View clinical trials related to Covid19.
Filter by:A randomized, double-blinded, placebo-controlled trial will be conducted to evaluate vortioxetine, an antidepressant with established pro-cognitive properties, for the treatment of cognitive deficits which develop during or after an infection consistent with COVID-19, continue for 2+ months, and are not explained by an alternative diagnosis (i.e., post-COVID-19 condition). Participants (aged 18-64 years) will receive vortioxetine (10-20 mg) or placebo for 8 weeks. Participants 65+ years will receive vortioxetine (5-10 mg) or placebo for 8 weeks. Changes in cognitive functioning from baseline to endpoint (week 8) will be assessed via the Digit Symbol Substitution Test (DSST). Study visits may be conducted remotely (e.g. via Zoom, by telephone), and/or in-person.
Our current focus is to reduce the spread of COVID through distribution of Rapid Antigen Test Kits (ATKs) to low-income, high-risk communities across Bangkok. Hospitals across Thailand have been operating over capacity for many months, both in receiving the high number of cases as well as in testing for COVID. RT PCR, although highly sensitive, requires potentially infectious people to travel to testing sites, wait in line, and takes 1-2 days to return results, leading to further spread of COVID through increased contact with other high-risk individuals. On the contrary, testing via an Antigen Test Kit (ATK) can be done by everyone at home with the potential to test more frequently than the PCR test due to much cheaper cost. This means that ATK testing can be mixed into people's daily lifestyle, but another underlying reason is that ATKs only show test results as positive only when an infected person is contagious. Another key advantage is the rapid results, which helps people identify risks quickly, limiting spread even faster. Our trial therefore aims to achieve the following primary objective: To monitor the results of freely distribute ATKs in real environments to measure its effectiveness in reducing COVID spread in communities by comparing the incidence of COVID-19 between communities with rapid antigen tests and without rapid antigen tests. Secondary objectives are: 1. To compare the incidence of severe COVID-19 between communities with rapid antigen tests and without rapid antigen tests. 2. To study the decrease in incidence of community-acquired COVID-19 in communities with rapid antigen tests. 3. To study factors affecting community-acquired COVID-19 in these communities. 4. To campaign for the government to recognize the importance and effectiveness of weekly testing, and propose suitable strategies to fight COVID.
This is a retrospective cohort study to assess the real world effectiveness of the Oxford/AstraZeneca COVID-19 vaccine in England. The study is using linkage of the English national databases on COVID-19 vaccination, testing, medical records, hospitalization, and death.
Age is the main risk factor associated with the severity of COVID-19. From the beginning of the vaccination campaign, elderly subjects are part of the priority population. However, immunosenescence appears to play a role in the natural post-COVID-19 immunity of convalescent elderly subjects and also in the post-vaccination response. However, vaccination recommendations for both naïve (2 doses of vaccine) and convalescent subjects (1 dose of vaccine) do not differ according to age. To date, there is little data to suggest that the response to the vaccine in naïve or convalescent subjects may vary according to age in terms of qualitative and quantitative response and duration.
This is a Phase 1 clinical trial to assess the safety and immunogenicity of AdCLD-CoV19-1 in healthy adults.
Rationale Patients with severe coronavirus disease 2019 (COVID-19) frequently fulfill the criteria for acute respiratory distress syndrome (ARDS), with extensive and bilateral abnormalities on the chest radiography (CXR) and the chest computed tomography (CT) abnormalities. The 'Radiographic Assessment of Lung Edema' (RALE) score, the 'COVID-19 Reporting and Data System' (CO-RADS) score, and the 'CT severity score' may all have prognostic value in critically ill patients with acute respiratory failure due to COVID-19. Objectives To compare the prognostic value of the RALE score, the CO-RADS score and the CT severity score in critically ill patients with ARDS due to COVID-19. Hypotheses The RALE score, the CO-RADS score and the CT severity score have prognostic value (primary). The RALE score, the CO-RADS score and the CT severity score correlate well. Study design National, retrospective observational study. Study population Critically ill COVID-19 patients with acute respiratory failure, who received at least one CXR and one chest CT scan during critical illness. Method CXRs are visually scored by two independent investigators, using the RALE score approach. Chest CT scans are scored by an independent radiologist, using the CO-RADS score and the CT severity score. Demographic, ventilation and outcome data are captured from the hospital systems. Main study parameters/endpoints ICU mortality (primary) and hospital-, 28-, 90-mortality, the number of days alive and free from invasive ventilation, duration of ventilation in survivors, and length of stay in ICU and hospital. Nature and extent of the burden and risks associated with participation, benefit and group relatedness Participants will not directly benefit from participation, but burden is absent. The CRX and chest CT scans have already been obtained as part of routine clinical care. Collecting CXR for RALE scoring and chest CT scans for CO-RADS and CT severity scoring, clinical and outcome data is of no harm for individual patients.
The purpose of this clinical trial is to learn whether the study medicine prevent symptoms of COVID-19 in adults who have been exposed to household member(s) with a confirmed symptomatic COVID-19 infection. All participants in the study will receive treatment for COVID-19 as needed, based on their regular doctor's recommendation. Two-thirds of participants will also receive two study medicines (PF-07321332 and ritonavir) by mouth twice a day for either five or ten days. We will compare the experiences of people receiving the study medicines to those of the people who do not. This will help us determine if the study medicines are safe and effective
This is the first Case Studies article highlight factors determine the effectiveness of Convalescent Plasma Therapy (CPT) in Indonesia, accompanied by supporting data and images before and after the patients received the therapy. This Case Studies gives a huge contribution as CPT still on going as multicentre study and apply massively as emergency approved treatment in Indonesia.
A prospective observational study to identify different extrapulmonary clinical manifestations of SARS-CoV-2 and its correlations with the disease severity grades.
Mixed-methods process evaluation of a residence-based asymptomatic SARS-CoV-2 testing participation pilot