ROCKVILLE, Md., April 27 /PRNewswire-FirstCall/ -- Vanda Pharmaceuticals Inc. (Vanda) (Nasdaq:VNDA - News), a biopharmaceutical company focused on the development and commercialization of clinical-stage products for central nervous system disorders, today announced it will release results for the first quarter of 2010, on Tuesday, May 4, 2010, before the market opens. A full text copy of the release will be disseminated at that time.