EMERYVILLE, Calif.--(BUSINESS WIRE)--NovaBay Pharmaceuticals, Inc. (AMEX & TSX: NBY, http://novabaypharma.com), a biopharmaceutical company developing products for the treatment or prevention of a wide range of bacterial and viral infections, today announced that it has received clearance from the U.S. Food and Drug Administration to begin human clinical trials of its lead Aganocide compound, NVC-422, for the prevention of catheter-associated urinary tract infections (CAUTI).