MEMPHIS, Tenn.--(BUSINESS WIRE)--GTx, Inc. (Nasdaq: GTXI), today announced that following a planned safety review, an independent Data Safety Monitoring Board (DSMB) has recommended that the company continue as planned the pivotal Phase III clinical trial evaluating toremifene 20 mg for the prevention of prostate cancer in men with high grade prostatic intraepithelial neoplasia (PIN). The DSMB meets every six months to review unblinded safety data from the toremifene Phase III clinical trials.