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Pill-Sized camera could spot esophagus cancer risk during routine checkups

NCT ID NCT04561791

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing a new, less invasive way to screen for Barrett's esophagus, a condition that can lead to esophageal cancer. Participants swallow a small capsule attached to a thin string, which takes pictures of the esophagus. The goal is to see if this method is comfortable and effective enough to be used in regular doctor visits, potentially catching the condition earlier.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Tethered Capsule Endomicroscopy device
What this could lead to
If successful, this could provide a simple, office-based screening tool for Barrett's esophagus, potentially catching it earlier without the need for a traditional endoscopy.
What could go wrong
This is an early feasibility study with only 650 participants, so results may not apply to everyone. The device may be uncomfortable or miss some cases, and it is not yet proven as a standard screening method.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 650 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2019

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 75 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.