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ClinicalTrials.gov

Key Record Dates

ClinicalTrials.gov Identifier: NCT00003856
Brief Title: Photodynamic Therapy in Treating Patients With Recurrent, Refractory, or Second Primary Head and Neck Cancer That Cannot Be Treated With Surgery or Radiation Therapy

First Submitted : November 1, 1999
First Submitted that Met QC Criteria : June 2, 2004
First Posted : June 3, 2004 (Estimate)

Last Update Submitted that Met QC Criteria : December 18, 2013
Last Update Posted : December 19, 2013 (Estimate)