DUBLIN, Ohio--(BUSINESS WIRE)--Navidea Biopharmaceuticals, Inc. (NYSE Amex: NAVB) today announced that yesterday it received notification from the United States Food and Drug Administration (FDA) that the Prescription Drug User Fee Act (PDUFA) date for 99m-Tc-Tilmanocept (Lymphoseek®), has been modified to September 10, 2012, a 90-day extension from the initial PDUFA date of June 10th. Lymphoseek is an investigational, proprietary radioactive tracing agent for lymphatic mapping and lymphoscintigraphy.
