ROCKVILLE, Md./PRNewswire/ -- REGENXBIO Inc. (Nasdaq: RGNX), a leading clinical-stage biotechnology company seeking to improve lives through the curative potential of gene therapy based on its proprietary NAV® Technology Platform, today announced that Ultragenyx Pharmaceutical Inc. has exercised an option for an exclusive worldwide license to REGENXBIO's NAV Vectors, including NAV AAV9, for the treatment of CDKL5 Deficiency Disorder (CDD).
Under the terms of the license, REGENXBIO will receive an upfront payment, ongoing fees, milestone payments and royalties on net sales of products incorporating NAV Vectors. The option exercised by Ultragenyx is the final remaining disease indication option under the 2015 license agreement between REGENXBIO and Dimension Therapeutics, Inc., a wholly owned subsidiary of Ultragenyx. CDD is a severe and debilitating neurological disorder that shares many features of Rett Syndrome, though the two disorders are now considered distinct from each other.
"We are looking forward to initiating this program in CDD, a disease with increasing awareness and diagnosis," said Emil D. Kakkis, M.D., Ph.D., Chief Executive Officer and President of Ultragenyx. "AAV9 has been shown to be effective for gene therapy delivery to the central nervous system, and we believe it is well-suited for this neurological indication."
Dr. Kakkis, will present the Keynote Address on Tuesday, October 23 at the 2018 CDKL5 Forum hosted by the Loulou Foundation.
"This license for CDD further validates the NAV Technology Platform for use in development of treatments for disorders of the central nervous system," said Kenneth T. Mills, President and Chief Executive Officer of REGENXBIO. "We are pleased to expand our partnership with Ultragenyx with this new license, and to continue to enable their commitment to develop gene therapy treatments for serious rare and ultra-rare genetic diseases."
CDD is an X-linked genetic disorder that results in seizures that typically begin in the first few months of life and severe intellectual and gross motor impairment. The CDKL5 gene provides instructions for making a protein that is essential for normal brain development, with mutations causing a deficiency in the protein level. CDD is caused by a deficiency in an enzyme that may only be needed in small quantities for the brain to function normally. In the past, CDD was commonly diagnosed as an atypical Rett Syndrome until genetic diagnostics changed this view and improved accurate diagnosis.
About Ultragenyx Pharmaceutical Inc.
Ultragenyx is a biopharmaceutical company committed to bringing to patients novel products for the treatment of serious rare and ultra-rare genetic diseases. The company has built a diverse portfolio of approved therapies and product candidates aimed at addressing diseases with high unmet medical need and clear biology for treatment, for which there are no approved therapies.
The company is led by a management team experienced in the development and commercialization of rare disease therapeutics. Ultragenyx's strategy is predicated upon time and cost-efficient drug development, with the goal of delivering safe and effective therapies to patients with the utmost urgency.
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Natalie Wildenradt, 646-681-8192
Adam Pawluk, 202-591-4063