View clinical trials related to Influenza, Human.
Filter by:The goal of this observational study is to understand immune responses to viral airway infection in adults, including the elderly. The main question(s) to answer is/are: Why do some individuals acquire only asymptomatic or mild Influenza A virus (IAV) infection while others become severely ill and even succumb to the same disease? Participants will be asked to donate samples when seeking health care for influenza-like symptoms or if hospitalized for IAV or SARS-CoV-2. Samples asked for are: - Blood sample by venepuncture - Blood sample by capillary sampling - Nasopharyngeal aspirate - Nasopharyngeal swab - Endotracheal tube aspirate - Nasal swab - Nasal curette - Breath Explor (sampling of expired air) Researchers will compare obtained results with the same type of samples from healthy controls.
To establish the relative accuracy of the LIAISON® NES Flu A/B, RSV & COVID-19 assay for viral nucleic acid targets from professionally collected or patient self-collected dry nasal (NS) swabs and to establish the relative accuracy of the LIAISON PLEX® RSP Flex assay from NS and nasopharyngeal swabs (NPS) in applicable transport media from human patients exhibiting clinical signs and symptoms of a respiratory tract infection.
The goal of this clinical study is to prove the no less immunogenicity of the Grippol Quadrivalent vaccine compared to the Grippol plus vaccine in children aged 6 months to 5 years (inclusive) for three identical strains of the compared vaccines in terms of the "proportion of vaccinated with seroconversion in paired sera of the hemagglutination inhibition reaction obtained before and after vaccination".
The aim of this study is to evaluate the safety, reactogenicity and immunogenicity of the Flu Pandemic messenger RNA (mRNA) vaccine (including dose-finding and dose-confirmation) administered healthy adults 18 to 85 years of age.
The purpose of this study is to evaluate the safety and immunogenicity of a single intramuscular (IM) injection of different formulations of Quadrivalent Influenza Vaccine (QIV) messenger ribonucleic acid (mRNA) (MRT5421, MRT5424, and MRT5429) compared to an active control (QIV- standard dose (SD), QIV- high dose (HD) [adults ≥ 65 years of age only], or quadrivalent recombinant influenza vaccine (RIV4)) in adults 18 years of age and older.
The purpose of the current study is to assess the effectiveness of protein-based COVID-19 or influenza vaccines when given individually or together via oral/ sublingual mucosal route instead of intramuscular delivery. The comparator will be a seasonal influenza vaccine which will also be administered with Advax-CpG adjuvant via the oral route. This study will use a cross-over design and everyone in the study will over a space of about 4 months receive both the COVID-19 and influenza vaccines.
The goal of this Phase II/III study is to investigate the safty and efficacy of ADC189 tablets in adolescents and adults with influenza A virus infection/influenza B virus infection. The main aim to answer: - Phase II study is to evaluate the efficacy of ADC189 tablets in the treatment of adult influenza subjects and determine the optimal therapeutic dose by analyzing the time of virus titer turning to negative. All the results will be used to design the Phase III study. - Phase III study is to evaluate the efficacy of ADC189 tablets by analyzing the duration of remission of all influenza symptoms in adolescents and adults subjects with influenza. Participants will be taken ADC189 teblets/Placebo once, and be observed by 22 days. Phase II study has 3 groups: 15 mg ADC189; 45 mg ADC189; and Placebo; Phase III study has 2 groups: 45 mg ADC189; and Placebo.
To evaluate the safety of administering 1 or 2 doses of the quadrivalent influenza virus split vaccine (MDCK cells) (0.5ml/dose) in individuals aged 6 months and above.
The goal of this randomized, double-blind, placebo-controlled clinical trial is to investigate the immunological effects of influenza vaccination outside of the influenza season on arterial inflammation in patients with a recent acute myocardial infarction (AMI). The primary objective is to compare the effects of influenza vaccination to those of a placebo in reducing post-myocardial infarction coronary inflammation as measured by coronary computed tomography angiography (CCTA). The main questions it aims to answer are: Does influenza vaccination reduce arterial inflammation as measured by CCTA at week 8 after percutaneous coronary intervention (PCI) in comparison to baseline? Does influenza vaccination modulate systemic inflammation as measured by blood biomarkers and in-vitro challenge tests at week 8 after PCI in comparison to baseline? Researchers will compare the effects of influenza vaccination with those of a placebo.
The study is planned to evaluate the therapeutic efficacy and safety of Ingavirin®, capsules, 60 mg, in the treatment of influenza or other acute respiratory infections in children from 13 to 17 years compared with placebo.