WATERTOWN, Mass.--(BUSINESS WIRE)--Panacos Pharmaceuticals, Inc. (NASDAQ:PANC), a biotechnology company dedicated to developing the next generation of antiviral therapeutic products, today announced the results of a new study indicating that HIV resistant to Protease Inhibitors (PI) may have reduced potential for the development of resistance to the HIV maturation inhibitor bevirimat in laboratory assays. The study, carried out by scientists in Dr. Eric Freed’s group at the HIV Drug Resistance Program at the National Cancer Institute, Frederick, MD, in collaboration with Panacos, was presented at the Cold Spring Harbor Laboratory’s (CSHL) Retrovirus Conference held May 22-27, 2007 in Cold Spring Harbor, NY.