Active clinical trials for "COVID-19"

For tumor patients, the virus antibody titer produced by the SARS-CoV-2 vaccine is often lower than that of normal people in a short period of time, but in the long run, it can significantly reduce the infection rate and fatality rate of the new coronavirus, and the adverse reactions are mild and there is no significant difference with normal people. However, there is still no real-world research data in China to prove the protective effect of the SARS-CoV-2 vaccine on patients with tumors infected with the SARS-CoV-2 virus.

Background: The indirect effects of the COVID-19 pandemic on mental health are of increasing concern. Perceived stress can lead to binge eating and weight gain. Researchers want to learn more about the relationship between eating behavior and the pandemic. Objective: To study how the stress of the COVID-19 pandemic is affecting eating behaviors and weight. Eligibility: English-speaking adults ages 18 and older who have access to a computer or smartphone connected to the internet. Design: This is an online study. Participants will answer surveys through the study website. Participants will complete a one-time survey. It will ask about their experiences throughout the COVID-19 pandemic, their socioeconomic standing, their mental and physical health, and their eating habits. They will have the option to repeat the survey once a month for the next 12 months. This will show changes in their thoughts and behaviors over time. They will provide their email address to get survey links. Participants will also have the option to complete a 2-minute survey on their smartphone. They will complete the survey daily for 7 days in a row. It will ask about their stress and eating behavior in real time, in their home environment. They will provide their phone number to get survey links via text message. If a participant has taken part in a previous NIH study on the Phoenix AZ campus, they will be asked to share their first and last name, date of birth, and email address. This information will be used to connect data from this study to their past data. Participation is typically 25 minutes but may last up to 1 year. ***To participate in this study go to the REDCap study link: https://redcap.link/nihcovidstudy.***...

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.

This trial is a randomized study to evaluate the immunogenicity of COVID-19 Vaccine (Vero Cell), Inactivated and in population aged 60 years old and 3-17 years old with different schedules compared to that in population aged 18-59 years old with 2-dose schedule. And subjects in the same age are randomly assigned to different immunization schedule groups.

The study will evaluate the immunogenicity, safety and efficacy of vaccines against severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) in oncohematological patient population and compare the results with patients without prior oncohematological disease. The study is comprised of retrospective and prospective parts. In retrospective part, biobanked residual biological patient material and data will be used. In prospective part, vaccinated oncohematological patients and vaccinated patients without prior oncohematological disease will be invited to participate in long-term follow-up. The subjects will be invited for blood sample collection every three months from the second vaccine dose administration, i.e. 3 mos., 6 mos., 9 mos. etc. When the study subject receives booster dose, additional blood samples for immunogenicity analyses will be collected up to 14 days before and 4-8 weeks after the booster vaccine dose. The follow-up time points occurring every three months will be counted from the last vaccine's dose. Ten time points in total will be collected and tested for humoral and cellular immunogenicity. For safety analysis patient self-documented systemic events (fever, fatigue, headache, chills, vomiting, diarrhea, new or worsened muscle pain, and new or worsened joint pain) occurring up to 7 days following each vaccine dose will be systematized and compared between oncohematological patients and healthy individuals. For efficacy analysis, polymerase chain reaction assay (PCR) confirmed symptomatic disease rates, hospitalization rates and mortality rates will be assessed.

A Randomized, Double-blind, Placebo-controlled Clinical Study to Evaluate the Efficacy, Safety, and Immunogenicity of SARS-CoV-2 Variant (BA.4 /5) mRNA Vaccine (ABO1020) in Healthy Subjects Aged 18 Years and Older Who Have Completed the Full Vaccination

Severe acute respiratory syndrome coronavirus 2 (SARS- CoV-2) and the associated coronavirus disease 2019 (COVID-19) have been spreading all around the world for past 3 years. Some of these convalescent individuals experienced long- term sequelae termed 'long COVID', or 'post- acute COVID-19 syndrome'(PACS). Common manifestations are systemic, neuropsychiatric, cardio- respiratory and gastrointestinal [1]. The prevalence of gastrointestinal PACS was 2-5% in different literatures [2][3]. The risk factors of gastrointestinal PACS include anosmia, ageusia, and presence of chronic bowel disease, dyspeptic symptoms and the psychological comorbidity [4]. Previous articles have discussed pathogenesis of PACS, which was associated with increasing serum cytokine level and persisted inflammatory status [5]. Whereas, the influence of chronic inflammation to target organ has not been well studied. Liu et al explored the gut microbiota dynamics in patients with PACS, which revealed higher levels of Ruminococcus gnavus, Bacteroides vulgatus and lower levels of Faecalibacterium prausnitzii [6]. Another article established the association between multisystem inflammatory syndrome in children (MIS-C) and zonulin-dependent loss of gut mucosal barrier [7]. According to previous studies, infectious enteritis may cause subsequent post infectious irritable bowel syndrome [8][9], which was associated with increased gut permeability, T-lymphocyte, Mast cell and proinflammatory cytokine [10][11]. It is reasonable that gastrointestinal PACS might be also associated with dysfunction of gut mucosal barrier. Confocal laser endomicroscopy (CLE) is a new endoscopic imaging tool that enables visualization of gut mucosa changes. The gut permeability could be accessed by CLE in patient with irritable bowel syndrome [12]. This study aimed to explore the association between gut permeability and gastrointestinal PACS.

This study is a Phase I, first-in-human (FIH), double-blind, placebo- and OMV-controlled study of Avacc 10 in healthy adult male and female subjects to investigate the safety, tolerability, and immunogenicity of intranasally administered Avacc 10.

Fatigue and exercise intolerance after survived COVID-19-infection might be related to weakness of the respiratory muscles especially following invasive mechanical ventilation in the Intensive Care Unit. The aim of the project is to measure respiratory muscle function and strength in our respiratory physiology laboratory (Respiratory Physiology Laboratory, Department of Pneumology and Intensive Care Medicine, Head: Professor Michael Dreher) in patients who survived a severe COVID-19-infection (25 with a severe course requiring mechanical ventilation in the intensive care unit, 25 with a moderate-severe course requiring administration of supplemental oxygen only, respectively). Based on this data the aim is to develop a model which determines the severity, pathophysiology and clinical consequences of respiratory muscle dysfunction in patients who had been hospitalised for COVID-19. This will potentially prove the importance of a dedicated pulmonologic rehabilitation with respiratory muscle strength training in patients who had been hospitalised for COVID-19.

Patients with COVID-19 and comorbidities including alcohol associated liver disease (ALD) are at risk for severe illness and abrupt or sudden clinical deterioration with ventilatory failure. â-hydroxy â-methyl butyrate (HMB), a non-nitrogenous leucine metabolite with anabolic properties, increases muscle mass and contractile function and enhances immune function. We aim to study the natural course of COVID-19 in patients with ALD and test whether HMB can affect ventilatory deterioration and improve short and long-term morbidity, mortality, and recovery from critical illness in symptomatic COVID-19 patients with ALD.