Study to Evaluate EnteroTracker® as a Sampling Method to Screen for Barrett's Esophagus/Esophageal Cancer

This study seeks to determine the ability of a minimally invasive capsule-string device, the EnteroTracker®, to capture biomarkers associated with Barrett's Esophagus (BE) and Esophageal Adenocarcinoma (EAC). Identification of biomarkers in samples will support development of this simple-to-use, scalable, method for early screening of EAC, a cancer that accounts for the majority of esophageal cancers in the United States. In this study, the investigators plan to capture esophageal luminal content using the EnteroTracker® from patients with confirmed BE and/or EAC (test group) and healthy adults (control group). Samples will then be analyzed for series of biomarkers associated with BE and/or EAC. The investigators will test the hypothesis that the EnteroTracker® is able to capture biomarkers of interest in subjects with BE and EAC compared to healthy controls. To address this hypothesis, the investigators propose a pilot study with the following two specific aims. Evaluate the ability and tolerability of the EnteroTracker® to capture esophageal mucosal samples in adults with BE and/or EAC as well as controls and determine the ability of the EnteroTracker®-obtained BE/EAC biomarkers to distinguish between BE and/or EAC from control subjects.