Active clinical trials for "COVID-19"

Only 5% of patients infected with COVID-19 develop severe or critical Coronavirus disease 2019 (COVID-19) and there is no reliable risk stratification tool for non-severe COVID-19 patients at admission. Finding a way to predict which patients with an initial mild to moderate presentation of COVID-19 would develop severe or critical form of COVID-19 according to CT-scan data, simple clinical and biological parameters is challenging. In this multicentric study, the study aims to construct a predictive score for early identification of cases at high risk of progression to moderate, severe or critical COVID-19 combining simple clinical and biological parameters and qualitative, quantitative or artificial intelligence (AI) data from the initial CT from non-severe patients.

The pandemic of a new coronavirus SARS-COV-2, which causes COVID-19 disease, has spread rapidly and is a major public health challenge. While the focus is primarily on containing the number of cases and finding alternative therapies, information is still lacking to elucidate the dynamics of viral circulation and to understand the distribution of the infection in the population. The cases reported in Argentina and worldwide could plausibly represent only a small proportion of the number of asymptomatic or poorly symptomatic cases that exist in society. However, the magnitude of this dissociation between symptomatic cases and asymptomatic persons is unknown. Knowing this information is of strategic importance as it will allow the estimation of a community prevalence and the evaluation of the best containment strategy. In fact, although all social distancing measures are now indispensable, the feasibility of prolonging the measure over time is a complex issue and in any case will require population-based information. The best way to approach the estimation of a true population prevalence is to take representative samples from the population and test them periodically. These experiences were carried out in other contexts showing heterogeneous results within the community studied. In Spain, for example, the range of antibodies present in the population varied from 1.1% to 14.2%, also showing that an important part of the population had had contact with the virus without symptoms. Studies in Switzerland and the United States also show similar findings. However, these estimates are not automatically transferable to other settings. The city of Buenos Aires has a particular demographic composition with an important group of the population living in shantytowns (it is estimated that between 7% and 10% of the population lives in shantytowns) and with much heterogeneity among the different communes of the city. In the villas, the incidence rates of COVID-19 infection differ significantly from those present in the group "outside the village". However, there is also an important difference in the incidence rates by commune, even without considering the villas. Thus, it is important to know the sero-epidemiology of antibodies against SARS-COV2 in a representative sample of the city of Buenos Aires. For this purpose, a nationally produced test (COVIDAR IgG) developed by professionals from CONICET and Instituto Leloir will be used. The aim of this initiative is to estimate the true dimension of the COVID-19 epidemic in the City of Buenos Aires, by studying the immunological status of the Buenos Aires population in relation to SARS-Cov2, as well as to observe the evolution of the infection among the population, since this information is essential to guide future public health measures related to the control of COVID-19. To achieve this objective, a comprehensive sero-epidemiological study will be carried out to provide estimates of past SARS-Cov2 infection with sufficient precision to be representative of the sero-epidemiological status of the Buenos Aires city population.

The main differences observed between SARSCoV-2 pneumonia and other epidemic viral pneumopathies (e.g., seasonal influenza) are the greater infectivity of SARSCoV-2, the clinical severity of the disease, particularly in young patients without co-morbidities, and the observation of radiological images related to significant parenchymal aggression in a large number of patients. The lesions in the acute phase correspond essentially to bilateral ground glass opacity more or less associated with condensations which would be markers of more severe infections. The major scope of the lesions in the acute phase raises the question of whether or not the scanning anomalies are completely resolved over time, and the possible impact on lung function. This risk of sequelae is very important to study given the large number of patients affected by SARSCoV-2, especially since these are often young patients who appear to be "healthy". In the current context of the CoV-2 SARS pandemic, the improved quality and availability of diagnostic scanners provides a wealth of information on the semiology and progression of lung disease with minimal exposure to ionizing radiation. A majority of hospitalized patients with SARSCoV-2 received a CT scan in the early phase of the disease. Indeed, the French Society of Radiology has recommended the performance of a CT scan without injection in thin sections in case of suspicion or for confirmation of the diagnosis in patients presenting initial or secondary clinical signs of severity and justifying hospital management due to the initial lack of reagents for performing biological tests (RT-PCR) and the high sensitivity of the CT scan and its specificity in epidemic periods. The present study aims to study the kinetics of lung involvement in SARS CoV 2, to study the predictive character of the chest CT scan performed at the patient's discharge on the existence of radiological sequelae at 3 months but also at 1 year in order not to misunderstand the constitution of late fibrosis after partial resolution of the CT images. The investigatos will study the correlation between possible radiological abnormalities and the clinical presentation (patient symptoms and lung function). The rigorous follow-up of these patients will allow us to set up, if necessary, early treatment of the detected abnormalities (inhaled corticoids in case of bronchial or bronchiolar damage, study of the place of an anti-fibrosis treatment in case of fibrosis,...).

Ycovid-19 aims to be a rapid diagnostic test for SARS-CoV-2 infection, which will allow a reliable diagnosis to be made in 10 minutes, and on easy-to-use devices. This test will be developed using innovative technology developed at the Parc Taulí University Hospital, which increases the immunogenicity of SARS-CoV-2 differential antigens. The increased immunogenicity of these antigens will allow to detect, with a high sensitivity and specificity, the antibodies in the serum of patients infected with SARS-CoV-2. This test will serve to confirm dubious results as well as reduce false negatives from the PCR test, which will ultimately help reduce transmission of the infection.

Covid-19 mainly affects the respiratory system. Multiple organ dysfunction and a particularly progressive respiratory insufficiency along with a widespread coagulopathy presumed to be due to infection-associated inflammation and the resulting cytokine storm, are strongly associated with high mortality rates. In this study, the association between thrombosis risk and clinical presentation of Covid-19 is investigated.

The purpose of this study is to evaluate the performance of a non-invasive olfactory device as a rapid indicator of COVID-19 in positive subjects.

This is a multi-center, prospective registry study of subjects undergoing hemodialysis for treatment of end-stage renal disease in a DaVita center. The objective of this study is to understand whether and to what degree anti-SARS-CoV-2 antibodies mitigate the risk of subsequent SARS-CoV-2 infection and COVID disease within the ESKD population.

The purpose of this study is to collect genomic and clinical data among a cohort of hemodialysis patients and analyze the association between genetic markers and the development and severity of illness in response to SARS-CoV-2.

This is a single center observational autopsy study, conducted during the first wave of the coronavirus disease (COVID-19) pandemic in France. The main objective is to evaluate brain damages in patients who died from COVID-19 to inform the cause of death. Investigations include macroscopic and histology examinations, and virology analyses.

Non-urgent medical care, such as fertility treatments, has been massively postponed during the past weeks due to the COVID19 pandemic. The lockdown and the closure of IVF centers might cause anxiety and depression among infertile couples, who are already exposed to the distressing experience of infertility and for whom the wait for a baby already appears unending. Few data are available regarding the impact of SARS-CoV-2 on pregnant women and foetus, or on fertility. This study aims to assess the views of infertile couple regarding the potential risks of COVID during their fertility treatment and their personal experience of the COVID pandemic and their expectation for further treatment .