Patents Assigned to REGENERON PHARMACUEUTICALS, INC.
  • High affinity antibodies to human IL-6 receptor
    Patent number: 9884916
    Abstract: A human antibody or an antigen-binding fragment which binds human IL-6 receptor (hIL-6R) with a KD of about 500 pM or less and blocks IL-6 activity with an IC50 of 200 pM or less, is provided. In preferred embodiments, the antibody the antibody or antigen-binding fragment binds hIL-6R with an affinity at least 2-fold higher relative to its binding monkey IL-6R.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: February 6, 2018
    Assignee: REGENERON PHARMACUEUTICALS, INC.
    Inventors: Sean Stevens, Tammy T. Huang, Joel H. Martin, Jeanette L. Fairhurst, Ashique Rafique, Eric Smith, Kevin J. Pobursky, Nicholas J. Papadopoulos, James P. Fandl, Gang Chen, Margaret Karow