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| 8-K - ACORDA THERAPEUTICS INC | form8krepatent.htm |
EXHIBIT 99.1
CONTACT:
Jeff Macdonald
Acorda Therapeutics
(914) 347-4300 ext. 4232
jmacdonald@acorda.com
FOR IMMEDIATE RELEASE
Acorda Therapeutics Announces Allowance of Second U.S. Patent Application for AMPYRA® Covering Methods of Use for Improving Walking in Multiple Sclerosis
HAWTHORNE, NY, August 10, 2011 – Acorda Therapeutics, Inc. (Nasdaq: ACOR) today announced that the United States Patent and Trademark Office (USPTO) has allowed U.S. Patent Application No. 11/102,559 entitled “Method of Using Sustained Release Aminopyridine Compositions.” The claims of the patent application relate to methods to improve walking, walking speed, lower extremity muscle tone and lower extremity muscle strength in patients with multiple sclerosis (MS) by administering 10 mg of sustained release 4-aminopyridine (dalfampridine) twice daily. This patent application is separate from the AMPYRA® method of use patent application which was allowed by the USPTO in April 2011.
“The allowance of this patent application further strengthens our patent protection for AMPRYA and enhances our ability to continue exploring potential new uses and indications, both in MS and other diseases,” said Ron Cohen, M.D., President and CEO of Acorda Therapeutics. “The discoveries we made during our development of AMPYRA, several of which are reflected in this patent, were critical to receiving FDA approval and making this therapy available to people with MS who have walking impairment. We are pleased that the UPTO has recognized these findings as innovative and valuable contributions to medicine.”
The patent issuing from Application No. 11/102,559 is currently set to expire in April 2025, but is also eligible for patent term adjustment, to be determined by the USPTO based on the prosecution history. This patent is eligible for listing in the U.S. Food and Drug Administration (FDA) Orange Book.
Sustained release 4-aminopyridine is marketed in the United States under the trade name AMPRYA® (dalfampridine) Extended Release Tablets, 10 mg. AMPYRA is an oral medication approved by the FDA as a treatment to improve walking in patients with multiple sclerosis (MS). This was demonstrated by an increase in walking speed.
Important Safety Information
AMPYRA can cause seizures; the risk of seizures increases with increasing AMPYRA doses. AMPYRA is contraindicated in patients with a prior history of seizure. Discontinue AMPYRA use if seizure occurs.
AMPYRA is contraindicated in patients with moderate or severe renal impairment (CrCl≤50 mL/min); the risk of seizures in patients with mild renal impairment (CrCl 51–80 mL/min) is unknown, but AMPYRA plasma levels in these patients may approach those seen at a dose of 15 mg twice daily, a dose that may be associated with an increased risk of seizures; estimated CrCl should be known before initiating treatment with AMPYRA.
AMPYRA should not be taken with other forms of 4-aminopyridine (4-AP, fampridine), since the active ingredient is the same.
Urinary tract infections were reported more frequently as adverse reactions in patients receiving AMPYRA 10 mg twice daily compared to placebo.
The most common adverse events (incidence ≥2% and at a rate greater than the placebo rate) for AMPYRA in MS patients were urinary tract infection, insomnia, dizziness, headache, nausea, asthenia, back pain, balance disorder, multiple sclerosis relapse, paresthesia, nasopharyngitis, constipation, dyspepsia, and pharyngolaryngeal pain.
For full U.S. Prescribing Information and Medication Guide for AMPYRA, please visit: www.AMPYRA.com.
About AMPYRA (dalfampridine)
AMPYRA is a potassium channel blocker approved as a treatment to improve walking in patients with multiple sclerosis (MS). This was demonstrated by an increase in walking speed. AMPYRA, which was previously referred to as Fampridine-SR, is an extended release tablet formulation of dalfampridine (4-aminopyridine, 4-AP), which was previously called fampridine, and remains known by that name outside the US. In laboratory studies, dalfampridine has been found to improve impulse conduction in nerve fibers in which the insulating layer, called myelin, has been damaged. AMPYRA is being developed and commercialized in the United States by Acorda Therapeutics, and by Biogen Idec in markets outside the U.S. based on a licensing agreement with Acorda. AMPYRA is manufactured globally by Elan based on a supply agreement with Acorda.
AMPYRA is available by prescription in the United States. For more information about AMPYRA, including patient assistance and co-pay programs, healthcare professionals and people with MS can contact AMPYRA Patient Support Services at 888-881-1918.
AMPYRA Patient Support Services is available Monday through Friday, from 8:00 a.m. to 8:00 p.m. Eastern Time at 888-881-1918. For full U.S. Prescribing Information and Medication Guide, please visit: www.AMPYRA.com.
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About Acorda Therapeutics
Acorda Therapeutics is a biotechnology company developing therapies for multiple sclerosis, spinal cord injury and related nervous system disorders. The Company is commercializing and marketing AMPYRA® (dalfampridine) Extended Release Tablets, 10 mg, in the Unites States. AMPYRA is a potassium channel blocker approved as a treatment to improve walking in patients with multiple sclerosis (MS); this was demonstrated by an improvement in walking speed. AMPYRA was developed using Elan’s Matrix Drug Absorption System (MXDAS®) technology and is manufactured by Elan based on a supply agreement with Acorda.
Acorda also markets ZANAFLEX CAPSULES® (tizanidine hydrochloride), a short-acting drug for the management of spasticity. The Company's pipeline includes a number of products in development for the treatment, regeneration and repair of the spinal cord and brain.
Forward-Looking Statements
This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, regarding management's expectations, beliefs, goals, plans or prospects should be considered forward-looking. These statements are subject to risks and uncertainties that could cause actual results to differ materially, including Acorda Therapeutics' ability to successfully market and sell Ampyra in the United States and to successfully market Zanaflex Capsules; third party payors (including governmental agencies) may not reimburse for the use of Ampyra at acceptable rates or at all and may impose restrictive prior authorization requirements that limit or block prescriptions; the risk of unfavorable results from future studies of Ampyra; the occurrence of adverse safety events with our products; delays in obtaining or failure to obtain regulatory approval of Ampyra outside of the United States and our dependence on our collaboration partner Biogen Idec in connection therewith; competition; failure to protect Acorda Therapeutics’ intellectual property, to defend against the intellectual property claims of others or to obtain third party intellectual property licenses needed for the commercialization of our products; the ability to obtain additional financing to support Acorda Therapeutics' operations; and, unfavorable results from our research and development programs. These and other risks are described in greater detail in Acorda Therapeutics' filings with the Securities and Exchange Commission. Acorda Therapeutics may not actually achieve the goals or plans described in its forward-looking statements, and investors should not place undue reliance on these statements. Forward-looking statements made in this release are made only as of the date hereof, and Acorda Therapeutics disclaims any intent or obligation to update any forward-looking statements as a result of developments occurring after the date of this press release.
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