摘要:
Provided herein are monovalent antigen-binding constructs targeting EGFR and/or HER2. The monovalent antigen-binding constructs can include at least one antigen-binding polypeptide comprising a heavy chain variable domain, wherein the antigen-bind polypeptide specifically binds EGFR and/or HER2; and a heterodimeric Fc domain, the Fc domain comprising at least two CH3 domains, wherein the Fc domain is coupled, with or without a linker, to the antigen-binding polypeptide. Also provided are methods of making the constructs and methods of using the constructs.
摘要:
Provided herein are methods of use and treatment using a first or a first and second monovalent antigen-binding constructs targeting HER2. The monovalent antigen- binding constructs can include at least one antigen-binding polypeptide comprising a heavy chain variable domain, wherein the antigen-bind polypeptide specifically binds HER2; and a heterodimeric Fc, the Fc comprising at least two CH3 sequences, wherein the Fc is coupled, with or without a linker, to the antigen-binding polypeptide.
摘要:
Described herein methods of using antigen-binding constructs to treat HER2+ tumors in a subject such as breast, lung, or head and neck tumors. In some aspects, the tumor volume in the subject after receiving at least seven doses of the antigen binding construct is less than the tumor volume of a control subject receiving an equivalent amount of trastuzumab. In some aspects, the survival of the subject receiving the antigen binding construct is increased as compared to a control subject receiving an equivalent amount of a non-specific control antibody or as compared to a control subject not receiving treatment.
摘要:
Provided herein are biparatopic antigen-binding constructs that specifically bind HER2. The biparatopic antigen-binding constructs comprise one antigen-binding moiety that binds to ECD2 of HER2, a second antigen-binding moiety that binds to ECD4 of HER2, and an Fc. At least one of the antigen-binding moieties is an scFv. The biparatopic antigen-binding constructs can be used in the treatment of cancer.