- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02629081
Image-Enhanced Endoscopy (IEE) for Diagnosis of Non-Erosive Reflux Disease
Image-Enhanced Endoscopy for the Diagnosis of Non-Erosive Reflux Disease: A Prospective Case-Control Trial
When treating persistent heartburn from gastroesophageal reflux disease (GERD) that does not respond to conventional treatment (a class of medications called proton pump inhibitors), it is important to be able to distinguish between erosive GERD and non-erosive GERD (called NERD).
Currently the best method the investigators have to make this distinction is esophageal 24-hour pH and impedance testing. The test involves inserting a catheter into the esophagus through the nose and having the catheter maintained in this position for 24 hours This test is invasive, can be uncomfortable, and it is expensive and time consuming.
The investigators are hoping that image enhanced technology will identify characteristics that are found more commonly in patients with non-erosive GERD compared to controls and therefore provide evidence that may allow us to replace pH and impedance testing with the image enhanced endoscopy as the best way to diagnose NERD.
Participants will be either patients undergoing an upper endoscopy as part of their standard clinical evaluation for heartburn that does not respond to PPIs or patients undergoing standard clinical evaluation endoscopy for other reasons.
Study Overview
Detailed Description
Evaluation of the utility of image-enhanced endoscopy (IEE) in the diagnosis of non-erosive reflux disease (NERD), defined as heartburn documented to be associated with reflux on impedance-pH testing in the absence of erosions on standard white-light endoscopy (WLE) during initial endoscopy.
The investigators will examine the following characteristics for IEE sensitivity, specificity, positive predictive values, and negative predictive value: squamo-columnar junction (SCJ) vascularity, micro-erosions, SCJ pit pattern, and combinations of these characteristics. The investigators will also look at abnormal morphology of intra-papillary capillary loops (IPCLS) using the newer generation Narrow Band Light (NBI-190 endoscopes and assess the identification of their presence using I-scan. Additionally, the investigators will examine real-time diagnostic yield of reflux diseases by IEE (in vivo diagnosis of reflux disease) and analyze obtained images and results to calculate inter-observer agreement.
IEE utilized will be commonly available I-scan (Pentax) and Narrow Band Imaging (Olympus).
Consecutive patients who meet eligibility criteria and are scheduled for upper endoscopy at locations specified in this record will be invited to participate.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Connecticut
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New Haven, Connecticut, United States, 06510
- Yale New Haven Hospital
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West Haven, Connecticut, United States, 06516
- VACHS
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients scheduled for an upper endoscopy for anemia, weight loss, diarrhea, or screening for esophageal varices without heartburn or other GERD symptoms and patients scheduled for upper endoscopy for heartburn not resolving with PPIs
Exclusion Criteria:
- Patients who have evidence of erosive esophagitis under white-light endoscopy
- Patients with Barrett's esophagus or esophageal malignancy on prior or current endoscopy
- Patients unable or unwilling to sign informed consent
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Controls & Cases
Controls (participants without heartburn or other GERD symptoms undergoing standard upper endoscopy for the following: anemia, weight loss, diarrhea, and screening for esophageal varices) and Cases (participants with heartburn or other GERD symptoms undergoing standard endoscopy for heartburn or other GERD symptoms.)
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All interventions are standard of care and both controls and cases will be treated the same.
IEE results from controls and cases will be compared.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Squamo-columnar junction vascularity (graded as present or absent by endoscopist using IEE)
Time Frame: Once--at endoscopy
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Once--at endoscopy
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Presence or absence of micro-erosions identified by endoscopist using IEE
Time Frame: Once at endoscopy
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Once at endoscopy
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Squamo-columnar junction pit pattern (graded as round or non-round by endoscopist using IEE)
Time Frame: Once at endoscopy
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Once at endoscopy
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Loren Laine, MD, Yale University, VACHS
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- HIC1503015486
- 0005 (VACHS)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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