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(11)

EP 4 798 303 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24804643.5 (22) Date of filing: 23.10.2024

(51) International Patent Classification (IPC):  A61P 17/00(2006.01) C07K 16/28(2006.01) A61P 37/02(2006.01) (52) Cooperative Patent Classification (CPC): C07K 16/2875; C07K 2317/33; C07K 2317/732; C07K 2317/734; C07K 2317/76; C07K 2317/92; A61P 17/00; A61P 37/02 (86) International application number: PCT/US2024/052505 (87) International publication number: WO 2025/090570 (01.05.2025 Gazette 2025/18)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 23.10.2023 US 202363592351 P 03.05.2024 US 202463642002 P (71) Applicant: AbCellera Biologics Inc. Vancouver BC V5Y 1G6 (CA)

(72) Inventors: GOODMAN, Allison Vancouver, British Columbia V5Y 0A1 (CA) WILLIAMSON, Christopher Vancouver, British Columbia V5Y 0A1 (CA) MACDONALD, Madeline Vancouver, British Columbia V5Y 0A1 (CA) KUANG, Tallie Vancouver, British Columbia V5Y 0A1 (CA) YAMNIUK, Aaron Paul Vancouver, British Columbia V5Y 0A1 (CA) LAMEIGNERE, Emilie Vancouver, British Columbia V5Y 0A1 (CA) DUNCAN, Sherie Vancouver, British Columbia V5Y 0A1 (CA) BARNHART, Bryan Crawford Vancouver, British Columbia V5Y 0A1 (CA) AMASH, Alaa Vancouver, British Columbia V5Y 0A1 (CA) NIEMIETZ, Iwona Vancouver, British Columbia V5Y 0A1 (CA) (74) Representative: EIP  Fairfax House 15 Fulwood Place London WC1V 6HU London WC1V 6HU (GB)