Aug 9 2012
Salix Pharmaceuticals, Ltd. (NASDAQ:SLXP) and Alfa Wassermann S.p.A. 
      today announced that they have entered into an exclusive agreement by 
      which Salix has licensed rights in the United States and Canada to an 
      extended intestinal release (EIR) formulation of rifaximin for 
      gastrointestinal and respiratory indications, including Crohn's disease. 
      The EIR formulation of rifaximin has been designed to release the active 
      drug following passage through the stomach and provide a homogeneous 
      distribution of rifaximin in the intestinal tract. The EIR formulation 
      of rifaximin was designed to provide an efficient delivery of rifaximin 
      and will be studied for its potential to target difficult to treat 
      diseases of the intestinal tract such as Crohn's disease.
    
    
      Financial terms of the transaction include a $10 million up-front 
      payment and a $25 million development milestone payment upon NDA 
      approval of an EIR formulation rifaximin product for Crohn's disease. 
      Salix also will pay sales-based milestones in respect of EIR formulation 
      rifaximin products for Crohn's disease, if sales targets are achieved, 
      plus royalties on product sales of all EIR formulation rifaximin 
      products. Alfa Wassermann will manufacture Salix's requirements of EIR 
      formulation rifaximin products.
    
    
      Commenting on the transaction, Carolyn Logan, President and CEO, Salix, 
      stated, "We believe gastrointestinal-specific oral antibiotic rifaximin 
      has the potential to treat numerous gastrointestinal diseases. In 
      particular, we believe the EIR formulation we are acquiring in this 
      transaction could be ideally suited to treat patients with Crohn's 
      disease. Earlier this year in the Journal of Gastroenterology, 
      promising results were published of a Phase 2 Study which indicate that 
      EIR rifaximin might be beneficial in inducing remission in patients with 
      moderately active Crohn's disease. We intend to further develop EIR 
      rifaximin with the goal of securing FDA approval to market EIR rifaximin 
      for the treatment of Crohn's disease."
    
    
      Salix is receiving the rights to EIR formulation rifaximin products as 
      part of a restructuring of long-standing arrangements between Alfa 
      Wassermann and Salix for the development and commercialization of 
      rifaximin products in the United States and Canada for gastrointestinal 
      and respiratory indications. The restructuring does not affect 
      arrangements for the rifaximin products currently approved in the Salix 
      territory, nor for any product for treatment of irritable bowel syndrome 
      that might be approved in the future. Under the new arrangements, Salix 
      has provided Alfa Wassermann with rights to obtain a license to develop 
      and commercialize, outside the United States and Canada for 
      gastrointestinal and respiratory indications, formulations of rifaximin 
      currently being developed by Salix and other new formulations of 
      rifaximin that Salix may develop in the future.
    
    
    
 
Source:
 Salix Pharmaceuticals, Ltd.