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Evaluation of Tethered Capsule Endomicroscopy as a Screening Tool for Barrett's Esophagus in the Primary Care Setting

Evaluation of Tethered Capsule Endomicroscopy as a Screening Tool for Barrett's Esophagus in the Primary Care Setting

Status
Enrolling by invitation
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04561791
Enrollment
650
Registered
2020-09-24
Start date
2019-01-02
Completion date
2029-12-31
Last updated
2025-10-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Barrett Esophagus, Barretts Esophagus With Dysplasia, Barrett's Esophagus Without Dysplasia

Keywords

OCT, Optical Coherence Tomography, Endomicroscopy, Capsule Endomicroscopy, Tethered Capsule Endomicroscopy, TCE

Brief summary

The investigators will conduct a large study in the primary care clinic to determine the feasibility of using tethered capsule endomicroscopy as a screening method for Barrett's esophagus (BE) in the primary care practice environment. The investigators are also determining the prevalence of Barrett's esophagus in a primary care practice cohort at MGH.

Detailed description

The investigators have developed a tethered capsule OCT device intended as an inexpensive screening tool for BE. The capsule, which is attached to a thin, flexible tether, is reusable after being processed by a standard disinfection technique. Used without sedation, the capsule is swallowed by the participant and travels in the esophagus to the gastroesophageal junction (GEJ) via peristalsis. Cross-sectional microscopic OCT images of the entire esophagus are collected during transit. The total time needed for swallowing, imaging and retrieval does not exceed 10 minutes, with a total of 30 minutes for the procedure. The investigators have tested the feasibility and the tolerability of this new OCT screening technology in 250 procedures in healthy volunteers and participants with various esophageal diseases including BE. The procedure has been safe and well tolerated. High quality microscopic images of the esophagus have been obtained in 90% of the enrolled participants.

Interventions

DEVICETethered Capsule Endomicroscopy

Participants will be asked to swallow the TCE device. Participants may use mild numbing spray, and lubrication spray to help swallowing. Imaging will be conducted once the TCE device is past the pharynx. The TCE device will be advanced until the stomach and then slowly pull the TCE back up the esophagus. This may be repeated twice.

Sponsors

Massachusetts General Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SCREENING
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* Participants registered as patients at the Assembly Row primary care practice, MGH Broadway Primary Care - Revere, or Pentucket Medical Associates * 18 years or older * Able to give informed consent * Participants must have no food for 1 hour before the procedure

Exclusion criteria

* Participants older than 75 years. * Participants with current symptoms of dysphagia * Participants with gastro-intestinal strictures with a diameter less than 8mm, prior GI surgery (Esophageal and/or stomach surgeries), or history of intestinal Crohn's disease * Pregnancy * Participants scheduled for an urgent care visit for the following symptoms: fever, sore throat, upper respiratory infection symptoms, nausea, vomiting, diarrhea, abdominal pain, or other symptoms as per clinical staff discretion.

Design outcomes

Primary

MeasureTime frameDescription
Subject Tolerability of Tethered Capsule Endomicroscopy SwallowDuring the single study visit (avg 30.mins), and before leaving, the participant will fill out the tolerability surveyThe study team will ask the participant about their comfort level throughout the procedure. Participants will be asked to score the tolerability of the procedure using a scoring system from 0-10. 0= the least tolerable, 10= the most tolerable. The title of the scale is Subject Tolerability Questionnaire.
Prevalence of Barrett's esophagus within the single Primary Care Practice cohort.Imaging data is collected during the procedure, and analyzed within 1 year of collection.The PI will identify signs of Barrett's esophagus from the imaging data. This is a qualitative assessment performed by the PI, as this imaging technique is to novel to have standard quality grading.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026