CORVALLIS, OR--(Marketwire - August 07, 2008) - AVI BioPharma, Inc. (NASDAQ: AVII), a developer of RNA-based drugs, today announced that the Company will hold a conference call to report its second quarter 2008 financial results on Monday, August 11, 2008, at 9:30 a.m. Eastern time (6:30 a.m. Pacific time).