View clinical trials related to SARS-CoV-2 Infection.
Filter by:This is an observational study of participants in three general population health surveys (FinSote 2018, 2019, 2020) who are followed up until the incidence of SARS-CoV-2 infection or end of follow-up. The primary objective is to examine the association between tobacco use and the risk of SARS-CoV-2 infection in a general population sample in Finland.
Currently COVID-19 is an international public health emergency. Most COVID-19 patients have mild or uncomplicated disease, but approximately 14% develop severe disease that requires hospitalization and oxygen therapy, and up to 5% of patients require admission to Intensive Care Units. To date, the only treatments that have shown efficacy in a clinical trial are remdesivir and dexamethasone. The main objective is to provide reliable estimates on the effects of different treatment strategies on the outcome and mortality of patients with SARS-CoV-2 infection.
Study of the safety and immunogenicity of 20vPnC and a booster dose of BNT162b2 administered at the same visit or each vaccine given alone
Immune aging or immunosenescence is characterized by a loss of T cell clonal diversity and a contraction of naïve T cells with proliferative capacity associated with the functional impairment of many others immune cells as well as a chronic low degree of inflammation. A restrictive T cell repertoire is likely more prone to antigen-mediated exhaustion observed during chronic viral infections. Notably, lymphopenia is the most consistent laboratory abnormality in COVID-19 infected patients and both lung-resident and circulating T cells potently up-regulate markers of T cell exhaustion. It is not clear today if the association of COVID-19 disease severity with age is mainly related with the immunosenescence of infected patients. Interestingly, T cell exhaustion and premature immunosenescence have also been observed in chronic inflammatory diseases such as rheumatoid arthritis (RA). To better understand the immunological mechanisms involved in SARS-Cov-2 pathophysiology, the investigators propose to compare the immunosenescence patterns observed during RA, aging and SARS-Cov-2 infected patients in order to design improved therapeutic interventions.
This is a Phase 1, open-label, non-randomized, dose-escalation study using three doses and two schemes of administration of a recombinant vaccine against SARS-CoV-2 based on a viral vector (Newcastle Disease virus) in 90 healthy volunteers at a single research site in Mexico City.
This phase 1 trial aims to assess the safety and tolerability of two doses of ABNCoV2, formulated with and without the adjuvant MF59, in healthy adult volunteers and to identify the dosage and formulation that optimizes the immunogenicity-tolerability ratio 14 days following first vaccination with ABNCoV2.
Pilot, randomized and controlled clinical trial for the evaluation of the decrease in the viral load of SARS-CoV-2 in the oropharynx in patients with COVID-19 through the use of mouthwash containing cetylpyridinium chloride (CPC) (0.07%) in mouthwash.
An interventional clinical trial using oral nicotinamide riboside (NR) in hospitalized patients with COVID-19 infection and acute kidney injury to determine the effect of NR on whole blood nicotinamide adenine dinucleotide (NAD+) levels and to evaluate safety of the use of NR.
This study will compare the safety and tolerability of lyophilized BNT162b2 presented in single dose vials to those of frozen-liquid BNT162b2 in multidose vials and determine whether the immune response is noninferior. Separately, the study will also describe the safety and immunogenicity of frozen-liquid BNT162b2 with lipid nanoparticle size at the upper end of specification and ready to use BNT162b2 (the immediate manufacturing precursor to the lyophilate). Additionally, the study will describe the safety and immunogenicity of an additional dose of frozen liquid BNT162b2 to participants who already received the 2-dose schedule of lyophilized BNT162b2. - 2-dose schedule (separated by 21 days) - At a dose of 30µg (as studied in the Phase 2/3 study C4591001) - In healthy adults 18 through 55 years of age - The duration of the study for each participant will be approximately 2 months (3 visits in total) - The study will be conducted in the United States
The purpose of this study is to assess SARS CoV-2 infection, viral shedding, and subsequent potential transmission in individuals immunized with the Moderna COVID-19 vaccine.