Mature Virus-Like Particles of Flaviviruses Vaccine
Summary
The EPO published patent application EP3976768A1, filed by Chiang Mai University and NSTDA, covering mature virus-like particles (VLPs) of flaviviruses for use as vaccines. The invention relates to the production of immunogenic VLP compositions and methods for preventing flavivirus infections. The patent designates 33 European states including major markets such as DE, FR, GB, IT, and ES.
What changed
The EPO published patent application EP3976768A1 titled 'Mature Virus-Like Particles of Flaviviruses' filed by Chiang Mai University and the National Science and Technology Development Agency (NSTDA). The patent covers immunogenic VLP compositions derived from flaviviruses and methods for their use as vaccines, with IPC classifications spanning A61K 39/12 (medicinal preparations containing antigens), C07K 14/18 (viral proteins), and related C12N classifications. The application was published April 8, 2026 and designates 33 European Contracting States.
For vaccine developers and pharmaceutical manufacturers, this publication establishes a patent barrier in key European markets for VLP-based flavivirus vaccine technologies. Parties developing competing flavivirus VLP vaccines for the European market should review freedom-to-operate positions and consider potential licensing discussions with the applicants.
Archived snapshot
Apr 19, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
MATURE VIRUS-LIKE PARTICLES OF FLAVIVIRUSES
Publication EP3976768A1 Kind: A1 Apr 08, 2026
Applicants
Chiang Mai University, National Science and Technology
Development Agency (NSTDA)
Inventors
SITTISOMBUT, Nopporn, SAE-LIM, Malinee, CHAROENSRI, Nicha, KEELAPANG, Poonsook
IPC Classifications
C12N 7/00 20060101AFI20201205BHEP C12N 15/40 20060101ALI20201205BHEP C07K 14/18 20060101ALI20201205BHEP A61K 39/12 20060101ALI20201205BHEP
Designated 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, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Named provisions
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Source
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