Active clinical trials for "Respiratory Tract Diseases"

To test the efficacy of dupilumab in patients with AERD regarding the intolerance to salicylic acid after 6 months. This will be evaluated by oral drug provocation testing with low dose salicylic acid after 6 months of dupilumab treatment. Hypothesis: After 6 months of therapy, patients will tolerate aspirin dose levels as tested with different dosages (125mg, 250mg and 500 mg).

Pulmonary rehabilitation, which includes respiratory muscle training, is effective in improving the functional status of patients with various types of the respiratory system diseases, including bronchial asthma, interstitial lung diseases or lung transplant patients. However, availability of pulmonary rehabilitation is limited in the Czech Republic. Nowadays even more due to the Covid-19 pandemic. A suitable instrument of increasing its accessibility is telerehabilitation using modern technologies. The main goal of this project is to evaluate the patients' functional status after completing a standardized cycle of pulmonary rehabilitation focused on respiratory muscle training conducted as telerehabilitation sessions and compare the effect of this intervention with a different group of patients who will undergo an education session led by a trained physiotherapist followed by self-directed exercise according to an exercise brochure.

Aspirin-exacerbated respiratory disease (AERD) is characterized by the presence of asthma, chronic rhinosinusitis with nasal polyposis (CRwNP), and acute respiratory reactions induced by aspirin and other cyclooxygenase-1 inhibitors. One of the well-established therapeutic options is aspirin desensitization followed by daily aspirin therapy. The potential mechanisms underlying the clinical benefit of this approach include the downregulation of CysLT1 receptor, inhibition of PGD2 and interleukin IL-4 via the signal transducer and activator of transcription 6, global (blood, urine) activation of type 2 (T2) inflammation as well as local (sputum) reduction of T2 asthma inflammation. Indeed, among current aspirin-treated patients with AERD (n=37), no one had severe acute respiratory syndrome coronavirus clade 2 (SARS CoV-2) infection and most importantly, none of them developed COVID19 during pandemic. WHY? Notably, patients with AERD did not have asthma and nasal polyps exacerbation on aspirin, which is in line with other studies. Respiratory infections, such as the current COVID-19 pandemic, target epithelial cells in the respiratory tract. SARS-CoV-2 spike (S) protein binds angiotensin-converting enzyme 2 (ACE2), and in concert with host proteases, principally transmembrane serine protease 2 (TMPRSS2), promotes cellular entry. Nasal and bronchial epithelium play a key role in the early phases of an immune response to respiratory viruses. Induced sputum (IS) and nasal lavage (NL) cells are likely the first immune cells to encounter SARS CoV-2 during an infection, and their reaction to the virus will have a profound impact on the outcome of the infection. Interferons (IFNs) are antiviral cytokines and among the first mediators produced upon viral infection. IFNs are divided into three groups based on their receptor usage; type I IFNs (IFN-α and IFN-β), type II IFN (IFN-γ), and type III IFNs (IFN-λ1 and 2). Both production of IFN and cellular response to IFN are critical steps for the restriction of viral dissemination. An interferon-stimulated gene (ISG) is a gene whose expression is stimulated by interferon. Specifically, type I and type III interferons are antiviral cytokines, triggering ISGs that combat viral infections. The type II interferon class only has one cytokine (IFN-γ), which has some antiviral activity. To conclude, the assessment of gene expression for interferon α1 (IFNA1), interferon β1 (IFNB1), interferon γ (IFNG), interferon λ1 and λ2 (IFNL1 and IFNL2) as well as for ACE2 and TMPRSS2 in sputum and nasal cells may shed new light on the course of this infection in patient with AERD during long term aspirin therapy.

Some military personnel who have been exposed to burn pit emissions, desert dust, and other airborne hazards experience new respiratory symptoms after deployment. The goal of this clinical trial is to learn about exercise in veterans with new respiratory symptoms after deployment to Southwest Asia. The main questions it aims to answer are: Do veterans with new respiratory symptoms after deployment have heart or lung abnormalities that contribute to difficulty exercising? Does high-intensity interval training (HIIT) improve fitness and symptoms? Study participants will complete the following: Study Visit 1: Exercise test (VO2max test), echocardiogram (heart ultrasound), blood tests, questionnaires Exercise program: 12 weeks of 3x/week supervised HIIT on upright stationary bicycle (~40 minutes each) and 3x/week home aerobic exercise (45 minutes each) Study Visit 2: Exercise test (VO2max test), echocardiogram (heart ultrasound), blood tests, questionnaires

A randomized controlled trial comparing Noninvasive high frequency oscillatory ventilation (NHFOV) and Noninvasive positive pressure ventilation (NIPPV) as post-extubation respiratory support in preterm neonates with respiratory distress syndrome(RDS)

Vapendavir (VPV) is potent virostatic antiviral agent active against all known enterovirus species. VPV binds to the viral capsid, thereby inhibiting viral attachment to the target cell and, independently, preventing release of viral RNA (ribonucleic acid) into the cell. Alt VPV-101 is meant to investigate vapendavir in patients with chronic obstructive pulmonary disease (COPD) who develop a rhinoviral infection. This is a Phase 1, open-label, unblinded study. The primary objective of this study is to characterize single and multiple dose (plus a loading dose) plasma PK profiles of VPV in healthy participants (Group A) and participants with COPD (Group B). Group A is an open-label, 2-sequence, and up to a 3-period, cross-over study to assess the single-dose PK parameters and safety of VPV. Healthy participants may opt to participate in only the first 2 periods, all 3 periods or BID dosing, but it is preferred that participants complete all 3 periods. Group B is an open-label, multi-dose investigation of VPV PK parameters and safety in participants with COPD. Post-dose, follow up will continue for a minimum of 14 days and a maximum of 30 days, depending on which Group the participant is in and which periods said participant completes. There is a target for up to 24 adult participants comprised of healthy participants and participants with COPD.

Approximately 8% of all births occur between 30-36 weeks of gestation ('moderate-late' prematurity). Respiratory tract infections (RTI) and wheezing illnesses disproportionally affect preterm infants resulting in a 1.5-2 fold higher hospitalisation rate during the first years of life compared to term born children. Besides prematurity, several other postnatal modifiable influencing factors are associated with increased risk of respiratory morbidity and impaired pulmonary development. These factors include RTI, rapid weight gain, air pollution, tobacco smoke exposition, vitamin D deficiency, maternal stress and antibiotic usage. The investigators hypothesize that a follow-up program aiming at prevention of modifiable influencing factors can reduce respiratory morbidity in moderate and late prematurity. Objectives: To reduce respiratory disease burden in moderate-late preterm infants in the first 18 months of life

This project plans on a community-based exercise intervention (Urban Training) combined with therapeutic education program, by using public spaces and urban walkable trails, adapted to each patient needs and capabilities in patients with chronic obstructive pulmonary disease (COPD). The main objective of the present study is to evaluate the effects comparing different levels of supervision (face-to-face vs telematic) in the short-, medium- and long-term with respect to: (primary outcome): exercise capacity, and (secondary outcomes): physical activity, quality of life, mental health and COPD exacerbations.

Study ROR-PH-303, ADVANCE EXTENSION, is an open-label extension (OLE) study for participants with WHO Group 1 PAH who have participated in another Phase 2 or Phase 3 study of ralinepag.

Bronchiolitis is a common viral infection of the small airways of infants and some affected infants will require hospital admission. Severe bronchiolitis is a marker for greatly increased risk of developing both preschool wheeze and subsequent school age asthma. Since epidemiological studies suggest that exposure to microbial products protects against preschool wheeze, lysates of bacteria may prevent the development of wheeze after bronchiolitis, with long-term beneficial consequences. BLIPA is a phase 2b, randomised, double blind, placebo-controlled study, investigating the efficacy superiority of bacterial lysate (Broncho Vaxom) capsules over placebo, in reducing wheeze in infants after severe bronchiolitis. The primary end point of the study is parent-reported, healthcare-professional confirmed wheeze at 19-24 months. The study aims to test bacterial lysate capsules (3.5mg over 24 months) for safety, efficacy, and to advance mechanistic understanding of its action.