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AMT to Supply cGMP Manufacturing Services to Consortium Focused on Rare Genetic Disorders
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AMT to Supply cGMP Manufacturing Services to Consortium Focused on Rare Genetic Disorders

AMT to Supply cGMP Manufacturing Services to Consortium Focused on Rare Genetic Disorders
News

AMT to Supply cGMP Manufacturing Services to Consortium Focused on Rare Genetic Disorders

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Amsterdam Molecular Therapeutics (Euronext: AMT), a leader in human gene therapy, announced today that it has entered into an agreement with Institut Pasteur, Paris, France, and a group of French research institutes (together the "Consortium") to support clinical development of a novel gene therapy to treat Sanfilippo B. This rare genetic disease affecting new-born children leads to progressive neuronal degeneration and death. There is no approved therapy currently available.

On behalf of the Consortium, Institut Pasteur will lead the development program and will also sponsor the initial Phase I/II clinical study of a gene therapy to replace an enzyme (alpha-N-acetylglucosaminidase) that is missing in brain cells of SanfilippoB patients. This enzyme is specifically required for the degradation of heparan sulfate glycosaminoglycans (GAGs), essential carbohydrate molecules used to build tissue. The accumulation of incompletely degraded GAG molecules triggers a cascade of pathological events leading to neuronal dysfunction and death.

AMT will manufacture and supply the adeno-associated viral 5 (AAV5) gene therapy product to the Consortium. Thanks to donations collected during the French Telethon, the French Muscular Dystrophy Association (AFM), a Consortium member, will fully fund the development program through to completion of the Phase I/II clinical study, including all AMT manufacturing costs. The overall manufacturing contract entails payments to AMT of EUR1.8 million. If the Consortium successfully demonstrates proof of concept in the Phase I/II study, AMT will have an option to acquire full commercial rights for the program. The Phase I/II clinical study is scheduled to begin before 2013.

"This partnership leverage's AMT's proven expertise in cGMP manufacturing of gene therapy products and our experience in progressing these products through clinical development and the regulatory processes needed for successful commercialization," said Jorn Aldag, CEO of AMT. "In addition, we will have an option to acquire full commercial rights for the program on completion of the Phase I/II study, which supports our strategy to build a pipeline of orphan and ultra-orphan indications."

Muriel Eliaszewicz, Medical Director of Institut Pasteur, said: "AMT is one of the only companies in the world that has a proven ability in manufacturing cGMP quality gene therapy products, not only in batches sufficient for clinical development but also in support of a potential regulatory approval. We are delighted that we now have the ability to commence the difficult process of developing a cure for patients with this very challenging disease."

AMT has a cGMP-licensed, 375 m2 manufacturing facility to produce its AAV vectors for gene therapy products. This highly specialized facility is fully validated for commercial production and has a capacity capable of producing enough material to supply its European and North American target markets with AMT's lead product Glybera(R), currently under review at the European Medicines Agency (EMA) for treatment of lipoprotein lipase deficiency (LPLD) and for the next phases of clinical development of all other programs currently in the pipeline.

In December 2010, Consortium researchers published preclinical data on the Sanfilippo B gene therapy in Molecular Therapy, the official publication of the American Society of Gene and Cell Therapy*. This data demonstrated safety and efficient spreading of the AAV5 gene vector particles throughout the brain in models of the disease. The gene vectors also exhibited long-term viability within the cells and an improvement of histological and biochemical markers.

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