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Study to Assess the Immune Response and the Safety Profile of a High-Dose Quadrivalent Influenza Vaccine (QIV-HD) Compared to a Standard-Dose Quadrivalent Influenza Vaccine (QIV-SD) in Japanese Adults 60 Years of Age and Older

Sanofi Pasteur, a Sanofi Company · 2020
ClinicalTrials.gov · Datasets · License: Public Domain · 2020
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healthy-volunteers
Primary Objective: To demonstrate that QIV-HD induced an immune response (as assessed by hemagglutination inhibition \[HAI\] geometric mean titers \[GMTs\] and seroconversion rates) that was superior to responses induced by QIV-SD for the 4 virus strains at 28 days post-vaccination in all participants. Secondary Objective: * To describe the immune response induced by QIV-HD and QIV-SD by HAI measurement method in all participants. * To describe the safety profile of all participants in each study group.
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