SAN FRANCISCO, July 29 /PRNewswire-FirstCall/ -- Medivation, Inc. (Nasdaq: MDVN - News) today announced that it will host a teleconference and webcast with management to discuss second quarter 2009 financial results and provide a general business update on Wednesday, August 5, 2009, at 4:30 p.m. Eastern Time. A press release for the second quarter ended June 30, 2009 will be released after markets close on August 5, 2009.