Active clinical trials for "Influenza, Human"

The objectives of the study are to assess the immunogenicity and safety of the inactivated influenza vaccine (whole virion, Vero cell-derived) at Day 21 and Day 180 after vaccination.

The purpose of this study is to compare 2 licensed flu vaccines to each other and to placebo (inactive substance). The study will be conducted among healthy adult participants aged 18-49 years and is expected to last 3 years. During year 1, participants will be assigned to receive 1 of the 2 licensed flu vaccines or placebo, given as either nasal spray (live-attenuated vaccine or placebo) or injection (inactivated vaccine or placebo). Participants will receive the same assigned vaccine or placebo during year 2. During year 3, participants will be followed, but will not receive flu vaccine. Each year blood samples will be collected before and 1 month after each vaccination and at the end of each flu season in order to measure how the body responds to the vaccine and how well participants were protected from the flu. During the flu season, participants with flu-like illness will provide information on symptoms and provide a throat swab to test for virus identification.

The purpose of this study is to evaluate a new method of detecting the flu infection. This method may allow researchers to identify new proteins being made in response to an infection even before symptoms of the infection are present. The goal of this study is not to prevent the flu but to monitor the immune system response. The elderly and those with chronic health problems are at greater risk for complications (i.e., pneumonia, bronchitis [bacterial infection in the lungs], and sinusitis [bacterial infection in the sinuses]) from the flu. Early detection and diagnosis of the flu decreases the number of people with these complications. Participants will include healthy people between the ages of 21-40, between the ages of 60-89, or 90 years and older, who are living in the communities surrounding the 3 study sites in Virginia. There will be 5 study visits, and subjects will participate up to 1 month.

The purpose of this study is to compare a new higher-dose influenza virus vaccine to the standard dose vaccine in elderly adults who can walk. Current influenza vaccines protect elderly against viral influenza but not as well as desired. It is expected that the higher doses vaccine can be given with little reaction, but this needs to be tested. Up to 410 people ages 65 years and older will be recruited from the community and from existing volunteer populations. Participants will receive either the high or standard dose injected in the muscle, remain in the clinic for 20 minutes afterward, and maintain a daily memory aid for 7 days. The memory aid will be reviewed by telephone 8-12 days after the injection and return to the clinic or contacted by telephone 6 months after the injection.

The primary objective of the study is to evaluate the safe usability of the study drugs, i.e. 4Fluart ID 1 µg haemagglutinin (HA)/0.1 ml QIV and 4Fluart ID 2 µg haemagglutinin (HA)/0.1 ml QIV in terms of safety concerns emerged. The secondary objective of the study is to further assess safety in terms of safety parameters, as well as to assess the immunogenicity of 4Fluart ID 1 µg haemagglutinin (HA)/0.1 ml QIV and 4Fluart ID 2 µg haemagglutinin (HA)/0.1 ml QIV in terms of immunogenicity parameters.

The aim of the study was to describe the safety and immunogenicity of the 2017-2018 formulation of Fluzone Quadrivalent vaccine in children 6 months to < 9 years of age, and in adults 18 to < 65 years of age, and to describe the safety and immunogenicity of the 2017-2018 formulation of Fluzone High-Dose vaccine in adults ≥ 65 years of age.

This study assesses immunogenicity and safety of NBP607-QIV to Agrippal which are indicated for active immunization for the prevention of influenza disease. Total of 675 subjects or above (450 subjects for NBP607-QIV arm and 225 subjects for Agrippal arm) of 6 to 35 months of age are enrolled, and each subject is administered with single or two doses of vaccines depending on previous vaccination history.

The purpose of this study is to elucidate efficacy and safety of influenza vaccine in cancer patients receiving immune checkpoint inhibitor.

This is a Phase I double-blind, randomized, placebo-controlled study in 50 healthy adolescents and children, 9-17 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 a prime-boost regimen of H3N2 M2SR intranasal influenza vaccine (manufactured by FluGen) followed by licensed inactivated Quadrivalent Influenza Vaccine (QIV) boost administered intramuscularly Subjects will be enrolled in one of two groups in a 1:1 ratio. Arm 1 will receive one dose of M2SR intranasally on Day 1 and one dose of QIV on Day 92. Arm 2 will receive one dose of placebo (saline) intranasally on Day 1, and one dose of QIV on Day 92. Study duration will be approximately 28 months with patient participation duration approximately 13 months. The primary study objective is to assess the safety and reactogenicity of a monovalent live attenuated influenza H3N2 M2SR vaccine.

This prospective annual release study is designed to evaluate the safety of 2 new influenza virus vaccine strains to be included in FluMist Quadrivalent for the 2018-2019 influenza season.