Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease

Airway diseases were initially described by nonspecific patterns of symptoms, for example “dry and wheezy” and “wet and crackly”. The model airway disease is cystic fibrosis, which has progressed from nonspecific reactive treatments such as antibiotics for airway infection to molecular sub-endotype,...

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Autores principales:	Andrew Bush, Ian D. Pavord
Formato:	article
Lenguaje:	EN
Publicado:	European Respiratory Society 2021
Materias:	Diseases of the respiratory system RC705-779
Acceso en línea:	https://doaj.org/article/33deba64f26647cc9ad2ffcd05c36cb2
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spelling	oai:doaj.org-article:33deba64f26647cc9ad2ffcd05c36cb22021-11-24T07:45:28ZChallenging the paradigm: moving from umbrella labels to treatable traits in airway disease1810-68382073-473510.1183/20734735.0053-2021https://doaj.org/article/33deba64f26647cc9ad2ffcd05c36cb22021-09-01T00:00:00Zhttp://breathe.ersjournals.com/content/17/3/210053.fullhttps://doaj.org/toc/1810-6838https://doaj.org/toc/2073-4735Airway diseases were initially described by nonspecific patterns of symptoms, for example “dry and wheezy” and “wet and crackly”. The model airway disease is cystic fibrosis, which has progressed from nonspecific reactive treatments such as antibiotics for airway infection to molecular sub-endotype, proactive therapies with an unequivocal evidence base, early diagnosis, and biomarkers of treatment efficacy. Unfortunately, other airway diseases lag behind, not least because nonspecific umbrella labels such as “asthma” are considered to be diagnoses not mere descriptions. Pending the delineation of molecular sub-endotypes in other airway disease the concept of treatable traits, and consideration of airway disease in a wider context is preferable. A treatable trait is a characteristic amenable to therapy, with measurable benefits of treatment. This approach determines what pathology is actually present and treatable, rather than using umbrella labels. We determine if airway inflammation is present, and whether there is airway eosinophilia which will likely respond to inhaled corticosteroids; whether there is variable airflow obstruction due to bronchoconstriction which will respond to β2-agonists; and whether there is unsuspected underlying airway infection which should be treated with antibiotics unless there is an underlying endotype which can be addressed, as for example an immunodeficiency. The context of airway disease should also be extrapulmonary comorbidities, social and environmental factors, and a developmental perspective, particularly this last aspect if preventive strategies are being contemplated. This approach allows targeted treatment for maximal patient benefit, as well as preventing the discarding of therapies which are useful for appropriate subgroups of patients. Failure to appreciate this almost led to the discarding of valuable treatments such as prednisolone. Educational aims To use cystic fibrosis as a paradigm to show the benefits of the journey from nonspecific umbrella terms to specific endotypes and sub-endotypes, as a road map for other airway diseases to follow. Demonstrate that nonspecific labels to describe airway disease can and should be abandoned in favour of treatable traits to ensure diagnostic and therapeutic precision. Begin to learn to see airway disease in the context of extrapulmonary comorbidities, and social and environmental factors, as well as with a developmental perspective.Andrew BushIan D. PavordEuropean Respiratory SocietyarticleDiseases of the respiratory systemRC705-779ENBreathe, Vol 17, Iss 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Diseases of the respiratory system RC705-779
spellingShingle	Diseases of the respiratory system RC705-779 Andrew Bush Ian D. Pavord Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease
description	Airway diseases were initially described by nonspecific patterns of symptoms, for example “dry and wheezy” and “wet and crackly”. The model airway disease is cystic fibrosis, which has progressed from nonspecific reactive treatments such as antibiotics for airway infection to molecular sub-endotype, proactive therapies with an unequivocal evidence base, early diagnosis, and biomarkers of treatment efficacy. Unfortunately, other airway diseases lag behind, not least because nonspecific umbrella labels such as “asthma” are considered to be diagnoses not mere descriptions. Pending the delineation of molecular sub-endotypes in other airway disease the concept of treatable traits, and consideration of airway disease in a wider context is preferable. A treatable trait is a characteristic amenable to therapy, with measurable benefits of treatment. This approach determines what pathology is actually present and treatable, rather than using umbrella labels. We determine if airway inflammation is present, and whether there is airway eosinophilia which will likely respond to inhaled corticosteroids; whether there is variable airflow obstruction due to bronchoconstriction which will respond to β2-agonists; and whether there is unsuspected underlying airway infection which should be treated with antibiotics unless there is an underlying endotype which can be addressed, as for example an immunodeficiency. The context of airway disease should also be extrapulmonary comorbidities, social and environmental factors, and a developmental perspective, particularly this last aspect if preventive strategies are being contemplated. This approach allows targeted treatment for maximal patient benefit, as well as preventing the discarding of therapies which are useful for appropriate subgroups of patients. Failure to appreciate this almost led to the discarding of valuable treatments such as prednisolone. Educational aims To use cystic fibrosis as a paradigm to show the benefits of the journey from nonspecific umbrella terms to specific endotypes and sub-endotypes, as a road map for other airway diseases to follow. Demonstrate that nonspecific labels to describe airway disease can and should be abandoned in favour of treatable traits to ensure diagnostic and therapeutic precision. Begin to learn to see airway disease in the context of extrapulmonary comorbidities, and social and environmental factors, as well as with a developmental perspective.
format	article
author	Andrew Bush Ian D. Pavord
author_facet	Andrew Bush Ian D. Pavord
author_sort	Andrew Bush
title	Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease
title_short	Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease
title_full	Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease
title_fullStr	Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease
title_full_unstemmed	Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease
title_sort	challenging the paradigm: moving from umbrella labels to treatable traits in airway disease
publisher	European Respiratory Society
publishDate	2021
url	https://doaj.org/article/33deba64f26647cc9ad2ffcd05c36cb2
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Challenging the paradigm: moving from umbrella labels to treatable traits in airway disease

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