BERKELEY, Calif. – April 27, 2016 -- Dynavax Technologies Corporation (NASDAQ: DVAX) today announced that the U.S. Food and Drug Administration (FDA) will require additional time to complete its review of the Biologics License Application (BLA) for HEPLISAV-B™, Dynavax’s investigational vaccine for immunization of adults against hepatitis B infection. In a notice received from the FDA, the Prescription Drug User Fee Act (PDUFA) action date for HEPLISAV-B has been extended by three months to December 15, 2016.