U.S. District Court invalidates Amgen patent claims targeting PCSK9
- Court rules in favor of Sanofi and Regeneron in ongoing Praluent® (alirocumab) patent litigation
PARIS and TARRYTOWN, NY – August 28, 2019 – Sanofi and Regeneron Pharmaceuticals, Inc. announced today that the U.S. District Court for the District of Delaware ruled in their favor and found as a matter of law that Amgen’s asserted patent claims for antibodies targeting PCSK9 (proprotein convertase subtilisin/kexin type 9) are invalid based on lack of enablement.
“It has been our longstanding belief that all of Amgen’s asserted U.S. PCSK9 patent claims are invalid, and we are pleased today’s decision reaffirms this,” said Karen Linehan, Executive Vice President and General Counsel, Sanofi.
Today’s ruling overturned portions of an earlier jury verdict upholding the validity of three claims. On February 25, 2019, a jury previously found in Sanofi and Regeneron’s favor that two other asserted Amgen patent claims are invalid. This means that Sanofi and Regeneron have successfully invalidated all five asserted Amgen patent claims.
“Today’s decision by the U.S. District Court for the District of Delaware validates our position that Amgen’s patents are overly broad and invalid,” said Joseph LaRosa, Executive Vice President, General Counsel and Secretary, Regeneron. “Praluent was developed using Regeneron’s proprietary science and technology and the judge has confirmed our position by issuing this ruling.”
Praluent® (alirocumab) inhibits the binding of PCSK9 to the low-density lipoprotein (LDL) receptor and thereby increases the number of available LDL receptors on the surface of liver cells to clear LDL, which lowers LDL cholesterol (LDL-C) levels in the blood. Praluent was developed by Regeneron and Sanofi under a global collaboration agreement.
Praluent is approved in more than 60 countries worldwide, including the U.S., European Union (EU), Japan, Canada, Switzerland, Mexico and Brazil. In the U.S., Praluent is approved to reduce the risk of heart attack, stroke and unstable angina requiring hospitalization in adults with established cardiovascular disease. Praluent is also approved as an adjunct to diet, alone or in combination with other lipid-lowering therapies (e.g., statins, ezetimibe), for the treatment of adults with primary hyperlipidemia (including heterozygous familial hypercholesterolemia) to reduce LDL-C.
About Regeneron Pharmaceuticals, Inc.
Regeneron (NASDAQ: REGN) is a leading biotechnology company that invents life-transforming medicines for people with serious diseases. Founded and led for 30 years by physician-scientists, our unique ability to repeatedly and consistently translate science into medicine has led to seven FDA-approved treatments and numerous product candidates in development, all of which were homegrown in our laboratories. Our medicines and pipeline are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, infectious diseases, pain and rare diseases.
Regeneron is accelerating and improving the traditional drug development process through our proprietary VelociSuite® technologies, such as VelocImmune® which produces optimized fully-human antibodies, and ambitious research initiatives such as the Regeneron Genetics Center, which is conducting one of the largest genetics sequencing efforts in the world.