This study was designed in two steps with Step 1, a single-center, double-blind, randomized clinical Pilot study and Step 2, a multi-center, single-blind, randomized clinical Pivotal study. The investigator evaluate the immunogenicity and safety of the investigational vaccine in the subjects during their participation in the study.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Percentage of subjects achieving post-vaccination Hemagglutination Inhibition(HI) antibody titer ≥ 1:40 in each dose group
Timeframe: 42 days after vaccination
Number of subjects with Solicited / Unsolicited adverse events
Timeframe: With in 24 weeks after vaccination