Active clinical trials for "COVID-19"

Rationale: COVID-19 is associated with severely increased morbidity and mortality in patients with chronic kidney disease stage G4-G5 and patients on dialysis or after kidney transplantation. Therefore, effective SARS-CoV-2 vaccination would be of great clinical importance in these patients. However, SARS-CoV-2 vaccination studies have excluded these patients so-far. Literature data indicate that vaccination may be less effective in these patient groups. Objective: To assess the efficacy and safety of SARS-CoV-2 vaccination in patients with chronic kidney disease stage G4-G5, patients on dialysis or after kidney transplantation during two years follow-up after vaccination. Study design: prospective single center observational cohort study. Study population: all Dutch patients on dialysis with data registered in the Dutch Dialysis registry (RENINE) all Dutch patients after kidney transplantation with data registered in the Dutch national kidney transplant registry (NOTR). All Dutch patients with chronic kidney disease stage G4-G5 registered in the Santeon hospitals. Intervention: After SARS-CoV-2 vaccination according to standard of care, blood will be drawn for antibody response measurements at day 28 and month 6 after 2nd vaccination at by mailer-based finger-prick in 3400 hemodialysis patients, 600 peritoneal dialysis patients, 4000 patients after kidney transplantation and 4000 patients with chronic kidney disease stage G4-G5. Patients who will undergo a 3rd SARS-CoV-2 vaccination via the national vaccination program for immunocompromised patients will be asked to carry out the mailer-based finger-prick 28 days after the 3rd SARS-CoV-2 vaccination, instead of the antibody measurement 6 months after the 2nd SARS-CoV-2 vaccination. Main study parameters/endpoints: The primary endpoint is efficacy of SARS-CoV-2 vaccination determined as: - the incidence of COVID-19 after vaccination. Secondary endpoints are mortality adverse events of specific interest according to (inter)national authorities in collaboration with LAREB presence of HLA-antibodies in dialysis patients on the waiting list for a first kidney transplantation acute rejection and graft failure in patients after kidney transplantation In a subset of patients additional secondary endpoints will be assessed the antibody based immune response at 28 days after completion of SARS-CoV-2 vaccination. the durability of antibody based immune response at 6 months compared to at 28 days after having received two subsequent SARS-CoV-2 vaccinations, in patients that have not received a 3rd SARS-CoV-2 vaccine. the antibody based immune response at 28 days after having received the 3rd SARS-CoV-2 vaccination. The incidence of these endpoints will be compared, if applicable, to those: in the general population who are vaccinated in patients on dialysis or after kidney transplant who are not vaccinated Within these patient groups endpoints will be compared between recipients of different vaccines.

The adaptive immune response, consisting of antiviral T and B cells, is critical for providing protection against viruses such as SARS-CoV-2, both during an active infection and later following a subsequent exposure. They can both also potentially contribute to pathogenesis if they are overstimulated. Despite these advances in knowledge, there are still significant gaps in understanding of what constitutes a protective or immunopathologic immune response and its durability. Significant knowledge gaps also remain pertaining to the early recognition of COVID patients with increased risk of clinical deterioration who require continued hospitalization and the use of more intensive treatments designed to improve outcomes. Data from non-COVID patients with MI show that platelet surface expression of FcγRIIa, the low-affinity receptor for the Fc fragment of immunoglobulin (Ig) G, identifies patients at high and low risk of subsequent cardiovascular events. Platelet expression of FcγRIIa is increased by interferon γ20 that is significantly elevated in severe COVID-19 infections. The high prevalence of arterial thrombosis among COVID-19 patients and the central role of thrombosis in respiratory failure support the hypothesis that elevated platelet expression of FcγRIIa will identify COVID patients at increased risk of thrombotic complications and clinical deterioration. In addition to the potential role of platelet activation in thrombosis associated with COIVD-19, the endothelium may also play a significant role. The investigators hypothesize that elevated EMPs in plasma will identify patients at high risk of thrombosis and clinical deterioration. To begin to address the knowledge gaps above and obtain preliminary data for future large grant submission, the investigators propose a small, prospective, single-center cohort study that will enroll patients hospitalized for COVID-19 infection and exhibiting a range of disease severity. Biosamples will be obtained and used to study T and B cells, antibody repertoire, and durability of protective immunity, and also to quantify platelet expression of FcγRIIa and circulating EMPs, as described in the protocol.

This study will evaluate the efficacy, safety, antiviral activity, and pharmacokinetics of study drug RO7496998 (AT-527) compared to placebo in non-hospitalized adult and adolescent participants with mild to moderate coronavirus disease 2019 (COVID-19) in the outpatient setting.

The purpose of this study is to understand how to prevent COVID-19 spread in a school like the Mary Cariola Center (MCC) in Rochester, NY by answering questions like these: how do activities in the school alter chances of infection? Are there people infected with the COVID-19 virus who have no symptoms? How is spread of COVID-19 affected by vaccination rates? Is there any hesitancy to get the vaccine and what are the reasons? This information will be used to help keep the school open and the students and staff safe. Eligible participants are those that work at the Mary Cariola Center (MCC) and interact with the students at MCC who have a high risk of infection from COVID-19. The study lasts for up to 16 months.

The purpose of this study is to establish the antiviral efficacy of ensovibep against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in humans, identify the optimal dose, and demonstrate its clinical value for treating COVID-19 in adult ambulatory patients.

This is a Prospective, Randomized, Multi-center, Open label, Phase 1/2 study to Evaluate the Safety and Efficacy of Equine COVID-19 Antiserum [F(ab')2]. BSV has developed Equine COVID-19 antiserum from horse serum for the use in COVID-19 infection. The indication proposed is to provide passive immunization to the COVID-19 infected patient thereby reducing the viral load and prevention of disease progression. Clinical phase 1 and phase 2 studies have been planned to be conducted. The phase 1 study will be conducted on two dosages to find the safety and tolerability in patients. Based on the results of phase 1 study the phase 2 shall be initiated.

In this work, the investigators are partnering with Contra Costa Health Services (CCHS), the department of health in Contra Costa County, CA, to measure COVID-19 vaccinations and other COVID-19 related preventive health behaviors in the county's Medicaid managed care population. This work will test ways to increase COVID-19 vaccine uptake. The investigators hypothesize that small financial incentives and other low-cost behavioral nudges can be used to increase vaccine uptake and reduce disparities in uptake among diverse racial/ethnic minority populations.

Coronavirus disease 2019 (COVID-19) which is caused by the virus SARS-CoV-2 has resulted in an ongoing global pandemic. It is unclear whether the relatively low number of reported cases of COVID-19 in people with CF (pwCF) is due to enhanced infection prevention practices or whether pwCF have protective genetic/immune factors. This study aims to prospectively assess the proportion of pwCF, including both adults and children with CF who have evidence of SARS-CoV-2 antibodies over a two-year period. This study will also examine whether pwCF who have antibodies for SARS-CoV-2 have a different clinical presentation and what impact this has on their CF disease. The proposed study will recruit pwCF from paediatric and adult CF centres throughout the United Kingdom. Serological testing to detect antibodies will be performed on blood samples taken at month 0, 6, 12, 18 and 24 with additional time-points if bloodwork is available via normal clinical care. Clinical data on, lung function, CF-related medical history, pulmonary exacerbations, antibiotic use, and microbiology and vaccination receipt, will be collected during routine clinical assessments. Associations will be examined between socio-demographic and clinical variables and serologic testing. The effects of SARS-CoV-2 infection on clinical outcomes and analyse end-points will be examined to explore any age-related or gender-based differences, as well as subgroup analysis of outcomes in lung-transplant recipients and pwCF receiving CFTR modulator therapies. As pwCF receive COVID-19 vaccination a comparison of the development and progression of anti-SARS-CoV-2 antibodies in pwCF following natural infection and vaccination SARS-CoV-2 over time will be performed.

Comparison of the effects of CYT107 vs Placebo administered by intra-muscular route (IM) at 10μg/kg twice a week for three weeks on immune reconstitution of lymphopenic COVID-19 patients

The United States is battling dual pandemics: healthcare provider (HCP) exhaustion and COVID-19. The COVID-19 pandemic death toll has surpassed 595,000 and continues to climb as the worldwide outbreak continues. Moreover, we have yet to understand the health impacts of "long-COVID". As evidenced by the national burnout epidemic in HCPs, persistent workplace stress not only impacts personal provider wellbeing, but also influences effective practice and patient outcomes. To address this need, we propose a 4-year, multi-site, four-arm parallel-group randomized clinical trial (RCT) comparing 2 non-pharmacological interventions: Transcendental Meditation (TM) and Experience Resolution Methodology (ERM) to Treatment as Usual (TAU). Participation in this study lasts up to 24 months for enrolled participants and is considered minimal risks.