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8-K - FORM 8-K - SALIX PHARMACEUTICALS LTDd8k.htm

Exhibit 99.1

FOR IMMEDIATE RELEASE

 

Contact:   

Adam C. Derbyshire

Executive Vice President and

Chief Financial Officer

(919) 862-1000

  

G. Michael Freeman

Associate Vice President, Investor

Relations and Corporate

Communications

(919) 862-1000

  

SALIX PHARMACEUTICALS REVIEWS DATA PRESENTATIONS AT

AMERICAN PAIN SOCIETY ANNUAL MEETING

RALEIGH, NC, May 20, 2011 - Salix Pharmaceuticals, Ltd. (NASDAQ:SLXP) today announced findings from two analyses of a Phase 3 open-label study of RELISTOR® (methylnaltrexone bromide) presented at the 30th Annual Scientific Meeting of the American Pain Society. The meeting is being held in Austin, TX, on May 19-21, 2011.

RELISTOR is a peripherally acting mu-opioid receptor antagonist that counteracts the constipating effects of opioid pain medications in the gastrointestinal tract without affecting their ability to relieve pain. The FDA approved RELISTOR Subcutaneous Injection in 2008 for the treatment of opioid-induced constipation (OIC) in patients with advanced illness who are receiving palliative care, when response to laxative therapy has not been sufficient. Use of RELISTOR beyond 4 months has not been studied. Currently we are developing RELISTOR for the potential treatment of OIC in patients with chronic nonmalignant pain. Salix intends to submit a supplemental New Drug Application (sNDA) for this indication in mid-2011.

The purpose of the Phase 3, multicenter, open-label study was to determine the long-term safety, tolerability and efficacy of subcutaneous methylnaltrexone in patients with chronic nonmalignant pain. The study included 1,034 patients on stable doses of opioids (equal to or greater than one month) who demonstrated constipation over the month prior to screening. Patients underwent a 14-day screening period. Eligible patients received methylnaltrexone bromide subcutaneous injection (12 mg) at least once weekly and up to once daily for 48 weeks. Use of routine laxatives was permitted for the duration of the study. Efficacy end points included: 1) weekly bowel movement (BM) frequency compared with baseline, 2) percentage of injections resulting in a BM within 4 hours and 3) BM scales, including Bristol Stool Form, Straining and Complete Evacuation Scales.


RELISTOR Presentations

Poster #376: L. Webster et al. The Long-Term Efficacy of Subcutaneous Methylnaltrexone for the Treatment of Opioid-Induced Constipation in Patients with Chronic Nonmalignant Pain

Poster#378: L. Webster et al. Long-Term Safety of Subcutaneous Methylnaltrexone for the Treatment of Opioid-Induced Constipation in Patients with Chronic Nonmalignant Pain

About Opioids, Constipation and RELISTOR (methylnaltrexone bromide)

Opioid analgesics are frequently prescribed to manage pain in patients with advanced illness. Constipation commonly occurs in palliative-care patients receiving opioid therapy for pain. RELISTOR is the first approved medication that specifically targets the underlying cause of OIC in these patients. Opioids relieve pain by specifically interacting with mu-opioid receptors within the brain and spinal cord. However, opioids also interact with mu-opioid receptors found outside the central nervous system, such as those within the gastrointestinal tract, resulting in constipation that can be debilitating. RELISTOR (methylnaltrexone bromide) is a peripherally acting mu-opioid receptor antagonist that decreases the constipating effects of opioid pain medications without affecting their ability to relieve pain. RELISTOR selectively displaces opioids from the mu-opioid receptors outside the CNS, including those located in the gastrointestinal tract, thereby decreasing their constipating effects. Because of its chemical structure, RELISTOR does not affect the opioid-mediated analgesic effects on the CNS.

About RELISTOR

RELISTOR Subcutaneous Injection is approved in the United States for the treatment of OIC in patients with advanced illness who are receiving palliative care, when response to laxative therapy has not been sufficient. The use of RELISTOR beyond four months has not been studied. The drug is also approved for use in over 50 countries worldwide, including the European Union,


Canada, Australia and Brazil. In the 27 member states of the E.U., as well as Iceland, Norway and Liechtenstein, RELISTOR is approved for the treatment of opioid-induced constipation in advanced illness patients who are receiving palliative care when response to usual laxative therapy has not been sufficient. In Canada, the drug is approved for the treatment of opioid-induced constipation in patients with advanced illness, receiving palliative care. When response to laxatives has been insufficient, RELISTOR should be used as an adjunct therapy to induce a prompt bowel movement. Applications in additional countries are pending. RELISTOR is under license to Salix from Progenics Pharmaceuticals, Inc.

Important Safety Information for RELISTOR

RELISTOR is indicated for the treatment of opioid-induced constipation (OIC) in patients with advanced illness who are receiving palliative care, when response to laxative therapy has not been sufficient. Use of RELISTOR beyond four months has not been studied.

RELISTOR is contraindicated in patients with known or suspected mechanical gastrointestinal obstruction. If severe or persistent diarrhea occurs during treatment, advise patients to discontinue therapy with RELISTOR and consult their physician. Use of RELISTOR has not been studied in patients with peritoneal catheters.

Safety and efficacy of RELISTOR have not been established in pediatric patients.

Rare cases of gastrointestinal (GI) perforation have been reported in advanced illness patients with conditions that may be associated with localized or diffuse reduction of structural integrity in the wall of the GI tract (i.e., cancer, peptic ulcer, Ogilvie’s syndrome). Perforations have involved varying regions of the GI tract (e.g., stomach, duodenum, colon).

Use RELISTOR with caution in patients with known or suspected lesions of the GI tract. Advise patients to discontinue therapy with RELISTOR and promptly notify their physician if they develop severe, persistent, and/or worsening abdominal symptoms.


The most common adverse reactions reported with RELISTOR compared with placebo in clinical trials were abdominal pain (28.5% vs 9.8%), flatulence (13.3% vs 5.7%), nausea (11.5% vs 4.9%), dizziness (7.3% vs 2.4%), diarrhea (5.5% vs 2.4%), and hyperhydrosis (6.7% vs 6.5%).

RELISTOR full Prescribing Information for the U.S. is available at www.relistor.com.

About Salix

Salix Pharmaceuticals, Ltd., headquartered in Raleigh, North Carolina, develops and markets prescription pharmaceutical products for the prevention and treatment of gastrointestinal diseases. Salix’s strategy is to in-license late-stage or marketed proprietary therapeutic drugs, complete any required development and regulatory submission of these products, and market them through the Company’s gastroenterology specialty sales and marketing team.

Salix also markets XIFAXAN® (rifaximin) tablets 200 mg and 550 mg, MOVIPREP® (PEG 3350, sodium sulfate, sodium chloride, potassium chloride, sodium ascorbate and ascorbic acid for oral solution), OSMOPREP® (sodium phosphate monobasic monohydrate, USP and sodium phosphate dibasic anhydrous, USP) Tablets, VISICOL® (sodium phosphate monobasic monohydrate, USP, and sodium phosphate dibasic anhydrous, USP) Tablets, APRISO™ (mesalamine) extended-release capsules 0.375 g, METOZOLV® ODT (metoclopramide HCl), RELISTOR® (methylnaltrexone bromide) Subcutaneous Injection, PEPCID® (famotidine) for Oral Suspension, Oral Suspension DIURIL® (Chlorothiazide), AZASAN® (Azathioprine) Tablets, USP, 75/100 mg, ANUSOL-HC® 2.5% (Hydrocortisone Cream, USP), ANUSOL-HC® 25 mg Suppository (Hydrocortisone Acetate), PROCTOCORT® Cream (Hydrocortisone Cream, USP) 1% and PROCTOCORT® Suppository (Hydrocortisone Acetate Rectal Suppositories) 30 mg. Crofelemer, budesonide foam, RELISTOR®, Lumacan® and rifaximin for additional indications are under development.


For full prescribing information and important safety information on Salix products, including BOXED WARNINGS for VISICOL, OSMOPREP and METOZOLV, please visit www.salix.com where the Company promptly posts press releases, SEC filings and other important information or contact the Company at 919 862-1000.

Salix trades on the NASDAQ Global Select Market under the ticker symbol “SLXP”.

For more information, please visit our Website at www.salix.com or contact the Company at 919-862-1000. Follow us on Twitter (@SalixPharma) and Facebook (www.facebook.com/SalixPharma). Information on our web site is not incorporated in our SEC filings.

Please Note: The materials provided herein contain projections and other forward–looking statements regarding future events. Such statements are just predictions and are subject to risks and uncertainties that could cause the actual events or results to differ materially. These risks and uncertainties include, among others: the cost, timing and results of clinical trials and other development activities involving pharmaceutical products; our reliance on a limited number of products, particularly XIFAXAN; generic and other competition in an increasingly global industry; litigation and the possible impairment of, or inability to obtain, intellectual property rights and the costs of obtaining such rights from third parties in an increasingly global industry; the unpredictability of the duration and results of regulatory review of New Drug Applications and Investigational NDAs; market acceptance for approved products; revenue recognition and other critical accounting policies; and the need to acquire new products. The reader is referred to the documents that the Company files from time to time with the Securities and Exchange Commission.