title: Istiratumab
text: # Istiratumab
  
  Istiratumab (MM-141) is an experimental monoclonal antibody for the treatment of cancer. It is a bispecific antibody targeting IGF-1R and ErbB3.
  
  It is in development by Merrimack Pharmaceuticals and was awarded orphan drug status for pancreatic cancer.
  
  