Risk Factors for Barrett's Esophagus in Patients With BE, Gastroesophageal Reflux, or Gastrointestinal Bleeding

January 13, 2017 updated by: David Christopher Christiani, Massachusetts General Hospital

Molecular Epidemiology of Barrett's Esophagus

RATIONALE: A study that evaluates DNA changes and other disease-related health information in patients with Barrett's esophagus, gastroesophageal reflux, or gastrointestinal bleeding may help doctors learn more about the risk factors for Barrett's esophagus.

PURPOSE: This clinical trial is looking at DNA changes and other disease-related health information as risk factors for Barrett's esophagus in patients with Barrett's esophagus, gastroesophageal reflux, or gastrointestinal bleeding.

Study Overview

Status

Completed

Conditions

Detailed Description

OBJECTIVES:

  • Assess the role of several genetically determined factors that, in combination with CagA status, cigarette smoking, alcohol, and diet to varying degrees, result in an increased risk for Barrett's esophagus.

OUTLINE: This is a controlled study.

Patients complete questionnaires about demographics, medical history, smoking and alcohol history, current medications, frequency and chronicity of gastroesophageal reflux symptoms, and diet history.

Blood and tissue are collected and analyzed by DNA-based assays and enzyme-linked immunosorbent assay for CagA status and polymorphisms in detoxifying enzyme systems, other xenobiotic metabolism pathways (e.g., CYP1A1, CYP2E1, CYP3A4, CYP3A5, NQO, NAT-2), inflammatory gene pathways (e.g., IGF, IGFBF3), and in DNA repair genes or p53 pathways (e.g., XRCC1, p53 gene).

PROJECTED ACCRUAL: A total of 350 patients will be accrued for this study.

Study Type

Observational

Enrollment (Actual)

170

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital Cancer Center
      • Boston, Massachusetts, United States, 02115
        • Harvard School of Public Health

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients coming in for EGD

Description

DISEASE CHARACTERISTICS:

  • Undergoing elective esophagogastroduodenoscopy for any of the following reasons:

    • Surveillance of Barrett's esophagus
    • Evaluation of severe or refractory gastroesophageal reflux disease or chest pain thought to be due to reflux
    • Gastrointestinal bleeding

PATIENT CHARACTERISTICS:

  • Not pregnant

PRIOR CONCURRENT THERAPY:

  • Not specified

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Polymorphisms in detoxifying enzyme systems such as glutathione S-transferases (e.g., mu, theta, pi)
Time Frame: 2000-2013
2000-2013
Polymorphisms in other xenobiotic metabolism pathways (e.g., CYP1A1, CYP2E1, CYP3A4/5, NQO1, mEH, NAT-2)
Time Frame: 2000-2013
2000-2013
Polymorphisms in inflammatory gene pathways (e.g., MPO, MnSOD, IGF, IGFBF3, Il1-beta)
Time Frame: 2000-2013
2000-2013
Polymorphisms in DNA repair genes or the p53 pathways (e.g., ERCC2, XRCC1, p53, p73, CCND1, p21)
Time Frame: 2000-2013
2000-2013

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Massachusetts General Hospital

Collaborators

National Cancer Institute (NCI)

Investigators

  • Principal Investigator: David C. Christiani, MD, Massachusetts General Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2005

Primary Completion (Actual)

March 1, 2013

Study Completion (Actual)

March 1, 2013

Study Registration Dates

First Submitted

March 7, 2007

First Submitted That Met QC Criteria

March 7, 2007

First Posted (Estimate)

March 9, 2007

Study Record Updates

Last Update Posted (Estimate)

January 18, 2017

Last Update Submitted That Met QC Criteria

January 13, 2017

Last Verified

January 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CDR0000450146
  • MGH-1999-P-010929/13 (Other Identifier: Partners Healthcare IRB)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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