VANCOUVER, British Columbia, May 9, 2012 (GLOBE NEWSWIRE) -- Tekmira Pharmaceuticals Corporation (Nasdaq:TKMR) (TSX:TKM), a leading developer of RNA interference (RNAi) therapeutics, announced that it will hold a conference call and webcast on Tuesday, May 15, 2012 at 1:30 pm Pacific Time (4:30 pm Eastern Time) to provide a corporate update and report financial and operating results for the first quarter ended March 31, 2012.