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Clinical Trial Summary

The goal of the proposed research is to investigate the molecular mechanisms of racial disparity in Barrett's esophagus (BE), the premalignant lesion of esophageal adenocarcinoma. Specifically, the investigators hypothesize that environmental factors, genetic factors, and potentially gene environment interactions play crucial roles in the observed racial disparity in developing Barrett's esophagus.

Patients are recruited through UNC hospitals prior to scheduled esophagogastroduodenoscopy (EGD). Participants complete a questionnaire, have body measurements obtained, and have blood, biopsies, and gastric aspirate collected. Participants also complete a 24 hour pH impedance test.


Clinical Trial Description

The goal of the proposed research is to investigate the molecular mechanisms of racial disparity in Barrett's esophagus, the premalignant lesion of esophageal adenocarcinoma. Specifically, the investigators hypothesize that environmental factors, genetic factors, and potentially gene environment interactions play crucial roles in the observed racial disparity in developing Barrett's esophagus.

Participants: Patients aged 18-80 presenting at the Gastrointestinal (Gl) Endoscopy Clinic at UNC-Chapel Hill for elective upper endoscopy with a primary or secondary indication of reflux symptoms.

Procedures (methods): Endoscopic biopsy, pH impedance and sampling of gastric secretions will be performed according to our standard protocol. A series of questionnaires assessing demographics, environmental exposure (e.g., smoking, drinking), markers of socioeconomic status (SES), body measurement, previous health history, and gastroesophageal reflux disease (GERD) symptomatology will be administered to our subjects. ;


Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional


Related Conditions & MeSH terms


NCT number NCT01374074
Study type Observational
Source University of North Carolina, Chapel Hill
Contact
Status Completed
Phase N/A
Start date March 2011
Completion date January 2014

See also
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