“We believe that this collaboration 
      brings together two leading companies with unique and complementary 
      technology platforms which could potentially lead to the discovery of 
      breakthrough DsiRNA-based therapies.”
    
      - 
        Ipsen's expertise in peptide engineering will be combined with 
        Dicerna's exclusive Dicer Substrate Technology to develop innovative 
        molecules as potential therapeutic agents
      
 
    
    
      Dicerna Pharmaceuticals, Inc., (Dicerna) a second generation RNA 
      interference (RNAi) company, and Ipsen (Paris:IPN), a global 
      biotechnology specialty care group, announced today that the two 
      companies have entered into an exclusive research collaboration 
      agreement to leverage their expertise in Dicer Substrate siRNA (DsiRNA) 
      research and peptide engineering. The companies will develop novel 
      conjugates of Dicerna's DsiRNA molecules and Ipsen's peptide targeting 
      vectors in the therapeutic areas of oncology and endocrinology.
    
    
      RNAi is a key cellular mechanism regulating gene expression in both 
      normal and disease processes. Based on gene sequence rather than protein 
      structure, RNAi therapeutics have the potential to silence 
      disease-causing genes using small synthetic RNA molecules, which may 
      enable the development of new therapies for many acute and chronic 
      diseases. The resulting target gene knockdown reduces gene expression in 
      a way that is highly selective and specific.
    
    
      "We are very excited to partner with Ipsen on this exclusive research 
      collaboration. This agreement further advances our discovery efforts and 
      provides us with the opportunity to develop Dicer Substrate siRNA 
      therapies and targeted drug delivery systems while working with a 
      partner who brings a unique peptide technology platform to the 
      collaboration," said James C. Jenson, Ph.D., Chief Executive Officer 
      and co-founder of Dicerna. "This is the second significant 
      partnership with a major biopharmaceutical company that we have entered 
      into in 2010, further validating our next generation Dicer Substrate 
      Technology and our unique ability to generate a greater number of more 
      potent gene silencing molecules."
    
    
      "Combining Dicerna's Dicer Substrate Technology with Ipsen's innovative 
      peptide technology that can target specific cell types of interest and 
      mediate intracellular delivery of DsiRNA, will enable us to jointly 
      explore a number of therapeutic programs in the areas of oncology and 
      endocrinology," said Claude Bertrand, Executive Vice-President, Chief 
      Scientific Officer, Ipsen Group. "We believe that this collaboration 
      brings together two leading companies with unique and complementary 
      technology platforms which could potentially lead to the discovery of 
      breakthrough DsiRNA-based therapies."