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Amarin Announces Results from Exploratory Phase 2a Study of EN101 in Myasthenia Gravis.



Amends Ester Neurosciences Acquisition Agreement

DUBLIN -- Amarin Corporation plc (NASDAQ NASDAQ
 in full National Association of Securities Dealers Automated Quotations

U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on
:AMRN) today announced encouraging top line results from an exploratory Phase 2a multi-centre, dose-ranging, cross-over clinical study of EN101 in patients with myasthenia gravis myasthenia gravis (mīəsthē`nēə grä`vĭs), chronic disorder of the muscles characterized by weakness and a tendency to tire easily. , a chronic autoimmune disease characterized by muscle weakness which can be life-threatening.

Thomas Lynch, Chairman and Chief Executive Officer of Amarin, commented "We are pleased to announce this update regarding the EN101 program. EN101 is one of our CNS See Continuous net settlement.

CNS

See continuous net settlement (CNS).
 assets that we plan to partner as a consequence of the Company's recent focusing of development efforts on cardiovascular disease programs. We expect this data will be of interest to any future potential partners."

Dr. Declan Doogan, Head of Research and Development of Amarin, added "The results from this exploratory Phase 2a study support the further clinical evaluation of EN101 in myasthenia gravis."

The primary objective of the exploratory study, for which interim results had previously been announced, was to assess the efficacy and safety of three doses of EN101 each given orally once daily for one week in patients with myasthenia gravis. The final results of the study indicate that 10mg, 20mg and 40mg of EN101 resulted in a statistically significant reduction in Quantitative Myasthenia Gravis (QMG QMG
abbr.
quartermaster general
) score from baseline of 11.8% (p=0.001), 16.8% (p<0.001) and 20.3% (p<0.001), respectively. Importantly, EN101 was also shown to be safe and well tolerated.

The 31-patient study was performed in six centers in the U.K., Israel and Serbia. Each dose of EN101 was administered to patients for one week and was separated by a one week wash-out on pyridostigmine pyridostigmine /pyr·i·do·stig·mine/ (pir?i-do-stig´men) a cholinesterase inhibitor, used as the bromide salt in the treatment of myasthenia gravis and as an antidote to nondepolarizing neuromuscular blocking agents. , often the first-line treatment for myasthenia gravis. Efficacy was assessed by evaluating changes in the QMG score, an established questionnaire that evaluates signs and symptoms of myasthenia gravis.

Amarin also announced that it has amended the Ester Neurosciences Limited ("Ester") acquisition agreement entered into in December 2007. The amendments, which reflect Amarin's intention to seek a partner for EN101, provide for the release of Amarin from research and development diligence obligations contained in the original agreement, with remaining contingent milestones only being payable from fees and milestones received from any future partners. As part of the amended agreement, Amarin will issue 1,315,789 ordinary shares to the former Ester shareholders.

About EN101 EN101 is an orally delivered oligonucleotide with complementary mechanisms of action. As an antisense antisense, DNA or RNA manipulated in a laboratory so that its components (nucleotides) form a complementary copy of normal, or "sense," messenger RNA (mRNA; see nucleic acid).  agent it preferentially suppresses the "read-through" or "R" isoform (AChE-R) of acetylcholinesterase acetylcholinesterase /ac·e·tyl·cho·lin·es·ter·ase/ (AChE) (-ko?li-nes´ter-as) an enzyme present in the central nervous system, particularly in nervous tissue, muscle, and red cells, that catalyzes the hydrolysis of acetylcholine to  (AChE). This is believed to enhance neuromuscular functioning while avoiding the negative cholinergic cholinergic /cho·lin·er·gic/ (ko?lin-er´jik)
1. parasympathomimetic; stimulated, activated, or transmitted by choline (acetylcholine); said of the sympathetic and parasympathetic nerve fibers that liberate acetylcholine at a
 effects currently observed with conventional, non-selective acetylcholinesterase inhibitors. EN101 also acts on re-balancing innate immunity features, which are often impaired by conventional acetylcholinesterase inhibitors. By elevating acetylcholine acetylcholine (əsēt'əlkō`lēn), a small organic molecule liberated at nerve endings as a neurotransmitter. It is particularly important in the stimulation of muscle tissue.  levels EN101 further reduces circulating pro-inflammatory cytokines Cytokines
Chemicals made by the cells that act on other cells to stimulate or inhibit their function. Cytokines that stimulate growth are called "growth factors.
 through the "cholinergic anti-inflammatory reflex".

EN101 and its underlying technology are protected by a number of issued patents and pending applications in a number of territories worldwide, including the U.S. and Europe. EN101 has been granted orphan drug designation for the treatment of myasthenia gravis by the U.S. Food and Drug Administration and by the European Medicines Agency The European Medicines Agency (EMEA) is a European agency for the evaluation of medicinal products. Until 2004, the European Medicines Agency was known as The European Agency for the Evaluation of Medicinal Products.

Roughly parallel to the U.S.
.

About Myasthenia Gravis Myasthenia gravis (MG) is the most common primary disorder of neuromuscular transmission. It is a chronic autoimmune neuromuscular disease characterized by varying degrees of weakness of the skeletal (voluntary) muscles of the body. About 10% of MG patients develop a life-threatening weakness of the respiratory muscles needed for breathing, a condition called myasthenic crisis. MG occurs in all races, both genders and at all ages. According to the Myasthenia Gravis Foundation of America, the prevalence of MG is estimated at 14 to 20 per 100,000 population, with up to 60,000 cases in the U.S.

About Amarin Amarin is a late-stage biopharmaceutical company with a focus on cardiovascular disease. The Company's lead product candidate is AMR (1) (Adaptive Multi-Rate) A variable rate speech codec selected by the 3GPP for the 3G evolution of the GSM cellphone system (WCDMA). Using the Algebraic CELP (ACELP) compression technology, AMR provides toll quality sound at transmission rates from 4.75 to 12. 101, a prescription grade Omega-3 fatty acid omega-3 fatty acid
n.
Any of various polyunsaturated fatty acids that are found primarily in fish, fish oils, vegetable oils, and leafy green vegetables, and that seem to reduce the risk of stroke and heart attack.
 comprising not less than 96% ultra-pure ethyl ethyl (ĕth`əl), CH3CH2, organic free radical or alkyl group derived from ethane by removing one hydrogen atom.  eicosapentaenoic acid (EPA EPA eicosapentaenoic acid.

EPA
abbr.
eicosapentaenoic acid


EPA,
n.pr See acid, eicosapentaenoic.

EPA,
n.
), which is entering Phase 3 clinical trials for the treatment of hypertriglyceridemia under a Special Protocol Assessment (SPA) agreement with the U.S. Food and Drug Administration (FDA FDA
abbr.
Food and Drug Administration


FDA,
n.pr See Food and Drug Administration.

FDA,
n.pr the abbreviation for the Food and Drug Administration.
). Amarin recently established its research and development headquarters in Mystic, Connecticut with an experienced research and development team. Amarin's programs capitalize on its lipid science expertise and the known therapeutic benefits of Omega-3 fatty acids This is a list of omega-3 fatty acids.

Common name Lipid name Chemical name
α-Linolenic acid (ALA) 18:3 (n-3) octadeca-9,12,15-trienoic acid
Stearidonic acid 18:4 (n-3) octadeca-6,9,12,15-tetraenoic acid
 in treating cardiovascular disease. The pipeline also includes proprietary next-generation lipid candidates, currently at preclinical stages of development.

Amarin has a range of clinical and preclinical stage compounds to treat central nervous system (CNS) disorders, including Huntington's disease, myasthenia gravis, Parkinson's disease and epilepsy, all of which are available for partnering. Amarin is listed in the U.S. on the NASDAQ Capital Market Originally called the NASDAQ Small Cap Market, NASDAQ announced a name change to the NASDAQ Capital Market on September 27, 2005. [1]

The NASDAQ Capital Market exists for securities of smaller, less-capitalized companies (small caps) that do not qualify for
 ("AMRN"). For more information please visit www.amarincorp.com.

Disclosure Notice The information contained in this document is as of June 10, 2009. Amarin assumes no obligation to update any forward-looking statements contained in this document as a result of new information or future events or developments. This document contains forward-looking statements about Amarin's results of operations, business prospects and products in research that involve substantial risks and uncertainties. You can identify these statements by the fact that they use words such as "will", "anticipate", "estimate", "expect", "project", "forecast", "intend", "plan", "believe" and other words and terms of similar meaning in connection with any discussion of future operating or financial performance or events. Among the factors that could cause actual results to differ materially from those described or projected herein are the following: Amarin's ability to maintain sufficient cash and other liquid resources to meet its operating and debt service requirements; the success of Amarin's research and development activities; decisions by regulatory authorities regarding whether and when to approve Amarin's drug applications, as well as their decisions regarding labeling and other matters that could affect the commercial potential of Amarin's products; the speed with which regulatory authorizations, pricing approvals and product launches may be achieved; whether and when Amarin will be able to enter into and consummate strategic collaborations with respect to its products or product candidates on acceptable terms; the success with which developed products may be commercialized; Amarin's ability to protect its patents and other intellectual property; and claims and concerns that may arise regarding the safety or efficacy of Amarin's products or product candidates. A further list and description of these risks, uncertainties and other matters can be found in Amarin's Form 20-F for the fiscal year ended December 31, 2007, filed with the SEC on May 19, 2008 and Amarin's Form 20-F/A for the fiscal year ended December 31, 2007 filed with the SEC on September 24, 2008.
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Publication:Business Wire
Article Type:Clinical report
Date:Jun 10, 2009
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