X0303 4 2008-07-30 1 0001260990 GTX INC /DE/ GTXI 0001314913 Barnette K Gary 3 N. DUNLAP STREET 3RD FLOOR MEMPHIS TN 38163 0 1 0 0 Vice President As of July 30, 2008, the reporting person ceased to be a person subject to the filing requirements of Section 16 of the Exchange Act. /s/ Henry P. Doggrell, by Power of Attorney 2008-08-04