MOUNTAIN VIEW, Calif., July 22, 2008 (PRIME NEWSWIRE) -- Pharsight Corporation (Nasdaq:PHST), a leading provider of software, strategic consulting, and regulatory services for optimizing clinical drug development, today announced that two members of its scientific consulting staff have been invited to speak to members of the biotechnology and pharmaceutical industries attending the 9th World Congress on Clinical Pharmacology and Therapeutics (CPT). The CPT Congress will be held at the Quebec City Convention Center in Quebec City, Canada, from July 27-August 1, 2008.