The present invention pertains to a novel and advantageous dosage regimen for a humanized pegylated monovalent anti-CD28 Fab′ antibody fragment, called “FR104”. This dosage regimen consists of between 0.05 and 1.5 mg/kg body weight of FR104, at a dosing schedule of once per week, once every two weeks, once every three weeks, once every four weeks, once every five weeks or once every 6 weeks, once every 7 weeks, once every 8 weeks or once every more than 8 weeks.

The present invention provides antibodies that bind specifically to TrkB and methods of using the same. According to certain embodiments, the antibodies of the invention are agonist antibodies that are neuroprotective, as shown by their effect on enhancing the survival of retinal ganglion cells in vitro. As such, these agonist antibodies may be used to treat diseases or disorders of the eye, such as, but not limited to glaucoma. In addition, other neuronal diseases or disorders may benefit from treatment with these agonist antibodies, including any disease or disorder characterized in part by neuronal damage. In certain embodiments, the invention includes antibodies that bind TrkB and mediate cell signaling. The antibodies of the invention may be fully human, non-naturally occurring antibodies.

The present invention relates to improved pharmaceutical compositions and dosage unit forms of bispecific CD3×CD20 antibodies and to routes of administration.

The present invention relates to a multispecific antibody comprising at least one domain specifically binding to a tumor-associated immune checkpoint antigen with low affinity, and at least one domain specifically binding to a tumor-associated antigen (TAA), and pharmaceutical compositions and methods of use thereof. The present invention further relates to a nucleic acid encoding said multispecific antibody, a vector comprising said nucleic acid, a host cell comprising said nucleic acid or said vector, and method of producing said multispecific antibody

The disclosure provides a method of treating unresectable or metastatic melanoma in a human patient with a lymphocyte activation gene-3 (LAG-3) antagonist. In some aspects, the method includes a combination of the LAG-3 antagonist with a cytotoxic T-lymphocyte antigen-4 (CTLA-4) inhibitor. In some aspects, the method includes one or more additional therapeutic agents and/or anti-cancer therapies.

Aspects of the disclosure relate to transferrin receptor 1 (TfR1)-binding proteins. In some cases, humanized TfR1-binding proteins are described. Embodiments include methods for treating one or more conditions, for example cancer, using a humanized TfR1-binding protein. In some embodiments, the disclosed methods and compositions involve one or more antibodies that are capable of binding TfR1. Certain aspects relate to humanized antibodies and antibody-like molecules comprising one or more amino acid substitutions (e.g., backmutations). Additional aspects relate to combination treatments with TfR1-binding proteins and one or more additional therapeutics.

The invention provides a method for the treatment of EGFRvIII-positive cancer or glioblastoma, comprising administering to a subject in need thereof an initial dose of between about 15 μg/day to about 6000 μg/day of an anti-EGFRvIII agent. Diagnostic methods for assessing EGFRvIII expression are also provided.

A molecule capable of binding to human 4-1BB includes the amino acid sequences of HCDR1, HCDR2 and HCDR3 in the heavy chain variable region of the antibody provided by present invention are shown sequentially at positions 31-35, positions 50-64, and positions 98-106 in SEQ ID No.1 from the N-terminus. The amino acid sequences of LCDR1, LCDR2 and LHCDR3 in the light chain variable region are shown sequentially at positions 24-34, positions 50-56, and positions 89-97 in SEQ ID No.2 from the N-terminus. The antibodies provided by the present invention can bind to human and monkey 4-1BB, exhibit high affinity to human 4-1BB and effectively enhance T cell responses; they can be used to regulate the immune responses mediated by T cells and antibodies; as immune modulators, they have a wide range of therapeutic uses in diseases such as cancer, autoimmune diseases, inflammatory diseases, and infectious diseases, etc.

Provided herein are modified immunoglobulins comprising an amyloid reactive peptide joined to an antibody, as well as humanized antibodies that bind to human amyloid fibrils and antibody-peptide fusion proteins. Also provided herein are methods of treating amyloid-based diseases by administering a modified immunoglobulin, humanized antibody, or antibody-peptide fusion protein.

The disclosure provides antigen binding domains that bind cluster of differentiation 3 (CD3) protein, comprising the antigen binding domains that bind CD3ε, polynucleotides encoding them, vectors, host cells, methods of making and using them.