Shire’s Eye Drug Granted FDA Priority ReviewBy
Shire plc reports that the US Food and Drug Administration (FDA) has accepted for filing the new drug application (NDA) for lifitegrast and granted a Priority Review designation. Lifitegrast is an investigational treatment for dry eye disease in adults and, if approved, has the potential to be the first treatment indicated to address both signs and symptoms of the disease. The FDA is expected to provide a decision on October 25, 2015, based on the Prescription Drug User Fee Act V action date.
The FDA grants Priority Review designation to drugs that have the potential to provide significant improvements in the safety or effectiveness for the treatment, diagnosis or prevention of a serious disease. Drugs with Priority Review designation have an accelerated review target of eight months, instead of the standard of 12 months.
Lifitegrast is a novel small-molecule integrin inhibitor. It binds to the integrin LFA-1 (lymphocyte function-associated antigen-1), a cell surface protein found on leukocytes, and blocks the interaction of LFA-1 with its cognate ligand ICAM-1 (intercellular adhesion molecule-1). ICAM-1 is over-expressed in corneal and conjunctival tissues in dry eye disease. LFA-1/ICAM-1 interaction contributes to the formation of immunological synapses resulting in T-cell activation and migration to target tissues.