View clinical trials related to Influenza.
Filter by:The purpose of this study is to assess the immunogenicity and safety of GSK Biologicals' quadrivalent influenza vaccine (GSK2282512A) compared to Sanofi Pasteur's Fluzone® Quadrivalent in children 6 to 35 months of age.
This study aimed to evaluate the efficacy and safety of the nature herbal medicine Banlangen granules in patients infected with seasonal influenza A (H1N1,H3N2) and influenza B virus.
The main purpose of this trial is to describe the product profile in terms of immunogenicity and safety following administration of trivalent influenza vaccine (split-virion, inactivated) produced at Shenzhen (SP Shz TIV). Primary objective: - To describe in each group the immune response induced by a single dose (subjects aged ≥ 3 years) or by two doses (subjects aged 6 to 35 months) of SP Shz-TIV. Secondary objective: - To describe in each group the safety profile of the vaccine after a single dose (subjects aged ≥ 3 years) or after each and any dose administered (subjects aged 6-35 months).
The study will evaluate the safety and immunogenicity of the 2014-2015 formulation of Fluzone Quadrivalent vaccine, administered in a 1- or 2-dose schedule, in accordance with the Advisory Committee on Immunization Practices (ACIP) recommendations, in children 6 months to < 9 years of age. Objective: - To describe the safety of the 2014-2015 formulation of Fluzone Quadrivalent vaccine, administered in a 1- or 2-dose schedule, in accordance with ACIP recommendations, in children 6 months to < 9 years of age. Observational objectives: - To describe the immunogenicity of the 2014-2015 formulation of Fluzone Quadrivalent vaccine, administered in a 1- or 2-dose schedule in accordance with ACIP recommendations, in children 6 months to < 9 years of age. - To submit available sera from each subject to Center for Biologics Evaluation and Research (CBER) for further analysis by the WHO, the Centers for Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA) to support formulation recommendations for subsequent influenza vaccines.
The purpose of this study is to investigate the immunogenicity and safety when GSK Biologicals' influenza vaccine Influsplit™ Tetra (Fluarix™ Tetra) is co-administered with Merck & Co. Inc.'s pneumococcal vaccine (Pneumovax™23/Pneumovax) in adults 50 years of age and older at risk for complications from influenza and pneumococcal infections.
Recent reviews have highlighted the unpredictability and complexity of immune interference when multivalent conjugate vaccines are co-administered with other pediatric vaccines. It has become evident that the likelihood of immune interference (in response to conjugated- or co-administered antigens) increases in proportional to the number of glyco-conjugates (valencies) and dosages of carrier proteins. There are many kinds of carrier proteins: tetanus toxoid (TT), diphtheria toxoid (DT), CRM197 (non-toxic variant of DT), OMP (complex outer-membrane protein mixture from Neisseria meningitidis) and non-typeable Hemophilus influenza-derived protein D. Among them, TT is a more potent inducer of T-helper immunity, but carrier-induced-epitopic suppression (dose-dependent carrier antibody and carrier B cell dominance) may occur with TT. In comparison, DT and CRM197 are weaker B-cell immunogens, but apparently trigger more T-regulatory mechanism. Recent pediatric studies of PCV13 co-administered with DTaP vaccines showed 6B GMT (geometric mean titer) to be somewhat reduced compared to the results with PCV13 alone. Similar to children, adults frequently visit outpatient clinics to get two or more kinds of vaccines at the same time: pneumococcal vaccine, influenza vaccine, Td (diphtheria and tetanus) vaccine, HPV (human papilloma virus) vaccine, meningococcal vaccine, zoster vaccine, etc. PCV13 has limited co-administration information for adjuvanted influenza vaccine. This study is designed to evaluate the immunogenicity and safety of PCV13 and MF59-adjuvanted influenza vaccine (Fluad) after concomitant administration in adults aged 60 years or older.
The purpose of this trial is to demonstrate the acceptable safety profile and the immunological non-inferiority of the FLU D-QIV vaccine manufactured with this investigational process (FLU D-QIV Investigational Process [IP]) compared to FLU D-QIV manufactured with the current licensed process (FLU D-QIV Licensed Process [LP]).
Background:<TAB> - Flu virus that causes disease in birds can sometimes spread to people. It can cause severe illness, even death. Vaccines are used to try to create resistance to such infections. Researchers want to test a new vaccination strategy, combining two different vaccine types, the H7 DNA Vaccine (DNA vaccine) and H7N9 Monovalent Inactivated Vaccine (MIV), to see if one of two combinations offer better protection against a certain type of bird flu in humans when compared to vaccination using two doses of MIV alone. Objectives: - To see if 2 vaccines for bird flu, are safe and tolerable for humans. - To study immune responses to these vaccines. Eligibility: - Healthy adults 18 60 years old. Design: - Participants will be screened through a separate protocol. - Participants will be randomly assigned to 1 of 3 groups. Each group will get a different combination of vaccines. - Participants will have about 8 clinic visits. Each visit takes 2 4 hours. Blood will be drawn at some visits. Urine samples may be collected. - Participants will receive vaccinations at 2 of the visits, 16 weeks apart. - The H7N9 MIV will be injected in the upper arm using a needle and syringe. The DNA vaccine will be injected in the upper arm using a device that delivers the vaccine through the skin by pressure instead of a needle. - Participants will be observed for at least 30 minutes after each vaccination. - Soon after each vaccination, participants will get 1 2 phone calls, come to clinic for evaluation, and complete a diary at home for 1 week. They will record their temperature and symptoms and look at the injection site daily. - Participants will have follow-up blood tests.
The immune system is the part of the body that protects against infection. The immune system often doesn't work as effectively as people get older. This research is being done to find out how the immune systems in older people who are over age 75 respond to influenza vaccine (flu shot). We also want to find out if chronic cytomegalovirus (CMV) infection, a common virus infection in older persons affects the immune response in people older than 75 years of age who receive a flu shot. The Flu Shot is a vaccine approved for the prevention of influenza ("Flu") infections and is recommended every year for all persons 50 years and older. People who are older than 75 years of age are considered healthy or frail may join. A total of 1025 persons will be participating in this study. In order to determine if you are qualified for the study, we would ask you to answer a few questions over the phone that will take approximately 5 minutes. If you qualify and agree to proceed, you will be asked to come to Johns Hopkins Bayview Medical Center or, if you are unable to come to Bayview, one of our staff can visit you at your home. During that visit we obtain consent, review your medical history, and measure your vital signs, walking speed and grip strength. We will also administer a few brief questionnaires and collect urine and blood samples. We will then give you the Influenza vaccine for free. 7 days post receiving your Influenza Vaccine we will collect a small blood sample for further immune system testing. also, you will be asked to complete a 12-question survey which will assess your symptoms over the past 7 days (post receiving the Influenza vaccine). Also 4 weeks post receiving your Influenza vaccine you will be asked to complete a third visit that will include follow up health questionnaires and an influenza symptoms assessment questionnaire and vital signs. A third blood draw will be collected (approximately 10 teaspoons) to measure immune responses to the influenza vaccine. In addition, you will receive your test result (CBC/w/Diff.) from visit #1. Throughout the influenza study season, we will call you once a week to ask about your general health and any Flu-like symptoms. These calls will be made throughout the Flu season which typically lasts through May. If you begin to have any influenza like symptoms at any time during the study, we ask that you call our office to report these symptoms so that we may perform vital signs, nasal swab to confirm influenza, and a fourth blood draw to look at the immune response and protection of influenza vaccine.
The purpose of this study is to evaluate the safety and immunogenicity of different formulations of GSK Biologicals' H7N9 influenza vaccine in subjects 18 to 60 years of age.