(19)
(11) EP 4 815 955 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 24898761.2

(22) Date of filing: 27.11.2024
(51) International Patent Classification (IPC): 
A61K 31/519(2006.01)
A61P 35/00(2006.01)
(52) Cooperative Patent Classification (CPC):
A61P 35/00; A61K 31/519
(86) International application number:
PCT/US2024/057748
(87) International publication number:
WO 2025/117739 (05.06.2025 Gazette 2025/23)
(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: 27.11.2023 US 202363602976 P

(71) Applicant: Katmai Pharmaceuticals, Inc.
Corona Del Mar, CA 92625 (US)

(72) Inventors:
  • BRAIL, Leslie Harris
    San Diego, California 92121 (US)
  • DU, Edna
    San Diego, California 92121 (US)
  • VECCHIO, Daniela
    San Diego, California 92121 (US)

(74) Representative: Evans, Sophie Elizabeth et al
Kilburn & Strode LLP Lacon London 84 Theobalds Road
London WC1X 8NL
London WC1X 8NL (GB)

   


(54) COMPOSITIONS AND METHODS FOR TREATING CANCER