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Synthetic Biologics receives US patent covering combination of Estriol and Copaxone for MS
Rockville, Maryland | Monday, April 8, 2013, 13:00 Hrs  [IST]

The US Patent & Trademark Office (USPTO)  has issued Patent No. 8,372,826 to Synthetic Biologics, Inc. The patent entitled, Estriol Therapy for Multiple Sclerosis and Other Autoimmune Diseases, to the Regents of the University of California which includes claims to the use of the company's drug candidate, Trimesta (oral estriol), in combination with glatiramer acetate injection (Copaxone).

Copaxone is the number one selling drug for multiple sclerosis with approximately $4 billion in annual sales. Currently marketed exclusively by Teva Pharmaceutical Industries Ltd., Copaxone is expected to face generic competition as certain patent terms begin to expire in 2014. Through its wholly owned subsidiary, Synthetic Biologics holds the exclusive worldwide license to US Patent 8,372,826 and 6,936,599 and pending patents for multiple sclerosis and other autoimmune diseases covering the uses of its drug candidate, Trimesta.

Trimesta is currently being utilised in combination with Copaxone in a randomized, double-blind, placebo-controlled phase II clinical trial for the treatment of relapsing-remitting multiple sclerosis in women. Lead Principal investigator, Rhonda Voskuhl, MD, director, University of California, Los Angeles (UCLA) Multiple Sclerosis Program, UCLA Department of Neurology, along with investigators at 14 other centres in the US, are administering either Trimesta (8 milligrams orally per day) in combination with Copaxone (20 milligrams per day), or a placebo plus Copaxone to patients enrolled in the trial.

"The claims in this new patent further expand Synthetic Biologics' coverage of our proprietary oral estriol product candidate, Trimesta, to include its use in combination with the leading FDA-approved multiple sclerosis drug, Copaxone," stated Jeffrey Riley, chief executive officer at Synthetic Biologics. "We look forward to reporting the clinical results of this combination therapy after the relapsing-remitting multiple sclerosis patients complete their two years of dosing and monitoring scheduled for January 2014."

The 164-patient relapsing-remitting multiple sclerosis trial is fully enrolled and it is anticipated that the last patient will complete their last visit during January 2014. The primary outcome measure for the study is the rate of relapse between the placebo and treated groups at two years, an accepted FDA-approvable endpoint in MS. The clinical trial is supported by grants exceeding $8 million, awarded by the National Multiple Sclerosis Society in partnership with the National Multiple Sclerosis Society's (NMSS) Southern California chapter, and the National Institutes of Health.

Synthetic Biologics, Inc. is a biotechnology company focused on the development of product candidates for serious infections and diseases.

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