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Browse 2,042 clinical trials for asthma. Find studies that match your criteria and connect with research centers.
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NCT06637748
Bronchial asthma is a common respiratory disorder among children, worldwide. Asthma is characterized by chronic inflammation and remodeling of the airways induced by recurrent exposure to hypoxemia that leads to repeated tissue injury and repair. The interaction between respiratory diseases and cardiovascular function is complex . Cardiac dysfunction can be attributed to pulmonary hypertension (PH) secondary to recurrent hypoxia in patients with bronchial asthma. PH affects the pulmonary vasculature by releasing various cytokines leading to pulmonary vasoconstriction and enhancing the remodeling process with muscularization and proliferation of the vascular media and intima . Other hypotheses concluded that the exaggerated respiratory efforts may raise the intrathoracic pressure and increase right ventricle (RV) afterload and consequently RV hypertrophy and/or dilatation . Children with severe bronchial asthma can experience cor pulmonale later in life, but little is known about the early cardiac changes that might be present during childhood especially for mild or moderate persistent asthma. Some studies have reported right ventricular dysfunction as the earliest hemodynamic change among those cases . Other studies did not report these results and reported impaired systolic function of the left ventricle (LV) even before diastolic dysfunction . Insufficient control of BA, in turn, can cause the formation of various pathological conditions. For example, there are studies showing the risk of cardiac arrhythmias and conduction disorders in patients with uncontrolled BA due to functional changes or pathological remodeling of the myocardium . Atrial remodeling, which is the pathomorphological basis of serious supraventricular cardiac arrhythmias, has a more rapid progression with poor BA control and is formed as a result of excessive stretching of the atrial wall, as well as other adverse factors . The connection between BA and supraventricular arrhythmias, including atrial fibrillation (AF), was noted in studies by Cepelis et al. Available data indicate that in the adult population, cardiac arrhythmias are significantly more common in patients with BA than in those without it (9). The results of a Norwegian population study HUNT study, demonstrate that the risks of supraventricular arrhythmias and AF are increased in patients with an uncontrolled BA . Electrocardiography (ECG) is the universal screening method for assessing the state of the atrial myocardium and the conducting system of the heart. According to German et al. ECG analysis can make a significant input to the assessment of the risk of formation of supraventricular rhythm and conduction disorders. Therefore, the analysis of the atrial component of the ECG, and atrioventricular conduction in patients with BA is an important component of the management of these patients, especially in pediatric practice. Consequently, the study of the characteristics of the ECG and its supraventricular component in children with BA is relevan
NCT06636396
The purpose of this study is to assess the use of a practical tool to objectively measure the fruit and vegetable intake in people with asthma.
NCT06624735
Asthma is considered the most common chronic childhood disease and mainly affects children resident in urban areas. Asthma has been designated a serious public health problem due to the increase in its prevalence over the last two decades and the associated high health service costs in admissions and hospitalizations The cause of asthma is not yet completely understood, and there is no consensus about its etiology. A vast body of research emphasizes the role of genetic and environmental factors in the appearance of asthma, and a great deal of interest has recently emerged concerning the relationship between psychosocial factors and asthma morbidity Behavioural problems in children are generally described as "internalizing", which includes "anxiety, depressive, and somatic symptoms" or "externalizing", which includes "oppositional, hyperactive conduct". Both internalizing and externalizing problems can be experienced by healthy children with abnormal and "borderline" personality disorder, the latter referring to a mental illness marked by an ongoing pattern of varying moods, self-image, and behaviour
NCT05787678
Unicentric prospective real life study designed to analyse the efficacy of Dupilumab to reduce bronchial inflammation of asthma measured by inflammatory cell counts obtained in induced sputum and other related characteristics (small airway dysfunction and mucin production) in uncontrolled severe asthma patients in the real life setting without control group
NCT04893057
The study aims to measure the SARS-CoV-2 seroprevalence (ie. the proportion of people with antibodies against the virus) in pregnant women and blood donors in an administrative area of France, and to determine whether these measures are representative of the general population.
NCT02760329
The NOVEL Observational longiTudinal studY (NOVELTY) is an observational study of obstructive lung disease and is a multi-country, multi-centre, prospective, longitudinal cohort study which will recruit patients with a diagnosis, or suspected diagnosis, of asthma and/or Chronic Obstructive Pulmonary Disease (COPD). Patients will undergo clinical assessments and receive standard medical care as determined by their treating physician. Patients enrolled in NOVELTY will be followed up yearly by their treating physician for a total duration of three years. In addition, patients will be followed up remotely every 3 months. The NOVELTY study will collect data currently lacking to allow for multinational data collection to fill regional/local gaps and improve comparability across regions.
NCT04557826
This first-in-man (FIM) phase I study will evaluate the acute safety, tolerability, and acceptability of the investigational RD19 device among 25 healthy volunteers between the age of 18 and 45.
NCT06624254
Modern intensive care units (ICUs) are increasingly adopting newer modes of mechanical ventilation such as adaptive pressure control (APC) modes but there are limited data available regarding risks and benefits of newer modes versus traditional ventilation modes. APC can inadvertently deliver high tidal volumes, which maybe harmful. High tidal volumes may be unrecognized by the provider, due to the complexities of ventilator algorithms and patient interactions. The objective of this aim is to identify risk factors for excess tidal volumes in patients on adaptive pressure control.
NCT06621056
Acute asthma exacerbations are an important public health problem and a major cause of disease progression and healthcare burden for people with asthma. Frequent acute exacerbations are likely to be a distinct asthma phenotype. Further research is needed to identify risk factors for frequent acute exacerbations, but previous studies have mostly been cross-sectional studies at a single time point or prospective studies based on smaller sample sizes. Moreover, most of the studies on frequent acute exacerbations have been conducted in severe or refractory asthma, whereas a certain proportion of non-severe asthmatics may also experience frequent acute exacerbations, the risk factors of which remain to be further evaluated. The main objectives of this project are to compare the baseline clinical, inflammatory, pathophysiological, comorbidities, environmental pollutants and meteorological exposure characteristics of patients with frequent acute exacerbations and those with non-frequent acute exacerbations irrespective of asthma severity, and to develop a disease prediction model for frequent acute exacerbations; and to develop a cohort of patients with frequent acute exacerbations of asthma, observe their prognosis and response to treatment, and search for prognostic factors associated with them. The successful implementation of this study will help in the early identification of patients with frequent acute exacerbations, clarify the factors associated with poor prognosis in this group of patients, and thus provide an individualized plan for the treatment and prevention of this type of patients, which is of great significance in achieving good asthma control, reducing the burden of disease, decreasing the cost of healthcare, and saving clinical healthcare resources and costs.
NCT03909750
Pulmonary Disorders are often categorized as Obstructive or Restrictive disorders. This study will establish two channels of investigation, one group within each type of pulmonary dysfunction. State-of-the-Art Objective analytics will be employed to track patients from baseline and 6 month intervals for up to one year. Chronic Obstructive Pulmonary Disease (COPD) is a lung-related disorder that is characterized by long-term, often progressive state of poor airflow. Primary symptoms include low oxygen tension, shortness of breath, productive cough, and broncho-pulmonary inflammation and interference with oxygen-carbon dioxide exchange. COPD is generally considered those who are able to better inspire air than to expel. Restrictive lung dysfunctions are generally considered those who are unable to achieve full inspiration function. Both can create some of the same symptoms, low Oxygen exchange, activity intolerance of exertion, shortness of breath (SOB), Pulmonary Hypertension, Loss of lung structure, Pneumothorax (in emphysema), may mandate supplemental Oxygen therapy, failure of airway mucus management (chronic bronchitis, bronchiectasis, etc), and other failure of lung function issues. Restrictive lung disorders represent a group of pulmonary function losses which are due to acquired fibrosis, congenital fibrotic disorders, functional airway damage (scarring), vascular abnormalities in arterial/venous supply, Air pollution and tobacco smoking, chemical inhalation damage, etc. are felt to be common contributor of these issues. Diagnostic testing is based on poor airflow measured by lung function studies and whose symptoms do not improve much with anti-asthma bronchodilators, steroids, and a variety of combination of topical medications. Study is an interventional study to document the safety and efficacy of use of cSVF in chronic broncho-pulmonary disease within both groups.
NCT06229886
Prospective observational cohort study within the Pediatric Intensive Care Unit (PICU). We will perform point-of-care-ultrasound (POCUS) to quantify tricuspid regurgitant jet velocity (TRJV) on mechanically ventilated (MV) children. Mechanically ventilated (MV) children approaching extubation as per the discretion of the PICU clinical team will undergo a positive end expiratory pressure (PEEP) titration protocol in a safe and timely manner in the PICU. During this PEEP titration, POCUS will be performed by a pediatric intensivist and interpreted by a pediatric cardiologist. Medical demographics will be collected from the electronic medical record and recorded.
NCT03467854
This study is designed to provide preliminary data to determine if concentrations of piperacillin/tazobactam change in patients with severe respiratory failure receiving extracorporeal membrane oxygenation (ECMO). The investigators hypothesize that patients will have significant changes in concentration measurements, specifically an increased clearance rate and increased volume of distribution, during ECMO as compared to critically ill patients.
NCT05592431
A randomized controlled clinical trial evaluates cerebral blood flow changes associated with HFOV-VG in comparison to HFOV alone in preterm neonates with respiratory insufficiency during the period of invasive respiratory support
NCT05559476
The purpose of this study is to assess the immunogenicity, safety and reactogenicity of the RSVPreF3 OA investigational vaccine when co-administered with the high dose quadrivalent influenza (FLU HD) vaccine in adults aged 65 years and above compared to separate administration of the vaccines.
NCT06443515
The prevalence of transfusion reactions is between 1 and 11% of transfusions. Most reactions are mild and do not pose a life-threatening risk to the patient. More serious problems may be the only manifestations that lead to suspicion of a transfusion reaction. Most noninfectious transfusion reactions are immune-mediated. Two main types of reactions can be distinguished: TACO (transfusion associated cardiac overload, which is a cardiogenic pulmonary edema) and TRALI (transfusion related acute lung injury, non-cardiogenic pulmonary edema). Although TRALI are diagnoses of exclusion, the presence of noncardiogenic pulmonary edema and respiratory problems in the vicinity of blood product transfusions should raise suspicion. Other signs of TRALI are hypotension and tachycardia, while in TACO arterial hypertension with positive water balance can be observed. According to previous reports, the prevalence of transfusion reactions in the neonatal population is approximately 8%. Factors associated with these reactions are low birth weight and low gestational age. However, diagnostic criteria of respiratory transfusion reactions are not uniform across studies, and often the generic terms "acute lung injury" have been used. Therefore, the primary objective of this study is to evaluate the respiratory trend during blood transfusions; secondary objectives are the study of risk factors for the development of respiratory worsening and the possible association with complications.
NCT05354466
Perioperative respiratory adverse events are common in children. We aimed to evaluate the effect of sugammadex on the incidence of perioperative respiratory adverse events in pediatric patients receiving tonsillectomy
NCT06068309
The goal of this clinical trial is to study the impact of a medication adherence app, CareAide, in adult population diagnosed with chronic diseases in Malaysian population. The main question\[s\] it aims to answer are: 1. Can CareAide make people take their medications better and improve their health? 2. Can CareAide improve the health of people with chronic diseases? 3. Does using CareAide make people's lives better? 4. Can CareAide save money when managing chronic diseases? 5. How do people feel about using CareAide? Researchers will ask the participants to use the CareAide app for 6 months and compare the group that used the app with the other group which just received the usual treatment. Researchers will check if they do better with their medications, feel healthier, have a better life, and spend less money. They will check this twice, once after 3 months and again after 6 months. adherence, clinical outcomes, quality of life and economic associated with the app with two follow ups at 3 month intervals.
NCT03788057
A prospective, observational, interventional, single-blind study (blinded for a clinician in the field of inflammatory parameters). The aim of the study is evaluation of the usefulness of induced sputum eosinophilia and other inflammatory indices \[exhaled nitric oxide (NO), exhaled breath temperature, bronchial hyperresponsiveness\] in predicting the failure of treatment reduction with inhaled corticosteroids (ICS) in stable asthma in children and adolescents. In participants with a stable course of the asthma (confirmed in the run -in period), every 3 months the dose of ICS is halved (according to GINA guidelines) until the control is lost or the lowest daily ICS dose is reached (200 mcg, calculated as budesonide equivalent). Throughout the treatment reduction period, the participants run an observation card (clinical symptoms) and peak expiratory flow rate (PEFR) measurements. Clinical evaluation is performed every month, with spirometry, exhaled NO and exhaled breath temperature measurements. Before the reduction and then one month after the change of treatment, the hyperresponsiveness measurement is carried out with the sputum induction (combined method using hypertonic saline), and 2 months after the change of treatment with the exercise challenge test. In the case of loss of asthma control, beta-mimetic will be administered (temporarily) and return to dose of ICS before reduction or further increase of treatment is planned. In severe asthma exacerbations, oral steroids will be considered. The study is observational: treatment is modified according to GINA guidelines based on clinical data as part of routine medical care. Only difference compared do standard care is supplementary inflammation evaluation (exhaled NO, sputum eosinophilia, bronchial hyperreactivity).
NCT05814237
Acute respiratory infections (ARI) are one of the most frequent reasons for hospital admission and antibiotic use, and can be caused by a broad range of pathogens, including respiratory viruses with proven epidemic potential, e.g. influenza and coronaviruses. The POS-ARI-ER study will focus on describing the different routine diagnostic and therapeutic practices in the work-up and treatment of ARI, as well as clinical outcomes across the patient population. In addition, POS-ARI-ER aims to characterise both the adult patient population with ARI presenting to acute hospital settings in Europe, and the aetiology of ARI in these patients.
NCT04139733
Venovenous extracorporeal membrane oxygenation (VV-ECMO) is widely used in the salvage treatment of critical acute respiratory distress syndrome (ARDS). However, reducing lung injury, accelerating lung recovery, shortening VV-ECMO support time, and decreasing complications during the treatment need further study. By changing the body position of ARDS patients, the prone position can increase the lung's dorsal ventilation and improve the lung's ventilation/blood flow ratio to improve oxygenation. Previous multicenter studies have proved that the prone position can significantly reduce the mortality of patients with moderate and severe ARDS. However, patients with severe ARDS rescue by VV-ECMO rarely combine with a prone position.On the one hand, with the support of ECMO, the patient's oxygenation will be significantly improved, and they will no longer need the assistance of a prone position. In addition, the ECMO cannula brings some challenges to implementing a prone position. Only a few cohort studies have reported that VV-ECMO combined with a prone position could improve the oxygenation index and respiratory system compliance during the late treatment period. The initial reason for PP in ARDS patients was to alleviate severe hypoxemia, as it was an efficient means to improve oxygenation in most patients. However, some patients were categorized as non-responders in the PP regarding oxygenation, which caused VV-ECMO therapy to be initiated. Should we decide to perform PP after VV-ECMO therapy no longer? This study evaluates whether early use of PP during VV-ECMO would increase the proportion of patients successfully weaned from VV-ECMO support compared with supine positioning in severe ARDS patients who received PP before ECMO.
