View clinical trials related to Respiratory Tract Infections.
Filter by:A phase 2, Randomized, Observer-blind, Multicenter, Dose-Ranging Study to Evaluate the Immunogenicity, Safety, and Tolerability of the plant-made H5 VLP Influenza vaccine adjuvanted with Alhydrogel or Glucopyranosyl-lipid adjuvant in squalene emulsion (GLA-SE), in healthy adults 18-60 years of age.
Premature infants (born before 34 wk) are routinely vaccinated against RSV but vaccination rate against influenza are low in spite of national programs. Study goal is to evaluate the effectiveness of short intervention during RSV prophylaxis visit, planned to educate parents about the importance of influenza vaccination.
Poor Ecuadorian older people suffer from chronic dietary deficiencies of zinc, iron, copper, vitamins C, B6, B12, D, and folic acid. The investigators have previously shown that these deficiencies are associated with impaired immune function and increased incidence of respiratory infections (RI). The hypothesis is that correction of these specific nutrient deficiencies will improve immune response and thereby enhance resistance to respiratory infections. To test this hypothesis this study will evaluate the effect of supplementation with specific vitamins and minerals found to be deficient in poor elderly Ecuadorians on markers of immune function and the incidence of RI. A randomized, double-blind, placebo-controlled trial in 320 older people (≥65 y)will be carried out in Quito, Ecuador. Participants will receive multivitamin and mineral supplements or placebo tablets daily for 12 months. Nutrients will be provided at US Recommended Daily Allowance (RDA) levels, except for vitamin C and zinc doses, which will be 5 times and 1.25 times higher than the RDA, respectively. Incidence of respiratory infections (the primary outcome) will be assessed weekly by field nurses and physicians from the study team. Secondary outcomes include delayed-type hypersensitivity (DTH) skin test, cathelicidin production by mucosa respiratory cells, and serum C-reactive protein (CRP) as measures of immune function. Blood micronutrient levels and haemoglobin status will be collected as measures of adherence to the trial regimen. Incidence rate of RI and rate ratio (RR) will be calculated to quantify the effect of the intervention on the incidence of respiratory infection. This will be the first trial of its kind conducted specifically in a population of older people known to have poor micronutrient status. The findings of the study may be important for similar populations in other low- and middle-income countries.
The purpose of this study is to determine if there is comparable efficacy between carbocisteine and a protective cough syrup from natural ingredients in children's cough due to upper respiratory tract infections (URTI) such as the common cold. The hypothesis is that protecting the throat is very useful in decreasing cough severity, both day and night, without needing to subdue such an important reflex as cough, and without only acting on mucous fluidification, especially in children where sedation and excessive fluidification is dangerous. The research hypothesis is that the protective (Grintuss) Syrup relieves cough (frequency, intensity, degree of disturbance due to nocturnal cough, and improves the quality of sleep of the child) as much as or more than the carbocysteine syrup usually used to treat children (Syr Mucolit).
For most individuals, the lung has a remarkable ability to deal with exposure to a variety of inhaled bacteria. Some individuals, however, do have recurrent bacterial infections, usually in the form of acute or chronic bronchitis and, in some instances, pneumonia. The reasons for this variability in bacterial infections between otherwise healthy subjects, between types of lung disease, and within the same type of lung disease are poorly understood. Variability in susceptibility to bacterial infections is partially explained by differences in exposure to infectious agents, genetic susceptibility and innate (or early) immune responses. It is of interest that the incidence and severity of bacterial infections is greatest during the winter months. Other than viral infections, there are few variables that change with season. Vitamin D is one known immune modulator with a seasonal periodicity. The hypothesis of this study is that levels of vitamin D are an important determinant of the innate defense of the lung against inhaled bacteria. The investigators further postulate that vitamin D has effects on the innate immune function of both alveolar macrophages and lung epithelial cells.
IQP-AS-105, is a food supplement derived from garlic (Allium sativum). The objective of this study is to evaluate the possibilities of clinical use of IQP-AS-105 as a preventive medicine, based on its ability to enhance the immune system responses
Patients who have undergone lung transplantation are at an increased risk of developing chest infections due to long-term medication suppressing the immune response. In other chronic lung diseases such as cystic fibrosis (CF) and bronchiectasis, inhaled, nebulised mucolytic medication such as dornase alfa and isotonic saline are often used as part of the management of lung disease characterized by increased or retained secretions. These agents act by making it easier to clear airway secretions, and are currently being used on a case-by-case basis post lung transplantation. To the investigators knowledge, these agents have not been evaluated via robust scientific investigation when used post lung transplant, yet are widely used in routine practice. Patients post lung transplant must be investigated separately as they exhibit differences in physiology that make the clearance of sputum potentially more difficult when compared to other lung diseases. Lower respiratory tract infections are a leading cause of hospital re-admission post lung transplant. Therefore, this highlights the need for a randomized controlled trial. The aim of this study is to assess the efficacy of dornase alfa, compared to isotonic saline, in the management of lower respiratory tract infections post lung transplant. Investigators hypothesize that dornase alfa will be more effective than isotonic saline. The effect of a daily dose of dornase alfa and isotonic saline will be compared over a treatment period of 1 month. Patients admitted to hospital suffering from chest infections characterized by sputum production post lung transplant will be eligible for study inclusion. Patients will be followed up through to 3 months in total to analyze short-medium term lasting effect. Investigators wish to monitor physiological change within the lung non-invasively via lung function analysis whilst assessing patient perceived benefit via cough specific quality of life questionnaires. These measures will be taken at study inclusion and repeated after 1 month and 3 months. Day to day monitoring will be performed via patient symptom diaries, incorporating hospital length of stay and exacerbation rate. The outcomes of this study have the potential to guide clinical decision-making and highlight safe and efficacious therapies.
The purpose of this study is to assess the efficacy and safety of J022X ST for prevention of Recurrent Upper-Respiratory Tract Infections (RURTI) compared to placebo in children of younger age who develop infectious diseases more frequently than other children of this age in general.
To evaluate the clinical and economical benefits of a meropenem dosage strategy based on a population pharmacokinetic(PPK)-pharmacodynamic(PD) model in lower respiratory tract infection patients.
IC-GLOSSARI (The Intensive Care GLObal Study on Severe Acute Respiratory Infection) is a multicentre, prospective, observational,14-day inception cohort study designed and conducted by the ESICM Trials Group to investigate the epidemiology and microbiology profiles of ICU-SARI, document commonly used treatment and monitoring strategies, measure current outcomes and identify potential topics for multidisciplinary studies ranging from interventional clinical trials to fundamental mechanisms of disease. The purpose of this study is to answer the following questions: What is the frequency and disease burden of SARI for ICU's worldwide? What are the aetiologies of ICU SARI? How are SARI patients diagnosed and managed in the ICU? What is the outcome from SARI in the ICU? Is there a difference in outcomes from SARI depending on the aetiology of the disease? Can we identify high-risk categories of SARI that could constitute a defined population for an interventional study?