Homology Medicines Advances First Gene Editing Development Candidate into IND-Enabling Studies for Pediatric Patients with Phenylketonuria
- Data Demonstrates Highly Efficient and Selective In Vivo Gene Editing in a Humanized Murine Model -
- New Internal GMP Manufacturing Capability to Support Gene Therapy and Gene Editing Programs -
“Starting IND-enabling studies with an in vivo, nuclease-free gene editing candidate is an important milestone for Homology and achieves a key 2018 corporate goal,” said
In a humanized murine model that has a liver comprised of human and murine hepatocytes, a single intravenous dose of Homology’s gene editing development candidate (HMI-103) targeting the human PAH gene demonstrated efficient editing that resulted in therapeutic levels of human PAH, as measured by edited mRNA expression of greater than ten percent in human hepatocytes. HMI-103 also demonstrated selective editing for human hepatocytes with no editing observed in murine cells in the liver. Homology plans to share details of the data in future scientific presentations and publications.
Unlike Homology’s gene therapy program in PKU for adults whose livers are mature, the nuclease-free gene editing technology may offer a permanent correction in rapidly dividing cells of children. This highly efficient and precise in vivo gene editing approach leverages the body’s natural DNA repair process of homologous recombination to insert a functional copy of a gene into the genome.
In addition, Homology has established new internal GMP manufacturing capabilities and expects to leverage its recently constructed 25,000 square foot facility and initial bioreactor scale of 500 liters for this gene editing program, as well as other pipeline programs. Homology has developed a scalable serum-free suspension bioreactor cell culture process and an optimized purification process that deliver robust and high-quality AAVHSC vector for both gene therapy and gene editing programs.
About Phenylketonuria (PKU)
PKU is a rare, inherited inborn error of metabolism caused by a mutation in the PAH gene. The current standard of care is a highly restrictive diet, but it is not always effective. If left untreated, PKU can result in progressive and severe neurological impairment. PKU affects approximately 15,000 people in the U.S., and an estimated 300 newborns are diagnosed each year. There are currently no treatments available that address the genetic defect in PKU.
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including statements regarding plans to share preclinical data in future scientific presentations and publications; the potential and advancement of our novel gene therapy and gene editing technology platform and pipeline, and timing thereof; our beliefs regarding our manufacturing capabilities and ability to accommodate both gene therapy and gene editing pipeline programs; our goal of improving the lives of patients with rare genetic diseases; and beliefs about our position as a leader in the development of genetic medicines. These statements are neither promises nor guarantees, but involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to, the following: the fact that we have and expect to continue to incur significant losses; our need for additional funding, which may not be available; failure to identify additional product candidates and develop marketable products; the early stage of our development efforts; our failure or the failure of our collaborators to successfully develop and commercialize drug candidates; potential unforeseen events during clinical trials could cause delays or other adverse consequences; risks relating to the regulatory approval process; our product candidates may cause serious adverse side effects; inability to maintain our collaborations, or the failure of these collaborations; our reliance on third parties; the inability to obtain orphan drug exclusivity; failure to obtain international marketing approval; failure to obtain U.S. marketing approval; ongoing regulatory obligations; effects of significant competition; failure to attract, retain and motivate qualified personnel; the possibility of system failures or security breaches; risks relating to intellectual property; the price of our common stock may be volatile; significant costs as a result of operating as a public company; and any securities class action litigation. These and other important factors discussed under the caption "Risk Factors" in our Quarterly Report on Form 10-Q for the quarter ended
|Investor Contact:||Media Contact:|
|Theresa McNeely||Cara Mayfield|
|SVP, Corporate Communications||Director, Corporate Communications|
|& Patient Advocacy
Source: Homology Medicines, Inc.