The present invention relates to humanized or chimeric antibodies binding CD3. It furthermore relates to bispecific antibodies, compositions, pharmaceutical compositions, use of said antibodies in the treatment of a disease, and method of treatment.

Described herein are, proteins comprising amino acid substitutions in at least one of a first and a second polypeptide chain. Furthermore, is described the uses and methods related to said proteins.

Fixed dose HER2 antibody formulations for subcutaneous administration are provided along with their use in the treatment of cancer. The formulations include fixed dose subcutaneous formulations of pertuzumab and subcutaneous co-formulations of pertuzumab and trastuzumab, and their use in the treatment of cancer.

Described are novel nicotine-binding antibodies and methods of using them for treating nicotine addiction and/or facilitating smoking cessation, or for treating nicotine overdose or nicotine poisoning.

The present invention relates to an anti-MUC1 antibody binding specifically to Mucin 1 (MUC1) or an antigen-binding fragment thereof, an antibody-drug conjugate or bispecific antibody comprising the antibody, a pharmaceutical composition for prevention or treatment of cancer, comprising the same antibody, conjugate or bispecific antibody, and a nucleic acid encoding the same antibody, a vector and a host cell, both carrying the same nucleic acid, and a method for preparing an anti-MUC1 antibody or an antigen-binding fragment thereof, using the same vector and host cell. According to the present invention, the antibody shows outstanding affinity and binding force to MUC1 and the antibody-drug conjugate can bind specifically to a MUC1-expressing cell to specifically or selectively transfer the drug with efficacy. Therefore, the anti-MUC1 antibody and the antibody-drug conjugate according to the present invention can be usefully applied to the treatment of a MUC1-related disease, for example, cancer.

The present disclosure provides combination therapies with an anti-T cell antigen-binding molecule and a cytokine inhibitor. Antibodies that recruit T cells as effector cells into tumor tissues are called T cell redirecting antibodies, and are known as means for treating tumors. On the other hand, when systemic cytokine production is stimulated by binding of antibodies to T cells, it is feared that this systemic action will lead to aberrations such as CRS. The present disclosure provides means for alleviating systemic cytokine production, and will enable safer use of anti-T cell antigen-binding molecules in tumor treatment.

The present disclosure provides biparatopic antibodies comprising polypeptides that bind to folate receptor alpha (FRα) compositions comprising such biparatopic antibodies. In a specific aspect, the biparatopic antibodies bind to FRα and modulate FRα activity. The present disclosure also provides methods for treating disorders, such as cancer, by administering a biparatopic antibody that specifically binds to FRα and modulates FRα activity.

Provided are bispecific antibodies against PD-L1 and LAG-3, the nucleic acid molecules encoding the antibodies, expression vectors and host cells used for the expression of the antibodies. Provided are the methods for validating the function of antibodies in vivo and in vitro. The antibody is a potent agent for the treatment of cancers via modulating immune functions.

Disclosed is a LAG-3 binding protein, comprising a light chain variable region and/or a heavy chain variable region. The light chain variable region comprises a CDR1 having an amino acid sequence as shown in SEQ ID NO: 5, a CDR2 having an amino acid sequence as shown in SEQ ID NO: 6, and/or a CDR3 having an amino acid sequence as shown in SEQ ID NO: 7. The heavy chain variable region comprises a CDR1 having an amino acid sequence as shown in SEQ ID NO: 8, a CDR2 having an amino acid sequence as shown in SEQ ID NO: 9, and/or a CDR3 having an amino acid sequence as shown in SEQ ID NO: 10. Also disclosed are a bispecific antibody targeting LAG-3 and use thereof. The LAG-3 binding protein and bispecific antibody above can effectively block the binding of LAG-3 to MHC II and activate T cells.

The invention relates to human antibodies binding to and neutralizing Influenza (flu) virus and their uses.