View clinical trials related to Covid19.
Filter by:This is a double blind, randomised, placebo-controlled trial to evaluate orally-dosed Testofen (a specialised extract of Trigonella foenum-graecum (Fenugreek) seed) compared to placebo on post COVID-19 symptoms in otherwise healthy participants 18 years and over.
Despite the SARS-CoV-2 virus being present worldwide, and although it is now clear that children are affected by the disease with milder symptoms than adults, many immunological questions, which are very relevant for Public Health reasons and for the organization of services, remain unsolved. The role of serology for the diagnosis of COVID-19, particularly in the pediatric age, is still very uncertain. Preliminary evidence suggests that not all children with SARS-Cov-2 infection develop antibody levels that can be detected by currently employed methods. This makes it crucial to identify other methodologies that are able to evaluate the true prevalence of prior SARS-CoV-2 infection in the pediatric population. Many other aspects of the immunological mechanisms of response to SARS-CoV-2 are also uncertain, such as the role of cellular immunity, and generally the role of immunity (cellular and antibody) in protecting against the disease in the medium and long term. Finally, questions remain open regarding cross-immunity with other previously circulating coronaviruses and their impact on the pediatric population in terms of protection against COVID-19 infection, disease development, or reinfection. This study aims to help clarify the role of serology and other immune response tests in the diagnosis of COVID-19 in the pediatric population. Specifically, it aims to assess: the prevalence of SARS-CoV-2 seroconversion cases among the pediatric population accessing the National Health System (NHS), at different moments in time and in different regions of Italy; whether cellular immunity tests can help to identify children who have had SARS-CoV-2 infection, particularly children with low antibody levels, and thus to better estimate the prevalence of prior SARS-CoV-2 infection; the prevalence of cross-reactivity with other coronaviruses; whether immunity (antibody and cellular) is protective in the medium/long term; and if there are healthy carriers, i.e. individuals who have had prior SARS-CoV-2 infection, who are asymptomatic but may harbor SARS-CoV-2 in the pharynx, with the risk of transmitting it.
Study outcomes and endpoints: - Primary outcome: to assess clinical characteristics of infants with confirmed COVID-19 infection at birth and to evaluate long-term respiratory consequences of neonatal COVID-19 infection. - Secondary outcome: to evaluate the prevalence and natural history of lung function impairment among infants with confirmed COVID-19 compared to infants with no history of COVID-19. To this end, infants will undergo pulmonary function testing (PFT) with the Exhalyzer D device (Eco Medics, Switzerland).
This is a two-way (retrospective and prospective) study of COVID-19 infection in an observational cohort of patients with chronic hepatitis B treated with antiviral therapy. Patients with chronic hepatitis B who received anti-HBV treatment in the Second Department of Hepatology, Beijing Ditan Hospital Affiliated to Capital Medical University from February 2022 to December 2023 were enrolled. After enrollment, demographic data of patients, information on antiviral treatment of chronic hepatitis B, COVID-19 vaccination, COVID-19 infection and COVID-19 incidence and treatment from January 2022 to pre enrollment, and data on HBV virus and serology, clinical biochemistry, liver and lung imaging, COVID-19 nucleic acid and COVID-19 antibody examination of patients were collected. After enrollment, prospective anti-HBV treatment, HBV virology, clinical biochemistry, liver imaging and COVID-19 infection and morbidity were observed. The patients with COVID-19 infection during the prospective observation period were observed for COVID-19 infection, onset and treatment, including body temperature, clinical symptoms, signs, cardiac examination, pulmonary imaging, COVID-19, clinical biochemistry, disease severity, time of virus negative conversion, hospital stay and outcome. The influence of COVID-19 infection on liver disease and the influence of interferon anti-HBV treatment on COVID-19 infection, its pathogenesis and prognosis were studied.
Coronavirus infection has an impact on several aspects of everyday life including the levels of Physical Activity (PA). Investigators wish to (1) detect changes on PA levels in recovered SARS-CoV-2 (COVID-19) adults compared to the pre-infection levels and (2) identify a potential relationship between changes of PA levels and pre-illness vaccination profile along with individual's number of infection/reinfections. It is assumed that the impact of COVID-19 infection on PA would be more pronounced in cases of repeated infections and/or in the unvaccinated compared to the vaccinated individuals against COVID-19.
This study will assess the efficacy of HH-120 nasal spray in participants for the post-exposure prevention of SARS-CoV-2.
People with persistent symptoms of covid-19 have increased needs for needs for management of their overall health (physical, psychological and social). Persistent covid-19 symptoms have a negative impact on quality of life. By proposing a follow-up and an intervention on the reduction of these symptoms, the symptoms, the study will improve quality of life.
This is a randomized, double-blinded, placebo-controlled clinical trial. This study is to evaluate the effectiveness and safety of Yinqiaosan-Maxingganshitang in the treatment of the major symptoms of mild and moderate COVID-19 patients by telemedicine.
This clinical study aims to investigate the safety and efficacy of nebulized inhalation of extracellular vesicles derived from mesenchymal stem cells combined with standard therapy for COVID-19-infected individuals. The primary objective is to determine whether nebulized MSC-secreted extracellular vesicles may be a feasible approach to alleviate COVID-19-induced lung injuries and promote recovery. Participants will be allocated to receive either nebulized MSC-secreted extracellular vesicles twice a day (BID) for 5 days as the test group or nebulized saline solution twice a day for 5 days as the control group. Researchers will compare the test and control groups to evaluate the safety and efficacy of extracellular vesicles in combination with standard therapy.
Rationale: The highest rates of coronavirus disease (i.e., COVID-19) vaccine hesitancy in the US are among young adults (YAs) aged 18-25. Our preliminary studies show that social norms - perceptions of peers' vaccination attitudes/behaviors - are most strongly related to YAs' vaccine intentions/uptake. Most YAs underestimate the perceived importance of vaccination and their peers' intentions to be vaccinated. The proposed research will develop and test an intervention to correct misperceived norms for vaccination hesitancy and uptake. Methodology: Rapid prototyping with 20 unvaccinated YAs will help refine the content and design of the online intervention. Then, a diverse national sample (N=600) of unvaccinated YAs will be randomized to treatment or an attention-matched control. The treatment condition will receive personalized normative feedback (PNF) designed to correct normative misperceptions for vaccine hesitancy and uptake. Normative feedback will be derived from the US Census Bureau's Household Pulse Survey. Follow-up surveys will be administered at 1, 2, 3, and 6 months to assess key outcomes including vaccine uptake, intentions, and reasons for vaccine hesitancy. Aims and Data Analysis: - Aim 1: Develop and refine a PNF intervention for vaccine hesitancy/uptake with user feedback from YAs. Rapid analysis of qualitative data will involve looking for themes in responses. Changes will be made iteratively to refine intervention content, design, and delivery. - Aim 2: Evaluate intervention efficacy for increasing vaccine uptake and reducing time to first vaccine dose, relative to control, over the following year. - Aim 3: Examine mediators (changes in perceived norms) and moderators (intellectual humility, identification with other people and young adults) of intervention efficacy. A longitudinal moderated mediation model will be examined. Impact: Findings will clarify the causal role of psychological determinants of vaccine hesitancy (social norms, intellectual humility, group identification). If preliminary intervention efficacy is supported, this intervention could be a low-cost, and easily disseminated strategy to promote YAs' vaccine uptake and contribute to public health efforts to address the COVID-19 pandemic.