Alexion, AstraZeneca's Rare Disease group, has closed an exclusive global collaboration and licence agreement with Neurimmune AG for NI006, an investigational human monoclonal antibody currently in Phase Ib development for the treatment of transthyretin amyloid cardiomyopathy (ATTR-CM), an underdiagnosed, systemic condition that leads to progressive heart failure and high rate of fatality within four years from diagnosis. Alexion has been granted an exclusive worldwide licence to develop, manufacture and commercialise NI006. NI006 is an ATTR depleter that specifically targets tissue-deposited, misfolded transthyretin, with the potential to treat patients with advanced ATTR-CM.

NI006 adds a novel and complementary approach to AstraZeneca and Alexion's pipeline of investigational therapies focused on amyloidosis and strengthens the Company's broader commitment to addressing cardiomyopathies that can lead to heart failure. Under the terms of the agreement, the upfront payment from Alexion to Neurimmune is $30m. Alexion will make additional contingent milestone payments of up to $730m upon achievement of certain development, regulatory and commercial milestones.

It will also pay low-to-mid teen royalties on net sales of any approved medicine resulting from the collaboration. Neurimmune will continue to be responsible for completion of the current Phase Ib clinical trial on behalf of Alexion, and Alexion will pay certain trial costs. Alexion will be responsible for further clinical development, manufacturing and commercialisation following the Phase Ib trial.