[EN] ENGINEERED HEPATITIS B VIRUS NEUTRALIZING ANTIBODIES AND USES THEREOF<br/>[FR] ANTICORPS NEUTRALISANTS MODIFIÉS CONTRE LE VIRUS DE L'HÉPATITE B ET UTILISATIONS ASSOCIÉES
申请人:VIR BIOTECHNOLOGY INC
公开号:WO2021262840A1
公开(公告)日:2021-12-30
The present disclosure relates, in part, to antibodies, and antigen-binding fragments thereof, that can bind to the antigenic loop region of hepatitis B surface antigen (HBsAg) and,optionally, can neutralize infection hepatitis B virus (HBV), and further optionally, of hepatitis delta virus (HDV). Presently disclosed antibodies and antigen-binding fragments have advantageous production characteristics, such as reduced formation of aggregates and/or improved production titer in transformed host cells, as compared to a reference antibody or antigen-binding fragment. The present disclosure also relates to to fusion proteins that comprise an antigen-binding fragment, and to nucleic acids that encode and cells that produce such antibodies, antigen-binding fragments, and fusion proteins. In addition, the present disclosure relates to the use of the antibodies, antigen-binding fragments, fusion proteins, and related polynucleotides, vectors, host cells, and compositions of the present disclosure in the diagnosis, prophylaxis and treatment of hepatitis B and hepatitis D. Also provided are combination therapies comprising (i) an antibody or antigen-binding fragment and (ii) an agent that is an inhibitor of HBV gene expression and/or that reduces HBV antigenic load.