AstraZeneca plc (ˌæstrəˈzɛnəkə) is a British-Swedish multinational pharmaceutical and biotechnology company with its headquarters at the Cambridge Biomedical Campus in Cambridge, England. It has a portfolio of products for major diseases in areas including oncology, cardiovascular, gastrointestinal, infection, neuroscience, respiratory, and inflammation. It has been involved in developing the Oxford–AstraZeneca COVID-19 vaccine.
The company was founded in 1999 through the merger of the Swedish Astra AB and the British Zeneca Group (itself formed by the demerger of the pharmaceutical operations of Imperial Chemical Industries in 1993). Since the merger it has been among the world's largest pharmaceutical companies and has made numerous corporate acquisitions, including Cambridge Antibody Technology (in 2006), MedImmune (in 2007), Spirogen (in 2013) and Definiens (by MedImmune in 2014). It has its research and development concentrated in three strategic centres: Cambridge, England; Gothenburg, Sweden and Gaithersburg in Maryland, U.S.
AstraZeneca has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index.
Astra AB was founded in 1913 in Södertälje, Sweden, by 400 doctors and apothecaries. In 1993 the British chemicals company ICI (established from four British chemical companies) demerged its pharmaceuticals businesses and its agrochemicals and specialities businesses, to form Zeneca Group PLC. Finally, in 1999 Astra and Zeneca Group merged to form AstraZeneca plc, with its headquarters in London. In 1999, AstraZeneca identified a new location for the company's US base, the "Fairfax-plus" site in North Wilmington, Delaware.
In 2002, its drug Iressa (gefitinib) was approved in Japan as monotherapy for non-small cell lung cancer. On 3 January 2004 Dr Robert Nolan, a former director of AstraZeneca, formed the management team of ZI Medical.
In 2005, the company acquired KuDOS Pharmaceuticals, a UK biotech company, for £120 million.