Editas Medicine Presents Preclinical Data on EDIT-103 for Rhodopsin-associated Autosomal Dominant Retinitis Pigmentosa at the European Society of Gene…

Posted: October 16, 2022 at 1:47 am

Studies in non-human primates demonstrated nearly 100% gene editing and knockout of endogenous RHO gene and more than 30% replacement protein levels using a dual vector AAV approach

Treated eyes showed morphological and functional photoreceptor preservation

EDIT-103 advancing towards IND-enabling studies

CAMBRIDGE, Mass., Oct. 13, 2022 (GLOBE NEWSWIRE) -- Editas Medicine, Inc. (Nasdaq: EDIT), a leading genome editing company, today announced ex vivo and in vivo preclinical data supporting its experimental medicine EDIT-103 for the treatment of rhodopsin-associated autosomal dominant retinitis pigmentosa (RHO-adRP). The Company reported these data in an oral presentation today at the European Society of Gene and Cell Therapy 29th Annual Meeting in Edinburgh, Scotland, UK.

EDIT-103 is a mutation-independent CRISPR/Cas9-based, dual AAV5 vectors knockout and replace (KO&R) therapy to treat RHO-adRP. This approach has the potential to treat any of over 150 dominant gain-of-function rhodopsin mutations that cause RHO-adRP with a one-time subretinal administration.

These promising preclinical data demonstrate the potential of EDIT-103 to efficiently remove the defective RHO gene responsible for RHO-adRP while replacing it with an RHO gene capable of producing sufficient levels of RHO to preserve photoreceptor structure and functions. The program is progressing towards the clinic, said Mark S. Shearman, Ph.D., Executive Vice President and Chief Scientific Officer, Editas Medicine. EDIT-103 uses a dual AAV gene editing approach, and also provides initial proof of concept for the treatment of other autosomal dominant disease indications where a gain of negative function needs to be corrected.

Key findings include:

Full details of the Editas Medicine presentations can be accessed in the Posters & Presentations section on the Companys website.

About EDIT-103EDIT-103 is a CRISPR/Cas9-based experimental medicine in preclinical development for the treatment of rhodopsin-associated autosomal dominant retinitis pigmentosa (RHO-adRP), a progressive form of retinal degeneration. EDIT-103 is administered via subretinal injection and uses two adeno-associated virus (AAV) vectors to knockout and replace mutations in the rhodopsin gene to preserve photoreceptor function. This approach can potentially address more than 150 gene mutations that cause RHO-adRP.

AboutEditas MedicineAs a leading genome editing company, Editas Medicine is focused on translating the power and potential of the CRISPR/Cas9 and CRISPR/Cas12a genome editing systems into a robust pipeline of treatments for people living with serious diseases around the world. Editas Medicine aims to discover, develop, manufacture, and commercialize transformative, durable, precision genomic medicines for a broad class of diseases. Editas Medicine is the exclusive licensee of Harvard and Broad Institutes Cas9 patent estates and Broad Institutes Cas12a patent estate for human medicines. For the latest information and scientific presentations, please visit http://www.editasmedicine.com.

Forward-Looking StatementsThis press release contains forward-looking statements and information within the meaning of The Private Securities Litigation Reform Act of 1995. The words "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "plan," "potential," "predict," "project," "target," "should," "would," and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. The Company may not actually achieve the plans, intentions, or expectations disclosed in these forward-looking statements, and you should not place undue reliance on these forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in these forward-looking statements as a result of various factors, including: uncertainties inherent in the initiation and completion of preclinical studies and clinical trials and clinical development of the Companys product candidates; availability and timing of results from preclinical studies and clinical trials; whether interim results from a clinical trial will be predictive of the final results of the trial or the results of future trials; expectations for regulatory approvals to conduct trials or to market products and availability of funding sufficient for the Companys foreseeable and unforeseeable operating expenses and capital expenditure requirements. These and other risks are described in greater detail under the caption Risk Factors included in the Companys most recent Annual Report on Form 10-K, which is on file with theSecurities and Exchange Commission, as updated by the Companys subsequent filings with theSecurities and Exchange Commission, and in other filings that the Company may make with theSecurities and Exchange Commissionin the future. Any forward-looking statements contained in this press release speak only as of the date hereof, and the Company expressly disclaims any obligation to update any forward-looking statements, whether because of new information, future events or otherwise.

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Editas Medicine Presents Preclinical Data on EDIT-103 for Rhodopsin-associated Autosomal Dominant Retinitis Pigmentosa at the European Society of Gene...

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