Active clinical trials for "Coronavirus Infections"

Convalescent plasma (CP) has been used in recent years as an empirical treatment strategy when there is no vaccine or treatment available for infectious diseases. In the latest viral epidemics, such as the Ebola outbreak in West Africa in 2014, the World Health Organization issued a document outlining a protocol for the use of whole blood or plasma collected from patients who have recovered from the Ebola virus disease by transfusion to empirically treat local infectious outbreaks

Currently there is no standard treatment for SARS-CoV-2 infection. Use of convalescent plasma has been studied in outbreaks of other respiratory infections, including SARS-CoV-1 , MERS-CoV and Hantavirus infection. This study is an open-label randomized trial in which patients with high risk of COVID19-associated respiratory failure will be randomized to early treatment with convalescent plasma (≤ 7 days from symptoms start) or at early signs of respiratory failure or prolonged hospitalization. COVID-19 convalescent plasma will be collected from individuals according to the institutional protocol.

This is a prospective adaptive cohort study of St. Jude employees to determine the rate of SARS-CoV-2 infections that are asymptomatic and to evaluate immunological responses to SARS-CoV-2 infection. Primary Objectives To estimate the proportion of asymptomatic infection with SARS-CoV-2 infection in a population of SARS-CoV-2-naïve adult St. Jude employees To comprehensively map CD4 and CD8 T cell epitopes and response magnitudes to SARS-CoV-2 infection in a population of SARS-CoV-2-naïve adult St. Jude employees who acquire SARS-CoV-2 infection To measure changes in the CD4 and CD8 response magnitude and function to SARS-CoV-2 infection and/or vaccination in a population of St. Jude employees for up to 48 months after infection and/or vaccination. Secondary Objectives To establish seroprevalence of SARS-CoV-2-specific antibodies at baseline, and identify the rate of seroconversion to SARS-CoV-2 in a population of presumably naïve adult St. Jude employees To identify features of T cell responses at baseline and during SARS-CoV-2 infection that are associated with protection against symptomatic or severe COVID-19 disease in a population of adult St. Jude employees To identify risk factors for long-term protection against COVID-19 in a population of adult St. Jude employees To evaluate changes in antibody responses to SARS-CoV-2 in a population of St. Jude employees for up to 48 months after SARS-CoV-2 infection and/or vaccination. To evaluate the saliva antibody and cytokine response to SARS-CoV-2 infection and/or vaccination and identify characteristics that predict protection from subsequent SARS-CoV-2 infection among a population of St. Jude employees followed for up to 48 months after SARS-CoV-2 infection and/or vaccination. To measure changes in saliva antibody responses to SARS-CoV-2 for up to 48 months after SARS-CoV-2 infection and/or vaccination. Exploratory Objectives To establish additional immunological features including host immune or receptor polymorphisms associated with response to SARS-CoV-2 infection To explore SARS-CoV-2 diversity and specific features in a circumscribed population To describe the presence, characteristics, and proportion of short-term re-infection To determine if an association between SARS-CoV-2 viral load in nasal swab specimens and COVID-19 symptoms can be identified in a population of adult St. Jude employees who acquire SARS-CoV-2 To explore the laboratory and clinical response to SARS-CoV-2 vaccine in a population of adult St. Jude employees with and without a history of SARS-CoV-2 infection

Prone positioning is an established intervention in mechanically ventilated acute respiratory distress syndrome (ARDS) patients, with demonstrated reductions in mortality. Preliminary data suggest that awake proning in patients with COVID-19 treated with high-flow nasal oxygenation (HFNO) improves gas exchanges, and might be associated with a reduced need of mechanical ventilation, and reduced mortality. Further investigation in a formal randomized-controlled trial is need.

This is a multi-center, double-blinded study of COVID-19 infected patients requiring inpatient hospital admission randomized 1:1 to daily Losartan or placebo for 7 days or hospital discharge.

A prospective and retrospective cohort study. The objective will to determine the frequency of COVID-19 in pregnant and postpartum women hospitalized with flu syndrome, to evaluate clinical and laboratory predictors of COVID-19 progression and to determine the factors associated with adverse maternal and perinatal outcomes in healthcare centers in two states of Northeast Brazil.The study will be conducted including pregnant and postpartum women with clinical or laboratorial diagnosis of COVID-19, admitted in six healthcare centers in the Northeast of Brazil. All pregnant and postpartum women with clinical and/or diagnosis of COVID-19, attended in prenatal care, in emergency (maternity triage), high-risk pregnancy ward, obstetric intensive care unit and rooming-in ward will be included. The data will be collected in specific forms. The exams will be carried out by trained professionals within each institution.

Coronavirus disease 2019 (COVID-19) is a pandemic infection caused by a virus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Because SARS-CoV-2 is known to require the angiotensin-converting enzyme 2 (ACE-2) receptor for uptake into the human body, there have been questions about whether medications that upregulate ACE-2 receptors might increase the risk of infection and subsequent complications. One such group of medications are anti-hypertensives that block the renin-angiotensin system, including both angiotensin converting enzyme inhibitors (ACEi) and angiotensin II receptor blockers (ARB). Both ACEi and ARB are widely used for the treatment of hypertension. Early reports from China and Italy suggest that many of those who die from COVID-19 have a coexisting history of hypertension. Consequently, there have been questions raised as to whether these 2 types of blood pressure medication might increase the risk of death among patients with COVID-19. However, it is well known that the prevalence of hypertension increases linearly with age. Therefore, it is possible that the high prevalence of hypertension and ACEi/ARB use among persons who die from COVID-19 is simply confounded by age (older people are at risk of both a history of hypertension and dying from COVID-19). Whether these commonly prescribed blood pressure medications increase the risk of COVID-19 or not remains unanswered. Statements from professional cardiology societies on both sides of the Atlantic have called for urgent research into this question. Our study aims to randomize patients with primary (essential) hypertension who are already taking ACEi/ARB to either switch to an alternative BP medication or continue with the ACEi/ARB that they have already been prescribed. Adults with compelling indications for ACEi/ARB will not be enrolled.

The aim of the COVI-PRONE Trial is to determine if early awake prone positioning in COVID-19 patients with hypoxemic respiratory failure; irrespective of the mode of oxygen delivery; reduces the need for invasive mechanical ventilation.

Acute kidney injury (AKI) is reported to occur in 0.5-9% of severe acute respiratory distress coronavirus 2-positive patients and AKI has been identified as an independent risk factor for in-hospital mortality. The present study aims to investigate the incidence of renal outcome of in-hospital patients diagnosed with COVID-19.

The purpose of this study is to a) assess how coronavirus 2019 (COVID-19) affects cardiac function in middle age and older adults and b) assess if a physical activity intervention (increased daily step count by 2,000) can affect cardiac function in a population with a history of COVID-19.