STORY UPDATE
LEXINGTON, Mass.—August 14, 2007—EPIX Pharmaceuticals announced it has achieved an initial milestone in its agreement with GSK to identify lead candidates in three discovery-stage programs. The milestone will trigger a $3-million payment, which EPIX expects to occur within the next month. Says Dr. Hugh Cowley, head of GSK's CEEDD: "In addition to the PRX-03140 program in Alzheimer's disease, we are moving forward with EPIX to discover and develop GPCR candidates for the treatment of a variety of diseases. This marks an initial milestone in what we expect will be a long and productive collaboration."









