of Chemistry Complutense University Madrid Spain
| | - Cezmi A. Akdis
- Swiss Institute of Allergy and Asthma Research University of Zurich Davos Switzerland
- Christine Kühne ‐ Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
| | - Liam O’Mahony
- Departments of Medicine and Microbiology APC Microbiome Ireland University College Cork Cork Ireland
| | - Marek Sanak
- Department of Medicine Jagiellonian University Medical College Krakow Poland
| | - Sven‐Erik Dahlen
- Institute of Environmental Medicine Karolinska Institute Stockholm Sweden
- Centre for Allergy Research Karolinska Institute Stockholm Sweden
| | - Grzegorz Woszczek
- MRC/Asthma UK Centre in Allergic Mechanisms of Asthma School of Immunology & Microbial Sciences King's College London London UK
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16
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Yilmaz Bayer O, Turktas I, Ertoy Karagol HI, Soysal S, Yapar D. Neuropsychiatric adverse drug reactions induced by montelukast impair the quality of life in children with asthma. J Asthma 2020; 59:580-589. [PMID: 33287615 DOI: 10.1080/02770903.2020.1861626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Montelukast-induced neuropsychiatric adverse drug reactions (ADRs) have been reported in retrospective studies. This study aimed to reveal the neuropsychiatric ADRs triggered in patients taking montelukast due to asthma in real time, and to evaluate the effect of these ADRs on quality of life (QoL). METHODS Patients, ages 3-18 years, taking montelukast for the first time and their parents were included. Ages 3-7 years were defined as the preschool and ages 8-18 years as the school-age group. At the beginning of the study and at the end of the second week of treatment, the neuropsychiatric complaint assessment questionnaire and the KINDL QoL scale were administered to patients and their parents. The effect of ADRs on the decrease in QoL was evaluated by multivariable logistic regression. RESULTS Neuropsychiatric ADRs were reported in 78 (62.4%) of 125 patients, who recovered when the drug was discontinued. Temperamental behavior, nightmares and sleep disorders occurred significantly more often in both groups compared with pretreatment (p < 0.001 for each). In both groups, except in the child-reported family relationships subscale in the school-age group, significant decreases were found in both child and parent proxy-reported QoL total/sub-scores compared with pretreatment (p˂0.001 for each). It was found in the evaluation that the overall QoL of those experiencing ADRs in both age groups was more affected. (Child-reported QoL ORpreschool age=2.66, p = 0.048; ORschool-age=5.95, p = 0.027; parent-proxy QoL ORpreschool age =3.52, p = 0.010, ORschool-age=6.43, p = 0.027). CONCLUSIONS Montelukast-induced neuropsychiatric ADRs are more frequent than reported in the literature and negatively impact children's QoL.
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Affiliation(s)
- Oznur Yilmaz Bayer
- Department of Pediatrics, Konya Training and Research Hospital, Konya, Turkey
| | - Ipek Turktas
- Department of Pediatric Allergy and Asthma, Gazi University School of Medicine, Ankara, Turkey
| | | | - Sebnem Soysal
- Department of Pediatric Neurology, Gazi University School of Medicine, Ankara, Turkey
| | - Dilek Yapar
- Department of Public Health, Gazi University School of Medicine, Ankara, Turkey
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17
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Boisseau S, Qasuri M, Ho WT, Ghosh W, Hadjiat Y. Perspective on the Budgetary Impact of FP/FORM pMDI on Treatment and Management of Exacerbation in Moderate-to-Severe Asthma Patients in Singapore. CLINICOECONOMICS AND OUTCOMES RESEARCH 2020; 12:567-577. [PMID: 33116696 PMCID: PMC7547776 DOI: 10.2147/ceor.s262267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/02/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose Reducing the risk of exacerbation is a long-term goal of managing moderate-to-severe asthma. The use of fluticasone propionate/formoterol fumarate dihydrate (FP/FORM) pressurized metered-dose (pMDI, Flutiform®), a type of inhaled corticosteroid (ICS) and long-acting β2 agonist (LABA) fixed-dose combination, has been associated with lower oral corticosteroid-requiring exacerbation rates than other ICS/LABA fixed-dose combinations, fluticasone propionate/salmeterol xinafoate (FP/SAL) and budesonide/formoterol fumarate (BUD/FORM). This study presents the first budget impact analysis of drug and exacerbation management cost savings associated with the increased access to FP/FORM compared to the currently available ICS/LABAs for treating moderate-to-severe asthma in Singapore. Patients and Methods A budget impact model showed changes to annual drug and exacerbation costs over 5 years for patients with moderate-to-severe asthma in Singapore, following the inclusion of FP/FORM on a government subsidy list. The eligible patient population was identified based on national statistics data. Different treatment costs pertaining to the population were applied according to the usage data (IQVIA Singapore National Sales Data) for different scenarios. Drug costs were obtained from public-sector hospitals. Exacerbation management costs were obtained from literature searches. Results The analysis showed that increased access to FP/FORM as a result of switching from FP/SAL could help achieve drug (S$1,042,289) and exacerbation management (S$223,550) cost savings over 5 years. In the scenario where patients switched from BUD/FORM, greater drug (S$2,572,797) and exacerbation management (S$256,781) cost savings were observed over 5 years. Conclusion The analysis provides a perspective that the increased access to FP/FORM could help achieve drug and exacerbation cost savings for the treatment of moderate-to-severe asthma.
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Affiliation(s)
| | | | - Weng Tong Ho
- Mundipharma Singapore Holding Pte Limited, Singapore
| | - Wrik Ghosh
- Costello Medical Singapore Pte Ltd, Singapore
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18
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Abstract
Bronchial asthma is characterized by chronic airway inflammation, which manifests clinically as variable airway narrowing (wheezes and dyspnea) and cough. Long-standing asthma may induce airway remodeling and become intractable. The prevalence of asthma has increased; however, the number of patients who die from it has decreased (1.3 per 100,000 patients in 2018). The goal of asthma treatment is to control symptoms and prevent future risks. A good partnership between physicians and patients is indispensable for effective treatment. Long-term management with therapeutic agents and the elimination of the triggers and risk factors of asthma are fundamental to its treatment. Asthma is managed by four steps of pharmacotherapy, ranging from mild to intensive treatments, depending on the severity of disease; each step includes an appropriate daily dose of an inhaled corticosteroid, which may vary from low to high. Long-acting β2-agonists, leukotriene receptor antagonists, sustained-release theophylline, and long-acting muscarinic antagonists are recommended as add-on drugs, while anti-immunoglobulin E antibodies and other biologics, and oral steroids are reserved for very severe and persistent asthma related to allergic reactions. Bronchial thermoplasty has recently been developed for severe, persistent asthma, but its long-term efficacy is not known. Inhaled β2-agonists, aminophylline, corticosteroids, adrenaline, oxygen therapy, and other approaches are used as needed during acute exacerbations, by selecting treatment steps for asthma based on the severity of the exacerbations. Allergic rhinitis, eosinophilic chronic rhinosinusitis, eosinophilic otitis, chronic obstructive pulmonary disease, aspirin-exacerbated respiratory disease, and pregnancy are also important conditions to be considered in asthma therapy.
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19
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Vestbo J, Janson C, Nuevo J, Price D. Observational studies assessing the pharmacological treatment of obstructive lung disease: strengths, challenges and considerations for study design. ERJ Open Res 2020; 6:00044-2020. [PMID: 33083435 PMCID: PMC7553106 DOI: 10.1183/23120541.00044-2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 06/01/2020] [Indexed: 11/05/2022] Open
Abstract
Randomised controlled trials (RCTs) are the gold standard for evaluating treatment efficacy in patients with obstructive lung disease. However, due to strict inclusion criteria and the conditions required for ascertaining statistical significance, the patients included typically represent as little as 5% of the general obstructive lung disease population. Thus, studies in broader patient populations are becoming increasingly important. These can be randomised effectiveness trials or observational studies providing data on real-world treatment effectiveness and safety data that complement efficacy RCTs. In this review we describe the features associated with the diagnosis of asthma and chronic obstructive pulmonary disease (COPD) in the real-world clinical practice setting. We also discuss how RCTs and observational studies have reported opposing outcomes with several treatments and inhaler devices due to differences in study design and the variations in patients recruited by different study types. Whilst observational studies are not without weaknesses, we outline recently developed tools for defining markers of quality of observational studies. We also examine how observational studies are capable of providing valuable insights into disease mechanisms and management and how they are a vital component of research into obstructive lung disease. As we move into an era of personalised medicine, recent observational studies, such as the NOVEL observational longiTudinal studY (NOVELTY), have the capacity to provide a greater understanding of the value of a personalised healthcare approach in patients in clinical practice by focussing on standardised outcome measures of patient-reported outcomes, physician assessments, airway physiology, and blood and airway biomarkers across both primary and specialist care.
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Affiliation(s)
- Jørgen Vestbo
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, University of Manchester, Manchester, UK
| | - Christer Janson
- Dept of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
| | | | - David Price
- Observational and Pragmatic Research Institute, Singapore
- Centre of Academic Primary Care, Division of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
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20
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Tian W, Jiang X, Kim D, Guan T, Nicolls MR, Rockson SG. Leukotrienes in Tumor-Associated Inflammation. Front Pharmacol 2020; 11:1289. [PMID: 32973519 PMCID: PMC7466732 DOI: 10.3389/fphar.2020.01289] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022] Open
Abstract
Leukotrienes are biologically active eicosanoid lipid mediators that originate from oxidative metabolism of arachidonic acid. Biosynthesis of leukotrienes involves a set of soluble and membrane-bound enzymes that constitute a machinery complex primarily expressed by cells of myeloid origin. Leukotrienes and their synthetic enzymes are critical immune modulators for leukocyte migration. Increased concentrations of leukotrienes are implicated in a number of inflammatory disorders. More recent work indicates that leukotrienes may also interact with a variety of tissue cells, contributing to the low-grade inflammation of cardiovascular, neurodegenerative, and metabolic conditions, as well as that of cancer. Leukotriene signaling contributes to the active tumor microenvironment, promoting tumor growth and resistance to immunotherapy. This review summarizes recent insights into the intricate roles of leukotrienes in promoting tumor growth and metastasis through shaping the tumor microenvironment. The emerging possibilities for pharmacological targeting of leukotriene signaling in tumor metastasis are considered.
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Affiliation(s)
- Wen Tian
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Xinguo Jiang
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Dongeon Kim
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Torrey Guan
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Mark R Nicolls
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Stanley G Rockson
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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21
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Hasson H, Leviton L, von Thiele Schwarz U. A typology of useful evidence: approaches to increase the practical value of intervention research. BMC Med Res Methodol 2020; 20:133. [PMID: 32460833 PMCID: PMC7254642 DOI: 10.1186/s12874-020-00992-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 04/26/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Too often, studies of evidence-based interventions (EBIs) in preventive, community, and health care are not sufficiently useful to end users (typically practitioners, patients, policymakers, or other researchers). The ways in which intervention studies are conventionally conducted and reported mean that there is often a shortage of information when an EBI is used in practice. The paper aims to invite the research community to consider ways to optimize not only the trustworthiness but also the research's usefulness in intervention studies. This is done by proposing a typology that provides some approaches to useful EBIs for intervention researchers. The approaches originate from different research fields and are summarized to highlight their potential benefits from a usefulness perspective. MAIN MESSAGE The typology consists of research approaches to increase the usefulness of EBIs by improving the reporting of four features in intervention studies: (1) the interventions themselves, including core components and appropriate adaptations; (2) strategies to support-high-quality implementation of the interventions; (3) generalizations about the evidence in a variety of contexts; and (4) outcomes based on end users' preferences and knowledge. The research approaches fall into three levels: Description, Analysis, and Design. The first level, Description, outlines what types of information about the intervention and its implementation, context, and outcomes can be helpful for end users. Research approaches under analysis offers alternative ways of analyzing data, increasing the precision of information provided to end users. Approaches summarized under design involve more radical changes and far-reaching implications for how research can provide more useful information. These approaches partly flip the order of efficacy and effectiveness, focusing not on whether an intervention works in highly controlled and optimal circumstances, but first and foremost whether an intervention can be implemented and lead to anticipated outcomes in everyday practice. CONCLUSIONS The research community, as well as the end users of research, are invited to consider ways to optimize research's usefulness as well as its trustworthiness. Many of the research approaches in the typology are not new, and their contributions to quality have been described for generations - but their contributions to useful knowledge need more attention.
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Affiliation(s)
- Henna Hasson
- Procome research group, Department of Learning, Informatics, Management and Ethics, Medical Management Centre, Karolinska Institutet, SE 171 77, Stockholm, Sweden.
- Unit for Implementation and Evaluation, Centre for Epidemiology and Community Medicine (CES), Stockholm County Council, SE 171 29, Stockholm, Sweden.
| | | | - Ulrica von Thiele Schwarz
- Procome research group, Department of Learning, Informatics, Management and Ethics, Medical Management Centre, Karolinska Institutet, SE 171 77, Stockholm, Sweden
- School of Health, Care and Social Welfare, Mälardalen University, Mälardalen, Sweden
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22
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Abstract
PURPOSE OF REVIEW In the past decades, cysteinyl leukotrienes (CysLTs) and prostaglandin D2 have been recognized as key mediators of asthma and comorbid conditions for their potent broncho-active and proinflammatory properties. However, both the development and initial positioning of small molecules targeting these lipid mediators [i.e., leukotriene-synthesis inhibitors, CysLT-antagonists, and chemoattractant receptor homologous molecule on T-helper2-cells (CRTH2) antagonists] experienced drawbacks by lacking adequate biomarkers to define potential responders. RECENT FINDINGS New insights into the mechanisms of airway inflammation in asthma including the interaction of leukotrienes and prostanoids has uncovered potential therapeutic targets. Emerging application of biomarkers in more recent clinical studies helped identify responders to therapies targeting lipid mediators and demonstrated their clinical efficacy in distinct asthma phenotypes and endotypes. SUMMARY Interest in small molecules targeting lipid mediators in asthma and related conditions is emerging. Several clinical trials evaluating the efficacy and safety of CRTH2 (Prostaglandin D2 receptor 2) antagonists are ongoing. There is an urgent need for sensitive biomarkers to identify responders to such therapies and for monitoring of (long-term) effects. Furthermore, evaluation of effectiveness of combining different agents targeting lipid mediators or combining them with available or emerging biologics may uncover other potential benefits in certain asthma populations warranting future research.
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23
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Zhang E, Levin AM, Williams LK. How does race and ethnicity effect the precision treatment of asthma? EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2019; 4:337-356. [PMID: 33015363 DOI: 10.1080/23808993.2019.1690396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Introduction Asthma is a common condition that affects large numbers of children and adults, yet the burden of disease is not equally distributed amongst groups. In the United States, African Americans and Puerto Ricans have higher rates of asthma and its complications when compared with European Americans. However, clinical trials and genetic studies have largely focused on the latter group. Areas covered Here we examine what is known regarding differences in asthma treatment response by race-ethnicity. We also review existing genetic studies related to the use of asthma medications, paying special attention to studies that included substantial numbers of non-white population groups. Publicly accessible search engines of the medical literature were queried using combinations of the terms asthma, race, ethnicity, pharmacogenomics, and pharmacogenetics, as well as the names of individual asthma medication classes. The list of articles reviewed was supplemented by bibliographies and expert knowledge. Expert opinion A substantial and coordinated effort is still needed to both identify and validate genetic biomarkers of asthma medication response, as currently there are no clinically actionable genetic markers available for this purpose. The path to identifying such markers in non-white populations is even more formidable, since these groups are underrepresented in existing data.
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Affiliation(s)
- Ellen Zhang
- Center for Individualized and Genomic Medicine Research (CIGMA), Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
| | - Albert M Levin
- Department of Public Health Sciences, Henry Ford Health System, Detroit, MI, USA
| | - L Keoki Williams
- Center for Individualized and Genomic Medicine Research (CIGMA), Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
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24
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Li M, Zheng W, Zhang C, Yan Q, Peng Z, Xie F, Hong Y, Liu X. Chuankezhi injection for asthma: Protocol of a systematic review and meta-analysis. Medicine (Baltimore) 2019; 98:e16630. [PMID: 31415356 PMCID: PMC6831183 DOI: 10.1097/md.0000000000016630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Asthma is a chronic inflammatory disease characterized by recurrent attacks of breathlessness and wheezing, which often worsen at night or in the early morning and vary from person to person in severity and frequency. Chuankezhi injection (CKZ), as a new Chinese medicine, was recently found to have a good clinical effect on asthma. Whereas neither systematic nor meta-analysis of randomized controlled trials (RCTs) explain the efficacy of CKZ in treating asthma. Therefore, we provide a protocol to evaluate the efficacy and safety of CKZ for asthma. METHODS From inception until April 2019, a systematic and comprehensive literature search will be conducted in both 4 Chinese databases and 3 English databases. RCTs will be included related to CKZ for asthma. We will assess the quality of the included trials in accordance with the risk of bias tools in Cochrane manual 5.1.0. We will use the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) method to assess the certainty of the estimated evidence. Data analysis will be performed using the STATA 15.0. RESULTS This systematic review aims to assess the effectiveness and safety of CKZ for the treatment of asthma, in order to provide evidence for the clinical practice of Chinese medicine. This protocol will be conducted and reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA-P) statement. The results of this meta-analysis will be submitted to a peer-reviewed journal once it is completed. CONCLUSION The consequence of this study will furnish proof to evaluate if CKZ is effective in the treatment of asthma. PROSPERO REGISTRATION NUMBER ROSPERO CRD42019134458.
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Affiliation(s)
- Meichen Li
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation
- Guangzhou University of Chinese Medicine
| | | | - Chaoyuan Zhang
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation
| | - Qian Yan
- Guangzhou University of Chinese Medicine
| | | | - Fuqi Xie
- Guangzhou University of Chinese Medicine
| | - Yu Hong
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaohong Liu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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A Comparison of Leukotriene Receptor Antagonists to Low-Dose Inhaled Corticosteroids in the Elderly with Mild Asthma. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2019; 7:2642-2652.e3. [PMID: 31108218 DOI: 10.1016/j.jaip.2019.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 05/04/2019] [Accepted: 05/06/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Although elderly patients with asthma have clinical characteristics different from those of young adults, few studies or guidelines have focused on specific treatments for this population. OBJECTIVE This study compared the effectiveness of leukotriene receptor antagonists (LTRAs) versus inhaled corticosteroids (ICSs) in elderly patients with asthma in real-world settings. METHODS We extracted records for elderly patients with asthma who were newly prescribed LTRAs or low-dose ICSs from January 2003 to December 2010 from National Sample Cohort data of Korea. We defined the first prescription date for each medication as the index date. We compared the risks of asthma exacerbation between the 2 groups using Cox proportional-hazard regression after propensity score-based inverse probability of treatment weighting to balance covariates between treatment groups. We also compared asthma-related health care resource utilization and medication compliance in both groups using chi-square test and t test. RESULTS The number of identified patients newly treated with LTRAs and low-dose ICSs was 1571 and 121, respectively. The risks of asthma exacerbation in the LTRA and low-dose ICS groups after weighting were not significantly different (hazard ratio, 0.98; 95% CI, 0.65-1.54). The proportion with high compliance (medication possession ratio ≥ 80%) in the LTRA group was higher than that in the low-dose ICS group. CONCLUSIONS The effectiveness of LTRAs was not different from that of low-dose ICSs regarding the risk of asthma exacerbation in elderly patients with asthma in real-world settings. Given the practical benefits gained from convenient administration, LTRAs can be considered a reasonable alternative first-line therapy for elderly patients with mild asthma.
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Roche N, Campbell JD, Krishnan JA, Brusselle G, Chisholm A, Bjermer L, Thomas M, van Ganse E, van den Berge M, Christoff G, Quint J, Papadopoulos NG, Price D. Quality standards in respiratory real-life effectiveness research: the REal Life EVidence AssessmeNt Tool (RELEVANT): report from the Respiratory Effectiveness Group-European Academy of Allergy and Clinical Immunology Task Force. Clin Transl Allergy 2019; 9:20. [PMID: 30962875 PMCID: PMC6436229 DOI: 10.1186/s13601-019-0255-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 01/31/2019] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION A Task Force was commissioned jointly by the European Academy of Allergy and Clinical Immunology (EAACI) and the Respiratory Effectiveness Group (REG) to develop a quality assessment tool for real-life observational research to identify high-quality real-life asthma studies that could be considered within future guideline development. METHODS The resulting REal Life EVidence AssessmeNt Tool (RELEVANT) was achieved through an extensive analysis of existing initiatives in this area. The first version was piloted among 9 raters across 6 articles; the revised, interim, version underwent extensive testing by 22 reviewers from the EAACI membership and REG collaborator group, leading to further revisions and tool finalisation. RELEVANT was validated through an analysis of real-life effectiveness studies identified via systematic review of Medline and Embase databases and relating to topics for which real-life studies may offer valuable evidence complementary to that from randomised controlled trials. The topics were selected through a vote among Task Force members and related to the influence of adherence, smoking, inhaler device and particle size on asthma treatment effectiveness. RESULTS Although highlighting a general lack of high-quality real-life effectiveness observational research on these clinically important topics, the analysis provided insights into how identified observational studies might inform asthma guidelines developers and clinicians. Overall, RELEVANT appeared reliable and easy to use by expert reviewers. CONCLUSIONS Using such quality appraisal tools is mandatory to assess whether specific observational real-life effectiveness studies can be used to inform guideline development and/or decision-making in clinical practice.
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Affiliation(s)
- Nicolas Roche
- Pneumologie, Hôpital Cochin, 27 rue du Faubourg Saint Jacques, 75014 Paris, France
| | - Jonathan D. Campbell
- Center for Pharmaceutical Outcomes Reasearch, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, CO USA
| | | | - Guy Brusselle
- Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | | | - Leif Bjermer
- Department of Respiratory Medicine and Allergology, Skane University Hospital, 221, 85 Lund, Sweden
| | - Mike Thomas
- University of Southampton, University Road, Southampton, SO17 1BJ UK
| | - Eric van Ganse
- Claude-Bernard Lyon1 University, 43 Boulevard du 11 Novembre 1918, 69100 Villeurbanne, France
| | | | - George Christoff
- Medical University - Sofia, Faculty of Public Health, 8 “Bialo more” str, 1527, Sofia, Bulgaria
| | - Jennifer Quint
- Imperial College London, South Kensington Campus, London, SW7 2AZ UK
| | | | - David Price
- Observational and Pragmatic Research Institute, 60 Paya Lebar Road, Paya Lebar Square, #05-33/34, Singapore, 409051 Singapore
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Longo C, Bartlett G, Schuster T, Ducharme FM, MacGibbon B, Barnett TA. Weight status and nonadherence to asthma maintenance therapy among children enrolled in a public drug insurance plan. J Asthma 2019; 57:627-637. [PMID: 30912698 DOI: 10.1080/02770903.2019.1590593] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Objective: The pediatric obese-asthma phenotype is associated with poor control, perhaps because of medication nonadherence. This study aimed to assess whether weight status is associated with nonadherence in children prescribed new asthma maintenance therapies.Methods: A historical cohort was constructed from a clinical database linking individual patient and prescription data to Quebec's prescription claims registry. Children aged 2-18 years with specialist-diagnosed asthma who were newly prescribed one of the following maintenance controllers: leukotriene receptor antagonists (LTRA); low-dose inhaled corticosteroids (ICS); medium/high-dose ICS; or combination therapy (ICS with long-acting beta-2 agonists and/or LTRA), at the Asthma Center of the Montreal Children's Hospital from 2000-2007 were included. Primary nonadherence was defined as not claiming any prescriptions, whereas secondary nonadherence was measured with the proportion of prescribed days covered (PPDC ≤ 50%) among primary adherers over a 6-month follow-up period. A modified Poisson regression model served to estimate the effect of excess weight (BMI > 85th percentile) on primary and secondary nonadherence.Results: Approximately one third of patients were primary nonadherers and 60% took less than 50% of prescribed therapy. Excess weight was associated with a trend toward increased risk of primary nonadherence in children newly prescribed low-dose ICS (RR 1.53, 95%CI 0.94-2.49), and of secondary nonadherence in children initiating medium/high-dose ICS (RR 1.24; 95%CI 0.98-1.59).Conclusions: Excess weight status is a possible determinant of primary nonadherence in children initiating low-dose ICS and secondary nonadherence to higher-dose ICS regimens. This hypothesis-generating study suggests that nonadherence may be a potential contributor to higher morbidity in children with obese-asthma.
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Affiliation(s)
- Cristina Longo
- Department of Family Medicine, McGill University, Montréal, Québec, Canada
| | - Gillian Bartlett
- Department of Family Medicine, McGill University, Montréal, Québec, Canada
| | - Tibor Schuster
- Department of Family Medicine, McGill University, Montréal, Québec, Canada
| | - Francine M Ducharme
- Centre de recherche du CHU Sainte-Justine, Montréal, Québec, Canada.,Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada.,Department of Social and Preventive Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Brenda MacGibbon
- Département de Mathématiques, Université du Québec à Montréal, Montréal, Québec, Canada
| | - Tracie A Barnett
- Centre de recherche du CHU Sainte-Justine, Montréal, Québec, Canada.,Unité d'Épidémiologie et Biostatistiques, INRS-Institut Armand-Frappier, Laval, Québec, Canada
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Droitcourt C, Barbarot S, Maruani A, Darrieux L, Misery L, Brenaut E, Adamski H, Chabbert C, Vermersch A, Weiborn M, Seneschal J, Taïeb A, Plantin P, Maillard H, Phan A, Skowron F, Viguier M, Staumont-Salle D, Nosbaum A, Soria A, Barbaud A, Oger E, Dupuy A. A new phototherapy regimen during winter as an add-on therapy, coupled with oral vitamin D supplementation, for the long-term control of atopic dermatitis: study protocol for a multicentre, randomized, crossover, pragmatic trial - the PRADA trial. Trials 2019; 20:184. [PMID: 30909923 PMCID: PMC6434814 DOI: 10.1186/s13063-019-3276-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 03/01/2019] [Indexed: 12/05/2022] Open
Abstract
Background Atopic dermatitis is a highly prevalent, chronic, relapsing disease in both adults and children. On the severity spectrum, lower-end patients benefit from small amounts of topical anti-inflammatory treatments (TAT), whereas higher-end patients need systemic immunosuppressants; in-between patients are treated with TAT and phototherapy. The major therapeutic challenge in this population is the long-term control of disease activity, and the current TAT-based pro-active strategy does not meet all their needs. Immunosuppressants are used as long-term control add-on treatments, but they are restricted to the most severely affected patients because of safety concerns. In addition, neither immunosuppressants nor other strategies have been properly evaluated in the long term despite long-term control having been acknowledged as one of the most important core outcome domains to be targeted in atopic dermatitis trials. Safe add-on therapies, rigorously evaluated for long-term control of the disease, are therefore needed. Phototherapy and vitamin D supplementation are both good candidates. Methods This is a multicenter, national, randomized, superiority, crossover trial testing add-on phototherapy (one winter under spaced sessions of phototherapy and one winter under observation) among subjects receiving standard care (i.e., TAT). On the same population, we will test the long-term control provided by oral supplementation of vitamin D versus placebo in a randomized, superiority, double-blind, parallel-group trial. The primary outcomes are (1) repeat measures of the PO-SCORAD severity score over 1 year and (2) cumulate consumption of TAT (number of tubes) during the winter. They will be tested following a hierarchical testing procedure. The secondary outcomes will be measures repeated over 2 years of investigator-based severity scores, patient-reported severity and quality of life scores, serum vitamin D levels, weeks during which the disease is well-controlled, inter-visit cumulate consumption of TAT, and synthetic patient-reported satisfaction at the end of each winter. Discussion This study includes two separate 2-year pragmatic trials designed to evaluate the efficacy of vitamin D supplementation and pro-active phototherapy for primary care atopic dermatitis patients receiving TAT on long-term control of disease activity. The experimental design enables the study of both interventions and exploration of the interaction between vitamin D and phototherapy. A pragmatic trial is particularly suited to the assessment of long-term control. This study explores the possibility of new and safe therapeutic strategies for the control of long-term atopic dermatitis, and is an example of efficacy research that is unlikely to be sponsored by industrialists. A potentially effective low-cost therapeutic strategy for long-term control is essential for patients and public health. Trial registration ClinicalTrials.gov Identifier: NCT02537509, first received: 1 September 2015. Electronic supplementary material The online version of this article (10.1186/s13063-019-3276-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Catherine Droitcourt
- Univ Rennes, Rennes, France. .,Department of Dermatology, University Hospital Center of Rennes, Pontchaillou Hospital, 2 rue Henri le Guilloux, 35000, Rennes, France. .,INSERM, CIC 1414, 35000, Rennes, France. .,EA 7449 REPERES "Pharmaco-epidemiology and Health Services Research", Univ Rennes, 35000, Rennes, France.
| | - Sébastien Barbarot
- Department of Dermatology, University Hospital Center of Nantes, 44000, Nantes, France
| | - Annabel Maruani
- Department of Dermatology, University Hospital Center of Tours, 37000, Tours, France
| | - Laure Darrieux
- Department of Dermatology, Hospital Center of Saint-Brieuc, 22000, Saint-Brieuc, France
| | - Laurent Misery
- Department of Dermatology, University Hospital Center of Brest, 29000, Brest, France
| | - Emilie Brenaut
- Department of Dermatology, University Hospital Center of Brest, 29000, Brest, France
| | - Henri Adamski
- Department of Dermatology, University Hospital Center of Rennes, Pontchaillou Hospital, 2 rue Henri le Guilloux, 35000, Rennes, France
| | - Cécile Chabbert
- Department of Dermatology, Hospital Center of Perigueux, 24000, Perigueux, France
| | - Annie Vermersch
- Department of Dermatology, Hospital Center of Valenciennes, 62000, Valenciennes, France
| | - Marie Weiborn
- Department of Dermatology, Hospital Center of Valenciennes, 62000, Valenciennes, France
| | - Julien Seneschal
- Department of Dermatology, University Hospital Center of Bordeaux, 33000, Bordeaux, France
| | - Alain Taïeb
- Department of Dermatology, University Hospital Center of Bordeaux, 33000, Bordeaux, France
| | - Patrice Plantin
- Department of Dermatology, Hospital Center of Quimper, 29000, Quimper, France
| | - Hervé Maillard
- Department of Dermatology, Hospital Center of Le Mans, 72000, Angers, France
| | - Alice Phan
- Department of Dermatology, University Hospital Center of Lyon, 69000, Lyon-Bron, France
| | - François Skowron
- Department of Dermatology, Hospital Center of Valence, 26000, Valence, France
| | - Manuelle Viguier
- Department of Dermatology, University Hospital Center of Reims, 51000, Reims, France
| | | | - Audrey Nosbaum
- Department of Dermatology, University Hospital Center of Lyon, 69000, Lyon Sud, France
| | - Angèle Soria
- Department of Dermatology and Allergology, University Hospital Center of Paris-Tenon, 75020, Paris, France
| | - Annick Barbaud
- Department of Dermatology and Allergology, University Hospital Center of Paris-Tenon, 75020, Paris, France
| | - Emmanuel Oger
- Univ Rennes, Rennes, France.,EA 7449 REPERES "Pharmaco-epidemiology and Health Services Research", Univ Rennes, 35000, Rennes, France
| | - Alain Dupuy
- Univ Rennes, Rennes, France.,Department of Dermatology, University Hospital Center of Rennes, Pontchaillou Hospital, 2 rue Henri le Guilloux, 35000, Rennes, France.,EA 7449 REPERES "Pharmaco-epidemiology and Health Services Research", Univ Rennes, 35000, Rennes, France
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Hoshino M, Akitsu K, Ohtawa J. Comparison between montelukast and tiotropium as add-on therapy to inhaled corticosteroids plus a long-acting β 2-agonist in for patients with asthma. J Asthma 2018; 56:995-1003. [PMID: 30212239 DOI: 10.1080/02770903.2018.1514047] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Objective: Asthma often remains uncontrolled despite treatment with inhaled corticosteroids (ICS) alone or with ICS plus a long-acting β2-agonist (LABA). The recommended alternative is the addition of either montelukast or tiotropium. The aim of this study was to compare the effects of montelukast and tiotropium on airway inflammation and remodeling in persistent asthma. Methods: Eighty-seven patients with asthma were treated with budesonide and formoterol (640/18 μg); then, the patients were randomly allocated to three groups to receive oral montelukast (10 mg/day), inhaled tiotropium (5 μg/day), or no add-on to the maintenance therapy for 48 weeks. Fractional exhaled nitric oxide (FeNO) and pulmonary function were measured, and quantitative computed tomography was performed. Results: Compared to the maintenance therapy, add-on montelukast significantly decreased FeNO (p < 0.05) and improved airflow obstruction (p < 0.05), whereas airway dimensions remained unchanged. Changes in FeNO were significantly correlated with changes in FEV1 (r = -0.71, p < 0.001). In contrast, the addition of tiotropium significantly decreased airway wall area corrected for body surface area (WA/BSA) (p < 0.05), decreased wall thickness (T/√BSA) (p < 0.05) and improved airflow obstruction (p < 0.05) with no change in FeNO. Changes in WA/BSA and T/√BSA were significantly correlated with the change in percentage predicted FEV1 (r = -0.84, p < 0.001 and r = -0.59, p < 0.01, respectively). Conclusions:Adding either montelukast or tiotropium to ICS/LABA may provide additive benefits with respect to the pulmonary function and airway inflammation or remodeling in patients with asthma.
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Affiliation(s)
- Makoto Hoshino
- a Division of Clinical Allergy, Department of Internal Medicine, Atami Hospital, International University of Health and Welfare , Atami , Japan
| | - Kenta Akitsu
- b Department of Radiology, Atami Hospital, International University of Health and Welfare , Atami , Japan
| | - Junichi Ohtawa
- b Department of Radiology, Atami Hospital, International University of Health and Welfare , Atami , Japan
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Thomson NC. Challenges in the management of asthma associated with smoking-induced airway diseases. Expert Opin Pharmacother 2018; 19:1565-1579. [PMID: 30196731 DOI: 10.1080/14656566.2018.1515912] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Smoking-induced airway diseases such as chronic bronchitis, emphysema, and small airway dysfunction contribute to the chronic respiratory symptoms experienced by adults with asthma, including those with spirometric chronic obstructive pulmonary disease (COPD), termed asthma-COPD overlap (ACO). Drug treatment of symptomatic smokers with asthma or ACO is uncertain due to their exclusion from most clinical trials. AREAS COVERED This review summarizes evidence for the efficacy of small molecule drugs used in the clinic to treat current and former smokers with a diagnostic label of asthma or ACO. Other therapeutic interventions are reviewed, including smoking cessation and biologics. EXPERT OPINION Clinical trials and observational studies suggest that smoking cessation and approved drugs used to treat non-smokers with asthma produce clinical benefits in smokers with asthma or ACO, although the overall quality of evidence is low. The efficacy of some treatments for asthma is altered in current smokers, including reduced responsiveness to short-term inhaled corticosteroids and possibly improved responsiveness to leukotriene receptor antagonists. Preliminary findings suggest that low-dose theophylline, statins, and biologics, such as omalizumab, mepolizumab, and dupilumab, may improve clinical outcomes in smokers with asthma or ACO. Improved phenotyping and endotyping of asthma and smoking-induced airway diseases should lead to better targeted therapies.
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Affiliation(s)
- Neil C Thomson
- a Institute of Infection, Immunity & Inflammation , University of Glasgow , Glasgow , UK
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31
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Tummers M, van Hoorn R, Levering C, Booth A, van der Wilt GJ, Kievit W. Optimal search strategies for identifying moderators and predictors of treatment effects in PubMed. Health Info Libr J 2018; 36:318-340. [PMID: 30006959 DOI: 10.1111/hir.12230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 06/07/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Treatment effects differ across patients. To guide selection of treatments for patients, it is essential to acknowledge these differences and identify moderators or predictors. Our aim was to generate optimal search strategies (commonly known as filters) for PubMed to retrieve papers identifying moderators and predictors of treatment effects. METHODS Six journals were hand-searched for articles on moderators or predictors. Selected articles were randomly allocated to a development and validation set. Search terms were extracted from the development set and tested for their performance. Search filters were created from combinations of these terms and tested in the validation set. RESULTS Of 4407 articles, 198 were considered to be relevant. The most sensitive filter in the development set '("Epidemiologic Methods" [MeSH] OR assign* OR control*[tiab] OR trial*[tiab]) AND therapy*[sh]' yielded in the validation set a sensitivity of 89% [88%-90%] and a specificity of 80% [79%-82%]. CONCLUSIONS The search filters created in this study can help to efficiently retrieve evidence on moderators and predictors of treatment effect. Testing of the filters in multiple domains should reveal robustness across disciplines. These filters can facilitate the retrieval of evidence on moderators and predictors of treatment effects, helping the implementation of stratified or personalised health care.
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Affiliation(s)
- Marcia Tummers
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ralph van Hoorn
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Charlotte Levering
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Andrew Booth
- School of Health and Related Research (ScHARR), Health Economics and Decision Science (HEDS), University of Sheffield Regent Court, Sheffield, UK
| | - Gert Jan van der Wilt
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wietske Kievit
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
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Park HJ, Byun MK, Kim HJ, Ahn CM, Rhee CK, Kim K, Kim BY, Bae HW, Yoo KH. Regular follow-up visits reduce the risk for asthma exacerbation requiring admission in Korean adults with asthma. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2018; 14:29. [PMID: 30002684 PMCID: PMC6038276 DOI: 10.1186/s13223-018-0250-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/04/2018] [Indexed: 11/13/2022]
Abstract
BACKGROUND Asthma requires regular follow-up visits and sustained medication use. Although several studies have reported the importance of adherence to medication and compliance with the treatment, none to date have reported the importance of regular follow-up visits. We investigated the effects of regular clinical visits on asthma exacerbation. METHODS We used claims data in the national medical insurance review system provided by the Health Insurance Review and Assessment Service of Korea. We included subjects aged ≥ 15 years with a diagnosis of asthma, and who were prescribed asthma-related medication, from July 2013 to June 2014. Regular visitors (frequent visitors) were defined as subjects who visited the hospital for follow-up of asthma three or more times per year. RESULTS Among 729,343 subjects, 496,560 (68.1%) were classified as regular visitors. Old age, male sex, lack of medical aid insurance, attendance of a tertiary hospital, a high Charlson comorbidity index, and a history of admission for exacerbated asthma in the previous year were significant determining factors for regular visitor status. When we adjusted for all these factors, frequent visitors showed a lower risk of asthma exacerbation requiring general ward admission (odds ratio [OR] 0.48; 95% confidence interval [CI] 0.47-0.50; P < 0.001), emergency room admission (OR 0.83; 95% CI 0.79-0.86; P < 0.001), and intensive care unit admission (OR 0.49; 95% CI 0.44-0.54; P < 0.001) than infrequent visitors. CONCLUSIONS Regular clinical visits are significantly associated with a reduced risk of asthma exacerbation requiring hospital admission in Korean adults with asthma.
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Affiliation(s)
- Hye Jung Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Min Kwang Byun
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Hyung Jung Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Chul Min Ahn
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Kyungjoo Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Bo Yeon Kim
- Healthcare Review and Assessment Committee, Health Insurance Review & Assessment Service, Seoul, South Korea
| | - Hye Won Bae
- Division of Quality Assessment Management, Health Insurance Review & Assessment Service, Seoul, South Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, South Korea
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Abstract
Comparative effectiveness research (CER) has become increasing central to clinical research in medicine. CER seeks to conduct clinical trials that compare different commonly used interventions in real-world settings (pragmatic clinical trials) and use a multitude of sources of evidence (including registries and cohort studies) to inform clinical decision making. CER also ensures that stakeholders (patients, families, care providers, insurers) have a voice in the research process by integrating formal stakeholder engagement as part of the research. This innovative approach to clinical research has distinct benefits and pitfalls. This review first defines what CER is and then describes some of its benefits and then pitfalls. The focus is on the role of CER in pediatrics.
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White J, Paton JY, Niven R, Pinnock H. Guidelines for the diagnosis and management of asthma: a look at the key differences between BTS/SIGN and NICE. Thorax 2018. [DOI: 10.1136/thoraxjnl-2017-211189] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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35
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Bruton A, Lee A, Yardley L, Raftery J, Arden-Close E, Kirby S, Zhu S, Thiruvothiyur M, Webley F, Taylor L, Gibson D, Yao G, Stafford-Watson M, Versnel J, Moore M, George S, Little P, Djukanovic R, Price D, Pavord ID, Holgate ST, Thomas M. Physiotherapy breathing retraining for asthma: a randomised controlled trial. THE LANCET. RESPIRATORY MEDICINE 2018; 6:19-28. [PMID: 29248433 PMCID: PMC5757422 DOI: 10.1016/s2213-2600(17)30474-5] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/02/2017] [Accepted: 11/07/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Despite effective pharmacotherapy, asthma continues to impair quality of life for most patients. Non-pharmacological approaches, including breathing retraining, are therefore of great interest to patients. However, clinicians rarely advocate breathing retraining and access to this intervention is restricted for most patients due to the limited availability of suitable physiotherapists and poor integration of breathing retraining into standard care. We aimed to assess the effectiveness of a digital self-guided breathing retraining intervention. METHODS In this randomised controlled trial, we recruited patients from 34 general practices in the UK. Eligibility criteria for patients with asthma were broad, comprising a physician diagnosis of asthma, age of 16-70 years, receipt of at least one anti-asthma medication in the previous year, and impaired asthma-related quality of life (Asthma Quality of Life Questionnaire [AQLQ] score of <5·5). We developed a self-guided intervention, which was delivered as a DVD plus a printed booklet (DVDB). Participants were randomly assigned to receive either the DVDB intervention, three face-to-face breathing retraining sessions, or standard care, in a 2:1:2 ratio, for 12 months. Randomisation was achieved using the Southampton Clinical Trials Unit telephone randomisation service by use of random number generators. The primary outcome was the AQLQ score in the intention-to-treat population at 12 months. The trial was powered to show equivalence between the two active intervention groups, and superiority of both intervention groups over usual care. Secondary outcomes included patient-reported and physiological measures of asthma control, patient acceptability, and health-care costs. This trial was registered with International Standard Randomised Controlled Trial Number registry, number ISRCTN88318003. FINDINGS Between Nov 5, 2012 and Jan 28, 2014, invitations to participate in the study were sent to 15 203 patients with general practitioner-diagnosed asthma, of whom 655 were recruited into the study. AQLQ scores at 12 months were significantly higher in the DVDB group (mean 5·40, SD 1·14) than in the usual care group (5·12, SD 1·17; adjusted mean difference 0·28, 95% CI 0·11 to 0·44), and in the face-to-face group (5·33, SD 1·06) than in the usual care group (adjusted mean difference 0·24, 95% CI 0·04 to 0·44); AQLQ scores were similar between the DVDB group and the face-to-face group (0·04, 95% CI -0·16 to 0·24). There were no significant differences between the randomisation groups in FEV1 or fraction of exhaled nitric oxide. 744 adverse events occurred in 272 patients: 101 (39%) of 261 patients in the DVDB group, 55 (42%) of 132 patients in the face-to-face group, and 132 (50%) of 262 in the usual care group, with patients reporting one or more event. 11 (4%) patients in the DVDB group, four (3%) patients in the face-to-face group, and 20 (8%) patients in the usual care group had a serious adverse event. INTERPRETATION Breathing retraining programmes improve quality of life in patients with incompletely controlled asthma despite having little effect on lung function or airway inflammation. Such programmes can be delivered conveniently and cost-effectively as a self-guided digital audiovisual programme, so might also reduce health-care costs. FUNDING UK National Institute of Health Research.
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Affiliation(s)
- Anne Bruton
- Faculty of Health Sciences, University of Southampton, Southampton, UK; NIHR Southampton Biomedical Research Centre, Southampton, UK
| | - Amanda Lee
- Institute of Applied Health Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Lucy Yardley
- Faculty of Social, Human & Mathematical Sciences, University of Southampton, Southampton, UK
| | - James Raftery
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Emily Arden-Close
- Faculty of Science and Technology, Bournemouth University, Poole, Dorset, UK
| | - Sarah Kirby
- Faculty of Social, Human & Mathematical Sciences, University of Southampton, Southampton, UK
| | - Shihua Zhu
- Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Manimekalai Thiruvothiyur
- Institute of Applied Health Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Frances Webley
- NIHR Southampton Clinical Trials Unit, Southampton General Hospital, University of Southampton, Southampton, UK
| | - Lyn Taylor
- NIHR Southampton Clinical Trials Unit, Southampton General Hospital, University of Southampton, Southampton, UK
| | - Denise Gibson
- Therapy Department, Southampton General Hospital, University of Southampton, Southampton, UK
| | - Guiqing Yao
- Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Mark Stafford-Watson
- NIHR Collaboration for Leadership in Applied Health Research Centre Wessex, University of Southampton, Southampton, UK
| | | | - Michael Moore
- Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Steve George
- Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Paul Little
- Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Ratko Djukanovic
- Faculty of Medicine, University of Southampton, Southampton, UK; NIHR Southampton Biomedical Research Centre, Southampton, UK
| | - David Price
- Academic Primary Care, Division of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
| | - Ian D Pavord
- Respiratory Medicine Unit and Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | | | - Mike Thomas
- NIHR Southampton Biomedical Research Centre, Southampton, UK; Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK; Asthma UK Centre for Applied Research, University of Edinburgh, Edinburgh, UK.
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Braido F, Chrystyn H, Baiardini I, Bosnic-Anticevich S, van der Molen T, Dandurand RJ, Chisholm A, Carter V, Price D. "Trying, But Failing" - The Role of Inhaler Technique and Mode of Delivery in Respiratory Medication Adherence. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2017; 4:823-32. [PMID: 27587316 DOI: 10.1016/j.jaip.2016.03.002] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 03/02/2016] [Accepted: 03/05/2016] [Indexed: 11/24/2022]
Abstract
Inhaled therapies are the backbone of asthma and chronic obstructive pulmonary disease management, helping to target therapy at the airways. Adherence to prescribed treatment is necessary to ensure achievement of the clinician's desired therapeutic effect. In the case of inhaled therapies, this requires patients' acceptance of their need for inhaled therapy together with successful mastery of the inhaler technique specific to their device(s). This article reviews a number of challenges and barriers that inhaled mode of delivery can pose to optimum adherence-to therapy initiation and, thereafter, to successful implementation and persistence. The potential effects on adherence of different categories of devices, their use in multiplicity, and the mixing of device categories are discussed. Common inhaler errors identified by the international Implementing Helping Asthma in Real People (iHARP) study are summarized, and adherence intervention opportunities for health care professionals are offered. Better knowledge of common errors can help practicing clinicians identify their occurrence among patients and prompt remedial actions, such as tailored education, inhaler technique retraining, and/or shared decision making with patients regarding suitable alternatives. Optimizing existing therapy delivery, or switching to a suitable alternative, can help avoid unnecessary escalation of treatment and health care resources.
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Affiliation(s)
- Fulvio Braido
- Respiratory and Allergy Diseases Clinic, Department of Internal Medicine, University of Genoa, IRCCS AOU San Martino-IST, Genoa, Italy.
| | | | - Ilaria Baiardini
- Respiratory and Allergy Diseases Clinic, Department of Internal Medicine, University of Genoa, IRCCS AOU San Martino-IST, Genoa, Italy
| | - Sinthia Bosnic-Anticevich
- Woolcock Institute of Medical Research, University of Sydney, NSW, Australia; Sydney Local Health District, Sydney, NSW, Australia
| | - Thys van der Molen
- Department of General Practice, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ronald J Dandurand
- Montreal Chest Institute & Meakins-Christie Laboratories, McGill University Health Centre, Montreal, QC, Canada
| | - Alison Chisholm
- The Respiratory Effectiveness Group, Oakington, Cambridge, United Kingdom
| | - Victoria Carter
- Optimum Patient Care, Unit 5-6, Oakington, Cambridge, United Kingdom
| | - David Price
- Centre of Academic Primary Care, University of Aberdeen, Aberdeen, United Kingdom
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Tamada T, Ichinose M. Leukotriene Receptor Antagonists and Antiallergy Drugs. Handb Exp Pharmacol 2017; 237:153-169. [PMID: 27826703 DOI: 10.1007/164_2016_72] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
As one of the candidates of the therapeutic strategy for asthma in addition to inhaled corticosteroids (ICS), leukotriene receptor antagonists (LTRAs) are known to be useful for long-term management of asthma patients complicated by allergic rhinitis (AR) or exercise-induced asthma (EIA). Currently available LTRAs are pranlukast hydrate, zafirlukast, and montelukast. These LTRAs have a bronchodilator action and inhibit airway inflammation, resulting in a significant improvement of asthma symptoms, respiratory function, inhalation frequency of as-needed inhaled β2-agonist, airway inflammation, airway hyperresponsiveness, dosage of ICSs, asthma exacerbations, and patients' QOL. Although cys-LTs are deeply associated with the pathogenesis of asthma, LTRAs alone are less effective compared with ICS. However, the effects of LTRAs in combination with ICS are the same as those of LABAs in combination with ICS in steroid-naïve asthmatic patients. Concerning antiallergy drugs other than LTRAs, some mediator-release suppressants, H1 histamine receptor antagonists (H1RAs), thromboxane A2 (TXA2) inhibitors/antagonists, and Th2 cytokine inhibitor had been used mainly in Japan until the late 1990s. However, the use of these agents rapidly decreased after ICS/long acting beta agonist (LABA) combination was introduced and recommended for the management of asthma in the early 2000s. The effectiveness of other antiallergic agents on asthma management seems to be quite limited, and the safety of oral antiallergic agents has not been demonstrated in fetuses during pregnancy. Further effectiveness studies are needed to determine the true value of these orally administered agents in combination with ICS as an anti-asthma treatment.
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Affiliation(s)
- Tsutomu Tamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
| | - Masakazu Ichinose
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
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Thomas M, Bruton A, Little P, Holgate S, Lee A, Yardley L, George S, Raftery J, Versnel J, Price D, Pavord I, Djukanovic R, Moore M, Kirby S, Yao G, Zhu S, Arden-Close E, Thiruvothiyur M, Webley F, Stafford-Watson M, Dixon E, Taylor L. A randomised controlled study of the effectiveness of breathing retraining exercises taught by a physiotherapist either by instructional DVD or in face-to-face sessions in the management of asthma in adults. Health Technol Assess 2017; 21:1-162. [PMID: 28944752 PMCID: PMC5632761 DOI: 10.3310/hta21530] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Asthma control is suboptimal, resulting in quality of life (QoL) impairment and costs. Breathing retraining exercises have evidence of effectiveness as adjuvant treatment, but are infrequently used. OBJECTIVES To transfer the contents of a brief (three-session) physiotherapist-delivered breathing retraining programme to a digital versatile disc (DVD) and booklet format; to compare the effectiveness of the self-guided intervention with that of 'face-to-face' physiotherapy and usual care for QoL and other asthma-related outcomes; to perform a health economic assessment of both interventions; and to perform a process evaluation using quantitative and qualitative methods. DESIGN Parallel-group three-arm randomised controlled trial. SETTING General practice surgeries in the UK. PARTICIPANTS In total, 655 adults currently receiving asthma treatment with impaired asthma-related QoL were randomly allocated to the DVD (n = 261), physiotherapist (n = 132) and control (usual care) (n = 262) arms in a 2 : 1 : 2 ratio. It was not possible to blind participants but data collection and analysis were performed blinded. INTERVENTIONS Physiotherapy-based breathing retraining delivered through three 'face-to-face' respiratory physiotherapist sessions or a self-guided programme (DVD plus our theory-based behaviour change booklet) developed by the research team, with a control of usual care. MAIN OUTCOME MEASURES The primary outcome measure was asthma-specific QoL, measured using the Asthma Quality of Life Questionnaire (AQLQ). Secondary outcomes included asthma symptom control [Asthma Control Questionnaire (ACQ)], psychological state [Hospital Anxiety and Depression Scale (HADS)], hyperventilation symptoms (Nijmegen questionnaire), generic QoL [EuroQol-5 Dimensions (EQ-5D)], assessments of airway physiology (spirometry) and inflammation (exhaled nitric oxide) and health resource use and costs. Assessments were carried out at baseline and at 3, 6 and 12 months post randomisation. Patient engagement and experience were also assessed using quantitative and qualitative methods. RESULTS Primary efficacy analysis was between-group comparison of changes in AQLQ scores from baseline to 12 months in the intention-to-treat population with adjustments for prespecified covariates. Significant improvements occurred in the DVD group compared with the control group [adjusted mean difference 0.28, 95% confidence interval (CI) 0.11 to 0.44; p < 0.001] and in the face-to-face physiotherapy group compared with the control group (adjusted mean difference 0.24, 95% CI 0.04 to 0.44; p < 0.05), with equivalence between the DVD and the face-to-face physiotherapy groups (adjusted mean difference 0.04, 95% CI -0.16 to 0.24). In all sensitivity analyses, both interventions remained significantly superior to the control and equivalence between the interventions was maintained. In other questionnaire outcome measures and in the physiological measures assessed, there were no significant between-group differences. Process evaluations showed that participants engaged well with both of the active interventions, but that some participants in the DVD arm would have liked to receive tuition from a professional. Asthma health-care costs were lower in both intervention arms than in the control group, indicating 'dominance' for both of the interventions compared with the control, with lowest costs in the DVD arm. The rate of adverse events was lower in the DVD and face-to-face physiotherapy groups than in the control group. CONCLUSIONS Only 10% of the potentially eligible population responded to the study invitation. However, breathing retraining exercises improved QoL and reduced health-care costs in adults with asthma whose condition remains uncontrolled despite standard pharmacological therapy, were engaged with well by patients and can be delivered effectively as a self-guided intervention. The intervention should now be transferred to an internet-based platform and implementation studies performed. Interventions for younger patients should be developed and trialled. TRIAL REGISTRATION Current Controlled Trials ISRCTN88318003. FUNDING This project was primarily funded by the NIHR Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 21, No. 53. See the NIHR Journals Library website for further project information. Additional financial support was received from Comprehensive Local Research Networks.
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Affiliation(s)
- Mike Thomas
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Anne Bruton
- Faculty of Health Sciences, University of Southampton, Southampton, UK
| | - Paul Little
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Stephen Holgate
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Amanda Lee
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
| | - Lucy Yardley
- School of Psychology, University of Southampton, Southampton, UK
| | - Steve George
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - James Raftery
- Faculty of Medicine, University of Southampton, Southampton, UK
| | | | - David Price
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
| | - Ian Pavord
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - Michael Moore
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Sarah Kirby
- School of Psychology, University of Southampton, Southampton, UK
| | - Guiqing Yao
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Shihua Zhu
- Faculty of Medicine, University of Southampton, Southampton, UK
| | | | | | - Frances Webley
- Southampton Clinical Trials Unit, University of Southampton, Southampton, UK
| | | | - Elizabeth Dixon
- Southampton Clinical Trials Unit, University of Southampton, Southampton, UK
| | - Lynda Taylor
- Southampton Clinical Trials Unit, University of Southampton, Southampton, UK
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Ernst P, Ernst G. Neuropsychiatric adverse effects of montelukast in children. Eur Respir J 2017; 50:50/2/1701020. [PMID: 28818877 DOI: 10.1183/13993003.01020-2017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 05/26/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Pierre Ernst
- McGill University, Montreal, QC, Canada .,Lady Davis Research Institute, Jewish General Hospital, Montreal, QC, Canada
| | - Geneviève Ernst
- University of British Columbia, Vancouver, BC, CanadaDept of Pediatrics, BC Children's Hospital, Vancouver, BC, Canada
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Benard B, Bastien V, Vinet B, Yang R, Krajinovic M, Ducharme FM. Neuropsychiatric adverse drug reactions in children initiated on montelukast in real-life practice. Eur Respir J 2017; 50:50/2/1700148. [PMID: 28818882 DOI: 10.1183/13993003.00148-2017] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/20/2017] [Indexed: 11/05/2022]
Abstract
Although montelukast is generally well tolerated, postmarketing studies have reported serious neuropsychiatric adverse drug reactions (ADRs) leading to a United States Food and Drug Administration black box warning. The objective of this study was to determine the incidence of neuropsychiatric ADRs leading to discontinuation of montelukast in asthmatic children.We conducted a retrospective cohort study in children aged 1-17 years initiated on montelukast. In a nested cohort study, children initiated on montelukast as monotherapy or adjunct therapy to inhaled corticosteroids (ICS) were matched to those initiated on ICS monotherapy. A non-leading parental interview served to ascertain the occurrence of any ADRs with any asthma medication, and circumstances related to, and evolution of, the event.Out of the 106 participants who initiated montelukast, most were male (58%), Caucasian (62%) with a median (interquartile range) age of 5 (3-8) years. The incidence (95% CI) of drug cessation due to neuropsychiatric ADRs was 16 (10-26)%, mostly occurring within 2 weeks. Most frequent ADRs were irritability, aggressiveness and sleep disturbances. The relative risk of neuropsychiatric ADRs associated with montelukast versus ICS was 12 (2-90).In the real-life setting, asthmatic children initiated on montelukast experienced a notable risk of neuropsychiatric ADRs leading to drug cessation, that is significantly higher than that associated with ICS.
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Affiliation(s)
- Brigitte Benard
- Clinical Research and Knowledge Transfer Unit on Childhood Asthma, Research Centre, CHU Sainte-Justine, Montreal, QC, Canada
| | - Valérie Bastien
- Clinical Research and Knowledge Transfer Unit on Childhood Asthma, Research Centre, CHU Sainte-Justine, Montreal, QC, Canada
| | - Benjamin Vinet
- Clinical Research and Knowledge Transfer Unit on Childhood Asthma, Research Centre, CHU Sainte-Justine, Montreal, QC, Canada
| | - Roger Yang
- Clinical Research and Knowledge Transfer Unit on Childhood Asthma, Research Centre, CHU Sainte-Justine, Montreal, QC, Canada
| | - Maja Krajinovic
- Dept of Pediatrics, University of Montreal, Montreal, QC, Canada
| | - Francine M Ducharme
- Clinical Research and Knowledge Transfer Unit on Childhood Asthma, Research Centre, CHU Sainte-Justine, Montreal, QC, Canada .,Dept of Pediatrics, University of Montreal, Montreal, QC, Canada.,Dept of Social and Preventive Medicine, University of Montreal, Montreal, QC, Canada
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Abstract
PURPOSE OF REVIEW We are in the era of rapid aging of the global population. Elderly asthmatic patients have an increased frequency of hospitalization and a high mortality rate. In this review, we focus on comorbidities and treatment issues in terms of the predictors of asthma control in the elderly. RECENT FINDINGS Some frequent comorbidities, such as chronic obstructive pulmonary disease, chronic sinusitis, obesity, and depression, are associated with uncontrolled asthma in elderly asthmatic patients. Smoking status in elderly asthmatic patients was associated with more frequent exacerbations. Management of comorbidities should be taken into account when we treat elderly asthmatic patients. Low treatment adherence, which is common in elderly asthmatic patients, predicts poor asthma control status. A poor knowledge about asthma, cognitive function impairment, and inappropriate inhaler technique result in low treatment adherence. Polypharmacy is associated with low treatment adherence, adverse drug reactions, and drug-drug interactions, and it is supposed to be a predictor of asthma control. SUMMARY Multifactorial assessments, including comorbidities, treatment adherence, and polypharmacy, are important for better asthma control in elderly asthmatic patients. Further studies on the strategy for the management of elderly asthmatic patients in a real-world setting are warranted.
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Inflammatory mediators mediate airway smooth muscle contraction through a G protein-coupled receptor-transmembrane protein 16A-voltage-dependent Ca 2+ channel axis and contribute to bronchial hyperresponsiveness in asthma. J Allergy Clin Immunol 2017; 141:1259-1268.e11. [PMID: 28754608 DOI: 10.1016/j.jaci.2017.05.053] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/27/2017] [Accepted: 05/19/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Allergic inflammation has long been implicated in asthmatic hyperresponsiveness of airway smooth muscle (ASM), but its underlying mechanism remains incompletely understood. Serving as G protein-coupled receptor agonists, several inflammatory mediators can induce membrane depolarization, contract ASM, and augment cholinergic contractile response. We hypothesized that the signal cascade integrating on membrane depolarization by the mediators might involve asthmatic hyperresponsiveness. OBJECTIVE We sought to investigate the signaling transduction of inflammatory mediators in ASM contraction and assess its contribution in the genesis of hyperresponsiveness. METHODS We assessed the capacity of inflammatory mediators to induce depolarization currents by electrophysiological analysis. We analyzed the phenotypes of transmembrane protein 16A (TMEM16A) knockout mice, applied pharmacological reagents, and measured the Ca2+ signal during ASM contraction. To study the role of the depolarization signaling in asthmatic hyperresponsiveness, we measured the synergistic contraction by methacholine and inflammatory mediators both ex vivo and in an ovalbumin-induced mouse model. RESULTS Inflammatory mediators, such as 5-hydroxytryptamin, histamine, U46619, and leukotriene D4, are capable of inducing Ca2+-activated Cl- currents in ASM cells, and these currents are mediated by TMEM16A. A combination of multiple analysis revealed that a G protein-coupled receptor-TMEM16A-voltage-dependent Ca2+ channel signaling axis was required for ASM contraction induced by inflammatory mediators. Block of TMEM16A activity may significantly inhibit the synergistic contraction of acetylcholine and the mediators and hence reduces hypersensitivity. CONCLUSIONS A G protein-coupled receptor-TMEM16A-voltage-dependent Ca2+ channel axis contributes to inflammatory mediator-induced ASM contraction and synergistically activated TMEM16A by allergic inflammatory mediators with cholinergic stimuli.
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Lipid Mediators of Allergic Disease: Pathways, Treatments, and Emerging Therapeutic Targets. Curr Allergy Asthma Rep 2017; 16:48. [PMID: 27333777 DOI: 10.1007/s11882-016-0628-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Bioactive lipids are critical regulators of inflammation. Over the last 75 years, these diverse compounds have emerged as clinically-relevant mediators of allergic disease pathophysiology. Animal and human studies have demonstrated the importance of lipid mediators in the development of asthma, allergic rhinitis, urticaria, anaphylaxis, atopic dermatitis, and food allergy. Lipids are critical participants in cell signaling events which influence key physiologic (bronchoconstriction) and immune phenomena (degranulation, chemotaxis, sensitization). Lipid-mediated cellular mechanisms including: (1) formation of structural support platforms (lipid rafts) for receptor signaling complexes, (2) activation of a diverse family of G-protein coupled receptors, and (3) mediating intracellular signaling cascades by acting as second messengers. Here, we review four classes of bioactive lipids (platelet activating factor, the leukotrienes, the prostanoids, and the sphingolipids) with special emphasis on lipid synthesis pathways and signaling, atopic disease pathology, and the ongoing development of atopy treatments targeting lipid mediator pathways.
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Hoxha M, Rovati GE, Cavanillas AB. The leukotriene receptor antagonist montelukast and its possible role in the cardiovascular field. Eur J Clin Pharmacol 2017; 73:799-809. [PMID: 28374082 DOI: 10.1007/s00228-017-2242-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/22/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Cysteinyl leukotrienes (LTC4, LTD4, and LTE4) are pro-inflammatory mediators of the 5-lipooxygenase (5-LO) pathway, that play an important role in bronchoconstriction, but can also enhance endothelial cell permeability and myocardial contractility, and are involved in many other inflammatory conditions. In the late 1990s, leukotriene receptor antagonists (LTRAs) were introduced in therapy for asthma and later on, approved for the relief of the symptoms of allergic rhinitis, chronic obstructive pulmonary disease, and urticaria. In addition, it has been shown that LTRAs may have a potential role in preventing atherosclerosis progression. PURPOSE The aims of this short review are to delineate the potential cardiovascular protective role of a LTRA, montelukast, beyond its traditional use, and to foster the design of appropriate clinical trials to test this hypothesis. RESULTS AND CONCLUSIONS What it is known about leukotriene receptor antagonists? •Leukotriene receptor antagonist, such as montelukast and zafirlukast, is used in asthma, COPD, and allergic rhinitis. • Montelukast is the most prescribed CysLT1 antagonist used in asthmatic patients. • Different in vivo animal studies have shown that leukotriene receptor antagonists can prevent the atherosclerosis progression, and have a protective role after cerebral ischemia. What we still need to know? • Today, there is a need for conducting clinical trials to assess the role of montelukast in reducing cardiovascular risk and to further understand the mechanism of action behind this effect.
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Affiliation(s)
- Malvina Hoxha
- Department of Chemical, Toxicological and Pharmacological Evaluation of Drugs, Catholic University Our Lady of Good Counsel, Rruga. D. Hoxha, Tirana, Albania.
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9-20133, Milan, Italy.
| | - G Enrico Rovati
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Via Balzaretti, 9-20133, Milan, Italy
| | - Aurora Bueno Cavanillas
- IBS Granada, University of Granada, CIBER of Epidemiology and Public Health (CIBERESP), Granada, Spain
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Ichinose M, Sugiura H, Nagase H, Yamaguchi M, Inoue H, Sagara H, Tamaoki J, Tohda Y, Munakata M, Yamauchi K, Ohta K. Japanese guidelines for adult asthma 2017. Allergol Int 2017; 66:163-189. [PMID: 28196638 DOI: 10.1016/j.alit.2016.12.005] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Indexed: 11/30/2022] Open
Abstract
Adult bronchial asthma is characterized by chronic airway inflammation, and presents clinically with variable airway narrowing (wheezes and dyspnea) and cough. Long-standing asthma induces airway remodeling, leading to intractable asthma. The number of patients with asthma has increased; however, the number of patients who die of asthma has decreased (1.2 per 100,000 patients in 2015). The goal of asthma treatment is to enable patients with asthma to attain normal pulmonary function and lead a normal life, without any symptoms. A good relationship between physicians and patients is indispensable for appropriate treatment. Long-term management by therapeutic agents and elimination of the causes and risk factors of asthma are fundamental to its treatment. Four steps in pharmacotherapy differentiate between mild and intensive treatments; each step includes an appropriate daily dose of an inhaled corticosteroid, varying from low to high levels. Long-acting β2-agonists, leukotriene receptor antagonists, sustained-release theophylline, and long-acting muscarinic antagonist are recommended as add-on drugs, while anti-immunoglobulin E antibody and oral steroids are considered for the most severe and persistent asthma related to allergic reactions. Bronchial thermoplasty has recently been developed for severe, persistent asthma, but its long-term efficacy is not known. Inhaled β2-agonists, aminophylline, corticosteroids, adrenaline, oxygen therapy, and other approaches are used as needed during acute exacerbations, by choosing treatment steps for asthma in accordance with the severity of exacerbations. Allergic rhinitis, eosinophilic chronic rhinosinusitis, eosinophilic otitis, chronic obstructive pulmonary disease, aspirin-induced asthma, and pregnancy are also important issues that need to be considered in asthma therapy.
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Affiliation(s)
- Masakazu Ichinose
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Hisatoshi Sugiura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroyuki Nagase
- Division of Respiratory Medicine and Allergology, Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Masao Yamaguchi
- Division of Respiratory Medicine and Allergology, Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Hiromasa Inoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hironori Sagara
- Division of Allergology and Respiratory Medicine, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Jun Tamaoki
- First Department of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Yuji Tohda
- Department of Respiratory Medicine and Allergology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Mitsuru Munakata
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Kohei Yamauchi
- Division of Pulmonary Medicine, Allergy and Rheumatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Morioka, Japan
| | - Ken Ohta
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
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Horwitz RI, Singer BH. Why evidence-based medicine failed in patient care and medicine-based evidence will succeed. J Clin Epidemiol 2017; 84:14-17. [DOI: 10.1016/j.jclinepi.2017.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chauhan BF, Jeyaraman MM, Singh Mann A, Lys J, Abou‐Setta AM, Zarychanski R, Ducharme FM. Addition of anti-leukotriene agents to inhaled corticosteroids for adults and adolescents with persistent asthma. Cochrane Database Syst Rev 2017; 3:CD010347. [PMID: 28301050 PMCID: PMC6464690 DOI: 10.1002/14651858.cd010347.pub2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Asthma management guidelines recommend low-dose inhaled corticosteroids (ICS) as first-line therapy for adults and adolescents with persistent asthma. The addition of anti-leukotriene agents to ICS offers a therapeutic option in cases of suboptimal control with daily ICS. OBJECTIVES To assess the efficacy and safety of anti-leukotriene agents added to ICS compared with the same dose, an increased dose or a tapering dose of ICS (in both arms) for adults and adolescents 12 years of age and older with persistent asthma. Also, to determine whether any characteristics of participants or treatments might affect the magnitude of response. SEARCH METHODS We identified relevant studies from the Cochrane Airways Group Specialised Register of Trials, which is derived from systematic searches of bibliographic databases including the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, PsycINFO, the Allied and Complementary Medicine Database (AMED), the Cumulative Index to Nursing and Allied Health Literature (CINAHL) and the trial registries clinicaltrials.gov and ICTRP from inception to August 2016. SELECTION CRITERIA We searched for randomised controlled trials (RCTs) of adults and adolescents 12 years of age and older on a maintenance dose of ICS for whom investigators added anti-leukotrienes to the ICS and compared treatment with the same dose, an increased dose or a tapering dose of ICS for at least four weeks. DATA COLLECTION AND ANALYSIS We used standard methods expected by Cochrane. The primary outcome was the number of participants with exacerbations requiring oral corticosteroids (except when both groups tapered the dose of ICS, in which case the primary outcome was the % reduction in ICS dose from baseline with maintained asthma control). Secondary outcomes included markers of exacerbation, lung function, asthma control, quality of life, withdrawals and adverse events. MAIN RESULTS We included in the review 37 studies representing 6128 adult and adolescent participants (most with mild to moderate asthma). Investigators in these studies used three leukotriene receptor antagonists (LTRAs): montelukast (n = 24), zafirlukast (n = 11) and pranlukast (n = 2); studies lasted from four weeks to five years. Anti-leukotrienes and ICS versus same dose of ICSOf 16 eligible studies, 10 studies, representing 2364 adults and adolescents, contributed data. Anti-leukotriene agents given as adjunct therapy to ICS reduced by half the number of participants with exacerbations requiring oral corticosteroids (risk ratio (RR) 0.50, 95% confidence interval (CI) 0.29 to 0.86; 815 participants; four studies; moderate quality); this is equivalent to a number needed to treat for additional beneficial outcome (NNTB) over six to 16 weeks of 22 (95% CI 16 to 75). Only one trial including 368 participants reported mortality and serious adverse events, but events were too infrequent for researchers to draw a conclusion. Four trials reported all adverse events, and the pooled result suggested little difference between groups (RR 1.06, 95% CI 0.92 to 1.22; 1024 participants; three studies; moderate quality). Investigators noted between-group differences favouring the addition of anti-leukotrienes for morning peak expiratory flow rate (PEFR), forced expiratory volume in one second (FEV1), asthma symptoms and night-time awakenings, but not for reduction in β2-agonist use or evening PEFR. Anti-leukotrienes and ICS versus higher dose of ICSOf 15 eligible studies, eight studies, representing 2008 adults and adolescents, contributed data. Results showed no statistically significant difference in the number of participants with exacerbations requiring oral corticosteroids (RR 0.90, 95% CI 0.58 to 1.39; 1779 participants; four studies; moderate quality) nor in all adverse events between groups (RR 0.96, 95% CI 0.89 to 1.03; 1899 participants; six studies; low quality). Three trials reported no deaths among 834 participants. Results showed no statistically significant differences in lung function tests including morning PEFR and FEV1 nor in asthma control measures including use of rescue β2-agonists or asthma symptom scores. Anti-leukotrienes and ICS versus tapering dose of ICSSeven studies, representing 1150 adults and adolescents, evaluated the combination of anti-leukotrienes and tapering-dose of ICS compared with tapering-dose of ICS alone and contributed data. Investigators observed no statistically significant difference in % change from baseline ICS dose (mean difference (MD) -3.05, 95% CI -8.13 to 2.03; 930 participants; four studies; moderate quality), number of participants with exacerbations requiring oral corticosteroids (RR 0.46, 95% CI 0.20 to 1.04; 542 participants; five studies; low quality) or all adverse events (RR 0.95, 95% CI 0.83 to 1.08; 1100 participants; six studies; moderate quality). Serious adverse events occurred more frequently among those taking anti-leukotrienes plus tapering ICS than in those taking tapering doses of ICS alone (RR 2.44, 95% CI 1.52 to 3.92; 621 participants; two studies; moderate quality), but deaths were too infrequent for researchers to draw any conclusions about mortality. Data showed no improvement in lung function nor in asthma control measures. AUTHORS' CONCLUSIONS For adolescents and adults with persistent asthma, with suboptimal asthma control with daily use of ICS, the addition of anti-leukotrienes is beneficial for reducing moderate and severe asthma exacerbations and for improving lung function and asthma control compared with the same dose of ICS. We cannot be certain that the addition of anti-leukotrienes is superior, inferior or equivalent to a higher dose of ICS. Scarce available evidence does not support anti-leukotrienes as an ICS sparing agent, and use of LTRAs was not associated with increased risk of withdrawals or adverse effects, with the exception of an increase in serious adverse events when the ICS dose was tapered. Information was insufficient for assessment of mortality.
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Affiliation(s)
- Bhupendrasinh F Chauhan
- Children’s Hospital Research Institute of ManitobaBiology of Breathing GroupWinnipegCanada
- University of ManitobaCollege of PharmacyWinnipegMBCanada
- University of ManitobaKnowledge Synthesis Platform, George and Fay Yee Centre for Healthcare InnovationWinnipegCanada
- University of MontrealDepartment of PaediatricsMontrealCanada
| | - Maya M Jeyaraman
- University of ManitobaKnowledge Synthesis Platform, George and Fay Yee Centre for Healthcare InnovationWinnipegCanada
| | - Amrinder Singh Mann
- University of ManitobaKnowledge Synthesis Platform, George and Fay Yee Centre for Healthcare InnovationWinnipegCanada
| | - Justin Lys
- University of ManitobaKnowledge Synthesis Platform, George and Fay Yee Centre for Healthcare InnovationWinnipegCanada
| | - Ahmed M Abou‐Setta
- University of ManitobaKnowledge Synthesis Platform, George and Fay Yee Centre for Healthcare InnovationWinnipegCanada
| | - Ryan Zarychanski
- University of ManitobaKnowledge Synthesis Platform, George and Fay Yee Centre for Healthcare InnovationWinnipegCanada
- University of ManitobaCommunity Health SciencesWinnipegMBCanadaR3A 1R9
- CancerCare ManitobaDepartment of Haematology and Medical OncologyWinnipegCanadaR3E 0V9
- University of ManitobaDepartment of Internal MedicineWinnipegCanada
| | - Francine M Ducharme
- University of MontrealDepartment of PaediatricsMontrealCanada
- CHU Sainte‐JustineResearch CentreMontrealCanada
- University of MontrealDepartment of Social and Preventive MedicineMontrealCanada
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Individualized therapy for persistent asthma in young children. J Allergy Clin Immunol 2016; 138:1608-1618.e12. [PMID: 27777180 DOI: 10.1016/j.jaci.2016.09.028] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/25/2016] [Accepted: 09/09/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND Phenotypic presentations in young children with asthma are varied and might contribute to differential responses to asthma controller medications. METHODS The Individualized Therapy for Asthma in Toddlers study was a multicenter, randomized, double-blind, double-dummy clinical trial in children aged 12 to 59 months (n = 300) with asthma necessitating treatment with daily controller (Step 2) therapy. Participants completed a 2- to 8-week run-in period followed by 3 crossover periods with daily inhaled corticosteroids (ICSs), daily leukotriene receptor antagonists, and as-needed ICS treatment coadministered with albuterol. The primary outcome was differential response to asthma medication based on a composite measure of asthma control. The primary analysis involved 2 stages: determination of differential response and assessment of whether 3 prespecified features (aeroallergen sensitization, previous exacerbations, and sex) predicted a differential response. RESULTS Seventy-four percent (170/230) of children with analyzable data had a differential response to the 3 treatment strategies. Within differential responders, the probability of best response was highest for a daily ICS and was predicted by aeroallergen sensitization but not exacerbation history or sex. The probability of best response to daily ICS was further increased in children with both aeroallergen sensitization and blood eosinophil counts of 300/μL or greater. In these children daily ICS use was associated with more asthma control days and fewer exacerbations compared with the other treatments. CONCLUSIONS In young children with asthma necessitating Step 2 treatment, phenotyping with aeroallergen sensitization and blood eosinophil counts is useful for guiding treatment selection and identifies children with a high exacerbation probability for whom treatment with a daily ICS is beneficial despite possible risks of growth suppression.
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Pyasi K, Tufvesson E, Moitra S. Evaluating the role of leukotriene-modifying drugs in asthma management: Are their benefits 'losing in translation'? Pulm Pharmacol Ther 2016; 41:52-59. [PMID: 27651322 DOI: 10.1016/j.pupt.2016.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 09/13/2016] [Accepted: 09/16/2016] [Indexed: 02/06/2023]
Abstract
Leukotrienes (LTs) initiate a cascade of reactions that cause bronchoconstriction and inflammation in asthma. LT-modifying drugs have been proved very effective to reduce inflammation and associated exacerbation however despite some illustrious clinical trials the usage of these drugs remains overlooked because the evidence to support their utility in asthma management has been mixed and varied between studies. Although, there are plenty of evidences which suggest that the leukotriene-modifying drugs provide consistent improvement even after just the first oral dose and reduce asthma exacerbations, the beneficial effect of these drugs has remained sparse and widely debated. And these beneficial effects are often overlooked because most of the clinical studies include a mixed population of asthmatics who do not respond to LT-modifiers equally. Therefore, in the present era of personalized medicine, it is important to properly stratify the patients and non-invasive measurements of biomarkers may warrant the possibility to characterize biological/pathological pathway to direct treatment to those who will benefit from it. Endotyping based on individual's leukotriene levels should probably ascertain a subgroup of patients that would clearly benefit from the treatment even though the trial fails to show overall significance. In this article, we have methodically evaluated contemporary literature describing the efficacy of LT-modifying drugs in the management of asthma and highlighted the importance of phenotyping the asthmatics for better treatment outcomes.
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Affiliation(s)
- Kanchan Pyasi
- Molecular Respiratory Research Laboratory, Chest Research Foundation, Pune, India
| | - Ellen Tufvesson
- Department of Respiratory Medicine and Allergology, Lund University, Lund, Sweden
| | - Subhabrata Moitra
- Department of Respiratory Medicine and Allergology, Lund University, Lund, Sweden; Department of Pneumology, Allergy and Asthma Research Centre, Kolkata, India.
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Marcello C, Carlo L. Asthma phenotypes: the intriguing selective intervention with Montelukast. Asthma Res Pract 2016; 2:11. [PMID: 27965779 PMCID: PMC5142440 DOI: 10.1186/s40733-016-0026-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/25/2016] [Indexed: 01/19/2023] Open
Abstract
Asthma is a heterogeneous disease, usually characterized by chronic airway inflammation and a variable course associated with various underlying mechanisms that can differ between individuals. Patients with asthma can therefore exhibit different phenotypes, a term used to define the observable characteristics of an organism resulting from the interaction between its genetic makeup and the environment. The heterogeneity of asthma has received a large amount of attention in the last few years in order to better tailor treatment according to the different clinical and biological phenotypes of the disease. Specific asthma phenotypes may require an approach to treatment sometimes different from that recommended by current guidelines, so a personalized approach to asthma pharmacotherapy is recommended. Growing evidence suggests that leukotrienes play an important role in the pathogenesis of bronchial asthma. The mechanisms of action of leukotriene-receptor antagonists theoretically predict a good response in some asthma “phenotypes”.In this article we have performed an analysis of the recent literature (controlled clinical trials and real-life studies) about a possible selective intervention with Montelukast in specific asthma phenotypes.
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Affiliation(s)
| | - Lombardi Carlo
- Departmental Unit of Allergology, Immunology & Pulmonary Diseases, Fondazione Poliambulanza, Via Bissolati, 57, 25124 Brescia, Italy
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