Active clinical trials for "Asthma"

The aim is to identify the underlying disease mechanisms driving specific asthma phenotypes as well as certain disease outcomes and their relation to impaired indoor air quality. This may also help in underpinning specific target mechanisms in order to personalize and improve current treatment options in childhood asthma and develop more successful prevention strategies. This will be done by combining data from detailed clinical phenotyping with multiple -omics data.

Asthma is characterised by episodic symptoms (attacks) caused by airway inflammation and decreased airflow to the lungs. It affects 10% of the Canadian population and is the most common chronic disease in childhood. Despite its burden and its potential to be life-threatening, establishing the diagnosis takes time due to difficulty in accessing specialised breathing tests. Indeed, the current diagnostic strategy relies on a breathing test (spirometry) and, if non-diagnostic, a subsequent more complicated breathing test conducted in hospitals (a bronchial provocation test). Our dependence on the latter test must be confronted to the bottleneck created by our reliance on it and the difficulty to do these tests in children. Furthermore, within the current framework, people receiving a diagnosis do not know if they have active airway inflammation - a key feature with predicts increased susceptibility to asthma attacks and treatment responsiveness. Our study's goal is to validate clinically accessible and useful diagnostic tests for peoplesuspected to have asthma. Specifically, we are interested in alternative tests that are a) achievable outside the hospital; b) useful markers of airway inflammation/risk c) can identify people at with a higher likelihood of responding to anti-inflammatory therapy. The two tests we are mainly interested in are: Exhaled nitric oxide (measured with a portable handheld machine) The blood eosinophil count (obtained on a general blood test) +/- Other tests which we might be able to develop within this cohort (e.g. urine tests)

This observational study compares the phenotypic variability (clinical and biological) in treatment response to systemic corticosteroids according to the blood eosinophil count and FeNO in physician-diagnosed ≥12-year-old asthmatics presenting with an asthma attack and healthy controls. Multimodal clinical and translational assessments will be performed on 50 physician-diagnosed, ≥12-year-old asthma patients presenting with an asthma attack and 12 healthy controls. These will include a blood eosinophil count, FeNO, and testing for airway infection (conventional sputum cultures and POC nasopharyngeal swabs). People with asthma will be assessed on day 0 and after a 7-day corticosteroid course, with in-home monitoring performed in between.

This study was a multicenter, open, observational study and was divided into two stages; Stage I study includes patients with suspected asthma to observe the diagnostic value and safety of Methacholine Choline Provocation Test. All patients clinically evaluated for bronchial provocation testing were included in the stage II study to further validate the diagnostic value and cutoff value of the methacholine choline provocation test.

The French Society for Respiratory diseases (SPLF), through its Asthma and Allergy working group (G2A), wishes to set up a national cohort of severe asthma patients to describe this population and the use of step 4 and 5 treatment. This study also meets the demand for post - registration studies required by the Health Authorities for biotherapies and bronchial thermoplasty. Other European or international cohorts of asthmatic patients exist and RAMSES could contribute to data sharing initiatives.

The primary purpose of this study is to provide preliminary data to determine if an acute increase in airway inflammation, provoked by an inhaled allergen challenge, is associated with an increase in microglial activation and may inform whether individuals with asthma, in the long-term, are at increased risk for neurodegeneration, cognitive decline, and forms of dementia. Though in the long-term airway inflammation may be associated with neurodegenerative processes, these changes reflect the accumulation over a lifetime of allergen exposures and disease-related changes. This relationship between peripheral inflammation and microglial activation is analogous to the impact of sleep loss. No single night of poor sleep will lead to long-term change in brain structure, function, or cognitive function, but the accumulation of frequent and repeated sleep loss over a lifetime has been shown to have a major impact. These data will be used for a larger scale study to determine if asthma is a risk factor for neurodegeneration, and will inform brain health issues in asthma more broadly.

This project aims to develop a PROM for preschool children with recurrent wheeze. Nearly one third of children will have at least one episode of wheeze in the first five years of life. The majority of these children grow out of the condition in early school years. However, their families go through challenging times often with numerous emergency department admissions and hospitalizations. Hospital admission rates for preschool children with wheeze attacks remain high and are increasing in the UK. New treatments have become available, but although current treatments speed recovery from a wheeze attack, still many children visit hospitals for rescue medications and medical reviews. Recent Australian data show that one fourth of these children remain at emergency departments for a less than four hours period, suggesting that with better information and education, these children could have remained at home. Justification-Significance of the work By understanding what really matters for these families, clinicians and stakeholders will be better able to design interventions that will reduce the hospital attendances and admissions by empowering parents to manage their children's condition. More specifically, this tool will assist GPs identify which of these children need to be reviewed by specialists, aid holistic management, ensure interventions are meaningful for families and assess the benefits of novel treatments. Methodology The items of the questionnaire have been generated through discussions with families in a qualitative research study conducted by the research team. These items will be refined and the questionnaire will be tested with families in different healthcare settings. Researchers will assess how well this questionnaire is identifying the children who present with greater number of hospital admissions and will be benefited from suggested interventions. The data will be analysed and based on the results, amendments will be made to the questionnaire, which can will then be introduced in the routine management of these children.

Study is conducted to assess the prevalence and structure of comorbidity among patients undergoing abdominal surgery and produce the stratification of the risk of postoperative complications by identifying independent predictors for its development.

The goal of this research study is to test how good an app is in making asthma easier to manage for 372 adolescents/young adults. The app is a mobile version of the asthma action plan.

Increasing evidence supports that the respiratory microbiota, including viral and bacterial microorganisms, play important roles in respiratory health and disease. Microbial patterns in airways may induce distinctive endotypes of asthma. Previous studies suggest host-microbiota interactions in children may account for the heterogeneity of endotypes and clinical presentations. However, information on such relationship is limited in adults. Furthermore, how the upper airway microbiome is related to asthma endotype and phenotype is not well understood. Knowledge of microbiota in the airway allows exploration of therapeutic manipulation of the microbiome and targeting the development of asthma prevention strategies and the optimization of asthma treatment.