View clinical trials related to Covid19.
Filter by:Due to the situation this study, originally planted until September 2020, was extended with 7 months until April 2021. This extension was approved by the ethical committee University hospital Ghent, Belgium. The novel SARS-CoV-2 (Severe Acute Respiratory Syndrome-associated Coronavirus type 2) is rapidly spreading over the world causing a condition called Coronavirus disease 2019 (COVID-19). Hospital health care workers (HCW) have received detailed instructions to protect themselves against this infection, but it is likely that at least some of the HCW will get infected either at their workplace or elsewhere. It would be useful to document prevalence and seroprevalence of SARS-CoV-2 and their monthly evolution among Belgian active hospital HCW during a period of 12 months starting beginning of April 2020 and the number of new cases (incidence) of COVID-19 and SARS-CoV-2 seroconversions among Belgian hospital HCW during a period of 12 months which are the primary objectives of this study. Additionally the study will validate serological tests (subject to change/addition depending on the evolution of scientific research) against the plaque reduction neutralization test (PRNT) (gold standard); validate the saliva sample (sampling with Oracol or equivalent) against the standard naso/oro pharyngeal swabbing (NOPS) to perform RT-qPCR for SARS-CoV-2 diagnostic purposes, as well as against the standard serology (serum); validate the nasal swab against the standard (NOPS) to perform RT-qPCR for SARS-CoV-2 for diagnostic purposes; investigate potential risk factors for the infection; quantify the proportion of asymptomatic cases among new cases that develop during a period of 12 months. To reach these primary and secondary objectives the researchers will conduct a prospective cohort study in which a random selection of HCW currently working in Belgian hospitals will be tested monthly (with for the first month an additional testing point at 14 days). The testing will include four kind of laboratory tests, being; a molecular (PCR) test on a nasopharyngeal, a saliva and nasal sample (for nasal and saliva sample only testing until 50 PCR positive and 50 PCR negative samples are collected) and a serological test for which a blood sample is needed. To asses risk factors, at each testing point a questionnaire providing basic socio-demographic and health characteristics of the HCW including presence of symptoms since the previous testing point and the HCW's involvement in caring for COVID-19 patients will be completed. Laboratory data and epidemiological data (questionnaire) will be collected simultaneously. In each of the participating hospitals, one contact person will be designated to coordinate the study locally (ideally a staff member of the local infection and prevention control team) and communicate with the researchers. The sample size calculation indicated the inclusion of 17 randomly selected Belgian hospitals and in each hospital 50 randomly selected HCW. HCW can only be enrolled in the study after give a written informed consent. Laboratory testing will be performed at the Virology Diseases and Immune Response services of Sciensano, Ukkel, and the Virology Laboratory of the Institute of Tropical Medicine, Antwerp. The laboratory test results will be communicated by the laboratory to each participant. Each participant and sample will have a unique code assigned. Data collected through the questionnaire will be send psuedonymised (using the unique code) to the epidemiologist at Sciensano. The laboratory will prepare a list of test results by unique code to be linked for further analysis with the questionnaire data. None of the researchers who will analyse the data will be involved in data collection, nor in the care of COVID-19 patients. This study is a Belgian multicentric study executed by Sciensano, Brussels, in collaboration with the Institute of Tropical Medicine, Antwerp.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the novel coronavirus disease 2019 (COVID-19) pandemic. Among COVID-19 complications, in-hospital cardiac arrest (IHCA) was reported with a very poor outcome in a retrospective single-center study (0,7% of 30 days survival with good neurological outcome among IHCA patients with a resuscitation attempt), related to its natural course and management. The incidence of unexpected in-ICU cardiac arrest (ICUCA) due to COVID-19 is still unknown. Additionally, outcome of COVID-19 patients admitted in ICU for an out-of-hospital cardiac arrest (OHCA) is also undescribed. The objective this study is : - to report the incidence of ICUCA among patients hospitalized in French ICU for COVID-19. - to report morbidity and mortality among COVID-19 patients admitted alive in ICU for an OHCA or an IHCA. The secondary objective is to assess outcome and identify risk factors of ICUCA occurrence among patients admitted for COVID-19.
Currently we do not know how best to treat patients infected with COVID-19. This study is looking at whether randomising participants to either favipiravir or to usual care, can help patients with suspected or proven COVID-19 infection.
Worldwide observational studies indicate a significant prothrombogenic effect associated with SARS-CoV-2 infection with a high incidence of venous thromboembolism (VTE), notably life-threatening pulmonary embolism. According to recommendations for acute medical illnesses, all COVID-19 hospitalized patients should be given VTE prophylaxis such as a low molecular weight heparin (LMWH). A standard prophylactic dose (eg. Enoxaparin 4000IU once daily) could be insufficient in obese patients and VTE has been reported in patients treated with a standard prophylactic dose. In COVID-19 patients, guidelines from several international societies confirm the existence of an hypercoagulability and the importance of thromboprophylaxis but the "optimal dose is unknown" and comparative studies are needed. In view of these elements, carrying out a trial comparing various therapeutic strategies for the prevention of VTE in hospitalized patients with COVID-19 constitutes a health emergency. Thus, we hypothesize that an increased prophylactic dose of weight-adjusted LMWH would be greater than a lower prophylactic dose of LMWH to reduce the risk of life-threatening VTE in hospitalized patients. The benefit-risk balance of this increase dose will be carefully evaluated because of bleeding complications favored by possible renal / hepatic dysfunctions, drug interactions or invasive procedures in COVID-19 patients. This multicenter randomized (1:1) open-label controlled trial will randomize hospitalized adults with COVID-19 infection to weight-adjusted prophylactic dose vs. lower prophylactic dose of LMWH.
Reports of acute pulmonary embolism (APE) associated with COVID-19 have emerged in the literature. For example, Chen et al. described 25 pulmonary CT angiograms examinations from 1008 COVID-19 patients; 10 were positive for pulmonary embolism mostly as segmental or sub-segmental APE. Case reports of APE in Covid-19 patients have been published. Cui et al. found an incidence of deep venous thrombosis in intensive care unit (ICU) patients with severe Covid-19 pneumonia near to 25% (20/81), however without any correlation with potential APE. Despite these initial reports, it is not clear whether APE is more frequent in Covid-19 patients or if the association is just random. In favor of the former, D-dimer levels have been reported as elevated in patients with Covid-19 by two studies, and it has been suggested an independent association between the severity of the disease and the level of D-dimer. Finally, Tang et al. showed that anticoagulant therapy is associated with a decreased mortality at Day-28 in severe Covid-19 patients, in favor of a possible associated coagulopathy. The purpose of this study is to describe the rate of pulmonary embolus in patients classified as COVID-19 infection and who underwent chest CT angiography. The purpose of this study is to describe the rate of pulmonary embolus in patients classified as COVID-19 infection and who underwent chest CT angiography.
Background: The COVID-19 pandemic challenges the available hospital capacity, and this will be augmented by absenteeism of healthcare workers (HCW). HCW are at high risk, currently HCW constitute 20% of all the COVID-19 cases in Denmark. Strategies to prevent absenteeism of HCW are urgently needed. Bacille Calmette-Guérin (BCG) is a vaccine against tuberculosis, with protective non-specific effects against other infections; significant reductions in morbidity and mortality have been reported, and a plausible immunological mechanism has been identified. We hypothesize that BCG vaccination can reduce HCW absenteeism during the COVID-19 pandemic. Primary objective: To reduce absenteeism among HCW with direct patient contacts during the COVID-19 epidemic. Secondary objective: To reduce the number of HCW that are infected with SARS-CoV-2 during the COVID-19 epidemic and to reduce the number of hospital admissions amongst HCW with direct patient contacts during the COVID-19 epidemic. Study design: A multi-center randomized placebo controlled trial. Study population: 1500 HCW with direct patient contacts; defined as nurses, physicians and other medical staff working at emergency rooms and wards where COVID-infected patients are treated. Intervention: Participants will be randomized 1:1 to intradermal administration of a standard dose of BCG vaccine or placebo (saline). Main study parameters/endpoints: Primary endpoint: Number of days of (unplanned) absenteeism for any reason. Secondary endpoints: Number of days of (unplanned) absenteeism because of documented COVID infection. Cumulative incidence of hospital admissions. Risk for participants and impact: Based on previous experience and randomized controlled trials in adult and elderly individuals, the risks of BCG vaccination are considered low. The objective of this trial is to evaluate the potential beneficial effects of BCG vaccination through a lower work absenteeism rate of HCW and/or a mitigated clinical course of COVID infection.
Prospective, mono centric study on COVID-19 patients with or without acute respiratory distress syndrome (ARDS) to analyse the dynamics of the immune response and to search for biomarkers of evolution
The purpose of this study is to investigate the use of home pulse oximetry monitoring in patients with COVID-19 to trend disease progression and identify need for hospitalization.
The novel coronavirus (COVID-19) is affecting the way many people live their lives, including seeking medical care and maintaining good self-care to keep healthy. Additionally, in the event many people become critically ill at once, COVID-19 has the possibility of overwhelming hospitals to the point where they have to make decisions about how to determine who receives intensive care and life-support measures. Many hospitals as well as local or state governments have been working on policies to determine how to make these decisions. This study seeks to learn about how COVID-19 has affected the way patients and healthcare providers care for themselves and about their thoughts and concerns about policies that may "ration" life-support resources.
COVID-19 has a big impact on individuals and society as a whole. Especially persons with (multiple) comorbidities such as stroke are affected. The impact of COVID-19 on stroke rehabilitation delivery and stroke patients' functioning is unclear.