1.	Endoscopy Every 2 Years or Only as Needed in Monitoring Patients With Barrett Esophagus. Note: The information about this trial has not been updated by the sponsor/principal investigator/lead organization. Cancer.gov cannot verify the accuracy of the information. Phase: Phase III Type: Diagnostic, Screening Status: Active Age: Over 18 Sponsor: Other Protocol IDs: NHS-GRH-HTA-05/12/01, BOSS, HTA 05/12/01, ISRCTN54190466, NCT00987857
2.	Tethered Capsule Endoscope in Screening Participants for Barrett Esophagus. Note: The information about this trial has not been updated by the sponsor/principal investigator/lead organization. Cancer.gov cannot verify the accuracy of the information. Phase: Phase II, Phase I Type: Diagnostic, Screening Status: Active Age: 18 to 80 Sponsor: NCI Protocol IDs: VAMC-WA-33141, 33141, NCT00903136
3.	Determination of the Role of Microarray for Prognosis and Prediction to Chemotherapy Sensitivity in Patients With Operable, Locally Advanced and Metastatic Oesophageal Cancer Phase: No phase specified Type: Screening, Treatment Status: Active Age: 18 and over Sponsor: Other Protocol IDs: 2110, NCT00220077
4.	Evaluation of a Miniaturized Microscope Device for the Detection of Esophageal Squamous Cell Cancer Phase: No phase specified Type: Screening Status: Active Age: 18 and over Sponsor: Other Protocol IDs: GCO# 10-0982, NCT01384708
5.	Efficacy of Endoscopy Screening on Esophageal Cancer in China (ESECC) Phase: No phase specified Type: Screening Status: Active Age: 40 to 69 Sponsor: Other Protocol IDs: 201202014, NCT01688908