Salix Pharmaceuticals Reports 2Q2012 Results

“On February 21, 2012 the Company initiated TARGET 3 - a Phase 3 study to evaluate the efficacy and safety of repeat treatment with rifaximin 550 mg TID (three times daily) for 14 days in subjects with irritable bowel syndrome with diarrhea who respond to an initial treatment course with rifaximin 550 mg TID for 14 days. During the second quarter we continued our efforts to enroll a number of subjects sufficient to randomize approximately 800 subjects (400 subjects per treatment group) into the double blind retreatment phase of the study. The Company continues to anticipate that from study initiation it could take approximately 24 months to complete the trial, submit a response to the Complete Response Letter and secure a FDA decision regarding approvability.

“During the second quarter of 2012 the Company also continued to make progress in the development of oral RELISTOR, budesonide foam, the next generation formulation of rifaximin for potential additional indications and Lumacan. Detailed results of the 804-patient Phase 3 trial to evaluate the efficacy and safety of oral methylnaltrexone bromide for the treatment of opioid–induced constipation (OIC) in subjects with chronic, non–cancer pain were presented at Digestive Disease Week on May 22, 2012.

“We anticipate completing patient enrollment in our two budesonide foam Phase 3 trials by the end of 2012. In December 2011 we initiated a pharmacokinetic study to assist in the characterization of three prototype tablet formulations of rifaximin. The study progressed during the second quarter of 2012 and currently we intend to move forward with a suitable next generation rifaximin candidate or candidates with the initiation of a clinical trial by the end of 2012. Work continued to progress on the development of Lumacan formulation prototypes. We intend to test various formulation prototypes in the clinic during 2012. We believe that Lumacan, if approved, has the potential to significantly improve the earlier detection and diagnosis of colon cancer.

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