mRNA vaccine-Sinocelltech Ltd.-COVID-19

mRNA vaccine-Sinocelltech Ltd.-COVID-19 is a designation that appears to incorrectly attribute mRNA vaccine technology to Sinocelltech Ltd. (Sinocelltech Group). According to clinical trial data and company pipeline information, Sinocelltech's COVID-19 vaccine candidates, such as SCTV01C and SCTV01E, are recombinant trimeric spike protein subunit vaccines rather than mRNA-based vaccines. SCTV01C is a bivalent vaccine targeting Alpha and Beta variants, while SCTV01E is a tetravalent vaccine targeting Alpha, Beta, Delta, and Omicron variants. In Sinocelltech-sponsored trials, mRNA vaccines (e.g., those from Pfizer or Moderna) are used as active control comparators to evaluate the efficacy and safety of their protein-based candidates. There is no evidence of a proprietary mRNA vaccine developed by Sinocelltech.