Exhaled Nitric Oxide and Sputum Eosinophils Are Complementary Tools for Diagnosing Occupational Asthma.

Background: Exposure-related changes in exhaled nitric oxide (FeNO) and sputum eosinophils have not been thoroughly compared in the investigation of occupational asthma.

Objective: This study aimed at comparing the accuracies of the changes in FeNO concentrations and sputum eosinophil counts in identifying asthmatic reactions induced by occupational agents during specific inhalation challenges (SICs).

Methods: This retrospective multicenter study included 321 subjects who completed an assessment of FeNO and sputum eosinophils before and 24 h after SICs with various occupational agents, of whom 156 showed a positive result.

Low-dose IL-2 in birch pollen allergy: A phase-2 randomized double-blind placebo-controlled trial.

Background: Regulatory T (Treg) cells are pivotal in immune tolerance to allergens. Low-dose IL-2 (IL-2) activates Treg cells.

Objective: Our aim was to assess IL-2 efficacy for controlling clinical responses to allergen exposures.

Efficacy of bronchial thermoplasty in patients with severe asthma and frequent severe exacerbations: A randomized controlled study.

Background: Bronchial thermoplasty (BT) is a bronchoscopic procedure for patients with severe uncontrolled asthma, but randomized controlled studies of its efficacy in severe asthma with frequent exacerbations are lacking. The current aim was to assess BT efficacy in this patient population.

Methods: Thirty patients with asthma (GINA 5) who had experienced at least four severe exacerbations in the preceding year were randomized to BT (n = 15) or control groups (n = 15).

Proof-of-concept study of anti-Fel d 1 IgY antibodies in cat food using the MASK-air app.

Background: An innovation to better manage cat-allergic patients utilises anti-Fel d 1 IgY antibodies to neutralise Fel d 1 after its production by the cat. However, there is no published study showing its clinical efficacy in humans in a home setting. A longitudinal, open-label, proof-of-concept study was carried out to approach clinical efficacy of the cat food in cat-allergic patients.

Rhinoconjunctivitis severity induced by cat exposure influences early and late asthmatic responses: Evidence from an environmental exposure chamber.

Background: The impact of allergic rhinoconjunctivitis on the early (EAR) and late asthmatic response (LAR) has yet to be assessed during optimal allergen exposure conditions.

Objective: We aimed to assess predictive factors of the EAR and LAR and to evaluate the relation between rhinitis, conjunctivitis and asthma induced by cat allergen exposure in an environmental exposure chamber (EEC).

Methods: Data from two cohort studies involving asthmatic patients with cat allergy who performed a cat allergen exposure challenge in ALYATEC EEC were analysed.

Clinical benefits with 300 IR HDM SLIT tablet in Europeans with house dust mite allergic rhinitis: Post hoc analysis of a large phase 3 trial.

Background: House dust mite (HDM)-induced allergic rhinitis (AR) is a major cause of allergic respiratory disease. The efficacy and safety of the 300 IR HDM sublingual immunotherapy (SLIT) tablet in patients with moderate-to-severe HDM-AR was confirmed in a large, international, phase 3 randomized controlled trials (RCTs). Here, we analyzed the results in the European population.

What's childhood asthma in French Guiana? A cohort study based on children referred for allergology consultations at the Cayenne hospital center.

Background: Asthma is a multifactorial chronic disease, whose most frequent etiology is allergy, especially to . In French Guiana, the childhood prevalence of Blomia T sensitization is unkwown. The aim of this study was to determine the proportion of sensitization to Blomia T and other mites in asthmatic children, and to describe the characteristics of childhood asthma in French Guiana.

Adherence to inhaled corticosteroids and long-acting β2-agonists in asthma: A MASK-air study.

Introduction: Adherence to controller medication is a major problem in asthma management, being difficult to assess and tackle. mHealth apps can be used to assess adherence. We aimed to assess the adherence to inhaled corticosteroids+long-acting β2-agonists (ICS+LABA) in users of the MASK-air® app, comparing the adherence to ICS+formoterol (ICS+F) with that to ICS+other LABA.

Birch-induced allergic rhinitis: Results of exposure during nasal allergen challenge, environmental chamber, and pollen season.

Background: Pollen variation can affect field study data quality. Nasal allergen challenge (NAC) is considered the gold standard for evaluating allergic rhinitis, while environmental exposure chambers (EECs) are mainly used in phase 2 drug development studies. We aimed to study birch-induced allergic rhinitis under 3 different conditions.

[Allergenic and chemical pollutants of indoor environments and asthma: Characterization, assessment and eviction].

The environment of an asthmatic patient can contain numerous sources of pollutants that degrade the quality of indoor air and have major repercussions on the occurrence and control of asthma. Assessment and improvement of the quality of indoor air should be assigned a major role in pneumology and allergology consultations. Characterization of an asthmatic's environment entails a search for biological pollutants with mite allergens, mildew, and allergens resulting from the proximity of pets.

A European-Japanese study on peach allergy: IgE to Pru p 7 associates with severity.

Background: Pru p 3 and Pru p 7 have been implicated as risk factors for severe peach allergy. This study aimed to establish sensitization patterns to five peach components across Europe and in Japan, to explore their relation to pollen and foods and to predict symptom severity.

Methods: In twelve European (EuroPrevall project) and one Japanese outpatient clinic, a standardized clinical evaluation was conducted in 1231 patients who reported symptoms to peach and/or were sensitized to peach.

Development and validation of an electronic daily control score for asthma (e-DASTHMA): a real-world direct patient data study.

Background: Validated questionnaires are used to assess asthma control over the past 1-4 weeks from reporting. However, they do not adequately capture asthma control in patients with fluctuating symptoms. Using the Mobile Airways Sentinel Network for airway diseases (MASK-air) app, we developed and validated an electronic daily asthma control score (e-DASTHMA).

Rhinitis associated with asthma is distinct from rhinitis alone: The ARIA-MeDALL hypothesis.

Asthma, rhinitis, and atopic dermatitis (AD) are interrelated clinical phenotypes that partly overlap in the human interactome. The concept of "one-airway-one-disease," coined over 20 years ago, is a simplistic approach of the links between upper- and lower-airway allergic diseases. With new data, it is time to reassess the concept.

Digitally-enabled, patient-centred care in rhinitis and asthma multimorbidity: The ARIA-MASK-air approach.

MASK-air , a validated mHealth app (Medical Device regulation Class IIa) has enabled large observational implementation studies in over 58,000 people with allergic rhinitis and/or asthma. It can help to address unmet patient needs in rhinitis and asthma care. MASK-air is a Good Practice of DG Santé on digitally-enabled, patient-centred care.

Identification by cluster analysis of patients with asthma and nasal symptoms using the MASK-air® mHealth app.

Background: The self-reporting of asthma frequently leads to patient misidentification in epidemiological studies. Strategies combining the triangulation of data sources may help to improve the identification of people with asthma. We aimed to combine information from the self-reporting of asthma, medication use and symptoms to identify asthma patterns in the users of an mHealth app.

[Pulmonary re-expansion in metastatic pleural effusions after thoracentesis: A pilot study].

Introduction: Metastatic pleural effusion is a cause of dyspnea. The American thoracic society has strongly suggested that studies evaluating thoracic ultrasonography as potentially predictive of improvment of dyspnea are needed.

Methods: We conducted a prospective monocentric observational study to assess chest ultrasound predictors of response to thoracentesis.

Sputum Inflammatory Patterns Are Associated With Distinct Clinical Characteristics in Patients with Occupational Asthma Independently of the Causal Agent.

Background And Objectives: Background: Clinical heterogeneity in sensitizer-induced occupational asthma (OA) and its relationship to airway inflammatory profiles remain poorly elucidated. Objectives: To further characterize interactions between induced sputum inflammatory patterns, asthma-related outcomes, and the high- or low-molecular-weight category of causal agents in a large cohort of patients with OA.

Methods: We conducted a multicenter, retrospective, cross-sectional study of 296 patients with OA confirmed by a positive specific inhalation challenge who completed induced sputum assessment before and 24 hours after challenge exposure.