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DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

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Sunovion Announces FDA Acceptance for Review of New Drug Application Resubmission for Stedesa (eslicarbazepine acetate)


eslicarbazepine

(S)-10-Acetoxy- 10,11-dihydro- 5H-dibenz[b,f]azepine- 5-carboxamide

 

Sunovion Announces FDA Acceptance for Review of New Drug Application Resubmission for Stedesa (eslicarbazepine acetate) as a Once-Daily Adjunctive Therapy for Partial-onset Seizures in Adults with Epilepsy

MARLBOROUGH, Feb 27, 2013

Sunovion Pharmaceuticals Inc. (Sunovion) today announced that the U.S. Food and Drug Administration (FDA) has accepted for review the Company’s New Drug Application (NDA) resubmission for Stedesa® (eslicarbazepine acetate) for use as a once-daily adjunctive therapy in the treatment of partial-onset seizures in patients 18 years and older with epilepsy. Stedesa is the proposed trade name for eslicarbazepine acetate.

“We are pleased to achieve this regulatory milestone for Stedesa, which, if approved, may offer adult patients living with epilepsy an effective, once-daily, adjunctive treatment option for managing partial-onset seizures,” said Fred Grossman, D.O., FAPA, Senior Vice President, Clinical Development and Medical Affairs at Sunovion. “Adequate seizure control of this most common form of epilepsy remains an unmet medical need for a significant number of patients and Sunovion is committed to providing a treatment option to help address this need.”

The NDA for Stedesa is supported by data from three Phase III randomized, double-blind, placebo-controlled 12-week maintenance trials of similar study design, which included more than 1,300 patients with partial-onset seizures in 35 countries, including the United States. Treatment with Stedesa demonstrated statistically significant reductions in standardized seizure frequency when used as adjunctive therapy. The most commonly reported adverse events in the clinical trials were dizziness, somnolence, headache, nausea, diplopia, vomiting, fatigue, ataxia, vision blurred, and vertigo.

The original NDA was submitted to the FDA in March 2009. This resubmission was prepared by Sunovion following receipt of the FDA’s April 2010 Complete Response Letter and subsequent correspondence requesting additional information. Eslicarbazepine acetate is currently marketed in Europe by BIAL-Portela & Cª, S.A and by BIAL´s licensee, Eisai Europe Limited, a UK subsidiary of Eisai Co., Ltd. under the trade name Zebinix®. Zebinix® was approved by the European Commission on April 21, 2009 as adjunctive therapy in adult patients with partial-onset seizures with or without secondary generalization.

Sunovion and BIAL are also conducting clinical trials to evaluate eslicarbazepine acetate as monotherapy in the treatment of partial-onset seizures in adult patients with epilepsy.

Epilepsy is one of the most common neurological disorders and, according to the Centers for Disease Control and Prevention, affects nearly 2.2 million people in the United States.1 It is characterized by abnormal firing of impulses from nerve cells in the brain.2 In partial-onset seizures, these bursts of electrical activity are initially focused in specific areas of the brain, but may become more widespread, with symptoms varying according to the affected areas.3,4

Stedesa (eslicarbazepine acetate) is an investigational voltage-gated sodium and T-type calcium channel blocker that has been evaluated in three Phase III clinical trials involving more than 1,300 patients with partial-onset epilepsy worldwide. BIAL-Portela & Cª, S.A., a privately held Portuguese research based pharmaceutical company, was responsible for the initial research and development of eslicarbazepine acetate. In late 2007, Sunovion Pharmaceuticals Inc., formerly known as Sepracor Inc., acquired the rights to further develop and commercialize eslicarbazepine acetate in the U.S. and Canadian markets from BIAL.

Sunovion is a leading pharmaceutical company dedicated to discovering, developing and commercializing therapeutic products that advance the science of medicine in the Psychiatry & Neurology and Respiratory disease areas and improve the lives of patients and their families. Sunovion’s drug development program, together with its corporate development and licensing efforts, has yielded a portfolio of pharmaceutical products including LATUDA® (lurasidone HCl) tablets, LUNESTA® (eszopiclone) tablets, XOPENEX® (levalbuterol HCI) inhalation solution, XOPENEX HFA® (levalbuterol tartrate) inhalation aerosol, BROVANA® (arformoterol tartrate) inhalation solution, OMNARIS® (ciclesonide) nasal spray, ZETONNA® (ciclesonide) nasal aerosol and ALVESCO® (ciclesonide) inhalation aerosol.

Sunovion, an indirect, wholly-owned subsidiary of Dainippon Sumitomo Pharma Co., Ltd., is headquartered in Marlborough, Mass. More information about Sunovion Pharmaceuticals Inc. is available at www.sunovion.com.

DSP is a multi-billion dollar, top-ten listed pharmaceutical company in Japan with a diverse portfolio of pharmaceutical, animal health and food and specialty products. DSP aims to produce innovative pharmaceutical products in the Psychiatry & Neurology field, which has been designated as one of the two key therapeutic areas. DSP is based on the merger in 2005 between Dainippon Pharmaceutical Co., Ltd., and Sumitomo Pharmaceuticals Co., Ltd. Today, DSP has more than 7,000 employees worldwide. Additional information about DSP is available through its corporate website at www.ds-pharma.com.

STEDESA is a registered trademark of Bial – Portela & Cª, S.A., used under license.

Sunovion Pharmaceuticals Inc. is a U.S. subsidiary of Dainippon Sumitomo Pharma Co., Ltd. © 2013 Sunovion Pharmaceuticals Inc.

For a copy of this release, visit Sunovion’s web site at www.sunovion.com

Eslicarbazepine acetate (BIA 2-093) is an antiepileptic drug. It is a prodrug which is activated to eslicarbazepine (S-licarbazepine), an active metabolite of oxcarbazepine.[1]

It is being developed by Bial[2] and will be marketed as Zebinix or Exalief by Eisai Co. in Europe and as Stedesa by Sepracor[3] in America.

The European Medicines Agency (EMA) has recommended granting marketing authorization in 2009 for adjunctive therapy for partial-onset seizures, with or without secondary generalisation, in adults with epilepsy.[1] The U.S. Food and Drug Administration (FDA) announced on 2 June 2009 that the drug has been accepted for filing.[3]

Eslicarbazepine acetate is a prodrug for S(+)-licarbazepine, the major active metabolite of oxcarbazepine.[4] Its mechanism of action is therefore identical to that of oxcarbazepine. [5] There may, however, be pharmacokinetic differences. Eslicarbazepine acetate may not produce as high peak levels of (S)-(+)-licarbazepine immediately after dosing as does oxcarbazepine which could theoretically improve tolerability.

Like oxcarbazepine, eslicarbazepine may be used to treat bipolar disorder and trigeminal neuralgia.

Patents

The first European patent to protect this drug is EP 0751129. The priority of this European patent is the Portuguese patent application PT 101732.

References

  1.  Dulsat, C., Mealy, N., Castaner, R., Bolos, J. (2009). “Eslicarbazepine acetate”. Drugs of the Future 34 (3): 189. doi:10.1358/dof.2009.034.03.1352675.
  2. Community register of medicinal products for human use: Exalief
  3.  Medical News Today: Sepracor’s STEDESA (Eslicarbazepine Acetate) New Drug Application Formally Accepted For Review By The FDA
  4.  Rogawski, MA (Jun 2006). “Diverse Mechanisms of Antiepileptic Drugs in the Development Pipeline”. Epilepsy Res 69 (3): 273–294. doi:10.1016/j.eplepsyres.2006.02.004. PMC 1562526. PMID 16621450.
  5. Rogawski MA, Löscher W (July 2004). “The neurobiology of antiepileptic drugs”. Nature Reviews Neuroscience 5 (7): 553–64. doi:10.1038/nrn1430. PMID 15208697.
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