(19)

(11)

EP 4 739 709 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24742660.4 (22) Date of filing: 05.07.2024

(51) International Patent Classification (IPC):  C07K 16/28(2006.01) A61K 39/00(2006.01) C07K 16/46(2006.01) A61P 35/00(2006.01) (52) Cooperative Patent Classification (CPC): C07K 16/2875; C07K 16/2878; C07K 16/2827; C07K 16/2818; C07K 2317/31; C07K 2317/24; C07K 2317/92; C07K 2317/75; C07K 2317/76; C07K 16/468; A61K 2039/505; A61P 35/00 (86) International application number: PCT/GB2024/051762 (87) International publication number: WO 2025/012620 (16.01.2025 Gazette 2025/03)

(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: 07.07.2023 EP 23184306 (71) Applicant: Mestag Therapeutics Ltd Saffron Walden Essex CB10 1XL (GB)	(72) Inventors: JUPP, Ray Saffron Walden, CB10 1XL (GB) LEGG, James Saffron Walden, CB10 1XL (GB) (74) Representative: Sagittarius IP  Marlow International Parkway Marlow SL7 1YL Marlow SL7 1YL (GB)