(19)
(11) EP 4 815 925 A1

(12)

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

(21) Application number: 24817607.5

(22) Date of filing: 02.12.2024
(51) International Patent Classification (IPC): 
A61K 9/51(2006.01)
A61K 47/36(2006.01)
 A61K 47/02(2006.01)
C08F 8/42(2006.01)
(52) Cooperative Patent Classification (CPC):
A61K 9/5161; A61K 47/36; A61K 47/02; A61K 9/5192
(86) International application number:
PCT/EP2024/084365
(87) International publication number:
WO 2025/114612 (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: 01.12.2023 EP 23307119

(71) Applicants:
  • Institut National de la Santé et de la Recherche Médicale
    75013 Paris (FR)
  • Université Paris Cité
    75006 Paris (FR)
  • Univ Paris XIII Paris-Nord Villetaneuse
    93430 Villetaneuse (FR)
  • Assistance Publique - Hôpitaux de Paris
    75012 Paris (FR)

(72) Inventors:
  • CHAUVIERRE, Cédric
    75018 PARIS (FR)
  • SARFATI, Pierre
    75018 PARIS (FR)
  • LALATONNE, Yoann
    93017 BOBIGNY (FR)

(74) Representative: Plasseraud IP 
104 Rue de Richelieu CS92104
75080 Paris Cedex 02
75080 Paris Cedex 02 (FR)

   


(54) HYBRID PARTICLES COMPRISING A CROSS-LINKED POLYSACCHARIDE MATRIX AND METAL OXIDE NANOPARTICLES