18 September 2019

AstraZeneca has amended its collaboration agreement with Ironwood Pharmaceuticals, Inc. (Ironwood) in China mainland, China Hong Kong and China Macau for Linzess* (linaclotide), a first-in-class new treatment for patients with irritable bowel syndrome with constipation (IBS-C). IBS-C is characterised by symptoms of abdominal pain and constipation, is a chronic and prevalent functional gastrointestinal disorder in China and there are currently few treatment options for this condition.

The amended agreement gives AstraZeneca sole responsibility for developing, manufacturing and commercialising Linzess in China mainland, China Hong Kong and China Macau. Ironwood will no longer be involved in the research and development or the commercialisation of Linzess; it will also transfer manufacturing responsibility to AstraZeneca.

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