NCT00004161 2013-04-12Fenretinide in Treating Patients With Leukoplakia of the MouthUniversity of Alabama at BirminghamPhase 2 Completed30 enrolled
NCT00003223 2012-07-24SWOG-9507, Fenretinide in Treating Patients With Neoplasia of the MouthSWOG Cancer Research NetworkPhase 2 Terminated5 enrolled