NCT03121313 2019-02-12Maintenance Tegafur-uracil in Resected Oral Cavity Cancer With ECS+Chang Gung Memorial HospitalPhase 2 Unknown68 enrolled
NCT00336947 2013-05-15S-1 or Tegafur-Uracil in Treating Patients With Previously Treated Stage III or Stage IV Head and Neck CancerNational Cancer Institute (NCI)Phase 3 Unknown500 enrolled