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EP 4 815 937 A1

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(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24898710.9 (22) Date of filing: 27.11.2024

(51) International Patent Classification (IPC):  A61K 31/395(2006.01) A61K 31/415(2006.01) A61K 31/33(2006.01) A61K 31/18(2006.01) A61K 31/425(2006.01) (52) Cooperative Patent Classification (CPC): C09K 8/035 (86) International application number: PCT/US2024/057645 (87) International publication number: WO 2025/117661 (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: 28.11.2023 US 202363603357 P 19.01.2024 US 202463622812 P (71) Applicant: Quantx Biosciences US, Inc. Princeton, NJ 08540 (US)

(72) Inventors: HUANG, Xianhai Warren, New Jersey 07059 (US) TANG, Haifeng Metuchen, New Jersey 08840 (US) SIMON, Adam Northridge, California 91324 (US) YANG, Dexi Livingston, New Jersey 07039 (US) SUN, Yaxiong Thousand Oaks, California 91320 (US) ROYTMAN, Vladislav Brooklyn, NY 11209 (US) DUAN, Jingwu Yardley, Pennsylvania 19067 (US) (74) Representative: Maiwald GmbH  Elisenhof Elisenstraße 3 80335 München 80335 München (DE)