Optimer Pharmaceuticals Receives Orphan Drug Designation for Fidaxomicin

Optimer Pharmaceuticals, Inc. OPTR today announced that fidaxomicin, the Company's lead product candidate, has been granted orphan drug designation from the U.S. Food and Drug Administration for the treatment of pediatric Clostridium difficile infection. This orphan drug designation applies to the active moiety and covers all formulations of fidaxomicin used to treat Clostridium difficile infection in children 16 years of age or younger.