View clinical trials related to SARS-CoV-2.
Filter by:To evaluate immune responses of an Investigational mRNA-1273.815 vaccine against the Omicron subvariant strain (XBB.1.5) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
The main objective of the surveillance is to evaluate the incidence of the adverse events (AEs), and other safety related information in South-Korean population.
The objective of the VIRCHILLD project is to identify age-related modifications of the bronchial epithelium physiology that account for differences in the response and susceptibility to respiratory viruses. Epidemiology and cell-based data show that respiratory virus infections differentially affect children, adults or the elderly populations. The current worldwide pandemic of SARS-CoV-2 clearly highlighted this notion with a large part of the deaths occurring in the elderly population and very few deaths amongst children. This may be linked to a decreased transmission and/or viral load with SARS-CoV-2 in children compared to adults and elderly. Less in the public eye is the observation that other major respiratory virus targeting the bronchial epithelium (BE) such as rhinovirus (RV) and adenovirus (AdV) cause important clinical feature in children and have a much lower incidence in adults and the elderly populations, which is the opposite to the situation with SARS-CoV-2. Based on this remarkable discrepancy between respiratory viruses the investigators hypothesize that intrinsic age-controlled properties of the respiratory epithelium under resting physiological conditions determine virus susceptibility and virus propagation.
This is a randomized, double-blind, placebo-parallel intervention clinical study that will include approximately 108 healthy subjects based on inclusion and exclusion criteria. Patients meeting inclusion and exclusion criteria were randomly assigned to one of four different cohorts. Subjects in each cohort were randomly assigned 5:1 to two parallel administration groups, one of which served as a control. Each cohort was given either the experimental drug or placebo by nasal spray at different doses and intervals, and blood was collected on an empty stomach before the first dose. Right nostril and nasal swabs were collected for immunotoxicity, immunogenicity (immunogenicity collection and detection in cohorts 3 and 4 only), and drug concentration detection. Subjects in the first three cohort were required to return to the study Center 3±1 days after the last dose for blood samples, bilateral nostril and nasal swabs for drug concentration, immunotoxicity, physical examination, vital signs, and safety laboratory indicators (blood routine, blood biochemical, and urine routine). Subjects in cohort 4 returned to the study center 7±2 days after the last dose. To evaluate the safety and tolerability of A8G6 COVID-19 neutralization and antibody combined nasal spray in healthy subjects by comparing the test results of subjects in different cohorts, and to study its concentration in serum and nasal swabs in healthy subjects.
This is a randomized, double-blind, placebo-parallel intervention clinical study that will include approximately 72 healthy subjects based on inclusion and exclusion criteria. Patients who met the inclusion and exclusion criteria were randomly assigned to one of three different cohorts. Subjects in each cohort were randomly assigned in a ratio of 5:1 to two parallel dosing groups, one of which served as the control group. Each cohort was given either an experimental drug or a placebo nasal spray at different doses and intervals, and blood was collected on an empty stomach before the first dose, and left nasal swabs and throat swabs were collected for immunotoxicity and drug concentration testing. 14 days after the last dose, subjects will return to the study Center for blood samples, left nasal swabs, and throat swabs to be collected for drug concentration, immunotoxicity, and safety laboratory indicators (routine blood and biochemistry). To evaluate the safety and tolerability of MY-586 SARS-CoV-2 Neutralizing Antibody nasal spray in healthy subjects, and to evaluate its serum concentrations and nasal and pharyngeal swab concentrations by comparing the test results of different cotillaries.
This study is an adaptive, randomized, double blind, platform trial evaluating promising investigational products (IP) for safety and efficacy as early outpatient treatment and post-exposure prophylaxis for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2).
This is an observational cohort study to evaluate real-world vaccine effectiveness and durability of Moderna COVID-19 vaccine among a diverse population at Kaiser Permanente Southern California (KPSC). The primary objective of this study is to evaluate the vaccine effectiveness (VE) of receipt of Moderna COVID-19 vaccine in preventing SARS-CoV-2 infection and severe COVID-19 disease. SARS-CoV-2 infection will be defined as a positive antigen test result as well as a positive molecular diagnostic test among symptomatic or asymptomatic participants or a COVID-19 diagnosis code. Severe COVID-19 disease will be defined as COVID-19 hospitalization or mortality.
This study aims to use vaccination information from the California Immunization Registry linked with HealthVerity insurance claims for patients residing in California for the following: - to measure effectiveness of the Pfizer-BioNTech bivalent booster against post-COVID conditions. - to understand characteristics of patients who are receiving COVID-19 vaccines. All patients who have been de-identified in the HealthVerity database are eligible to be included for both aims of this study.
This is a multi-center, randomized, blinded, placebo-controlled, phase 3 clinical study to evaluate the efficacy, safety and immunogenicity of SARS-CoV-2 bivalent mRNA vaccine (LVRNA021) as booster in participants aged 18 years and older who completed primary/1 booster dose(s) of SARS-CoV-2 vaccination.
Many cancer patients are highly susceptible to infection and respond poorly to vaccination. This observational study will determine molecular and cellular features of immunity to viral pathogens in participants with cancer and compare them to healthy controls. The aim is to identify how antiviral immunity in participants with cancer differs from that in healthy participants to understand why cancer patients are more susceptible to infections. In this context, the investigators will also evaluate immunity to medically indicated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and seasonal influenza vaccine received by study participants during standard care (vaccines are not part of the study).