USPTO Patent Grant: B-RAF Kinase Inhibitor Solid Dispersion
Summary
The USPTO has granted a patent to BeiGene, Ltd. for a stable solid dispersion of a B-RAF kinase dimer inhibitor, Compound 1. The patent covers the composition, methods of preparation, and uses of this solid dispersion, as well as a crystalline form of Compound 1.
What changed
The United States Patent and Trademark Office (USPTO) has issued patent US12582604B2 to BeiGene, Ltd. for a stable solid dispersion containing a specific B-RAF kinase dimer inhibitor (Compound 1) and a stabilizing polymer. The patent also covers methods for preparing this solid dispersion and its therapeutic uses, particularly for treating conditions related to B-RAF kinase activity. The filing date for this application was January 23, 2020, and the patent grant date is March 24, 2026.
This patent grant represents a new intellectual property asset for BeiGene, Ltd. in the area of oncology therapeutics. While not a regulatory rule imposing obligations on other entities, it signifies a novel composition and potential new treatment modality. Companies involved in B-RAF inhibitor research or development should be aware of this granted patent to ensure their activities do not infringe upon the claimed intellectual property. No immediate compliance actions are required for external parties, but it may influence future R&D strategies and licensing considerations.
Source document (simplified)
Stable solid dispersion of a B-RAF kinase dimer inhibitor, methods of preparation, and uses therefor
Grant US12582604B2 Kind: B2 Mar 24, 2026
Assignee
BeiGene, Ltd.
Inventors
Guoliang Zhang, Changyou Zhou, Huangbin Sun
Abstract
Disclosed herein is a physically stable solid dispersion comprising Compound 1, i.e., the B-RAF kinase dimer inhibitor 1-((1S, 1aS, 6bS)-5-((7-oxo-5, 6, 7, 8-tetrahydro-1, 8-naphthyridin-4-yl)oxy)-1a,6b-dihydro-1H-cyclopropa [b] benzofuran-1-yl)-3-(2, 4, 5-trifluorophenyl) urea and a specific stabilizing polymer, the method for preparing the same, and the uses of the solid dispersion. Also disclosed herein is the crystalline form of Compound 1.
CPC Classifications
A61K 9/146 A61K 31/4375 A61K 47/38 A61K 9/0095 A61K 9/20 A61K 9/48 A61K 9/14 A61K 31/4427 A61K 47/61 C07B 2200/13 C07D 471/04 C07D 405/14 A61P 35/00
Filing Date
2020-01-23
Application No.
17423600
Claims
4
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