The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 21, 2021

Filed:

Feb. 22, 2018
Applicants:

University of Saskatchewan, Saskatoon, CA;

The Governing Council of the University of Toronto, Toronto, CA;

Inventors:

Sachdev Sidhu, Toronto, CA;

Shane Miersch, Toronto, CA;

Clarence Ronald Geyer, Saskatoon, CA;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07K 16/28 (2006.01); A61K 47/68 (2017.01); A61K 49/00 (2006.01); G01N 33/68 (2006.01);
U.S. Cl.
CPC ...
C07K 16/2863 (2013.01); A61K 47/6849 (2017.08); A61K 49/0032 (2013.01); A61K 49/0058 (2013.01); G01N 33/6872 (2013.01); C07K 2317/21 (2013.01); C07K 2317/55 (2013.01); C07K 2317/565 (2013.01); C07K 2317/76 (2013.01); G01N 2333/71 (2013.01);
Abstract

An Epidermal Growth Factor Receptor (EGFR, HER1, ErbB1)-binding agent has a heavy chain and a light chain, wherein the dimerization loop from EGFR's Domain II is grafted within complementarity determining region 3 (CDR3) of the heavy chain, and the binding agent is affinity matured. The graft directs the binding agent to bind EGFR at its dimerization region, to thereby inhibit EGFR dimerization and activation. In another embodiment, an EGFR-binding agent is panned out of Library F, a Fab library. The binding agents are for detecting and/or quantifying EGFR expression, for targeting EGFR-expressing cells, and for decreasing levels of EGFR in EGFR-expressing cells.


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