View clinical trials related to Influenza.
Filter by:The goal of this cluster randomized controlled trial is to evaluate the effect of health education interventions on influenza vaccination rates and health literacy in primary school students in the city of Dongguan in China. Individuals aged 7 to 12 years who are in grades 4-5 in primary schools in Dongguan will be enrolled. 20 primary schools will be randomly selected, with half designated as intervention group schools and the remaining half as control group schools. The intervention group will receive a monthly health education intervention focused on influenza vaccination for 5 months, while the control group will continue with their routine school health education for 5 months. Researchers will compare the differences in influenza vaccination rates and influenza vaccination health literacy levels between the intervention and control groups after 5 months to see if health education can promote influenza vaccination health literacy among primary school students.
This study will evaluate the relative vaccine effectiveness of quadrivalent adjuvanted inactivated influenza vaccine (aIIV4) versus quadrivalent high-dose inactivated influenza vaccine (HD-IIV4) in preventing polymerase chain reaction (PCR)-confirmed influenza and influenza-related outcomes in adults ≥65 years of age during the 2023/24 and 2024/25 influenza seasons. The study is an observational study conducted at Kaiser Permanente Northern California (KPNC), an integrated health care system in the United States.
Background: Influenza (flu) virus causes 3 to 5 million cases of severe illness and up to 650,000 deaths per year worldwide. Current vaccines work well against single strains of flu virus. But no single vaccine works well against all flu viruses that can cause illness. Objective: To test an experimental flu vaccine (FluMos-v2) in healthy adults. Eligibility: Healthy adults aged 18 to 50 years. Design: Participants will have 11 clinic visits in 10 months. They must agree not to get a licensed flu vaccine while taking part in this study. FluMos-v2 will be given with a needle injected into a muscle in the upper arm. Participants will receive a follow-up phone call the following day. Participants will be given a diary card, a ruler, and a thermometer. They will take their temperature every day for 7 days after receiving the shot. They will measure any skin changes at the injection site. They will record their findings and how they feel. Participants will receive a second FluMos-v2 shot after 4 months. They will repeat the other follow-up steps. Participants will have 9 other clinic follow-up visits. Blood will be drawn at each visit. Participants should also come to the clinic if they develop flu-like symptoms during the study. Participants may opt for an apheresis 2 weeks after each shot: Blood will be removed through a needle in the vein of 1 arm. The blood will run through a machine that separates out the white blood cells. The remaining blood is returned through a needle in the other arm.
This is a Phase 1, comparator-controlled, dosage escalation study of an intramuscularly administered mRNA-LNP vaccine, DCVC H1 HA mRNA Vaccine, encoding full-length H1 HA of influenza A/California/07/2009 (H1N1), in up to 50 adult volunteers aged 18 to 49 years, designed to assess vaccine safety and immunogenicity at varying doses. Eligible participants will be sequentially enrolled into dosing groups (10 mcg, 25 mcg, 50 mcg, and selected optimal dose) of DCVC H1 HA mRNA Vaccine. Dosing will commence at the lowest dose (10 mcg) and only escalate to the next higher dose if safety concerns are not identified. Up to ten subjects will be enrolled per dosing group. An optimal dosing group will be selected based on safety outcomes from the 10 mcg, 25 mcg, and 50 mcg dosing group. For the optimal dose, the highest dose with no identified safety concerns as determined by the SRC will be selected. This approach will allow determination of an optimal dosing group which will include 10 optimal dose vaccine recipients. Ten separate participants will be enrolled to receive standard quadrivalent inactivated influenza vaccine (IIV4). The primary goal of this study is to assess the safety of two doses of DCVC H1 HA mRNA Vaccine administered intramuscularly in healthy adults (18-49 yrs) at dosage levels of 10 mcg, 25 mcg, and 50 mcg.
This study will be a prospective observation of the use of commercially available hemp and cannabis products marketed for immune support.
This is a randomised controlled feasibility study to evaluate a patient engagement tool (PET) that has been designed for the target population. The PET will be evaluated from previous qualitative data collected from community this feasibility trial. Eligible patients from six GP practises from Tower Hamlets and Newham will be randomised to the intervention or control during the study.
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).
This is a comparative prospective diagnostic accuracy study reported according to the STARD guidelines. Citizens at an outpatient COVID19 test facility at Testcenter Danmark Valby will be invited to participate in the study on a volunteer basis. The enrolled participants will have the planned oropharyngeal swab performed in the test center and sent for a SARS-CoV-2 RT-PCR test at TestCenter Danmark, Statens Serum Institut, Copenhagen, Denmark as usual. Besides the planned oropharyngeal swab performed in the test center, the participants will have additional specimens collected in form of saliva, nasopharyngeal-, nasal-, and oropharyngeal swabs. These will all be used for the detection of nucleic acids from the four most common strains of influenza (B Yamagata, B Victoria, A H1N1 and A H3N2), SARS-CoV-2 and RSV A/B. Further we will measure immune mediating cytokines, chemokines, and interleukins in the different specimens. These analyses will be performed at Technical University of Denmark (DTU).
This is a Phase 1, single-site, open-label, comparator-controlled dose escalating study of an intramuscularly (IM) administered mRNA-LNP vaccine encoding for (Vaccine Research Center) VRC H1ssF 3928 of up to 50 healthy adult volunteers aged 18 to 49 years, inclusive. This study is designed to assess the safety and immunogenicity of one dose of H1ssF 3928 mRNA Vaccine. Eligible participants will be sequentially enrolled into dosing groups (10 mcg, 25 mcg, and 50 mcg, selected optimal dose) to receive the H1ssF 3928 mRNA Vaccine at the specified dose. A separate group of 10 participants will receive licensed quadrivalent influenza vaccine (IIV4). Subjects receiving IIV4 will be followed for safety but only their immune responses will be compared to those of participants receiving H1ssF 3928 mRNA Vaccine. Dosing of H1ssF 3928 mRNA Vaccine will commence at the lowest dose (10 mcg) and only escalate to the next highest dose if safety concerns are not identified. Up to ten subjects will be enrolled per dosing cohort. Reactogenicity and adverse event (AE) information through Day 7 and clinical laboratory results through Day 8 from the first three dosing groups will guide the selection of an optimal dose group to include 10 subjects who will receive the optimal dose of mRNA-LNP. The primary objective of this study is to assess the safety of a single dose of VRC H1ssF 3928 mRNA-LNP vaccine administered IM in healthy adults, 18-49 yrs, at doses of 10 mcg, 25 mcg, and 50 mcg.
The goal of this clinical trial is to assess tolerability, reactogenicity, safety and immunogenicity of the Flu-M Tetra vaccine as compared to the VaxigripTetra vaccine in terms of prevention of influenza in children aged 6 months to 17 years old inclusive.