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Influenza, Human clinical trials

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NCT ID: NCT05501561 Completed - Influenza, Human Clinical Trials

Safety and Immunogenicity of Different Formulations of an MF59-Adjuvanted Influenza Vaccine in Older Adults ≥50 Years of Age

Start date: August 25, 2022
Phase: Phase 2
Study type: Interventional

This Phase 2, randomized, observer-blind, dose-confirmation Clinical study is evaluating different formulations of MF59-Adjuvanted Quadrivalent Subunit Inactivated Influenza Vaccine. Approximately 1000 subjects are to be randomized into 1 of 4 possible treatment groups with 250 participants per group. Every participant will receive an influenza vaccine injection on Day 1 and will be followed up for approximately 6 months following injection. The primary immunogenicity analysis is based on Day 29 serology data.

NCT ID: NCT05492786 Completed - Influenza Clinical Trials

High-risk Influenza Vaccine Alert

Start date: September 1, 2022
Phase: N/A
Study type: Interventional

The purpose of this study is to assess, prospectively, the effect on flu vaccination rates of salient alerts in the electronic health record that indicate a patient's high risk for flu and its complications. The investigators hypothesize that the salient alerts will lead to increased flu vaccination compared with a standard flu alert.

NCT ID: NCT05474755 Completed - Influenza Clinical Trials

To Assess the Efficacy of GP681 Tablet Versus Placebo in Patients With Acute Uncomplicated Influenza Virus Infection

Start date: July 28, 2022
Phase: Phase 3
Study type: Interventional

This study will evaluate the efficacy, safety, and population pharmacokinetics of a single, oral dose of GP681 compared with placebo in patients aged 12 to 65 years with acute uncomplicated influenza virus infection

NCT ID: NCT05471531 Completed - Clinical trials for Influenza and Pneumonia

Study on Combined Vaccination With Quadrivalent Influenza Vaccine and 23-valent Pneumococcal Polysaccharide Vaccine

Start date: November 13, 2021
Phase: Phase 4
Study type: Interventional

This study is an open-label,single center phase Ⅳ clinical trial of combined immunization with quadrivalent influenza vaccine and 23-valent pneumococcal polysaccharide vaccine.The purpose of this study is to evaluate the safety and immunogenicity of combined immunization with quadrivalent influenza vaccine and 23-valent pneumococcal polysaccharide vaccine in the elderly aged 60 years and above.

NCT ID: NCT05470582 Completed - Influenza, Human Clinical Trials

Trial of Tolerability, Safety and Immunogenicity of the Flu-M Vaccine in Children Between 6 Months and 9 Years Old

Start date: February 16, 2021
Phase: Phase 3
Study type: Interventional

Comparative trial of tolerability, reactogenicity, safety and immunogenicity of the Flu-M vaccine as compared to the Vaxigrip® vaccine in terms of prevention of influenza in children aged 6 months to 9 years (at the time of the first vaccination).

NCT ID: NCT05457894 Completed - Influenza, Human Clinical Trials

Trial of Tolerability, Reactogenicity, Safety and Immunogenicity of Flu-M [Inactivated Split Influenza Vaccine] in Pregnant Women

Start date: January 23, 2020
Phase: Phase 3
Study type: Interventional

Comparative study of tolerability, reactogenicity, safety and immunogenicity Flu-M [Inactivated Split Influenza Vaccine] vs. the Ultrix® vaccine for the prevention of influenza in pregnant women in the 2nd-3rd trimesters of pregnancy

NCT ID: NCT05446740 Completed - Influenza, Human Clinical Trials

A Study on the Safety, Reactogenicity and Immune Response of a Vaccine Against Influenza in Healthy Younger and Older Adults

Start date: August 9, 2022
Phase: Phase 1
Study type: Interventional

The purpose of this first-time-in-human (FTiH) study is to assess the safety, reactogenicity and immunogenicity of GlaxoSmithKline's (GSK) messenger RNA (mRNA)-based monovalent vaccine (GSK4382276A) candidate against influenza in healthy younger adults (YA) and older adults (OA).

NCT ID: NCT05431725 Completed - Seasonal Influenza Clinical Trials

Immunogenicity and Safety Study of Influenza Vaccine (Split Virion), Inactivated, Quadrivalent

Start date: July 18, 2022
Phase: Phase 3
Study type: Interventional

The purpose of this study is to evaluate the safety and immunogenicity of Influenza vaccine (Split virion), Inactivated, Quadrivalent developed by Sinovac Biotech Co., Ltd. (Sinovac-QIV) as compared to a licensed comparator in Chile and Philippines, Vaxigrip Tetra™ (Vaxigrip Tetra-QIV) in individuals aged 3 years and older.

NCT ID: NCT05422326 Completed - Clinical trials for Respiratory Tract Infections

A Study to Evaluate Safety and Immunogenicity of One or Two Booster Vaccinations With H5N6 Influenza Vaccine in Adults Primed With H5N1 Influenza Vaccine or Unprimed

Start date: July 18, 2022
Phase: Phase 2
Study type: Interventional

This is a Phase 2, randomized, multi-center study in approximately 300 adults who received 2 doses of aH5N1c or placebo in and completed the parent study V89_18 in the <65 years of age cohort. The study investigates whether two priming doses of MF59-adjuvanted H5N1 cell culture-derived vaccine (aH5N1c) followed by one or two booster vaccinations with a MF59-adjuvanted H5N6 cell culture derived vaccine (aH5N6c) 3 weeks apart elicit immune responses to the antigens used for priming (H5N1) and boosting (H5N6) after first and second heterologous booster vaccination. Eligible subjects, who received 2 doses of aH5N1c in the parent study V89_18 are randomized in a 1:1 ratio to receive either two aH5N6c vaccinations, 3 weeks apart (group 1) or an aH5N6c vaccination on Day 1 and saline placebo on Day 22 (group 2). Eligible subjects, who received placebo in the parent study will receive two aH5N6c vaccinations, 3 weeks apart (group 3). After the second vaccine administration, subjects are monitored for approximately 6 months for safety and antibody persistence. The total study duration will be approximately 7 months per subject.

NCT ID: NCT05415462 Completed - Seasonal Influenza Clinical Trials

A Study of mRNA-1010 Seasonal Influenza Vaccine in Adults

Start date: June 6, 2022
Phase: Phase 3
Study type: Interventional

The primary objectives of this study are to evaluate the humoral immunogenicity of mRNA-1010 relative to that of an active comparator against vaccine-matched influenza A and B strains at Day 29, and to evaluate the safety and reactogenicity of mRNA-1010.