Registry to evaluate biopsy methods for esophageal conditions

CDx Study 906: The Clinical Utility of WATS3D (Wide Area Transepithelial Sampling With Computer-Assisted 3-Dimensional Analysis): A 5- Year Prospective Registry

CDx Diagnostics · NCT04312633

This study is trying to see how two different biopsy methods during endoscopy can help doctors make better treatment decisions for patients with esophageal conditions.

Quick facts

Study typeObservational
Enrollment90000 (estimated)
Ages18 Years and up
SexAll
SponsorCDx Diagnostics (industry)
Locations1 site (Bethpage, New York)
Trial IDNCT04312633 on ClinicalTrials.gov

What this trial studies

This observational study aims to create a registry to collect data on two biopsy methods used during upper endoscopy: forceps biopsies and brush biopsies. It will assess how the results from these methods influence clinical decisions regarding patient care and treatment over a five-year period. The study will also investigate the predictive value of these biopsy techniques in identifying patients at risk for Barrett's esophagus and its progression to precancerous conditions or cancer. Participants will be those undergoing standard clinical care with both biopsy methods.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 or older with heartburn, Barrett's esophagus, or those undergoing surveillance after endoscopic eradication treatments.

Not a fit: Patients who are pregnant or have unresolved substance dependencies that affect their ability to participate will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the early detection and management of Barrett's esophagus and related conditions, potentially reducing the risk of esophageal cancer.

How similar studies have performed: Other studies have shown promise in using similar biopsy techniques for esophageal conditions, suggesting potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Able to read, comprehend and complete the IRB-approved consent form
* Aged 18 or older
* Meet one of the following:
* Patients with heartburn or regurgitation undergoing a screening EGD, who undergo WATS3D sampling and forceps biopsies for suspicion of BE, or
* Patients with known BE with or without dysplasia undergoing a surveillance EGD with WATS3D biopsies and forceps biopsies, or
* Patients who have undergone endoscopic eradication (i.e. radiofrequency ablation or cryoablation) who are undergoing surveillance EGD following the establishment of complete eradication of intestinal metaplasia (CEIM)
* Only patients who undergo both forceps biopsies and WATS3D of the esophagus will be included.

Exclusion Criteria:

* Pregnancy at time of endoscopy
* Unresolved drug or alcohol dependency that will limit ability to comprehend or follow instructions related to informed consent, post-treatment instructions or follow-up guidelines
* Medical condition that will likely prohibit completion of a 5 year study

Where this trial is running

Bethpage, New York

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Barrett Esophagus, Gastro Esophageal Reflux, Esophageal Dysplasia, Esophageal Diseases

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.