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
NCT01216800 2010-10-07Intensity-Modulated Radiation Therapy or 3-Dimensional Conformal Radiation Therapy in Decreasing Hearing Loss in Patients Who Have Undergone Surgery for Parotid TumorsNational Cancer Institute (NCI)Phase 3 Unknown84 enrolled