(19)

(11)

EP 4 771 144 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24857554.0 (22) Date of filing: 28.08.2024

(51) International Patent Classification (IPC):  C12N 9/64(2006.01) A61P 7/02(2006.01) A61K 38/48(2006.01) (52) Cooperative Patent Classification (CPC): A61P 7/02; A61K 38/00; C12N 9/6432; C12Y 304/21006 (86) International application number: PCT/CA2024/051113 (87) International publication number: WO 2025/043340 (06.03.2025 Gazette 2025/10)

(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: 01.09.2023 US 202363580012 P (71) Applicant: Canadian Blood Services Ottawa, Ontario K1G 4J5 (CA)	(72) Inventor: PRYZDIAL, Ed Vancouver, British Columbia V6T 1Z3 (CA) (74) Representative: Marben S.r.l.  Via Larga, 16 20122 Milano 20122 Milano (IT)