NCT00204789 2019-12-16Difluoromethylornithine (DFMO) Chemoprevention of Skin Cancer in Organ Transplant RecipientsUniversity of Wisconsin, MadisonPhase 2 Completed52 enrolled
NCT00021294 2018-09-11Eflornithine With or Without Triamcinolone in Preventing Nonmelanoma Skin Cancer in Patients With Actinic KeratosisUniversity of ArizonaPhase 2 Completed