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Browse 3,705 clinical trials for asthma. Find studies that match your criteria and connect with research centers.
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NCT06098950
Artificial intelligence (AI) shows promising in identifying abnormalities in clinical images. However, systematically biased AI models, where a model makes inaccurate predictions for entire subpopulations, can lead to errors and potential harms. When shown incorrect predictions from an AI model, clinician diagnostic accuracy can be harmed. This study aims to study the effectiveness of providing clinicians with image-based AI model explanations when provided AI model predictions to help clinicians better understand the logic of an AI model's prediction. It will evaluate whether providing clinicians with AI model explanations can improve diagnostic accuracy and help clinicians catch when models are making incorrect decisions. As a test case, the study will focus on the diagnosis of acute respiratory failure because determining the underlying causes of acute respiratory failure is critically important for guiding treatment decisions but can be clinically challenging. To determine if providing AI explanations can improve clinician diagnostic accuracy and alleviate the potential impact of showing clinicians a systematically biased AI model, a randomized clinical vignette survey study will be conducted. During the survey, study participants will be shown clinical vignettes of patients hospitalized with acute respiratory failure, including the patient's presenting symptoms, physical exam, laboratory results, and chest X-ray. Study participants will then be asked to assess the likelihood that heart failure, pneumonia and/or Chronic Obstructive Pulmonary Disease (COPD) is the underlying diagnosis. During specific vignettes in the survey, participants will also be shown standard or systematically biased AI models that provide an estimate the likelihood that heart failure, pneumonia and/or COPD is the underlying diagnosis. Clinicians will be randomized see AI predictions alone or AI predictions with explanations when shown AI models. This survey design will allow for testing the hypothesis that systematically biased models would harm clinician diagnostic accuracy, but commonly used image-based explanations would help clinicians partially recover their performance.
NCT04108377
This study evaluates the effects of roflumilast on restoring response β2 adrenoreceptor agonists in low T2, obese asthmatics. One group of participants will receive roflumilast for 3 months, while the other will receive a placebo.
NCT03916237
Recognizing a decline in pediatric primary care visits and immunizations rates, an increase in utilization of the emergency room and stagnating academic achievement, leaders of MetroHealth Medical Center and the Cleveland Metropolitan School District understood that an innovative delivery option would be required to meet the needs of their pediatric urban population. In the fall of 2013, with support from local and regional funders, they collaborated to open the first School Based Health Center in Cleveland. During its first year, the MetroHealth School Health Program provided primary care services to children in 98 clinical care visits. Through an emphasis on population health and care coordination, the School Health Program has grew dramatically, completing over 2,400 visits in the 2017-2018 school year at clinical sites in over 13 schools. The School Health Program has been successful in developing a care management model to improve the percentage of students who complete recommended preventive services including immunization and preventive visits. The investigators intend to apply and expand upon lessons learned to develop an effective multi component asthma care management model that includes (1) registry utilization (2) evidence based clinical care protocols (3) implementation of an Environmental Screening Tool (4) effective utilization of a Medical Legal Partnership (5) effective partnership with an environmental health justice community organization, Environmental Health Watch, for home assessment and remediation (6) utilization of a unique data sharing partnership between a large health system and school district to document health and educational outcomes.
NCT03654976
The trial aims to demonstrate efficacy of the House Dust Mite SLIT-tablet versus placebo as add-on treatment in children and adolescents (5-17 years) with House Dust Mite allergic asthma based on clinically relevant asthma worsening.
NCT05007327
Seasonal allergic rhinitis has multiple consequences: sleep disturbances, fatigue, depressed mood, impaired quality of life and productivity, and co-morbid conditions such as asthma, which affects one third of AR patients. In Europe, more than 150 million people suffer from allergic rhinitis and more than 25 million suffer from asthma. About 30% have uncontrolled rhinitis during exposure to allergens. The impact of allergic diseases on work productivity is estimated to be between 30 and 50 billion € per year in the EU. Studies show that pollution can play a role in the amplification of the response to inhaled pollen allergens by inducing morphological and functional modifications of nasal and bronchial epithelia, but also by inducing structural modifications of allergenic molecules. However, although data show that the symptoms of AR are aggravated by exposure to air pollution, this effect is not observed for all pollens. The study area is very exposed to pollens (with a significant presence of cypress pollen) and air pollution, and presents a prevalence of asthma of 17% while the national average is about 7%. The aim of this study is to establish, if they exist, links between pollens of various species, air pollution and symptoms of allergic rhinitis. The knowledge of these links will allow public authorities to set up prevention actions, and patients to better manage their allergic rhinitis on a daily basis.
NCT06063044
Allergic diseases in children are major public health concerns due to their widespread and rising prevalence. The most classic pathway to trigger allergy is type I allergy mediated by immunoglobulin E(IgE), but the role of immunoglobulin G4(IgG4) in allergic diseases is still worth exploring.we have collected the data of allergic patients aged 0-14 years for retrospective cross-sectional analysis to evaluate the positive rates of total IgE, HDM IgE, FS-IgE and FS-IgG4. Meanwhile, investigators screened out patients who were treated with FS-IgG4-guided elimination diets with/without probiotics for more than 3 months to clarify the role of FS-IgG4 in childhood allergic diseases by assessing the improvement of clinical symptoms before and after treatment.
NCT04913142
The objective of the present study is to describe the negative impact on oral and gut microbiota of a severe acute respiratory syndrome SARS-CoV-2 infection in patients hospitalized in intensive care units (ICU). The study would like to compare their microbiota to the microbiota of ICU patients, non-infected by the SARS-CoV-2.
NCT05800379
Bronchial asthma is the most common chronic respiratory disease in children. At present, more attention has been paid to the treatment of airway inflammation and smooth muscle spasm, while the related research on the risk factors of asthma attack, mucus plug formation and its effect on asthma has been ignored. This study was a retrospective study. Children hospitalized for acute exacerbation of asthma from 2016 to 2021 were selected as the research objects. The clinical manifestations, bronchoscopy results and lung CT results of children hospitalized for acute exacerbation of asthma were summarized. To analyze the risk factors of acute exacerbation, clinical characteristics, risk factors of mucus plug formation in hospitalized children with asthma, and the safety and efficacy of flexible bronchoscopy in the diagnosis and treatment of hospitalized children with asthma. The discharged children were investigated by written or online questionnaires to understand the acute attack of asthma, control level, compliance, appliability of the China Children's Asthma Action Plan, family management and medical utilization of children with asthma after discharge.
NCT06084507
A single-center, randomized, open, single-dose, two-cycle, two-sequence, cross-over study was conducted to evaluate the effect of food on the pharmacokinetic characteristics of GST-HG171 in combination with Ritonavir.
NCT04360213
The primary objective of this study is to assess the function and reliability of a non-invasive, skin-like electronic sensor. We hypothesize that this skin sensor will address an unmet need to wirelessly, noninvasively, and rapidly assess critical vital signs and other measures essential to healthcare monitoring for patients with asthma and anaphylaxis.
NCT03793842
Doctors follow a standard ventilator management strategy when making adjustments to the breathing machine to optimize the amount of oxygen into the lungs. The purpose of this study is to assess whether the EIT (electrical impedance tomography) device can be an additional useful tool for ventilator management and identifying the ideal positive end-expiratory pressure (PEEP).
NCT05047835
Prolonged prone position ventilation reduces the 30-day mortality in acute respiratory distress syndrome (ARDS) and in COVID-19 infection. A large number of patients with COVID-19 suffered from new-onset cardiac disease, therefore, ECG is crucial. However, there is limited data on the effects of prone position on the ECG in COVID-19 patients.
NCT05134402
The need for multiple night testing is well recognized in sleep medicine because of a considerable and relevant night-to-night variability. In a study with multiple recordings using WatchPAT®, the OSA severity of 24% of patients was misclassified when using one night compared to the average of three nights. On average, pAHI varied by 57% from night-to-night. The variability of pAHI could partially be explained by the variability of time spent in the supine position with more time supine leading to a higher pAHI (Tschopp et al 2021). Smith (2007) suggested that the AHI should be indicated with a confidence interval to indicate the uncertainty regarding its true value. The Minimal Detectable Difference (MDD) is of special interest in sleep medicine, especially when assessing treatment effects. MDD was found to be 12.8/h and the standard error of measurement was 4.6/h for 4 nights of polysomnography (Aarab et al. 2008). For WatchPAT®, measuring two and three nights showed a small reduction in MDD from 19.1/h to 18.0/h (Tschopp et al. 2021, in press). Only one study using pulse oximetry assessed the night-to-night variability over 14 days (Stöberl A. et al 2017). The study confirmed the enormous variability and focused mainly on its impact on OSA severity. While the night-to-night variability has been extensively studied for polysomnography, respiratory polygraphy, and WatchPAT®, little is known about the optimal number of nights to be recorded. There is convincing evidence from the literature, that the recording of multiple nights is the only way to assess the severity of the patient's disease with clinically reasonable accuracy. Moreover, the MDD with only one night's recording is astonishingly high. The question is how many nights should be recorded to achieve acceptable diagnostic accuracy. The precision of the OSA measurement depends on the clinical situation. For example, to diagnose severe OSA, a higher variability might be acceptable without influencing the treatment decision. However, when comparing treatment effects, the MDD should be as small as possible. The recording of multiple nights might be cumbersome for patients (e.g. with polysomnography or respiratory polygraphy) as well as costly. These factors have to be taken into consideration for the clinically feasible number of recordings. Sleepiz One Connect offers the unique opportunity for a contactless recording of breathing combined with conventional pulse oximetry and is a minimally invasive diagnostic tool that allows measurements over several nights. Studies with multiple night recordings will offer a basis for diagnostic recommendations in future guidelines. The study aims to investigate the variability of obstructive sleep apnea at-home sleep apnea testing. By investigating the variability, we want to quantify the improvement in diagnostic accuracy by additional measurements. The hypothesis is that additional recordings offer a significant improvement in diagnostic accuracy by reducing the variability. The reduction in variability will diminish with each additional recording.
NCT05085574
This study is designed to test the efficacy and safety of combinations of two well-understood agents - famotidine and celecoxib in patients hospitalized with moderate-to-severe COVID-19 (based on World Health Organization \[WHO\] Ordinal Scale for Clinical Improvement). Both famotidine and celecoxib separately demonstrate clinical activity in mitigating COVID-19 disease symptoms or severity, and appear to have separate and complementary mechanisms of action.
NCT04680611
This is a real-life pragmatic non-randomised study to explore the impact of mepolizumab on the emotional and affective outcomes of patients with severe eosinophilic asthma and their partners. It will be conducted in two quantitative stages (Phases 1 and 2) with an additional third qualitative component (Phase 3).
NCT06070831
Background: Respiratory health problems are one of the main causes of morbidity and mortality in adult people with acquired brain injury (ABI). The influence of respiratory muscle training has not yet been studied in this population group. The objective of the study was to evaluate and compare the efficacy of two protocols with respiratory muscle training, inspiratory muscle training vs expiratory muscle training, to improve respiratory strength and pulmonary function in adults with CP. Methods: The study is a controlled, randomised, double-blind trial and with allocation concealment. 26 ABI patients will be recruited and randomly distributed in the inspiratory muscle training group (IMT) and the expiratory muscle training group (EMT). Over an 8-week period an IMT or EMT protocol was followed 5 days/week, 5 series of 1-minute with 1-minute rest between them. IMT trained with a load of 50% of the maximum inspiratory pressure (MIP) and EMT with 50% of the maximum expiratory pressure (MEP). Respiratory strength and pulmonary function were evaluated.
NCT05734417
This project aims to study the benefits of probiotics namely Bifidobacterium lactis subsp. infantis B8762 in treatment of respiratory and gastrointestinal illnesses in children, which are found common among pre-school children in Malaysia aged below 7-years old.
NCT05621993
This is a multicenter, ambispective observational cohort study. The patients with corona virus disease 2019 (COVID-19) will be included in the study. The patients will be divided into 4 groups according to the treatment mode (Azvudine treatment group within 48 hours after the first positive for nucleic acid, Azvudine treatment group after 48 hours after the first positive for nucleic acid, short course of Azvudine treatment without nucleic acid turning negative, and the control group) . This study aims to analyze the efficacy and safety of Azvudine in the treatment of patients with COVID-19.
NCT05012033
This is a pilot study to investigate serum prednisolone profiles in: * Patients on high doses of prednisolone for any inflammatory disorder, both in the acute and chronic setting. * Patients stepping up from or down to prednisolone therapy in association with a course of high dose methyl-prednisolone or dexamethasone. The study will comprise 3 groups, including those started on high doses of prednisolone acutely in an inpatient or outpatient setting, participants on chronically high doses, and those receiving a several week course of high dose methylprednisolone or dexamethasone. The study aims to measure prednisolone levels at a number of time points to investigate serum profile differences in those receiving prednisolone acutely compared with longer term steroid use. Further samples will be taken to characterise additional metabolic changes.
NCT04515147
This study aims to evaluate the safety and reactogenicity profile after 1 and 2 dose administrations of investigational SARS-CoV-2 mRNA vaccine (CVnCoV) at different dose levels and to evaluate the humoral immune response after 1 and 2 dose administrations of CVnCoV.
