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Nexium's European Patent Upheld

. By
Albuquerque, NMThe European Patent Office (EPO) has ruled that AstraZeneca's European patent covering the MUPS formulation, (EP 723 437), is still valid. MUPS® stands for multiple unit pellet tablets, comprising a proton pump inhibitor (PPI) compound. The MUPS formulation is used for both Nexium and Losec.

The ruling is significant because Nexium is AstraZeneca's most important product and the world's second best-selling medicine. Worldwide sales were $5.2 billion in 2006, with Europe accounting for $1.2 billion.

Patent AgencyEuropean Patent Office media relations director Rainer Osterwalder pointed out that this ruling might be only an interim decision, as companies usually will appeal these rulings.

The European Patent was challenged in June 2005 by generic drugmakers, Hexal (Germany), Ratiopharm (Germany), Teva Pharmaceutical Industries Ltd (Israel), and unit of Novartis (France).

The EPO's decision means that this patent is still valid in Austria, Belgium, Switzerland, Germany, Denmark, Spain, France, UK, Greece, Ireland, Italy, Liechtenstein, Luxembourg, Monaco, The Netherlands, Portugal, Sweden, Latvia, Lithuania and Slovenia until 2015.

Patents in the United States, Nexium's biggest market, are also being challenged, but no date for a trial has been set. (Reporting by Ben Hirschler).

In a media release issued today, and posted on their web site, AstraZeneca, stated "AstraZeneca has a comprehensive intellectual property portfolio protecting MUPS® formulations as well as the products Nexium® and Losec®. More importantly, the intellectual property portfolio protecting Nexium® includes additional patents with expiration dates ranging from 2009 through to 2018. In addition to these patents, Nexium® has data exclusivity valid until March 2010 in most major European markets".

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