Abstract: A bispecific bi- or trivalent antibody specifically binding to the two targets which are extracellular domain of human B cell maturation antigen (BCMA) and human CD3?, wherein the variable domains VL and VH in a light chain and the respective heavy chain are replaced by each other, characterized in comprising a constant domain CL wherein the amino acid at position 124 is substituted independently by lysine (K), arginine (R) or histidine (H) (numbering according to Kabat), and in the respective constant domain CH1 the amino acid at position 147 and the amino acid at position 213 is substituted independently by glutamic acid (E), or aspartic acid (D) (numbering according to EU index of Kabat). Also the manufacture and use of said antibody.
Type:
Grant
Filed:
August 3, 2015
Date of Patent:
April 9, 2019
Assignee:
ENGMAB AG
Inventors:
Minh Diem Vu, Klaus Strein, Oliver Ast, Marina Bacac, Lydia Jasmin Hanisch, Tanja Fauti, Anne Freimoser-Grundschober, Ralf Hosse, Christian Klein, Ekkehard Moessner, Samuel Moser, Ramona Murr, Pablo Umana, Sabine Jung-Imhof, Stefan Klostermann, Michael Molhoj, Joerg Regula, Wolfgang Schaefer
Abstract: A bispecific bi- or trivalent antibody specifically binding to the two targets which are extracellular domain of human B cell maturation antigen (BCMA) and human CD3epsilon, wherein the variable domains VL and VH in a light chain and the respective heavy chain are replaced by each other, characterized in comprising a constant domain CL wherein the amino acid at position 124 is substituted independently by lysine (K), arginine (R) or histidine (H) (numbering according to Kabat), and in the respective constant domain CH1 the amino acid at position 147 and the amino acid at position 213 is substituted independently by glutamic acid (E), r aspartic acid (D) (numbering according to Kabat). Also the manufacture and use of said antibody.
Type:
Application
Filed:
August 3, 2015
Publication date:
October 26, 2017
Applicant:
ENGMAB AG
Inventors:
Minh Diem VU, Klaus STREIN, Oliver AST, Marina BACAC, Lydia Jasmin HANISCH, Tanja FAUTI, Anne FREIMOSER-GRUNDSCHOBER, Ralf HOSSE, Christian KLEIN, Ekkehard MOESSNER, Samuel MOSER, Ramona MURR, Pablo UMANA, Sabine JUNG-IMHOF, Stefan KLOSTERMANN, Michael MOLHOJ, Joerg REGULA, Wolfgang SCHAEFER