Amarin Announces FDA Review Division Response on ANCHOR SPA Agreement Reinstatement Request Will Be Delayed

Amarin Corporation plc

, a biopharmaceutical company focused on the commercialization and development of therapeutics to improve cardiovascular health, announced today that the Division of Metabolism and Endocrinology Products (DMEP) within the U.S. Food and Drug Administration (FDA) notified the company today that a determination on Amarin's request for reconsideration of DMEP's October 2013 decision to rescind the ANCHOR clinical trial Special Protocol Assessment (SPA) agreement will be delayed. FDA previously notified the company that it planned to convey its decision to Amarin no later than January 15, 2014. In today's communication, DMEP provided no definitive date for its planned response. Based on dialogue with DMEP, Amarin does not expect the delay to be for a significant period of time. There can be no assurance that Amarin will be successful in its effort to reinstate the ANCHOR SPA agreement or obtain a label expansion reflecting the ANCHOR clinical trial data. Vascepa is FDA approved for use as an adjunct to diet to reduce triglyceride levels in adult patients with severe (≥500 mg/dL) hypertriglyceridemia. The ANCHOR Supplemental New Drug Application (sNDA) seeks approval of Vascepa for use as an adjunct to diet and exercise for adult patients on statin therapy with mixed dyslipidemia (one or more lipid disorder) and triglyceride levels between 200 and 499 mg/dL. About Vascepa® (icosapent ethyl) capsules Vascepa® (icosapent ethyl) capsules, known in scientific literature as AMR101, is a highly pure-EPA omega-3 prescription product in a 1 gram capsule. Indications and Usage Vascepa (icosapent ethyl) is indicated as an adjunct to diet to reduce triglyceride (TG) levels in adult patients with severe (≥500 mg/dL) hypertriglyceridemia. The effect of Vascepa on the risk for pancreatitis and cardiovascular mortality and morbidity in patients with severe hypertriglyceridemia has not been determined. Important Safety Information for Vascepa Vascepa is contraindicated in patients with known hypersensitivity (e.g., anaphylactic reaction) to Vascepa or any of its components and should be used with caution in patients with known hypersensitivity to fish and/or shellfish. The most common reported adverse reaction (incidence > 2% and greater than placebo) was arthralgia (2.3% for Vascepa, 1.0% for placebo). FULL VASCEPA PRESCRIBING INFORMATION CAN BE FOUND AT WWW.VASCEPA.COM. Vascepa is under various stages of development for potential use in indications that have not been approved by the FDA. Nothing in this press release should be construed as promoting the use of Vascepa in any indication that has not been approved by the FDA. About Amarin Amarin Corporation plc is a biopharmaceutical company focused on the commercialization and development of therapeutics to improve cardiovascular health. Amarin's product development program leverages its extensive experience in lipid science and the potential therapeutic benefits of polyunsaturated fatty acids. Vascepa® (icosapent ethyl), Amarin's first FDA approved product, is a patented, ultra pure omega-3 fatty acid product comprising not less than 96% EPA. For more information about Vascepa visit www.vascepa.com. For more information about Amarin visit www.amarincorp.com. Forward-looking statement This press release contains forward-looking statements, including statements about anticipated FDA review of the ANCHOR SPA rescission decision and the timing of such review. These forward-looking statements are not promises or guarantees and involve substantial risks and uncertainties. Among the factors that could cause actual results to differ materially from those described or projected herein include the following: uncertainties associated generally with regulatory review and approvals; the risk that SPA agreements with the FDA are not a guarantee that FDA will approve a product candidate; the risk associated with the FDA's rescinding of the ANCHOR SPA agreement; the risk that FDA will follow the recommendation of the advisory committee against ANCHOR sNDA approval; the risk that the FDA may not complete its review of the ANCHOR SPA reinstatement in the timing expected; and the risk that Amarin's interpretation of the applicable legal standards and scientific information related to the SPA agreement rescission may not be determinative or adjudicated in Amarin's favor or at all. A further list and description of these risks, uncertainties and other risks associated with an investment in Amarin can be found in Amarin's filings with the U.S. Securities and Exchange Commission, including its most recent Quarterly Report on Form 10-Q. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. Amarin undertakes no obligation to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise. Availability of other information about Amarin Investors and others should note that we communicate with our investors and the public using our company website (www.amarincorp.com), our investor relations website (http://www.amarincorp.com/investor-splash.html), including but not limited to investor presentations and investor FAQs, Securities and Exchange Commission filings, press releases, public conference calls and webcasts. The information that we post on these channels and websites could be deemed to be material information. As a result, we encourage investors, the media, and others interested in Amarin to review the information that we post on these channels, including our investor relations website, on a regular basis. This list of channels may be updated from time to time on our investor relations website and may include social media channels. 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