← Eichor
Study identifier: NCT05642338 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

A Multicenter Prospective Cohort Study Comparing Random Biopsies Versus Wide-Area Transepithelial Brush-Sampling (WATS) for Surveillance of Barrett's Esophagus, the WATS-EURO2 Study

Condition: Barrett Esophagus · Esophageal Adenocarcinoma · Diagnosis  ·  Sponsor: Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

PhaseN/A
Planned participants416
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The investigators aim to study the rate of developing a biopsy-based diagnosis of high-grade dysplasia (HGD) and EAC in BE patients in a prospective cohort of 208 BE patients at high risk of progression (i.e. after endoscopic removal of visible lesions containing HGD/EAC and/or a diagnosis of low-grade dysplasia (LGD)) as well as in 208 BE patients with a nondysplastic BE (NDBE) undergoing standard BE surveillance. In these patients the investigators will combine biopsy sampling with WATS at baseline and all follow-up endoscopies during a 3- year follow-up period. This will allow us to study the natural history of WATS-positive-biopsynegative- cases and of WATS-specific outcomes such as basal-crypt dysplasia. The study also allows us to collect specimens for future biomarker studies that may help to predict progression to HGD/EAC in the absence of morphological features of dysplasia.

This description comes directly from the study's public registry record.

Talk to the study team

Pim Stougie  ·  +31617741850  ·  l.c.duits@amsterdamumc.nl

Lucas C Duits, MD, PhD  ·  l.c.duits@amsterdamumc.nl

Always discuss trial participation with your own doctor first.

Locations (1)

Amsterdam University Medical Centre, loc. VUmcAmsterdam, North Holland, NetherlandsRecruiting

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT05642338