COVID-19 Clinical Trial
Official title:
A Randomized, Open-Label, Parallel-controlled Clinical Study on Booster Immunization of Two COVID-19 Vaccines Constructed From Different Technical Routes Among People Aged 18 Years and Older
This is an open-label, randomized, parallel-controlled clinical trial conducted in people aged 18 years and older to evaluate the immunogenicity and safety of two SARS-CoV-2 bivalent vaccines constructed by adenovirus type 5-based or mRNA-based technics.
The clinical trial plans to recruit 450 subjects aged 18 years and above with an interval of ≥ 3 months between the previous dose of SARS-CoV-2 vaccine immunization and receive one dose of inhaled prototype strain and omicron BA.4/5 bivalent recombinant SARS-CoV-2 vaccine (adenovirus vector type 5) (Ad5-NCO5T-IH), beta strain and omicron BA.4/5 bivalent SARS-CoV-2 mRNA vaccine (mbO5) or inhaled prototype recombinant SARS-CoV-2 vaccine (adenovirus vector type 5) (Ad5-nCoV-IH) for follow-up until 6 months after vaccination. ;
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