View clinical trials related to SARS-CoV-2.
Filter by:We propose to demonstrate that HIV-1 and SARS-CoV-2 are capable of targeting long-lived HSPC with self-renewal capacities. These progenitors, thus transformed into host cells, can give rise to a durable source of infected cells with an impact on hematopoiesis.
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.
The primary purpose of this study is to learn about how well different versions of the Pfizer-BioNTech COVID-19 vaccine (called BNT162b2) work at preventing death, severe COVID-19 that requires a trip to the hospital, and overall use of healthcare resources, such as needing to go the doctor or urgent care due to illness. Pfizer is not enrolling any participants for this study. Instead, existing data from different health data sources will be used to help answer the scientific questions Pfizer is interested in learning more about.
This is a randomized, blinded, and dose escalation phase I trial in males and non-pregnant females, starting at 18 years of age, inclusive, who are in good health and meet all eligibility criteria. This clinical trial is designed to assess the safety and immunogenicity of Recombinant COVID-19 Trivalent (XBB.1+BQ.1.1+Prototype) Protein Vaccine （CHO Cell）（LYB002V14）.
The purpose of this post-marketing study is to assess the safety of Comirnaty monovalent XBB.1.5. for booster vaccination children ages 6 months though 4 years under actual use medical practice.
The main objective of the study is to evaluate the safety of the elasomeran/davesomeran and andusomeran vaccines as used in routine clinical practice.
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.
The purpose of this study is to evaluate the immunogenicity, safety, and reactogenicity of mRNA-1083 as compared with active control, co-administered licensed influenza and severe acute respiratory syndrome coronavirus 2 (SARS CoV 2) vaccines, in 2 independent age-group sub-study cohorts, healthy adults 65 years and older (Cohort A) and healthy adults 50 to <65 years of age (Cohort B).