View clinical trials related to SARS-CoV-2 Infection.
Filter by:Three complementary activities will be implemented:1) Baseline and repeat census of the catchment population; described in a separate protocol (IVI-ECOVA-03-WS1); 2) Enhanced surveillance for COVID-19 disease, and 3) AEFI-enhanced surveillance. The mass vaccination campaign will be conducted by the Government and is not part of this protocol.
This study seeks to explore immunological mechanisms in patients with Multisystem Inflammatory Syndrome in Children (MIS-C) to improve the understanding of this pathogenesis of this disease. In a cohort of MIS-C patients diagnosed during the Wild type, Alpha, Delta and Omicron waves, research samples will be analyzed for whole-blood RNA expression, proteomics, inflammatory cytokines, cellular immune populations, autoantibodies, as well as host genetic markers.
NEUROCOVID is a prospective multicenter study comparing the proportion of patients with SARS-CoV-2 viral RNA at the level of the olfactory clefts in a group of cases compared to a group of controls as well as the correlations between the virological and cellular abnormalities observed in the olfactory mucosa and the severity of the clinical neurological profile
To evaluate the immunogenicity and safety of the third dose SARS-CoV-2 Vaccine, Inactivated (Vero Cell) in adults aged 18 years and above, who inoculated the third dose after 6 months since finished two doses schedule of CoronaVac or BBIBP-CorV.
The study RECOVER is a randomized, open-label, multicenter phase II trial, designed to assess the clinical outcome of SARS-CoV-2 disease in high-risk patients (group 1 to group 4) following treatment with anti-SARS-CoV-2 convalescent/vaccine-boosted plasma or standard of care.
This is a combined retrospective and prospective, longitudinal, observational meta-cohort of individuals age 0-25 years who will enter the cohort with and without SARS-CoV-2 infection at varying stages before and after infection. Individuals with and without SARS-CoV-2 infection and with or without PASC symptoms will be followed to identify risk factors and occurrence of PASC. This study will be conducted in the United States and participants will be recruited through inpatient, outpatient, and community-based settings. Study data including age, demographics, social determinants of health, medical history, vaccination history, details of acute SARS-CoV-2 infection, overall health and physical function, and PASC symptoms will be reported by participants or collected from the electronic health record using a case report form at specified intervals. Biologic specimens will be collected at specified intervals, with some tests performed in local clinical laboratories and others performed by centralized research centers or banked in the Biospecimen Repository. Advanced clinical examinations and radiologic examinations will be performed at local study sites with cross-site standardization.
To evaluate the immunogenicity and safety of the third dose SARS-CoV-2 Vaccine, Inactivated (Vero Cell) in adults aged 18 years and above, who inoculated the third dose after 3, 4, 5, or 6 months since finished two doses schedule of CoronaVac or BBIBP-CorV.
This is an open label, phase I dose-escalation study to evaluate the safety of coronavirus-specific T cell (CST) therapy for prevention of SARS-CoV-2 infection in immunocompromised patients following hematopoietic stem cell transplantation (HSCT). Participants will receive donor-derived CSTs for prevention of SARS-CoV-2 infection after HSCT (≥28 days and <4 months after HSCT). In this dose escalation trial, three doses (1x107/m2, 2x107/m2, and 4x107/m2) will be tested for safety, with study arms for adult (≥18 years of age and <80 years) HSCT recipients (Arm A) and pediatric (≥12 years of age and <18 years) HSCT recipients (Arm B), and defined dose escalations in each study arm. The study agent will be assessed for safety (stopping rules defined) and antiviral activity.
A longitudinal open-label study will include health professionals and patients with immune-mediated inflammatory diseases (IMID) who will receive the ChAdOx1 nCoV-19 vaccine (AZD1222), in a standard 3-dose schedule with an interval of 12 weeks (first-second dose) and 24 weeks (second-thrid dose), in the vaccination campaign against SARS-CoV-2 to assess the safety, efficacy and duration of the short- and long-term humoral and cellular immune response after vaccination for COVID-19 and compare the vaccine response between individuals who have or have not had previous SARS-Cov 2 infection.
The Coronavirus Disease 2019 (COVID-19) pandemic has claimed over 5 million lives globally. Fortunately, a substantial and growing number of SARS-CoV-2 vaccines with very high efficacy have been developed, manufactured, and rapidly approved. Novel mRNA vaccines such as the BNT162b2 (Pfizer-BioNTech) and mRNA-1273 (Moderna) have reported a stunning >94% efficacy against COVID-19. However, global access has not been equitable, with many low- and middle-income countries having no vaccine access or access under emergency use mainly to traditional inactivated SARS-CoV2-2 vaccines such as BBIBP-CorV (Sinopharm Beijing), CoronaVac (Sinovac) and BBV152 (Bharat Biotech). Emerging studies have shown that lower concentrations of neutralizing antibodies (Nab) are attained after CoronaVac than after a mRNA-based vaccine in healthy individuals. This difference seems to be more pronounced in immunocompromised patients who are at higher risk of severe COVID-19 and death from COVID-19. As such several countries including United States, Israel and Chile have recommended a third vaccine dose for this vulnerable population. In this observational study we will explore the humoral response to the BNT162b2 vaccine in patients who received two previous doses of the inactivated vaccine Coronavac or two doses of BNT162b2.