Characterization of T2-Low and T2-High Asthma Phenotypes in Real-Life

Asthma is a heterogeneous and complex condition characterized by chronic airway inflammation, which may be clinically stratified into three main phenotypes: type 2 (T2) low, T2-high allergic, and T2-high non-allergic asthma. This real-world study investigated whether phenotyping patients with asthma...

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Main Authors: Fabio Luigi Massimo Ricciardolo, Andrea Elio Sprio, Andrea Baroso, Fabio Gallo, Elisa Riccardi, Francesca Bertolini, Vitina Carriero, Elisa Arrigo, Giorgio Ciprandi
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/9/11/1684
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author Fabio Luigi Massimo Ricciardolo
Andrea Elio Sprio
Andrea Baroso
Fabio Gallo
Elisa Riccardi
Francesca Bertolini
Vitina Carriero
Elisa Arrigo
Giorgio Ciprandi
author_facet Fabio Luigi Massimo Ricciardolo
Andrea Elio Sprio
Andrea Baroso
Fabio Gallo
Elisa Riccardi
Francesca Bertolini
Vitina Carriero
Elisa Arrigo
Giorgio Ciprandi
author_sort Fabio Luigi Massimo Ricciardolo
collection DOAJ
description Asthma is a heterogeneous and complex condition characterized by chronic airway inflammation, which may be clinically stratified into three main phenotypes: type 2 (T2) low, T2-high allergic, and T2-high non-allergic asthma. This real-world study investigated whether phenotyping patients with asthma using non-invasive parameters could be feasible to characterize the T2-low and T2-high asthma phenotypes in clinical practice. This cross-sectional observational study involved asthmatic outpatients (<i>n</i> = 503) referring to the Severe Asthma Centre of the San Luigi Gonzaga University Hospital. Participants were stratified according to the patterns of T2 inflammation and atopic sensitization. Among outpatients, 98 (19.5%) patients had T2-low asthma, 127 (25.2%) T2-high non-allergic, and 278 (55.3%) had T2-high allergic phenotype. In comparison to T2-low, allergic patients were younger (OR 0.945, <i>p</i> < 0.001) and thinner (OR 0.913, <i>p</i> < 0.001), had lower smoke exposure (OR 0.975, <i>p</i> < 0.001) and RV/TLC% (OR 0.950, <i>p</i> < 0.001), higher prevalence of asthma severity grade 5 (OR 2.236, <i>p</i> < 0.05), more frequent rhinitis (OR 3.491, <i>p</i> < 0.001) and chronic rhinosinusitis with (OR 2.650, <i>p</i> < 0.001) or without (OR 1.919, <i>p</i> < 0.05) nasal polyps, but less common arterial hypertension (OR 0.331, <i>p</i> < 0.001). T2-high non-allergic patients had intermediate characteristics. Non-invasive phenotyping of asthmatic patients is possible in clinical practice. Identifying characteristics in the three main asthma phenotypes could pave the way for further investigations on useful biomarkers for precision medicine.
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spelling doaj.art-28e396e52d32412b85e279670b83542d2023-11-22T22:31:54ZengMDPI AGBiomedicines2227-90592021-11-01911168410.3390/biomedicines9111684Characterization of T2-Low and T2-High Asthma Phenotypes in Real-LifeFabio Luigi Massimo Ricciardolo0Andrea Elio Sprio1Andrea Baroso2Fabio Gallo3Elisa Riccardi4Francesca Bertolini5Vitina Carriero6Elisa Arrigo7Giorgio Ciprandi8Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, 10043 Turin, ItalyDepartment of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, 10043 Turin, ItalyDepartment of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, 10043 Turin, ItalyClinical Epidemiology Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, ItalyDepartment of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, 10043 Turin, ItalyDepartment of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, 10043 Turin, ItalyDepartment of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, 10043 Turin, ItalyDepartment of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, 10043 Turin, ItalyAllergy Clinic, Casa di Cura Villa Montallegro, 16145 Genoa, ItalyAsthma is a heterogeneous and complex condition characterized by chronic airway inflammation, which may be clinically stratified into three main phenotypes: type 2 (T2) low, T2-high allergic, and T2-high non-allergic asthma. This real-world study investigated whether phenotyping patients with asthma using non-invasive parameters could be feasible to characterize the T2-low and T2-high asthma phenotypes in clinical practice. This cross-sectional observational study involved asthmatic outpatients (<i>n</i> = 503) referring to the Severe Asthma Centre of the San Luigi Gonzaga University Hospital. Participants were stratified according to the patterns of T2 inflammation and atopic sensitization. Among outpatients, 98 (19.5%) patients had T2-low asthma, 127 (25.2%) T2-high non-allergic, and 278 (55.3%) had T2-high allergic phenotype. In comparison to T2-low, allergic patients were younger (OR 0.945, <i>p</i> < 0.001) and thinner (OR 0.913, <i>p</i> < 0.001), had lower smoke exposure (OR 0.975, <i>p</i> < 0.001) and RV/TLC% (OR 0.950, <i>p</i> < 0.001), higher prevalence of asthma severity grade 5 (OR 2.236, <i>p</i> < 0.05), more frequent rhinitis (OR 3.491, <i>p</i> < 0.001) and chronic rhinosinusitis with (OR 2.650, <i>p</i> < 0.001) or without (OR 1.919, <i>p</i> < 0.05) nasal polyps, but less common arterial hypertension (OR 0.331, <i>p</i> < 0.001). T2-high non-allergic patients had intermediate characteristics. Non-invasive phenotyping of asthmatic patients is possible in clinical practice. Identifying characteristics in the three main asthma phenotypes could pave the way for further investigations on useful biomarkers for precision medicine.https://www.mdpi.com/2227-9059/9/11/1684asthmainflammationasthma phenotypesreal-worldclinical practiceT2 low
spellingShingle Fabio Luigi Massimo Ricciardolo
Andrea Elio Sprio
Andrea Baroso
Fabio Gallo
Elisa Riccardi
Francesca Bertolini
Vitina Carriero
Elisa Arrigo
Giorgio Ciprandi
Characterization of T2-Low and T2-High Asthma Phenotypes in Real-Life
Biomedicines
asthma
inflammation
asthma phenotypes
real-world
clinical practice
T2 low
title Characterization of T2-Low and T2-High Asthma Phenotypes in Real-Life
title_full Characterization of T2-Low and T2-High Asthma Phenotypes in Real-Life
title_fullStr Characterization of T2-Low and T2-High Asthma Phenotypes in Real-Life
title_full_unstemmed Characterization of T2-Low and T2-High Asthma Phenotypes in Real-Life
title_short Characterization of T2-Low and T2-High Asthma Phenotypes in Real-Life
title_sort characterization of t2 low and t2 high asthma phenotypes in real life
topic asthma
inflammation
asthma phenotypes
real-world
clinical practice
T2 low
url https://www.mdpi.com/2227-9059/9/11/1684
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