Active clinical trials for "Respiratory Tract Infections"

ELVIS COVID-19 is a pragmatic web-based Bayesian adaptive randomised controlled, parallel group trial of hypertonic saline nasal irrigation and gargling (HSNIG) compared to standard care in participants with clinically suspected or confirmed COVID-19 being managed at home.

T-cell exhaustion may limit long-term immunity in COVID-19 patients. T cells can lose their ability to fight viruses and tumors when they have prolonged exposure to these enemies. New data suggests people who experience mild COVID-19 symptoms show the molecular signs of exhausted memory T cells and therefore could have a reduced ability to fight reinfection. On contrary people who develop severe COVID-19 symptoms may be better protected from reinfection. A recent study reported that the 82.1% of COVID-19 cases displayed low circulating lymphocyte counts . It has been reported that, in the case of chronic viruses, continuous PD-1 expression causes T-cell exhaustion, and impairs the ability of killing the infectious cells . The adumbration of patients with COVID-19 is characterized by a diminished lymphocyte percentage, with a similar proportion of CD4+ and CD8+ T-cells. The quantity of T-cells, mostly CD8+ T-cells, presenting high expression rates of late activity marker CD25 and exhaustion marker PD-1 increases. Therefore, SARS-CoV-2 is able to make changes by modifying the acquired immune system, including B and T cells. According to experiments, PD-1's expression, as an important factor in the induction and maintenance of circumferential tolerance keeping the stability of T-cells, has been found to have a higher percentage in different cells of COVID-19 patients. In an experiment conducted by Diao et al., on the patients with SARS-CoV-2, it was observed that the expression of PD-1 on the surface of T-cells was increased significantly; it was also shown that during the SARS-CoV-2 -induced disease, additional expressions of PD-1 and Tim-3 on the T-cells were directly related to the disease's severity; the factors that were also increased in other viral infections. T cell exhaustion" phenomenon could be reversed relatively easily, for example when the T cells are no longer exposed to the virus or tumor. But unfortunately, although exhausted T cells recovered from chronic infection (REC-TEX) regain some function and features of memory T cells (TMEM), they retain epigenetic scars indicating the control of gene expression is "locked in" to their exhaustion history. Once T cells become exhausted, they remain fundamentally 'wired' to be exhausted-thus it may be hard to get them to become effective virus- and cancer-fighters again," said John Wherry, PhD, chair of the department of Systems Pharmacology and Translational Therapeutics and director of the Penn Institute of Immunology in the Perelman School of Medicine at the University of Pennsylvania. Furthermore, COVID-19 may infect T lymphocyte cells and induce apoptosis and apoptotic markers. Lymphocytopenia was also found in the Middle East respiratory syndrome (MERS) cases. MERS-CoV can directly infect human primary T lymphocytes and induce T-cell apoptosis through extrinsic and intrinsic apoptosis pathways, but it cannot replicate in T lymphocytes. However, it is unclear whether SARS-CoV-2 can also infect T cells, resulting in lymphocytopenia. A study showed that T cells express a very low expression level of hACE2 on its cell surface and T-cell lines were significantly more sensitive to SARS-CoV-2 infection when compared with SARS-CoV . In other words, these results tell us that T lymphocytes may be more permissive to SARS-CoV-2 infection. Therefore, it is plausible that the S protein of SARS-CoV-2 might mediate potent infectivity, even on cells expressing low hACE2, which would, in turn, explain why the transmission rate of SARS-CoV-2 is so high. Through recent advances in genomic editing, T cells can now be successfully modified via CRISPR/Cas9 technology. For instance, engaging (post-)transcriptional mechanisms to enhance T cell cytokine production, the retargeting of T cell antigen specificity or rendering T cells refractive to inhibitory receptor signaling can augment T cell effector function. Therefore, CRISPR/Cas9-mediated genome editing might provide novel strategies for inducing long term immunity against COVID-19.Immunotherapies with autologous T cells have become a powerful treatment option for many diseases like viral infection or cancer. These include the adoptive isolation and transfer of naturally-occurring virus/tumor-specific T cells and the transfer of T lymphocytes that have been genetically modified . According to the investigator, exhausted virus-reactive CD8+ memory T cells will be isolated from patients with mild infection using a modified antigen-reactive T cell enrichment (ARTE) assay. exhausted virus-reactive CD8+ memory T cells will be collected and both Programmed cell death protein 1(PDCD1) gene and ACE2 gene will be knocked out by CRISPR Cas9 in the laboratory. The lymphocytes will be selected and expanded ex vivo and infused back into patients.

Coronavirus-2019 disease (COVID-19) is a highly infectious respiratory disease that causes respiratory, physical and psychological dysfunction in patients. With the increased understanding of the severity of COVID-19 and clinical evidence in accordance with the opinions of first-line clinical experts involved in the treatment of this epidemic, the investigators believe that the participation of patients with sequelae of COVID-19 in a Pulmonary Rehabilitation Program would be of utmost importance. According to recent scientific recommendations for patients with sequelae of COVID-19, respiratory rehabilitation would alleviate symptoms of dyspnea, anxiety and depression and, eventually, improve physical functions and quality of life. Therefore, it is essential to anticipate early rehabilitation after the acute phase of ARDS, in order to limit the severity of the effects of the ICU and promote rapid functional recovery. Physiotherapy will play a role in providing exercise, mobilization and rehabilitation interventions for survivors of critical illnesses associated with COVID-19, in order to enable a functional social return.

The primary objective of the phase 1 trial is to identify a dose of topotecan that will be safe to take forward into a Phase 2 trial, with no unexpected toxicities or drug-drug interactions with standard therapy for COVID-19. The investigators hypothesise that a single dose of low-dose Topotecan will blunt the expression of inflammatory genes in patients with moderate COVID-19, without cytotoxic side effects.

The purpose of this study is to assess the efficacy and safety of HLIM

The intent of this study is to see how boys and girls aged 1-5 and coughing since 1-2 days due to common cold respond to a specific protective cough syrup taken before going to bed for one night, with respect to a similar but not specific syrup (placebo). The symptoms evaluated include especially cough frequency but also cough intensity, bother, and sleep quality of the child and parents.

The use of both levamisole & Isoprinosine has both synergistic and complementary effect in the treatment of COVID 19 infection

The COVID-19 pandemic has been characterized by high morbidity and mortality, especially in certain subgroups of patients. To date, no treatment has been shown to be effective in controlling this disease in hospitalized patients with moderate and / or severe cases of this disease. Hydroxychloroquine and lopinavir / ritonavir have been shown to inhibit SARS-CoV viral replication in experimental severe acute respiratory symptoms models and have similar activity against SARS-CoV2. Although widely used in studies of critically ill patients, to date, no study has demonstrated its role on the treatment of high-risk, newly diagnosed patients with COVID-19 and mild symptoms.

Antimicrobial resistance rates have reached alarming levels and the Worlds Health Organisation (WHO) states it constitutes a serious public health concern by threatening one of the most effective and mortality lowering interventions in modern medicine. Part of the solution to this problem includes minimizing overuse of antibiotics. But clinical signs alone are often not reliable to guide antibiotic treatment decisions and additional tests may be warranted to assist the doctor. Such tests include point-of-care biomarkers of infection like C-reactive protein (CRP) and procalcitonin (PCT). Targeting antibiotic use to the few patients with a high probability of benefit and withholding in the many with non-serious respiratory infection is a promising strategy and readily implemented in clinical practice. The Procalcitonin guided Antibiotics in Respiratory Infections (PARI) study will assess the effect of a novel point-of-care PCT guided antibiotic stewardship in acute respiratory tract infections in general practice. The overall aim of the PARI study is to reduce antibiotic use in patients with acute respiratory tract infections by targeting antibiotic treatment only to patients with a suspected bacterial etiology and thus likely to benefit from antibiotic therapy. The main research questions are: Does the addition of a point-of-care Procalcitonin test to standard care reduce antibiotic use in primary care? Is the intervention safe for the patients? The PARI study is a pragmatic two-arm (intervention and control (standard care) open randomized non-inferiority trial (up to 1 day difference in recovery) in general practice.

General:Prospective, randomized, double blind controlled trial of the food supplement GOLDTRAIN PLUS, to assess its safety and efficacy in comparison to placebo in subjects with upper respiratory infection. Hypothesis: The food supplement GOLDTRAIN PLUS will be superior to placebo in shortening the time to recovery from the disease symptoms. Study design and outcome measures:Study population of 182 generally healthy subjects with acute respiratory infection randomized in 1:1 ratio to active supplement versus placebo treatment, with randomization stratified by site. The study supplement administration will be continued for 7 days, and patient global assessment (PGA) will be the main primary measurement tool, based on a self-reporting questionnaire filled and monitored every 12 hours for 7 consecutive days. Throat and nasal swabs determining type of viral infection, will be taken at inclusion of patient and a number of blood tests at the end of treatment to look for any adverse effects of the medication. Analysis and conclusion: All data-from the filled questionnaires, clinical follow up and laboratory studies will be analyzed by multivariate analysis to determine the efficacy of the supplement and its correlation to the clinical and laboratory parameters.