Compositions and Methods for Inhibiting Gene Expression of LPA
Summary
The European Patent Office published patent EP4029941A1 for Arrowhead Pharmaceuticals, Inc., covering compositions and methods for inhibiting gene expression of Lipoprotein(a) (LPA). The patent lists 12 inventors and claims priority to IPC classifications C12N 15/113 and A61K 31/713. The designation covers all 31 European Patent Convention member states.
What changed
The EPO granted Arrowhead Pharmaceuticals patent EP4029941A1 for RNAi-based compositions targeting the LPA gene, which is associated with cardiovascular disease risk. The patent application includes claims covering the molecular constructs, delivery mechanisms, and therapeutic applications for reducing LPA protein expression. Designated states include all major EU economies (DE, FR, GB, IT, ES) plus Switzerland, Norway, and other EPC member states.
Patent holders and licensees should verify freedom-to-operate for any LPA-targeting therapeutics in these designated territories before commercial development. Generic pharmaceutical companies and research institutions should assess whether their LPA gene inhibition programs may infringe these claims. The patent term extends 20 years from the priority date.
Source document (simplified)
COMPOSITIONS AND METHODS FOR INHIBITING GENE EXPRESSION OF LPA
Publication EP4029941A1 Kind: A1 Mar 25, 2026
Applicants
Arrowhead Pharmaceuticals, Inc.
Inventors
MELQUIST, Stacey, KANNER, Steven, ROZEMA, David, B., LEWIS, David, L., ALMEIDA, Lauren, J., WAKEFIELD, Darren, H, TRUBETSKOY, Vladimir, S., PEI, Tao, LI, Zhen, ALMEIDA, Aaron
IPC Classifications
C12N 15/113 20100101AFI20220614BHEP A61K 31/713 20060101ALI20220614BHEP
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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