KING OF PRUSSIA, Pa.--(BUSINESS WIRE)--Trevena, Inc., a leader in the discovery of G-protein coupled receptor (GPCR) biased ligands, announced today that Robert J. Lefkowitz, scientific co-founder of Trevena and a scientific advisory board member, has been selected to receive the 2009 BBVA Foundation Frontiers of Knowledge Award in the Biomedicine category. Dr. Lefkowitz was honored, in the words of the award jury, “for his discoveries of the seven transmembrane receptors (G protein-coupled receptors), the largest, most versatile and most therapeutically accessible receptor signaling system, and of the general mechanism of their regulation.”