Anti-cancer combination therapies comprising a CTLA-4 blocking agent and a PD-1 blocking agent are disclosed. In particular, combination therapies are disclosed wherein the CTLA-4 blocking agent is an effector-silent anti-CTLA-4 antibody or effector-silent anti-CTLA-4 antibody fragment and the PD-1 blocking agent is an anti-PD-1 or anti-PD-L1 antibody, or antibody fragment thereof.

The invention relates to combination therapy involving two or more antibodies, wherein the Fc regions of the two antibodies have been modified such that hetero-oligomerization between the antibodies is strongly favored over self-oligomerization when antibodies are bound to their corresponding target antigens and such that hetero-oligomerization-independent effector functions of one or both antibodies are eliminated or strongly reduced. The invention also relates to antibodies, compositions, and kits suitable for use in the combination therapy of the invention.

A multispecific antibody is provided. The antibody comprising a first moiety, which binds and activates CD40, a second moiety, which specifically binds a dendritic cell (DC) and a third moiety comprising a modified Fc region of the multispecific antibody for enhancing specificity and affinity of binding to FcγRIIb and uses of same.

Provided are anti-CD137 constructs that bind to CD137, including multispecific anti-CD137 antibodies with binding specificity for CD137 and one or more additional antigens, and methods of using the same. In certain embodiments, the one or more additional antigens comprise human epidermal growth factor receptor 2 (HER2).

The invention provides anti-cluster of differentiation 3 (CD3) antibodies and methods of using the same.

The present invention provides Fc variants and polypeptides, e.g., antibodies and Fc fusion proteins, comprising such Fc variants. In particular, Fc variants with diminished effector function as a consequence of hinge region and CH2 domain mutations, e.g., LALE-PG, are provided. Such variants maintain antigen-binding and favorable developability profiles and may display improved expressability.

The present invention relates to modified antibodies. In particular, the present invention relates to recombinant monoclonal antibodies having altered ability to induce direct cell death and effector function. In addition, the present invention relates to nucleic acid molecules encoding such antibodies, and vectors and host cells comprising such nucleic acid molecules. The invention further relates to methods for producing the antibodies of the invention, and to methods of using these antibodies in treatment of disease.

The present application relates to antibodies which bind specifically to chelated radionuclides, including bispecific antibodies. It further relates to the use of such bispecific antibodies in applications such as radioimmunoimaging and radioimmunotherapy. It additionally relates to clearing agents and compositions useful in such methods. The chelated radionuclides may be a DOTAM-lead (Pb) chelate.

This application discloses, inter alia, certain antibodies that specifically bind to human TREM2 (triggering receptor expressed on myeloid cells 2). In some embodiments, the antibodies act as TREM2 agonists. In some embodiments, antibodies herein specifically bind to the stalk region of intact, human TREM2, without binding to soluble TREM2, which is the product of TREM2 cleavage between residues H157 and S158. In some embodiments, the antibodies act as TREM2 agonists, specifically bind to the stalk region of TREM2 with dissociation constants ranging from 10 nM to as low as 100-500 pM, 10-50pM, or 1-10 pM, specifically bind to a TREM2 epitope spanning the H157-S158 cleavage site, and do not bind to soluble TREM2. In some embodiments, antibodies herein also inhibit shedding of soluble TREM2 in a human microglia cell model and in vivo in a mouse model, decrease levels of soluble TREM2 in plasma, CSF and/or the brain, enhance survival of human microglia cells, and increase Aβ plaque formation and compaction in a human microglia model (for example, as measured by increased Aβ plaque intensity and/or increased X04 plaque intensity in human microglia), and thus, may provide a number of neuroprotective activities.

This invention relates to anti-NKG2A antibodies and methods of using them in enhancing immunity in a patient in need thereof and in treating cancer.