YS Biopharma's PIKA Recombinant COVID-19 Vaccine Demonstrates Superior Antibody Neutralization Responses Compared to Inactivated COVID-19 Vaccine in Phase II Head-to-Head Clinical Study

GAITHERSBURG, Md., March 27, 2023 /PRNewswire/ -- YS Biopharma (Nasdaq: YS), a global biopharmaceutical company dedicated to discovering, developing, manufacturing and commercializing new generations of vaccines and therapeutic biologics for infectious diseases and cancer, announced its positive interim Phase II safety and immunogenicity data for its PIKA recombinant COVID-19 Vaccine.  The interim data was from Phase II part of the Phase II/III head-to-head clinical study to evaluate PIKA recombinant COVID-19 vaccine vs. inactivated COVID-19 vaccine.  The interim data analysis of Phase II study presented that the trial met both primary and secondary endpoints, measured by geometric mean titers (GMTs) of neutralizing antibody against Omicron virus and by seroconversion rates on Day 7 and Day 14 post a booster dose administration.

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