View clinical trials related to Respiratory Tract Infections.
Filter by:The main purpose of this study is to learn about the effectiveness of Pfizer's ABRYSVO vaccine. This vaccine helps to prevent infections caused by Respiratory Syncytial Virus (RSV). RSV is a virus that can cause infections in the airways. These symptoms can be cold-like symptoms, but in some cases can lead to severe symptoms or hospitalization. This study uses only healthcare data that are already collected from routine visits to healthcare providers. This means that participants will not be actively enrolled in the study and there are no study treatments. The study will look at data for about two years. This study will look at patient information from: - Adults ages 60 years and older - Are eligible to receive the ABRYSVO vaccination
The purpose of this study is to evaluate overall changes in patient management and longer-term resource utilization between control and test arms, including (but not limited to) additional work-up (including other diagnostic tests and consults), antimicrobial treatments, disposition decisions and hospital length of stay (LOS)
The application of HFNC therapy in patients with airway stent, improving both humidification and clearance of the airway secretion, could potentially reduce the risk of mucoid impaction, respiratory infections and granulation. HFNC therapy could be superior to nebulization of normal saline (usual care) in order to keep the stent cleaned, reducing, by inference, the risk of complications, as defined above.
The purpose of this research study is to find out how well two different 2023-2024 updated COVID-19 vaccines protect people from COVID-19 (the disease caused by the SARS-CoV-2 virus), and to determine if getting a 2023-2024 updated vaccine provides better protection from COVID-19 than not getting a vaccine. If the participant chooses to get a 2023-2024 updated COVID-19 vaccine as part of this study, they will have a 50/50 chance of receiving either the Novavax or Pfizer mRNA vaccine. If the participant decides not to get a 2023-2024 updated COVID-19 vaccine, the participant can still participate in other study activities. STUDY ACTIVITIES: - An online enrollment survey - An in-person enrollment visit - Weekly online surveys for 20 weeks - Weekly COVID-19 tests for 20 weeks - Additional online surveys if you have COVID-19 symptoms or tested positive for COVID-19. - Additional COVID-19 tests if you have COVID-19 symptoms or tested positive. - Online survey questions in the middle and at the end of the study
This trial is taking place in Los Angeles, CA at 21 clinics within the UCLA Health System. The study design is a 3 arm randomized trial. Patients will be randomized into 1) receiving portal based reminder messages with a video from their PCP encouraging them to receive the influenza vaccine, 2) portal-based reminder messages with an infographic with the image of their PCP encouraging them to receive the influenza vaccine, or 3) the control group. Patients randomized to the intervention arms will receive reminders if they are due for influenza vaccine. Despite the Advisory Committee on Immunization Practices (ACIP) recommendation in 2010 that all people above 6 months of age should receive an annual flu vaccine, vaccination rates remain low: at 6m-4.9 yrs. (70%), 5-17.9 yrs. (56%), 18-64.9 yrs. (38%), and >65 yrs. (63%). The investigators will assess the effectiveness of MyChart R/R video messages and infographic messages as compared to the standard of care control (Health system messages).
The cornerstone of COPD therapy is based on the use of inhalation drugs. The correct use of devices is crucial; a suboptimal use technique is the cause of a possible clinical deterioration with a consequent increase in exacerbations and healthcare expenditure. Inhalation of drugs by nebulizer, in specific populations of patients who have shown poor adherence to inhalation therapy and poor symptomatological control, could be a more advantageous therapeutic strategy than pMDIs or DPIs, not requiring coordination at the time of delivery and not requiring an effective inspiratory effort. The objective of this study is to evaluate the effects of the transition from portable inhalers (pMDIs or DPIs) to an innovative prototype Omron C28P nebulizer, measured primarily as changes in treatment adhesion and respiratory symptoms. The sudy design is open, single-arm, real-life, prospective study conducted in two tertiary level respiratory centers in Italy, with assessments conducted on the occasion of patients' visits to their doctor.
Point estimates of sensitivity and specificity of molecular POC platforms for SARS-CoV-2, with 95% confidence intervals, using RT-PCR as reference standard.
The goal of this randomized non-pharmacological Intervention study is to evaluate the effects of probiotic supplements (Bifidobacterium breve M-16V, Bifidobacterium lactis HN019, Lactobacillus rhamnosus HN001) on children affected by upper respiratory tract infections. The main questions it aims to answer are: - probiotic formulation can reduce intensity and duration of fever in children affected by upper respiratory tract infections - probiotic formulation can influence the gut microbiota composition in children affected by upper respiratory tract infections Participants will be asked to take probiotic supplements or placebo for 14 days and to collect three fecal samples: before probiotic supplementation (T0), 14 days after probiotic supplementation (T1), and 12 months after the enrollment (T2).
Rationale: Respiratory tract infections (RTI) are a major cause of morbidity in young children in high- income countries and the major cause of mortality in developing countries. Causative bacteria and viruses are regular residents of the nasopharynx of asymptomatic individuals (colonization) and live there together with other presumed harmless commensals, without causing disease. These non-pathological infections/colonization episodes are important for transmission, intermediate step to disease and boost immune responses. The investigators recently validated the use of minimally-invasive nasal sampling methods that can be done at home for the study of host and microbial parameters in adults and children. In this study the investigators will focus on the daily microbial and immunological composition of the nasopharynx during health in relation to symptoms. Primary objective: Associate acquisition of pneumococcal colonisation with levels of pre-existing polysaccharide specific memory B cells. Secondary objectives include: Validate the use of synthetic absorptive matrices (SAM) for detection of respiratory pathogens versus nasopharyngeal swabs (NPS) and saliva; Assess dynamics of URT infection/colonisation and examine its relationship with symptoms, host responses and microbiota; Measure transmission between children and parents and immune responses in parents. Study design: Prospective community-based cohort study.total of 45 children, aged 1-5 years old attending daycare or (pre-)school, will be included, including a pilot of 10 children to assess tolerability. If there are insufficient pneumococcal acquisitions in the study to assess the primary outcome, additional children can be recruited in groups of 3 or 4 children (up to 10). For a subset of participating children, both parents will be asked to self-collect daily saliva during the study. Primary study parameters: Frequency of systemic polysaccharide specific B cells in children that become colonised during the study versus children that do not become colonised Secondary study parameters: Dynamics of respiratory bacteria and viruses during URT infection/colonisation. Presence and load for bacteria and viruses in children in SAM versus saliva and NPS. Local microbiota and immune profiles and association with infection/colonisation and symptomology. For a subset of parents, daily presence and load of bacteria and viruses as well as host immune factors measured in saliva.
Rationale: Individuals with advanced age are at a progressively increasing risk of acquiring lower respiratory tract infections. Besides calendar age, the degree of frailty also associates with increased susceptibility to pneumonia requiring hospitalization. How alterations in the mucosal immune system with advanced age predispose to infections remains unclear as access to relevant tissue samples is limited. With minimally-invasive nasal sampling methods, it was recently observed that in vital older adults, both CD4+ T cells and CD8+ T cells are selectively lost from the nasal mucosa. However, the exact phenotype, underlying mechanisms, key molecules and consequences of this have not yet been investigated. Objective: Elucidate the mechanisms underlying the loss of nasal T cells and characterize in depth the differences of T cells in young and older adults and associate this loss with susceptibility to infections. Study design: Prospective cohort study Study population: Participants will be recruited from 3 groups: - healthy young adults (18-30 years, n=50) - vital older adults (>65 years, n=60) - frail elderly (>65 years, n=60). This group includes individuals without a history of recurrent respiratory infections or with >2 self-reported episodes of respiratory infection in the past year. Main study parameters/endpoints: Frequency of nasal CD8+ T cells in young adults and frail older adults. Secondary study parameters/endpoints: - Phenotype (subsets, activation status), functionality, transcriptomic state, clonality and frequency of nasal and blood T cell populations - Stability of T cells and other immune parameters, as described for main study parameter, during a second sample after 3 months. - Analysis of other immune populations as for main study parameter - Concentration of nasal and systemic factors (e.g. cytokines and metabolites) and their association with T cells and other immune populations - Respiratory tract microbiota profiles and presence of asymptomatic viral infections and their association with T cells and other immune parameters - Chronological and biological age, sex, and other immunologically relevant parameters with T cell populations and other immune parameters - Alteration of T cell phenotype, during and following respiratory tract infections. Levels of antigen-specific T cells and other immune parameters in nose and blood post infection.