MEMPHIS, Tenn.--(BUSINESS WIRE)--GTx, Inc. (NASDAQ: GTXI) today announced that toremifene citrate 80 mg reduced hot flashes in men with prostate cancer on androgen deprivation therapy (ADT), a key secondary endpoint of the Phase III clinical trial evaluating toremifene citrate 80 mg for the treatment of multiple side effects of ADT for advanced prostate cancer.