Publications by authors named "Diego Bagnasco"

: Severe asthma is a respiratory condition, involving treatments (i.e., inhaled steroids, systemic steroids, hospitalization) capable of increasing significant carbon footprint, raising concerns about environmental sustainability in healthcare.

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Although 90% of asthmatic patients suffer from mild and moderate disease, little is known about the burden on health status and quality of life, the long-term trajectory of disease severity, and the socio-economic impact. The Mild Moderated Asthma Network of Italy (MANI) is a real-world, cross-sectional, prospective, observational cohort study designed to explore these issues. Here we aimed to provide an identikit of asthmatic patients receiving treatment according to GINA steps 1-4, and enrolled in the centers of excellence participating in the MANI.

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Background: Inhaled steroids dose reduction is a relevant goal in severe asthma management.

Research Question: We aimed to investigate ICS use trajectories and their clinical impact in severe asthma patients on benralizumab over 36 months.

Study Design And Methods: We conducted a retrospective real-life observational study including clinical and inflammatory parameters.

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Asthma is a chronic inflammatory disease characterized by airway hyperresponsiveness, variable airflow obstruction, and persistent inflammation. While its pathophysiology is well established, growing evidence highlights significant sex-based differences in its prevalence, severity, and treatment response. Epidemiological studies indicate that asthma is more common in prepubertal boys but shifts toward a female predominance after puberty, with adult women experiencing higher morbidity and greater healthcare utilization.

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In recent years, it was recognized that type-2 inflammation connects nasal polyposis and severe asthma (SA) in addition to other type-2 diseases. Thus, some biological drugs developed for SA appeared to exert a favourable effect also in nasal polyposis. So far, there are several trials supporting this concept; therefore, some monoclonal antibodies already used for SA were assessed also in chronic rhinosinusistis with nasal polyposis (CRSwNP), with promising results.

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Objectives: To prospectively evaluate the impact and the rapidity of the effect of mepolizumab on the ANCA-associated vasculitis patient-reported outcomes (AAV-PRO) questionnaire and patient global assessment (PtGA) in an international, multicentre cohort of patients with eosinophilic granulomatosis with polyangiitis (EGPA).

Methods: Patients with active EGPA initiating treatment with mepolizumab were included. PtGA and the AAV-PRO score were assessed at baseline and after 7, 14, 30, 90 and 180 days.

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Background: Asthma is a common condition among women of childbearing age, requiring careful management, particularly during pregnancy. Despite existing guidelines, significant gaps remain in asthma management during pregnancy, notably for women with moderate-to-severe asthma.

Aim: This study aimed to explore the awareness, limitations, and challenges of asthma management during childbearing age and pregnancy from both asthmatic women (AW) and physician perspectives in Italy.

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: Severe allergic asthma is usually treated with omalizumab; however, this drug may not be effective for every patient. By its action, dupilumab could be an alternative in these patients. The objective of this study was to evaluate the efficacy of dupilumab in patients with severe allergic asthma, non-responsive to omalizumab, according to the maintenance of their oral corticosteroid (OCS) dose, an exacerbation rate decrease, or poor control of the disease, despite optimized treatment.

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Background: A transient and usually asymptomatic increase in blood eosinophil count (BEC) associated with dupilumab treatment has been described. Predicting factors related to the increase in BEC and the occurrence of symptoms are still poorly investigated.

Objective: To investigate frequency, timing, duration, clinical relevance, and potential predictors of the increase in BEC in a real-life multicenter cohort of patients affected by asthma and/or chronic rhinosinusitis with nasal polyps (CRSwNP) treated with dupilumab.

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Purpose: Immunoglobulin G4-related disease (IgG4-RD) is a complex systemic fibroinflammatory condition with different clinical manifestations affecting multiple organ systems. Despite its rarity, the disease presents diagnostic and therapeutic challenges due to its mimicry of malignancies and other immune-mediated disorders. The 2019 American College of Rheumatology/European League Against Rheumatism Classification Criteria for IgG4-Related Disease is the current state of art to confirm the diagnosis of IgG4-RD even in the absence of histological analysis.

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Background: Global Initiative for Asthma (GINA) recently recommends clinicians to reduce inhaled corticosteroid doses in patients with severe asthma who respond positively to monoclonal antibodies (MAbs).

Objective: As we operated this reduction even before the document, we analysed our cohort of subjects on treatment with a MAbs for at least 24 months.

Methods: Data stored in our electronic archive and at the 6-month follow-up (FU) were registered and patients' adherence to asthma therapy was derived by electronic pharmacy claim database.

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Randomized controlled trials have demonstrated responses to clinical parameters, but a significant proportion of allergy patients in real-life settings would have been excluded from such studies. Therefore, real-world research is needed, and there is a growing body of information on allergen immunotherapy's long-term effectiveness and safety. Real-world evidence can be a valuable instrument to better understand the patient's journey and the effectiveness and safety of therapies.

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In the field of severe asthma, the concept of disease control has recently been integrated by the one of clinical remission. With this new concept, we move on to analyze the efficacy of therapy on multiple parameters simultaneously, starting with the mandatory discontinuation of the systemic glucocorticoids, to which is added the effect on exacerbations, respiratory function, and symptoms control. The Italian severe asthma registry SANI (Severe Asthma Network Italy) drafted criteria for the definition of disease remission, allowing patients to be classified into two groups, partial and complete remission.

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Thymic stromal lymphopoietin (TSLP), is a protein belonging to a class of epithelial cytokines commonly called alarmins, which also includes IL-25 and IL-33. Functionally, TSLP is a key player in the immune response to environmental insults, initiating a number of downstream inflammatory pathways. TSLP performs its role by binding to a high-affinity heteromeric complex composed of the thymic stromal lymphopoietin receptor (TSLPR) chain and IL-7Rα.

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Article Synopsis
  • - Benralizumab effectively manages severe eosinophilic asthma (SEA), showing a significant 89% reduction in exacerbation rates and a 440 mL increase in forced expiratory volume (FEV) over 36 months in a study of 108 Italian patients.
  • - The treatment led to notable improvements in asthma control and sinonasal symptoms for patients with chronic rhinosinusitis with nasal polyposis, with 84.31% achieving partial or complete clinical remission.
  • - Results indicate benralizumab may act as a long-term disease-modifying drug for SEA, with most patients able to reduce or stop their oral corticosteroids, but further research is needed to evaluate its long-term safety and effectiveness.
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Background: In its severe form, where possible, asthma is treated using biological drugs in order to reduce, as much as possible, the use of systemic steroids. Mepolizumab is effective for severe asthma based on key outcomes such as exacerbation and steroid dependence. Its efficacy in terms of the criteria for clinical remission in the short and long term has become of interest.

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Objective: Patients' perceptions of asthma symptoms, and attitudes regarding diagnosis and management, can affect their ability to reach good asthma control. The aim of the study was to explore patients' perceptions of asthma management, with focus on treatment with oral corticosteroids (OCS).

Methods: A DOXAPHARMA survey was conducted.

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Dupilumab is currently approved for the treatment of Type 2 severe asthma and chronic rhinosinusitis with nasal polyps (CRSwNP). Few studies have specifically reported on dupilumab efficacy on asthma outcomes as a primary objective in a real-life setting, in patients with and without CRSwNP. Our study aimed to explore the efficacy of dupilumab on functional, inflammatory, and patient-reported outcomes in asthma patients across different disease phenotypes and severity, including mild-to-moderate asthma coexisting with CRSwNP.

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Chronic rhinosinusitis (CRS) is a complex and heterogeneous disorder whose etiopathogenetic picture is not yet completely known and is classically divided into CRS with (CRSwNP) and without nasal polyps (CRSsNP). But today the distinction is made with type 2 and nontype 2 variants. A rational and defined pathway for the diagnosis of chronic rhinosinusitis is an indispensable means to be able to arrive at a correct identification of the patient.

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The role of type 2 inflammation has been progressively associated with many diseases, including severe asthma, atopic dermatitis, nasal polyposis, eosinophilic granulomatosis with polyangiitis, and, recently, eosinophilic esophagitis. Despite this, the association between asthma and esophagitis is still poorly known, and this is probably because of the low prevalence of each disease and the even lower association between them. Nonetheless, observations in clinical trials and, subsequently, in real life, have allowed researchers to observe how drugs acting on type 2 inflammation, initially developed and marketed for severe asthma, could be effective also in treating eosinophilic esophagitis.

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Article Synopsis
  • - The study analyzed the long-term effectiveness of mepolizumab in severe asthma patients, focusing on reducing exacerbations and steroid dependence over three years.
  • - Results showed a significant decrease in exacerbations from 84.6% in the first year to 90% and 95% in the subsequent years, along with a reduction in steroid dependency from 54% to just 6%.
  • - Additionally, patients with nasal polyps experienced a 49% decrease in symptoms measured by the SNOT-22 scale, confirming mepolizumab's long-term benefits in an actual clinical setting.
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Background: The small-airway dysfunction (SAD), detected with impulse oscillometry (IOS) methods, has been recently better characterized in patients with asthma. However, little is known about SAD in asthmatic patients with normal spirometry (NS).

Objective: In this study, we aimed to investigate, in an unselected sample of 321 patients with physician-diagnosed asthma and NS, prevalence, clinical characterization, and impact on asthma control of IOS-defined SAD.

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Article Synopsis
  • - Severe asthma affects roughly 10% of asthma patients and is marked by poor lung function and high eosinophil counts; this study aims to define asthma remission more clearly using a structured method.
  • - A panel of experts developed and refined a questionnaire through a two-round Delphi method to evaluate consensus on criteria for asthma remission, including clinical and inflammatory aspects.
  • - The analysis confirmed specific criteria for both complete and partial clinical remission, creating a practical tool to assess treatment effectiveness in patients with severe asthma enrolled in the Severe Asthma Network Italy registry.
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