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preS-containing recombinant hepatitis B vaccine (Pichia pastoris)
- Development stage
- Phase 1
- Lead developer
- Chengdu Institute of Biological Products
- Modality
- Vaccines & Immunotherapeutics, Recombinant Proteins and Enzymes
- Administration
- Intramuscular
01
Overview
A third-generation recombinant protein subunit vaccine developed by the Chengdu Institute of Biological Products for the prevention of hepatitis B virus (HBV) infection. The vaccine is produced using the *Pichia pastoris* yeast expression system and is distinguished by the inclusion of the preS1 and preS2 regions of the HBV surface protein, in addition to the standard S antigen. This design is intended to enhance the vaccine's immunogenicity, particularly in individuals who are non-responsive or hypo-responsive to conventional second-generation vaccines that contain only the S antigen. By providing a broader range of epitopes, the vaccine aims to elicit a more potent and protective immune response against HBV.
- Other names
- Recombinant Hepatitis B Vaccine (Pichia pastoris) containing preS
02
Targets
preS1 (HBV presurface protein 1)pre-S2 (Hepatitis B virus pre-S2 region)
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