Active clinical trials for "Pulmonary Eosinophilia"

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).

This study will recruit patients who are being prescribed Mepolizumab as part of their standard clinical care for the treatment of severe eosinophilic asthma. Over the course of their treatment, research data (questionnaires) and research samples (blood, breath and urine) will be collected in parallel to standard clinical measurements. The data and samples will be investigated to help better understand how Mepolizumab works, why it doesn't work in certain patients and why it works very well in others. This will help prescribers better identify patients that will benefit from Mepolizumab.

A prospective multi-centre, non-interventional observational study, that will be conducted in several centers in Greece for a 2-year time period (completion date December 2020), to describe patient characteristics, medical history, and the clinical benefit of mepolizumab in patients with severe eosinophilic asthma newly initiated to the drug.

In this project the investigators will look for auto-antibodies to relevant proteins both in native form and importantly in post-translationally modified forms. Potential modified auto-antigens are eosinophil proteins (analogous to the cytoplasmic neutrophil proteins identified in vasculitides such as Granulomatosis with Polyangiitis (formerly known as Wegener's granulomatosis) and alternatively structural proteins such as collagen V. As well as advancing the understanding of asthma pathology, identifying a serum auto-antibody that could then be used as a clinical blood test, analogous to anti-cyclic citrullinated peptide (CCP) antibodies in rheumatoid arthritis, may revolutionise diagnosis of severe eosinophilic asthma and Eosinophilic Granulomatosis with Polyangiitis (EGPA). There is a considerable burden of undiagnosed severe eosinophilic asthma in part due to difficulties in definitive diagnosis and a diagnostic blood test would help diagnose these patients, allowing them to receive necessary treatment.

Acute eosinophilic pneumonia (AEP) is diagnosed by cell count analysis of bronchoalveolar lavage fluid. However, the performance of bronchoscopy is not easy for patients with AEP, because they usually have hypoxia. Exhaled nitric oxide (FeNO) is usually elevated in the patients with eosinophilic inflammation such as asthma, but there is no previous studies FeNO in the patients with AEP. Investigators hypothesized that FeNO elevated significantly in patients with AEP, and FeNO can be used as non-invasive diagnostic method in patients who are clinically suspected with AEP, especially when the performance of bronchoscopy is difficult.