Abstract: The present invention provides a novel bispecific anti-CD28 antibody format which is bivalent and comprises two CD28 binding sites, and at least one target binding site. The bispecific anti CD28 antibody of the invention is surprisingly advantageous due to its costimulatory activity which is strictly target cell restricted. The bispecific CD28 antibody of the invention is provided for use in the treatment of diseases either alone or in combination with a further bispecific antibody inducing a CD3/T cell receptor signal.

Abstract: The present invention provides a novel PSMA binding antibody termed 10B3 and pharmaceutical and diagnostic uses of the antibody 10B3. The PSMA antibody 10B3 does not cross-compete with the state of the art PMSA binding antibody J591 and has a reduced induction of antigen shift compared to J591 and a unique reactivity with squamous cell carcinoma (SCC) cells of different origin.

Abstract: The present invention provides a novel PSMA binding antibody termed 10B3 and pharmaceutical and diagnostic uses of the antibody 10B3. The PSMA antibody 10B3 does not cross-compete with the state of the art PMSA binding antibody J591 and has a reduced induction of antigen shift compared to J591 and a unique reactivity with squamous cell carcinoma (SCC) cells of different origin.

Abstract: The invention pertains to antibodies or other antigen binding proteins targeting the CD276 antigen, also known as B7-H3. The invention provides an improved set of antibodies which bind at new positions within the CD276 antigen and are of particular use as therapeutics in the treatment of CD276 positive cancer. Further the invention provides antibody conjugate and bispecific antibodies which were developed on basis of the novel anti-CD276 antibodies of the invention. Furthermore, the invention discloses the therapeutic use of the antibodies and other modulators in the treatment of CD276 positive cancer. Finally, the nucleic acid constructs encoding the molecules of the invention, recombinant cells expressing them, as well as particular uses and methods are provided.

Abstract: The present invention relates to a cytotoxic agent for the prophylaxis and/or treatment of a viral infection which is configured for the selective binding to a membrane receptor of virus-infected T lymphocytes, a pharmaceutical composition containing said cytotoxic agent, the use of the cytotoxic agent for the prophylaxis and/or treatment of viral infections, a method of finding cytotoxic agents, the use of a membrane receptor of virus-infected T lymphocytes which is overexpressed in comparison to non-infected T lymphocytes for the diagnosis of a viral infection.

Abstract: The present invention provides novel human fins related tyrosine kinase 3 (FLT3) antigen binding proteins, such as antibodies, having improved FLT3 binding affinity, and/or anti-tumor activity. The FLT3 antibodies of the invention were generated by mutation of a parent FLT3 antibody and tested in in vitro in binding assays as well as in vivo in a mouse tumor model and in human patient tumor samples. The antibodies of the invention are provided as monospecific constructs or in a bispecific FLT3×CD3 antibody format and show excellent target affinity and/or tumor cell killing. The present invention also relates methods for producing the antigen binding proteins of the invention as well as nucleic acids encoding them, vectors for and host cells for their expression. The invention further relates to methods of treating or diagnosing a disease such as leukemia using an FLT3 antigen binding protein (ABP) of the invention.

Abstract: The present invention relates to a cytotoxic agent for the prophylaxis and/or treatment of a viral infection which is configured for the selective binding to a membrane receptor of virus-infected T lymphocytes, a pharmaceutical composition containing said cytotoxic agent, the use of the cytotoxic agent for the prophylaxis and/or treatment of viral infections, a method of finding cytotoxic agents, the use of a membrane receptor of virus-infected T lymphocytes which is overexpressed in comparison to non-infected T lymphocytes for the diagnosis of a viral infection.

Abstract: The present invention provides a novel PSMA binding antibody termed 10B3 and pharmaceutical and diagnostic uses of the antibody 10B3. The PSMA antibody 10B3 does not cross-compete with the state of the art PMSA binding antibody J591 and has a reduced induction of antigen shift compared to J591 and a unique reactivity with squamous cell carcinoma (SCC) cells of different origin.

Abstract: The present disclosure relates to a recombinant antibody molecule, bispecific as well as tri-specific hetero-dimeric antibody molecules, as well as a method for producing the same, its use and a nucleic acid molecule encoding the recombinant antibody molecules. The disclosure in particular provides an antibody molecule that is capable of mediating target cell restricted activation of immune cells.

Abstract: The present invention relates to a method of treating a disease. The method comprises administering to a patient in need thereof a recombinant bispecific antibody molecule consisting of a Fab fragment comprising a first binding site for a first antigen, a single chain Fv fragment comprising a second binding site for a second antigen and an immunoglobulin IgG1 CH2 domain.

Abstract: The present invention relates to a blocking-reagent for use in reducing unspecific T cell activation in T cell engaging therapies. The present invention further relates to pharmaceutical kit of parts and an in vitro method for evaluating unspecific T cell activation.

Abstract: The present invention relates to a bispecific antibody molecule, as well as a method for producing the same, its use and a nucleic acid molecule encoding the bispecific antibody molecule. The invention in particular provides an antibody molecule that is capable of mediating target cell restricted activation of immune cells.

Abstract: A bispecific antibody format devoid of an active Fc moiety comprising a monovalent binding site for a death receptor and at least one binding site for a cell surface antigen expressed on B-cells, for use in the treatment or prevention of B cell mediated autoimmune diseases.

Abstract: The present invention relates to a bispecific antibody molecule, as well as a method for producing the same, its use and a nucleic acid molecule encoding the bispecific antibody molecule. The invention in particular provides an antibody molecule that is capable of mediating target cell restricted activation of immune cells.

Abstract: A bispecific antibody format devoid of an active Fc moiety comprising a monovalent binding site for a death receptor and at least one binding site for a cell surface antigen expressed on B-cells, for use in the treatment or prevention of B cell mediated autoimmune diseases.

Abstract: A multispecific reagent has at least one first binding site for a cell surface receptor which requires multimeric ligand binding to be stimulated. The reagent possesses a second binding site for a target antigen which is expressed on the same cell as the cell surface receptor.

Abstract: The present invention relates to a bispecific fusion protein, comprising (a) a first polypeptide which binds to collagen, and (b) a second polypeptide which binds to endothelial precursor cells. Also, pharmaceutical compositions are disclosed, comprising the fusion protein of the invention, as well as methods for using the fusion protein, in particular for treating or preventing lesions of vessels and tissues.

Abstract: A first bispecific antibody molecule comprises at least one binding site with a variable domain on a light chain (VL) and a variable domain for the T-cell receptor CD-28, linked thereto on a heavy chain (Vh). The antibody molecule further comprises at least one binding site with a variable domain on a heavy chain (VH) and a variable domain for a tumour antigen, linked thereto on a light chain (VL). The variable domains on the heavy chains for both specificities are connected to each other by means of a peptide linker. A second bispecific antibody molecule is bivalent for CD-28 and at least monovalent for the tumour antigen.

Abstract: A first bispecific antibody molecule comprises at least one binding site with a variable domain on a light chain (VL) and a variable domain for the T-cell receptor CD-28, linked thereto on a heavy chain (Vh). The antibody molecule further comprises at least one binding site with a variable domain on a heavy chain (VK) and a variable domain for a tumour antigen, linked thereto on a light chain (VL). The variable domains on the heavy chains for both specificities are connected to each other by means of a peptide linker. A second bispecific antibody molecule is bivalent for CD-28 and at least monovalent for the tumour antigen.

Abstract: A multispecific reagent has at least one first binding site for a cell surface receptor which requires multimeric ligand binding to be stimulated. The reagent possesses a second binding site for a target antigen which is expressed on the same cell as the cell surface receptor.