MALVERN, Pa.--(BUSINESS WIRE)--April 20, 2006--Protez Pharmaceuticals, a developer of innovative antibiotics to combat drug-resistant and life-threatening infections, announced today that Clarence Young, M.D. has joined the organization as its Chief Medical Officer. Dr. Young will play a central role as Protez advances its lead compound PZ-601, a potent injectable antibiotic with a uniquely broad spectrum of activity against drug-resistant Gram-positive and many Gram-negative pathogens, as well as other compounds and projects in the company’s pipeline.