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Clinical Trial Summary

This study is aimed at evaluation of the efficacy of mepolizumab 100 mg SC every 4 weeks in patients with severe eosinophilic asthma who have been treated for at least 12 months in several Polish allergy/asthma centres under the same protocol. Target population to be recruited has been set at 130 subjects from at least 6 asthma centers throughout the country. Data on dempgraphics and asthma status will be collected using questionnaires at 3 time-points: pre-MEPO, after 24 weeks of MEPO and after 1 year of MEPO administration (some of the outcomes will be observed every 4 weeks). Primary endpoints will include: - Asthma exacerbations measured at qualification for the treatment (in the period of previous 52 weeks) and at the 24th and 52nd week of the treatment. - Oral Corticosteroids use dose (documented at qualification for the treatment and at the 24th and 52nd week of the treatment).


Clinical Trial Description

This study is aimed at evaluation of the efficacy of mepolizumab 100 mg SC every 4 weeks in patients with severe eosinophilic asthma who have been treated for at least 12 months in several Polish allergy/asthma centres under the same protocol. Retrospective multicentre observational study will involve 130 patients with severe eosinophilic asthma ( SEA ) who have been treated in six Severe Asthma Treatment Centres ( SATCs) in Poland. In each SATC all data available in the program questionnaires will be transferred to the Study Data Sheet (questionnaire), and will be send to the study coordinator within 5 months from the study beginning The start-up meeting including partners from all centres involved will be organized to discuss the study protocol and to unify data collection The evaluation parameters (exacerbations rate, OCS dose) will be analysed at least at three time points: pre-MEPO, after 24 weeks of MEPO and after 1 year of MEPO administration (some of the outcomes will be observed every 4 weeks, for the details see 'study endpoints' section). In addition the following parameters which are available in patients' records will be analysed: - ACQ-5 score (measured at qualification for the treatment and every 4 weeks thereafter) - AQLQ score (measured at qualification for the treatment and every 4 weeks thereafter) - Pre-bronchodilator FEV1 (measured at qualification for the treatment and every 4 weeks thereafter) Research activities will include: - collecting raw data from the clinical centres (paper version) and constructing a raw dataset (digital version), - data cleaning, computation of variables, - statistical analysis typical for pre-post study design (the statistical analysis will be outsourced to the specialized private institute). Clinical improvements observed at 24 weeks and at 52 weeks of treatment with Mepolizumab will be referred to the following characteristics of patients at baseline: - demographics, - presence of comorbidities including the atopic status, - concomitant pharmacotherapy, - clinical status, - eosinophilia. We will control for mepolizumab use regarding dose, treatment duration and dosing frequency as well as for the safety profile based on the AEs reporting in the medical documentation. Data Source / Data Collection Patients recruited to the study had been treated with mepolizumab between December 2017 and December 2019.All the data planned to be used in the proposed study were systematically collected in the form of the clinical documentation (paper version) and will be transferred in the study centres into the study. Data Sheets. Collaborating Researchers (Severe Asthma Centres' Leaders) will provide the data input into the dedicated online questionnaire. Study Population 130 Patients who were treated with mepolizumab in six severe-asthma clinics in Poland between December 2017 and December 2019 . In the drug program in Poland it was mandatory to conduct the control examinations at the 24th and 52nd week of the treatment . In the proposed study we will use this information to evaluate study endpoints. Only patients who have been treated for at least 52 weeks are included into the study Variables concerning the primary endpoints - Asthma exacerbations measured at qualification for the treatment (in the period of previous 52 weeks) and at the 24th and 52nd week of the treatment. - Oral Corticosteroids use dose (documented at qualification for the treatment and at the 24th and 52nd week of the treatment) Variables concerning the secondary endpoints: - ACQ-5 score (measured at qualification for the treatment and every 4 weeks thereafter) - AQLQ score (measured at qualification for the treatment and every 4 weeks thereafter) - Pre-bronchodilator FEV1 (measured at qualification for the treatment and every 4 weeks thereafter) - Blood eosinophil counts (measured at qualification for the treatment and at the 24th and 52nd week of the treatment) ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05091385
Study type Observational
Source Medical University of Lodz
Contact Marcin Kurowski, MD, PhD
Phone +48601365911
Email marcin.kurowski@umed.lodz.pl
Status Not yet recruiting
Phase
Start date November 1, 2021
Completion date December 31, 2021

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