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Press Release

PhaseRx Receives Orphan Drug Designation from FDA for PRX-OTC for the Treatment of Ornithine Transcarbamylase Deficiency

PhaseRx
Posted on: 29 Nov 16

SEATTLE, Nov. 28, 2016 /PRNewswire/ -- PhaseRx, Inc. (PZRX), a biopharmaceutical company developing mRNA treatments for life-threatening inherited liver diseases in children, today announced that its lead candidate, PRX-OTC, which is being developed for the treatment of ornithine transcarbamylase deficiency (OTCD), has received orphan drug designation by the U.S. Food and Drug Administration (FDA).

OTCD is a rare liver disorder caused by an inherited single-gene deficiency that results in hyperammonemia (elevated ammonia in the blood), and can lead to irreversible neurological impairment, coma and death. PRX-OTC is an intracellular enzyme replacement therapy (i-ERT) designed to replace the missing or defective enzyme in patients with OTCD, thereby correcting the disease. PRX-OTC has shown therapeutic potential in a preclinical model of OTCD, including lowering of blood ammonia and survival of 100% of treated mice.

"The FDA's decision to grant PRX-OTC orphan drug designation for OTCD is another important milestone in the development of our lead product candidate, as we prepare to file the IND by the end of 2017 and initiate our clinical trial in 2018," said Robert W. Overell, Ph.D., president and chief executive officer. "PRX-OTC is the first of three drugs in development using our Hybrid mRNA Technology™, and we believe it has the potential to correct the disease in children, a population that could particularly benefit from treatment for this rare disease. Our team at PhaseRx is driving hard to advance these drugs to help the lives of families affected by this devastating liver disease that causes irreversible brain damage and potentially fatal ammonia toxicity."

The FDA grants orphan drug designation to investigational drugs and biologics that are intended for the treatment of rare diseases that affect fewer than 200,000 people in the U.S. Orphan drug status is intended to facilitate drug development for rare diseases and may provide several benefits to drug developers, including assistance with clinical study design and drug development, tax credits for qualified clinical trials costs, exemptions from certain FDA application fees, and seven years of market exclusivity upon regulatory product approval.

About OTCD

OTCD is a rare liver disorder typically diagnosed between birth and the age of twelve. It is caused by an inherited single-gene deficiency that results in hyperammonemia (elevated ammonia in the blood), and can lead to devastating consequences, including cumulative and irreversible neurological impairment, coma and death. The only cure for OTCD is a liver transplant. Currently available drug treatments do not correct the disease, and do not eliminate the risk of life-threatening crises.

About PhaseRx

PhaseRx is a biopharmaceutical company dedicated to developing mRNA products for the treatment of children with inherited enzyme deficiencies in the liver using intracellular enzyme replacement therapy (i-ERT). PhaseRx's initial product development focus is on urea cycle disorders, a group of rare genetic diseases that generally present before the age of twelve and are characterized by the body's inability to remove ammonia from the blood with potentially devastating consequences for patients. The company's i-ERT approach is enabled by its proprietary Hybrid mRNA Technology™ platform. PhaseRx is headquartered in Seattle. For more information, please visit www.phaserx.com.

For more information:
finance.yahoo.com/news/phaserx-receives-orphan-drug-designation-133000462.html

Editor's Details

Mike Wood
PharmiWeb.com
www.pharmiweb.com
editor@pharmiweb.com

Last updated on: 29/11/2016

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