Abstract: The application pertains to a trispecific antibody molecule which may comprise a diabody-unit integrated into a polypeptide chain having at least six variable domains linked one after another. In certain instances two single-chain Fv (scFv) fragments are distally connected to the diabody-unit providing two further antigen binding sites (FIGS. 1 and 2).

Abstract: The invention relates to an anti-CD16A antigen binding protein for use in NK cell-based immunotherapy, wherein the anti-CD16A antigen binding protein is to be administered intermittently and in combination with a cytokine. In certain embodiments the antigen binding protein is a tetravalent and bispecific CD30/CD16A tandem diabody.

Abstract: Described are tetravalent, bispecific EGFR/CD16A antigen-binding proteins for engaging NK-cells towards EGFR-positive cells. EGFR/CD16A antigen-binding proteins with different pharmacokinetic (PK) properties are described. Further described is the use of bispecific EGFR/CD16A antigen-binding proteins for the treatment of an EGFR-positive malignancy, such as EGFR-positive tumors.

Abstract: The invention relates to a multispecific antigen-binding molecule specifically binding to CD16A and consisting of two polypeptide chains, wherein each polypeptide chain comprises at least four variable domains from the N-terminus to the C-terminus in the order: VH_BCMA-VL_CD16A-VH_CD16A-VL_BCM.

Abstract: Described is a combination therapy of (i) a multifunctional antibody having specificity for CD30 and CD16A and (ii) an anti-PD-1 antibody for the treatment of a tumor, in particular Hodgkin lymphoma.

Abstract: The invention relates to multispecific antigen-binding proteins for engaging natural killer (NK) cells for triggering NK cell cytotoxicity by engaging the CD16A (Fc?RIIIA)expressed on NK cells, wherein the antigen-binding protein comprises at least two CD16A antigen-binding moieties and at least a further target antigen-binding moiety. The CD16A antigen-binding moiety comprises light chain and heavy chain variable regions linked one after another in a polypeptide chain and the variable region at the N-terminus of the polypeptide chain comprising the CD16A antigen-binding moiety is a light chain variable region.

Abstract: The invention relates to multispecific antigen-binding proteins for engaging natural killer (NK) cells for triggering NK cell cytotoxicity by engaging the CD16A (Fc?RIIIA) expressed on NK cells, wherein the antigen-binding protein comprises at least two CD16A antigen-binding moieties and at least a further target antigen-binding moiety. The CD16A antigen-binding moiety comprises light chain and heavy chain variable regions linked one after another in a polypeptide chain and the variable region at the N-terminus of the polypeptide chain comprising the CD16A antigen-binding moiety is a light chain variable region.

Abstract: The invention relates to multispecific antigen-binding proteins for engaging natural killer (NK) cells for triggering NK cell cytotoxicity by engaging the CD16A (Fc?RIIIA)expressed on NK cells, wherein the antigen-binding protein comprises at least two CD16A antigen-binding moieties and at least a further target antigen-binding moiety. The CD16A antigen-binding moiety comprises light chain and heavy chain variable regions linked one after another in a polypeptide chain and the variable region at the N-terminus of the polypeptide chain comprising the CD16A antigen-binding moiety is a light chain variable region.

Abstract: The present invention relates to binding molecules that specifically bind to the human Fc gamma receptor expressed on the surface of natural killer (NK) cells and macrophages (i.e. Fc?RIIIA), and in particular binding molecules that specifically bind the A form Fc?RIII but do not bind to the B form of Fc?RIII, as well as to the use of such binding molecules in the diagnosis and treatment of disease. The invention further extends to polynucleotides encoding such binding molecules, host cells comprising such polynucleotides and methods of producing binding molecules of the invention using such host cells.

Abstract: Described are mono- and multivalent scFv-antibodies comprising the binding sites specific for the human T cell marker CD3. These antibodies are strongly immunosuppressive and do not cause a significant release of cytokines. Furthermore, polynucleotides encoding said antibodies are described as well as vectors comprising said polynucleotides, host cells transformed therewith and their use in the production of said antibodies. Pharmaceutical compositions containing any of the above mentioned polynucleotides, antibodies or vectors are useful for immunotherapy, preferably against acute transplant rejections.

Abstract: The present invention relates to binding molecules that specifically bind to the human Fc gamma receptor expressed on the surface of natural killer (NK) cells and macrophages (i.e. Fc?RIIIA), and in particular binding molecules that specifically bind the A form Fc?RIII but do not bind to the B form of Fc?RIII, as well as to the use of such binding molecules in the diagnosis and treatment of disease. The invention further extends to polynucleotides encoding such binding molecules, host cells comprising such polynucleotides and methods of producing binding molecules of the invention using such host cells.