Influenza Immunization Clinical Trial
Official title:
Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5407 in Adults Aged 18 Years and Older
The purpose of this study is to evaluate the safety and immunogenicity of a single intramuscular (IM) injection of up to 2 dose levels of Quadrivalent Influenza messenger ribonucleic acid (mRNA) Vaccine MRT5407 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.
Study duration is approximately 12 months. ;