Patent ID: 11919964
Assignee: AMGEN INC.
Field: Biotechnology (Chemistry)
Classification: CPC C  A | IPC C

Claim 0:
1. A bispecific heterodimeric antibody comprising a first light chain (LC1) and a first heavy chain (HC1) from a first antibody that specifically binds to human CGRP receptor and a second light chain (LC2) and second heavy chain (HC2) from a second antibody that specifically binds to the amino-terminal extracellular domain of human PAC1 receptor, wherein LC2 comprises a light chain variable region (VL2) comprising a CDRL1, CDRL2, and CDRL3 and HC2 comprises a heavy chain variable region (VH2) comprising a CDRH1, CDRH2, and CDRH3, and wherein:
(a) CDRL1, CDRL2, and CDRL3 have the sequence of SEQ ID NOs: 1, 14 and 20, respectively, and CDRH1, CDRH2, and CDRH3 have the sequence of SEQ ID NOs: 55, 66 and 74, respectively;
(b) CDRL1, CDRL2, and CDRL3 have the sequence of SEQ ID NOs: 2, 15 and 21, respectively, and CDRH1, CDRH2, and CDRH3 have the sequence of SEQ ID NOs: 56, 67 and 75, respectively;
(c) CDRL1, CDRL2, and CDRL3 have the sequence of SEQ ID NOs: 3, 15 and 21, respectively, and CDRH1, CDRH2, and CDRH3 have the sequence of SEQ ID NOs: 56, 67 and 75, respectively; or
(d) CDRL1, CDRL2, and CDRL3 have the sequence of SEQ ID NOs: 4, 16 and 22, respectively, and CDRH1, CDRH2, and CDRH3 have the sequence of SEQ ID NOs: 57, 68 and 76, respectively.