View clinical trials related to Covid19.
Filter by:This study is an investigation of preoperative asymptomatic COVID screening nationwide. The hypothesis is that because these tests are performed without reference to pretest probability of COVID-19 disease, unlike tests based on symptoms or close contact with infected individuals, these studies may represent a more unbiased sample of the local population prevalence of asymptomatic COVID disease burden.
This retrospective cohort study aims to characterise outcomes for patients treated on an intensive care unit (ICU) with COVID-19 in England and Wales, one year after discharge from hospital. Outcomes will be compared with patients admitted as an emergency to an ICU for other conditions. The study will use existing national audit data linked to routine healthcare datasets.
Background: To investigate the prevalence of SARS-CoV-2 infection in hospitalized patients with vascular disorders after implementing institutional and governmental safety measures. Materials and Methods: Vascular patients (VPs) admitted to our tertiary care hospital were routinely tested for SARS-CoV-2 infection on a two days basis between March and December, 2020. The prevalence of SARS-CoV-2 was compared between VPs and two independent Austrian populations (April and November 2020) tested by the Austrian Ministry of Science. The results were also compared to a cohort of health care personnel (HCP) working in close proximity to the study patients, tested weekly, between March and December, 2020. RT-PCR and antigen test were used to detect SARS-CoV-2.
The objective of this study is to determine the safety and immunogenicity of two different strengths (4 µg and 6 µg) of an inactivated COVID-19 Vaccine compared to placebo so that to demonstrate the safety and efficacy in prophylaxis of COVID-19
The CORSAAR study is an observational, prospective study to investigate the natural biology of COVID-19
This study is a randomized, double-blind, placebo-controlled trial to evaluate the efficacy of cetirizine and famotidine in reducing the duration of symptoms in patients with COVID-19. Secondary aims are to determine if cetirizine and famotidine decrease severity and duration of symptoms, incidence of hospitalizations, ICU admissions, and death.
The aim of this study is to evaluate the efficacy of dexamethasone in hospitalized adults with COVID-19 pneumonia who do not require supplementary oxygen on admission, but have high risk of developing acute respiratory distress syndrome (ARDS). This is a prospective, multicenter, phase 4, parallel-group, randomized and controlled trial that is open-label to investigators, participants and clinical outcome assessors. Eligible participants include adults (age 18 years or older), diagnosed with SARS-CoV-2 infection, evidence of infiltrates on chest radiography or computerized tomography, peripheral capillary oxygen saturation ≥94% and 22 breaths per minute breathing room air, and high risk of developing ARDS defined by a lactate dehydrogenase higher than 245 U/L, C-Reactive Protein higher than 100 mg/L, and absolute lymphocytes lower than 800 cells/µL. Eligible participants will meet two of the three before analytical criteria associated with severe COVID-19. Patients will provide written informed consent. Exclusion criteria include patients with a history of allergy to dexamethasone, pregnant or lactating women, oral or inhaled corticosteroids treatment within 15 days before randomization, immunosuppressive agent or cytotoxic drug therapy within 30 days before randomization, neutropenia <1000 cells/µL, human immunodeficiency virus infection with CD4 cell counts <500 cells within 90 days after randomization, dementia, chronic liver disease defined by ALT or AST ≥5 times the upper limit of normal, chronic kidney injury defined by a glomerular filtration rate ≤30 ml/min, hemodialysis or peritoneal dialysis, uncontrolled infection, and patients who are already enrolled in another clinical trial. Study participants will be randomized in a 1:1 ratio to receive dexamethasone base 6 mg once daily for seven days or standard of care. The primary endpoint is to prevent of development of moderate ARDS. Based on the Berlin criteria, moderate ARDS is defined by a PaO2/FiO2 ratio >100 mmHg and ≤200 mmHg. Study participants will be randomized in a 1:1 ratio to receive dexamethasone versus standard of care using a randomization platform. Included participants will be hospitalized at the time of randomization. The study will be undertaken at Infanta Leonor-Virgen de la Torre University Hospital, Enfermera Isabel Zendal Emergency Hospital, and Infanta Cristina Hospital, Madrid, Spain.
The reason the investigators want to do this research; Especially after Covid-19 infection, no research has been found on functional status in the long term. Therefore, in our study, the investigators aimed to evaluate exercise capacity, functional status, peripheral muscle strength, balance, anxiety and depression level, consciousness, work productivity, pain, fear of movement, and quality of life in patients with Covid-19 and to compare them with healthy individuals who have not had COVID-19.
Coronavirus disease (Covid-19) is a new public health crisis threatening humanity caused by SARS-CoV-2. Although it originated in China's Hubei province in late 2019, it has spread to many countries around the world. Although Covid-19 first caused infection by affecting the lung, current data showed that the gastrointestinal tract was also affected by detecting viral RNA in Covid-19-infected human intestinal epithelial cells and feces. The association has been confirmed by showing that patients hospitalized with COVID-19 have significant changes in intestinal bacterioma. These changes have been characterized by a significant reduction in gut microbiome (BM) diversity associated with gastrointestinal complaints of the acute phase of infection (e.g. abdominal pain, nausea, vomiting, diarrhea), depletion of beneficial bacterial symbionts, and enrichment of opportunistic pathogens (e.g. Streptococcus, Rothia, Actinomyces). In particular, recent studies have evidence that patients with Covid-19 are more prone to a dysbiosis profile of the gut microbiota, infected individuals present irregular gut microbiota, and even dysbiosis (disruption of microbiota balance) in the gut microbiota. The first case reports reported in China suggested that there was no virus found in amniotic fluid, umbilical cord blood, throat swabs of the newborn, placenta, vaginal fluid, and breast milk samples infected with Covid-19. The latest data indicate that there is no vertical transmission to the fetus, and so far, no viruses have been found in the cord blood of newborns born from Covid-19 positive pregnant women, nasal sampling and amniotic fluid and placentas of pregnant women. However, the effect of intestinal microbial structure affected by Covid-19 on breast milk microbiota and the effect of a dysbiosis to occur on infant health or the effect of the healing properties of breast milk on Covid-19 are still not clearly known. This views are that intestinal microbial colonization originating from the gastrointestinal system affected by Covid-19 will affect breast milk microbial colonization. However, there is no study on this subject. For this purpose, aim in this study was to determine the breast milk microbiome and biologically active proteins (secretory immunoglobulin A (sIgA), lysozyme, lactoferrin, osteoprotegerin (OPG), leptin, adiponectin and β-endorphin (b-) levels of mothers who had Covid-19 with healthy mothers. will be compared.
A large proportion of persons who have had COVID-19 have reported persisted symptoms as fatigue and dyspnea months post infection which affect activities of daily living. The aim of the study is to examine the feasibility and safety of a concentrated rehabilitation program with a mobile application follow-up for persons with persistent symptoms post COVID-19 infection. We will examine recruitment availability, adherence to the program, goal achievement, and resources requirements. Methods: A feasibility study with one group pre-post test design with 10-20 persons between 18-67 years, with persistent symptoms post COVID-19 will be included. The intervention is 3+ 1-2 days concentrated rehabilitation with a mobile application follow-up for 3 months. Following assessments wil be used: Cardiopulmonary exercise testing, lung function, functional performance tests, questionnaires regarding dyspnea, fatigue, anxiety, depression, work-status, health status, sleep behavior, physical activity level. Demographic data before and after the intervention will be presented. Focus group interview will be done with the participants. The interview will be analysed using systematic text condensation.