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April 2014
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Sarepta Therapeutics Announces Plans to Submit New Drug Application to FDA for Eteplirsen for the Treatment of Duchenne Muscular Dystrophy by Year End 2014

Sarepta Therapeutics

Sarepta Therapeutics, Inc., a developer of innovative RNA-based therapeutics, announced on April 21 it plans to submit a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) by the end of 2014 for the approval of eteplirsen for the treatment of Duchenne muscular dystrophy (DMD). Eteplirsen is Sarepta’s lead exon-skipping drug candidate in development for the treatment of patients with DMD who have a genotype amenable to skipping of exon 51.

The plan to submit an NDA for eteplirsen by the end of 2014 is based on a guidance letter from the Agency that proposed a strategy regarding the submission of an NDA for eteplirsen under a potential Accelerated Approval pathway and served as the final meeting minutes for four meetings that took place between November, 2013 and March, 2014. The Agency stated that “with additional data to support the efficacy and safety of eteplirsen for the treatment of DMD, an NDA should be fileable,” and outlined examples of additional data and analysis that, if positive, will be important to enhance the acceptability of an NDA filing by addressing areas of ongoing concern in the existing dataset. Additionally, the Agency provided clear guidance on an open-label, historically controlled confirmatory study of eteplirsen, as well as initial guidance on a placebo-controlled study of one or more follow-on DMD drug candidates, which, like the open-label study, could also be considered an acceptable confirmatory study to verify the clinical benefit of eteplirsen in the event of an accelerated approval.

“As we announce our plan to submit an eteplirsen NDA by the end of 2014, we are very pleased with the detailed guidance that the FDA has provided us on a potential eteplirsen approval pathway and their support of a historically controlled eteplirsen confirmatory study,” said Chris Garabedian, president and chief executive officer of Sarepta Therapeutics. “We also appreciate that the FDA shares our urgency in dosing a broader base of eteplirsen patients and has encouraged us to begin the clinical program with our follow-on exon-skipping drugs as soon as possible.”

Click here to read the full Sarepta press release.

CureDuchenne collaborated with Children’s National Medical Center and the Foundation to Eradicate Duchenne in 2010 to provide funding and support that enabled Sarepta Therapeutics (then AVI Biopharma) to move forward with the clinical development of etiplersen.

CureDuchenne is proud to have been an early supporter of Sarepta by providing funding that enabled the company to move forward with their clinical trial of eteplirsen.  We look forward to continued success for eteplirsen and all of their additional exon programs.

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