FDA ACCEPTS FOR REVIEW NEW DRUG APPLICATION FOR SODIUM ZIRCONIUM CYCLOSILICATE (ZS-9) FOR THE TREATMENT OF HYPERKALAEMIA

18 October 2016 [07:00] AstraZeneca today announced that the US Food and Drug Administration (FDA) has accepted a complete re-submission of a New Drug Application (NDA) for sodium zirconium cyclosilicate (ZS-9), a potential new medicine for the treatment of hyperkalaemia (high potassium level in the blood serum) by ZS Pharma, a wholly -owned subsidiary of AstraZeneca. The FDA has indicated that this is a complete class 2 response. Interactions with other health authorities in the European Union and Australia are ongoing with decisions expected in the first half of 2017. About sodium zirconium cyclosilicate (ZS-9) for oral suspension Sodium zirconium cyclosilicate (ZS-9) is an insoluble, non-absorbed compound with a structure that was designed to preferentially capture potassium ions. Sodium zirconium cyclosilicate has been studied in three double-blind, placebo controlled trials and in one ongoing 12-month open label clinical trial in patients with hyperkalaemia which represents over 1,600 patients treated. Sodium zirconium cyclosilicate is an investigational medicine that is not currently approved for any indication in any market. About hyperkalaemia Hyperkalaemia (potassium levels > 5.0 mEq/L in the blood serum) commonly occurs in patients with advanced chronic kidney disease and/or chronic heart failure, and may lead to cardiac arrest and death. Treatment with common heart medicines (RAAS inhibitors) can also be responsible for increases in hyperkalaemia. Current therapeutic options are limited, leaving a high unmet medical need in these patients. About ZS Pharma ZS Pharma was founded in 2008, became a public company in 2014 and, in December 2015, joined the AstraZeneca Group. ZS Pharma is focused on the development and commercialisation of highly selective, non-absorbed drugs to treat renal, cardiovascular and metabolic disorders. Additional information about ZS Pharma is available at www.zspharma.com. About AstraZeneca in Cardiovascular & Metabolic Disease (CVMD) Cardiovascular, metabolic disease and chronic kidney disease are key areas of focus for AstraZeneca as part of the company's strategy for achieving scientific leadership and returning to growth. Our patient-led strategy is focused on addressing the multiple risk factors facing CVMD and CKD patients at different stages of their disease, with the goal of reducing morbidity and mortality through life changing medicines. About AstraZeneca AstraZeneca is a global, science-led biopharmaceutical company that focuses on the discovery, development and commercialisation of prescription medicines, primarily for the treatment of diseases in three main therapy areas - Oncology, Cardiovascular & Metabolic Diseases and Respiratory. The Company also is selectively active in the areas of autoimmunity, neuroscience and infection. 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 and follow us on Twitter @AstraZeneca. Media Enquiries Neil Burrows UK/Global +44 203 749 5637 Vanessa Rhodes UK/Global +44 203 749 5736 Karen Birmingham UK/Global +44 203 749 5634 Rob Skelding UK/Global +44 203 749 5821 Jacob Lund Sweden +46 8 553 260 20 Michele Meixell US +1 302 885 2677 Investor Relations Thomas Kudsk Larsen +44 203 749 5712 Craig Marks Finance, Fixed +44 7881 615 764 Income, M&A Henry Wheeler Oncology +44 203 749 5797 Mitchell Chan Oncology +1 240 477 3771 Lindsey Trickett Cardiovascular & +1 240 543 7970 Metabolic Diseases Nick Stone Respiratory +44 203 749 5716 Christer Gruvris Autoimmunity, +44 203 749 5711 neuroscience & infection US toll free +1 866 381 7277 Adrian Kemp Company Secretary, AstraZeneca PLC