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3 May, 2017 - 14:26 By Tony Quested

Z Factor raises £7m to bring lung treatment to clinic

superx, medicxi johnson & johnson innovation, cambridge

Z Factor, a Cambridge University spin-out, has raised £7 million to discover new drugs to fight liver and lung disease caused by a major gene defect.

The Series A has been led by existing investor Medicxi. Cambridge Enterprise and Cambridge Innovation Capital have also joined in the founding round.  Founded by Jim Huntington (above), Professor of Molecular Haemostasis at the Cambridge Institute for Medical Research, Z Factor previously raised undisclosed seed funding from Medicxi.

The Z Factor team is engaged in the discovery of new drugs to treat Alpha-1-Antitrypsin Deficiency (AATD).  

“AATD, which is a significant cause of liver and lung disease, results from a defect in the gene encoding Alpha-1-antitrypsin,” said Professor Huntington.  “Individuals with two defective copies of the gene, making up around 1 in 2000 of the Western population, typically develop emphysema starting in their 30s.

“They are also at an increased risk of developing liver diseases such as cirrhosis and cancer.  Around two per cent of people have one defective copy of this gen, and are at 5-fold increased risk of developing Chronic Obstructive Pulmonary Disease (COPD) as they age.”

The most common mutation causing AATD is called the Z mutation, which disrupts the normal folding of the protein. Professor Huntington and his team at Cambridge University obtained the crystallographic structure of this mutant form of Alpha-1-antitrypsin, which allowed for the first time the rational design of drugs that could correct folding and prevent the development of associated diseases.

“These small molecule drugs act like molecular chaperones for the defective protein, accelerating folding to the correct native state,” said Nigel Ramsden at RxCelerate, who together with David Fox, is leading the drug discovery effort for Z Factor.

Cambridge Enterprise helped in Z Factor’s formation in 2015, licensing key intellectual property to the company. The company has already identified dozens of molecules that can correct the folding defect caused by the Z mutation, and shown that some of these drug candidates can increase Alpha-1-antitrypsin levels in an in vivo model of AATD.

Z Factor is now working to select the best molecules for use as a drug in human trials.  

“The existing molecules clearly work well in model systems” said David Fox.  “The next challenge is to create molecules that will work safely in human clinical trials.”

The company expects to reach the clinic with its lead candidate in 2019.

David Grainger, partner at Medicxi and executive chairman at Z Factor, added: “We are delighted to work once again with Cambridge Enterprise to ensure this exciting basic science is rapidly and efficiently translated into new medicines for a surprisingly common and debilitating cause of liver and lung disease.”
 
Following closely on the announcement of investments in ApcinteX and SuperX earlier this year, the Z Factor Series A brings the total raised during 2017 by companies founded by Professor Huntington to almost £30 million.
 
Z Factor is based on the Babraham Research Campus and operates as a virtual biotechnology company, with no internal operations, using an established network of outsourced drug discovery and development providers, including RxCelerate, co-located on the Babraham campus.

Kiss Communications

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