Active clinical trials for "COVID-19"

COVID-19, the coronavirus disease caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), has led to a global pandemic and has exacerbated existing health inequities among vulnerable populations. Despite higher rates of COVID-19 in Black and Latinx individuals compared to White individuals, rates of testing in predominately non-White, low-income communities are significantly lower than in high-income areas. Self-testing, where individuals collect their own samples, is now feasible for the detection of SARS-CoV-2. One promising approach to increase test uptake is the secondary distribution of self-testing kits, where an individual distributes tests to contacts in their social network and encourages them to self-test. The central hypothesis of this clinical trial is that the secondary distribution of SARS-CoV-2 self-tests can significantly expand test uptake among underserved populations. To test this hypothesis, the investigators will conduct a 1:1 randomized controlled trial that will assess a self-testing intervention that promotes the secondary distribution of SARS-CoV-2 test kits compared with test referrals, with a focus on reaching underserved populations.

To investigate short- (3 and 8 weeks) and long-term (6, 9, 12, and 18 months) immune protection or response at the humoral and cellular levels before and after SARS-CoV-2 infection or vaccination in patients with moderately reduced immune status (dialysis patients) and severely reduced immune status (organ transplant recipients, mostly kidney transplant recipients) and immunocompetent subjects (medical staff) in Saxony, Germany.

Historically, health disparities in the US are concentrated among underserved communities and socially vulnerable populations. The disproportionate COVID-19 related morbidity and mortality in communities of color and socioeconomic disadvantage acutely highlight this persistent public health problem, drawing attention to the urgent need for more equitable reach of testing, prevention, and control measures. The proposed research addresses this need using a 2-arm randomized controlled trial (RCT) that will evaluate the effectiveness of the Nurse-Community Health Worker (CHW)-Family Partnership intervention in promoting COVID-19 testing uptake, adoption of COVID control measures, and mutual aid capacity at the household level in an underserved and vulnerable population disproportionately affected by COVID-19. Enrolled households will be randomly assigned to either the intervention group where families will receive the Nurse-CHW-Family Partnership intervention including the offer of in-home testing and referral to seasonal influenza vaccination services, or the treatment-as-usual control group, which will be used to measure actual testing rates among public housing residents in relation to participant and household characteristics. The study hypothesis is that the Nurse-CHW-Family Partnership intervention will improve household-level COVID-19 testing uptake, adoption of COVID control measures, and mutual aid capacity relative to the treatment-as-usual control.

Emerging clinical details of the current SARS-CoV-2 pandemic have illustrated that there are multiple clinical presentations and outcomes of this viral infection. People with an infection have been reported to have a spectrum of disease from severe acute respiratory distress requiring ventilation, to mild respiratory or gastrointestinal symptoms and asymptomatic presentations. Mechanisms explaining the heterogeneity of host response to infection are yet to be characterised. The aim of this project is to understand the host immune response to infection with SARS-CoV-2 over time in convalescent adults, including acquired immune responses, circulating levels of immune signalling molecules, gene expression profiling in peripheral blood and to identify host genetic variants associated with disease progressions or severity. Participants will be healthcare workers who had a diagnosis of COVID-19 (confirmed by positive RT-PCR assay) more than 28 days ago and have recovered and are employed by Cwm Taf Morgannwg University health board. Samples will be processed and analysed to explore immunological, host genetic factors and virological factors that explain pathogenesis and predict outcomes of infection.

This is a randomised controlled, adaptive, multicentre Phase II protocol evaluating different booster strategies in individuals aged 75 years and older already vaccinated against SARS-CoV-2. Part B of this trial foresees testing of different vaccines as a 4th vaccination dose (second booster) for comparative assessment of their immunogenicity and safety against SARSCoV- 2 wild-type and variants in the elderly, a usually neglected population. Additional vaccines and extended follow-up visits can be added through amendments of this sub-protocol. As stated in the EU-COVAT master protocol, this trial, i.e., the EU-COVAT-1_AGED study, implements a specific safety monitoring strategy (see below). Cohorts and arms can be withdrawn or added as deemed necessary according to the criteria specified in this protocol

This study aims to investigate the epidemiology of SARS-CoV-2 infection among: i) HCW who triage patients with suspected SARS-CoV-2 infection and provide care to COVID-19 patients; and ii) laboratory personnel who test clinical samples for SARS-CoV-2 infection. After the second wave of the pandemic enrolment will be widen to any person working at the study hospitals.

There are few data on the immunogenicity of the Pfizer-Biontec BNT162b2 vaccine for the prevention of COVID-19 disease and of side effects in children aged 5-11 years. Therefore, our aim is to determine the immunogenicity and to describe the local or systemic reactogenicity events after vaccination with the BNT162b2 COVID-19 vaccine in children aged 5-11 years for a period of six and half months following the first dose of the vaccine.

Coronavirus disease 2019 (COVID-19) is a novel, has rapid spread worldwide. Currently, almost 11 million cases have been diagnosed and more than 500,000 infected people have died rather than undiagnosed patients . Although COVID-19 is mostly characterized by the respiratory tract affection, cardiovascular complications frequently accompany COVID-19 infections increasing morbidity and mortality in such patients . Arrhythmias are frequently reported in COVID-19 patients, with atrial fibrillation (AF) being the most common form . Although electrical, calcium handling, and structural remodeling plays a key role in AF pathophysiology , the clinical presentation of AF is diverse and the precise mechanisms of AF remain unclear in this large proportion of patients . In patients with severe pneumonia, acute respiratory distress syndrome (ARDS) and sepsis, the incidence of AF during hospitalization is usually high . For instance, about 23-33% of critically ill patients with sepsis or ARDS have AF recurrences and 10% develop de novo AF. Dexmedetomidine preserves the natural sleep pattern and induces cooperative sedation in which patients are easily arousable, leading to to less impairment in cognitive function. In addition, it has an opioid sparing effect, and it is associated with a significant decrease in the duration of delirium, ventilatory care along with ICU stay, and therefore it is associated with a significant improvement in outcomes. These mentioned advantages make dexmedetomidine a fundamental sedative in ICU practice . The use of dexmedetomidine to prevent atrial fibrillation is unclear . However, two retrospective studies also showed that dexmedetomidine sedation might

Vaccines routinely used are extremely safe; however, severe adverse events to vaccines do occur. As vaccination against COVID-19 has begun, adverse events to the vaccine, particularly Guillain-Barré syndrome (GBS), vaccine-induced immune thrombotic thrombocytopenia (VITT)/thrombosis with thrombocytopenia syndrome (TTS), and myocarditis/pericarditis, after COVID-19 vaccination have been reported worldwide. Study hypothesis: there are genetic factors that contribute to increased risks of particular COVID-19 vaccine-induced adverse events. The objective of the study is to determine if there are specific genetic factors strongly associated with each of the COVID-19 vaccine-induced adverse events (i.e., GBS, VITT/TTS, and myocarditis/pericarditis).

The investigators will randomise individuals from family doctors' lists of patients that are at risk of severe Coronavirus Disease 2019 (COVID-19), and that are not registered as having taken the vaccine against the disease. The patients will be randomised to receiving a phone call from their family physician where the participants are given the opportunity to raise questions they might have around vaccination. The investigators will assess whether this has an impact on vaccine uptake.