Novo Nordisk acquires Prothena’s ATTR amyloidosis programme for up to $1.2bn

Novo Nordisk has acquired Prothena’s clinical stage antibody PRX004 and broader ATTR amyloidosis programme.

PRX004 is a phase 2 ready anti-amyloid immunotherapy designed to deplete the amyloid deposits that are associated with the disease pathology of ATTR amyloidosis.

ATTR amyloidosis is a rare, progressive and fatal disease characterised by the abnormal build-up of amyloid deposits composed of misfolded transthyretin protein in organs and tissues, most commonly the heart and/or nervous system.

Prothena has completed a phase 1 study with PRX004 in patients with hereditary forms of ATTR, in which PRX004 was found to be safe and well tolerated.

Novo Nordisk will initially focus on the clinical development of PRX004 in ATTR cardiomyopathy – an underdiagnosed and potentially fatal form of ATTR amyloidosis characterised by build-up of amyloid deposits in cardiac tissue.

Novo Nordisk acquires Prothena’s wholly-owned subsidiary and gains full worldwide rights to the intellectual property and related rights of Prothena’s ATTR amyloidosis business and pipeline.

Prothena is eligible to receive development and sales milestone payments totalling up to 1.2 billion US dollars including 100 million dollars in upfront and near-term clinical milestone payments.

“We are confident that Novo Nordisk will leverage its extensive expertise in developing treatments for those affected by cardiovascular diseases to advance this promising potential treatment to patients on an expedited timeline,” said Hideki Garren, MD, PhD, chief medical officer of Prothena.

“With Novo Nordisk’s commitment to further develop PRX004 in ATTR cardiomyopathy, Prothena will continue to focus on our mission to advance our robust portfolio designed to address rare peripheral amyloid and neurodegenerative diseases.”

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