View clinical trials related to Influenza.
Filter by:This study is a single center, randomized, double-blind, placebo-controlled, dose-finding, FIH, Phase 1 study to assess the safety, tolerability, and immunogenicity of the adjuvanted Universal Influenza Vaccine (fH1/DSP-0546LP) after IM administrations in healthy adults.
While the COVID-19 pandemic has highlighted health disparities, Black children have unduly suffered and died from seasonal influenza for decades. Through sustained partnership with Black community stakeholders, novel community-engaged research methods, and an innovative intervention approach, this proposal will explore, develop, and test a Digital Storytelling intervention to reduce influenza vaccination disparities in Black children aged 6 months to 5 years. This project will advance our understanding of engagement methods and interventions that improve health equity and serve as a model for future work to address vaccination disparities, ensuring all individuals have the chance to fulfill their potential free of preventable diseases.
Influenza is still responsible for more than 650,000 deaths per year worldwide and no major improvements in patients' care has been made despite 50 years of research. Especially, there is no therapeutic strategy targeting the dysregulated host response. CXCR4-expressing neutrophils seem to be involved in the rupture of host resistance. The aim of this study is thus to compare the percentage of blood CXCR4-expressing neutrophils between influenza survivors and non-survivors.
This study seeks to demonstrate that the laboratory can mitigate respiratory virus transmission in underserved populations by using laboratory data to identify communities at risk for increase vial activity (hot spots) and intervening with a test-to-treat model provides increased access to influenza diagnostics and treatment in vulnerable and underserved communities.
This multilevel, multidisciplinary, theoretically based, culturally sensitive, community-engaged intervention sets out to mitigate uptake barriers and non-adherence to vaccination schedules as recommended by the CDC and increase influenza, meningitis, pneumonia, VZV, and COVID-19 vaccine rates among under-resourced African American and Latino public housing residents in South Los Angeles.
Influenza virus is a significant pathogen in pediatric solid organ transplant (SOT) recipients. However, these individuals respond poorly to standard-dose (SD) inactivated influenza vaccine (IIV). Recent studies have investigated two strategies to overcome poor immune responses in SOT recipients: (1) administration of high-dose (HD)-IIV compared to SD-IIV and (2) two doses of SD-IIV compared to one dose of SD-IIV in the same influenza season. One study compared HD-IIV vs. SD-IIV in adult SOT recipients and noted that HD-IIV was safe and more immunogenic; however, the median post-transplant period was 38 months. A phase I pediatric study comparing a single dose of HD-IIV vs. SD-IIV was safe with higher immunogenicity, but the study was limited by small sample size and median post-transplant vaccine administration was 26 months. In another phase II trial of adult SOT recipients, two doses of SD-IIV one month apart compared to one-dose of SD-IIV revealed modestly increased immunogenicity when given at a median of 18 months post-transplant. Therefore, these studies lack both evaluation in the early post-transplant period and substantive pediatric populations. Additionally, the administration of two-doses of HD-IIV in the same influenza season has not been evaluated in pediatric SOT recipients. Thus, the optimal immunization strategy for pediatric SOT recipients less than 24 months post-transplant is unknown. In addition, immunologic predictors and correlates of influenza vaccine immunogenicity in pediatric SOT recipients have not been well-defined. The central hypothesis of our proposal is that pediatric SOT recipients 1-23 months post-transplant who receive two doses of HD-quadrivalent inactivated influenza vaccine (QIV) will have similar safety but higher Hemagglutination Inhibition (HAI) geometric mean titers (GMTs) to influenza antigens compared to pediatric SOT recipients receiving two doses of SD-QIV.
This study plans to learn more about whether a stakeholder-informed, standardized inpatient vaccination program will increase influenza vaccination rates of hospitalized children across US pediatric health systems. The first part of the study is to form a multidisciplinary team of stakeholders, including parents, providers, nurses, pharmacists, informaticists, data analysts and communication experts across three sites in synthesizing a best practice implementation guide for an inpatient influenza vaccination program, which will then be piloted at these three sites.
The goal of this observational study is to describe the immune signature of acute pulmonary infection.The main questions it aims to answer are: 1. Nasal mucosal immune response in patients with influenza infection 2. Difference of immune response between Viral sepsis and Bacterial sepsis 3. Immunological differences between Viral sepsis and Viral pneumonia
The present study will evaluate the efficacy, immunogenicity and safety of one dose of OVX836 influenza vaccine 480μg, after intramuscular administration in healthy subjects aged 18-55 years.
Aims and hypotheses to be tested: Primary objective - To compare the IIV responses, in terms of seroconversion rates, using ID IIV with topical 5% imiquimod (IIV-Q-ID), ID influenza vaccine alone (IIV-ID), and the second dose of IM influenza vaccine (IIV-IM) among children who are IIV non-responders. Secondary objectives - To determine the IIV non-responder rate in healthy Hong Kong children. - To investigate the association between HLA molecules and IIV non-responsiveness. Hypotheses - The investigators hypothesize that among IIV non-responder children, the seroconversion rate after ID IIV with topical imiquimod will be significantly higher than a second IM IIV dose. - The investigators hypothesize that the IIV non-responder rate is approximately 5-10% in the paediatric population. - The investigators hypothesize that certain HLA alleles are associated with IIV non-responders.