NCT00675233 2018-10-17Photodynamic Therapy Using HPPH in Treating Patients With Dysplasia, Cancer in Situ, or Invasive Cancer of the LarynxRoswell Park Cancer InstitutePhase 1 Completed29 enrolled
NCT00334997 2013-12-19Endoscopic Surgery or Radiation Therapy in Treating Patients With Stage 0, Stage I, or Stage II Laryngeal Cancer of the GlottisNational Cancer Institute (NCI)Phase 2 Completed50 enrolled
NCT00003040 2012-06-15S9709, Laser Surgery Plus Radiation Therapy in Treating Patients With Early Stage Cancer of the LarynxSWOG Cancer Research NetworkPhase 2 Terminated42 enrolled