IRVINE, Calif., Aug. 3 /PRNewswire-FirstCall/ -- Spectrum Pharmaceuticals, Inc., (Nasdaq: SPPI - News) today announced Rajesh C. Shrotriya, M.D., Chairman, President and Chief Executive Officer, and other members of senior management, will host a conference call and webcast to discuss second quarter 2007 operating results and provide a development update for its pipeline of drug candidates.