PneumonPub Date : 2022-12-07DOI: 10.18332/pne/157014
P. Bakakos, E. Fouka, P. Galanakis, K. Katsoulis, K. Kostikas, S. Loukides, N. Mathioudakis, Konstantinos Porpodis, K. Samitas, P. Steiropoulos, E. Zervas
{"title":"Protocol, rationale and design of the PHOLLOW\u0000cross-sectional and retrospective chart review\u0000study to assess the prevalence and characterize the\u0000patient profile, clinical features and disease burden\u0000of type-2 low severe asthma in routine care settings\u0000in Greece","authors":"P. Bakakos, E. Fouka, P. Galanakis, K. Katsoulis, K. Kostikas, S. Loukides, N. Mathioudakis, Konstantinos Porpodis, K. Samitas, P. Steiropoulos, E. Zervas","doi":"10.18332/pne/157014","DOIUrl":"https://doi.org/10.18332/pne/157014","url":null,"abstract":"Type 2 (T2)-low severe asthma (SA) presents a distinct subpopulation for which, in lack of a consistent classification system, epidemiological and clinical outcome data remain unclear and therapeutic needs remain largely unmet. The aim of the PHOLLOW real-world study is to assess the prevalence and predictors of T2-low SA, and depict the patient profile, clinical features, treatment patterns and disease burden using clinical and patient-reported outcomes (PROs) in routine settings in Greece. This is a cross-sectional and retrospective chart review 2-part study that will enroll 600 adult outpatients with SA over a 1-year period by 20–30 asthma specialists. A new SA phenotype classification system and two different definitions proposed herein will be used to categorize patients into definite or possible T2-low (unlikely or least likely T2-high) SA, and definite/most likely or possible/likely T2-high SA, based on a composite measure of airway inflammation markers (blood eosinophil counts, fractional exhaled nitric oxide), allergic/atopic status and age-of-onset phenotype, taking into consideration the current receipt of biologic and/or maintenance oral corticosteroid treatment and response to it. Part A will collect top-level data for all participants to assess T2-low SA prevalence and predictors. T2-low SA patients will proceed to part B, where further data and PROs assessing asthma symptom control, quality of life, anxiety, depression, work productivity and activity impairment will be collected.","PeriodicalId":42353,"journal":{"name":"Pneumon","volume":"8 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90484706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}