Beigene PI3KDelta Inhibitor Salts and Crystalline Forms Patent Application EP4347598A1
Summary
Beigene Switzerland GmbH has obtained publication of European Patent Application EP4347598A1 covering salts of a PI3KDelta inhibitor, crystalline forms, and methods of preparation. The application was published April 15, 2026 under IPC classification C07D 487/04, with designated states spanning all 44 EPC contracting states including 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, and TR. The therapeutic applications disclosed include anticancer (A61P 35/00), anti-inflammatory (A61P 29/00), and immunological disorder treatments (A61P 37/00).
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GovPing monitors EPO Patent Bulletin - Organic Chemistry (C07D) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 43 changes logged to date.
What changed
The European Patent Office has published patent application EP4347598A1 for Beigene Switzerland GmbH, covering novel salts and crystalline forms of a PI3KDelta inhibitor, methods of preparation, and therapeutic uses thereof. The A1 publication indicates inclusion of the European search report. The application claims priority from inventors YU Xiaosong, CAI Xiaopeng, WANG Zhiwei, and LI Jing.
For pharmaceutical companies developing PI3K inhibitors or related oncology/immunology compounds, this publication establishes prior art as of April 2026. Competitors should review the disclosed compound structures, salt forms, and crystalline polymorphs to assess freedom-to-operate implications. Generic or biosimilar developers may need to design around this patent family or monitor its prosecution toward grant.
Archived snapshot
Apr 25, 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.
SALTS OF A PI3KDELTA INHIBITOR, CRYSTALLINE FORMS, METHODS OF PREPARATION, AND USES THEREFORE
Publication EP4347598A1 Kind: A1 Apr 15, 2026
Applicants
Beigene Switzerland GmbH
Inventors
YU, Xiaosong, CAI, Xiaopeng, WANG, Zhiwei, LI, Jing
IPC Classifications
C07D 487/04 20060101AFI20250626BHEP A61P 35/00 20060101ALI20250626BHEP A61P 29/00 20060101ALI20250626BHEP A61P 37/00 20060101ALI20250626BHEP
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
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