AstraZeneca enters agreement with Hanmi Pharmaceuticals and Amneal Pharmaceuticals in US NEXIUM patent litigation

AstraZeneca enters agreement with Hanmi Pharmaceuticals and Amneal Pharmaceuticals in US NEXIUM patent litigation

Monday, 3 June 2013

AstraZeneca today announced it has entered into an agreement with Hanmi Pharmaceutical and affiliates ("Hanmi") and its US marketing partner Amneal Pharmaceuticals ("Amneal") to resolve certain issues and appeal others in US Nexium patent litigation regarding Hanmi's Esomeprazole Strontium 505(b)2 NDA product. The agreement eliminates the need for a trial at the US District Court for the District of New Jersey ("District Court"), thus avoiding considerable trial costs.

Under the terms of a Consent Judgment resolving the litigation, Amneal and Hanmi have conceded the validity and enforceability of AstraZeneca's US Patent Numbers 5,714,504 and 5,877,192 that protect Nexium. The Consent Judgment also provides that the Hanmi product does not infringe those patents under the District Court's claim construction of December 2012. However, AstraZeneca believes that the District Court's claim construction is erroneous and will seek reversal on appeal. The agreement also allows AstraZeneca to immediately file that appeal (without trial, post-trial briefing, and the extended time necessary for the District Court to issue its rulings) to the United States Court of Appeals for the Federal Circuit ("Federal Circuit").

While the appeal is ongoing, if Hanmi were to receive final FDA approval and pursue an "at-risk launch" of its Esomeprazole Strontium 505(b)2 NDA product, AstraZeneca retains its right to seek injunctive relief from the Federal Circuit. AstraZeneca understands that Hanmi's Esomeprazole Strontium 505(b)2 NDA product is not subject to automatic substitution with Nexium.

NOTES TO EDITORS

About AstraZeneca

AstraZeneca is a global, innovation-driven biopharmaceutical business that focuses on the discovery, development and commercialisation of prescription medicines, primarily for the treatment of cardiovascular, metabolic, respiratory, inflammation, autoimmune, oncology, infection and neuroscience diseases. AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide. For more information please visit: www.astrazeneca.com

CONTACTS

Media Enquiries

Esra Erkal-Paler +44 20 7604 8030 (UK/Global)
Vanessa Rhodes +44 20 7604 8037 (UK/Global)
Ayesha Bharmal +44 20 7604 8034 (UK/Global)
Tony Jewell +1 (302) 885 4594 (US)
Jacob Lund +46 8 553 260 20 (Sweden)

Investor Enquiries

James Ward-Lilley +44 20 7604 8122 mob: +44 7785 432613
Karl Hård +44 20 7604 8123  mob: +44 7789 654364
Colleen Proctor + 1 302 886 1842 mob: +1 302 357 4882
Ed Seage + 1 302 886 4065 mob: +1 302 373 1361

Suggested Articles

Merck is scouting replacements for CEO Ken Frazier with a preference toward an internal candidate, Bloomberg reports.

Bluebird Bio says the launch of Zynteglo, its first gene therapy, will not occur until 2020 while it tightens up its manufacturing processes.

Riival generics makers are squashing long-running lawsuits over their own versions of Sanofi's big-selling blood thinner Lovenox.