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Pill-Sized camera tested for spotting hidden gut bleeds

NCT ID NCT07481591

Diagnosis Sponsor: Changhai Hospital Source: ClinicalTrials.gov ↗

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 This study
Registered, but not yet taking participants.
By invitation only
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks back at medical records of 350 people who had a capsule endoscopy (swallowing a pill-sized camera) for gastrointestinal bleeding. Researchers want to see how often the camera finds the bleeding source and if any problems occur. No new tests or visits are needed—only existing data is reviewed.

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.

Participants

About 350 people

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

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

May 2026

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.

Who is studied

Participants who underwent magnetically controlled capsule endoscopy for gastrointestinal bleeding at Changhai Hospital between January 2021 and December 2025

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Age ≥18 years old; * Obvious symptoms of gastrointestinal bleeding (such as hematemesis, melena, hematochezia, and positive fecal occult blood test); * From January 2021 to December 2025, magnetic capsule endoscopy was performed at Chang Hai Hospital Exclusion Criteria: * Known or suspected intestinal obstruction, stenosis, or fistula; * Severe asthma, swallowing disorders, or gastroparesis and other motility disorders; * History of abdominal surgery that has affected the normal structure of the digestive tract in the past; * When capsule retention occurs, the problem cannot be solved through surgical means due to subjective or objective reasons; * Implantable medical devices such as pacemakers, cochlear implants, drug infusion pumps, and nerve stimulators are installed inside the body, except for MRI compatible products; * Pregnant women; * Patients who need to undergo MRI examination before capsule endoscopy is discharged; * Suffering from severe heart and lung diseases (severe myocardial infarction, arrhythmia, heart failure, respiratory failure, etc.); * Refusing capsule endoscopy or gastroscopy examination; * Researchers believe that there are any other influencing factors that are not suitable for participants to participate in the study

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Conditions

The condition(s) this trial relates to.

Gastrointestinal Hemorrhage

As listed by the trial registrant

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

Gastrointestinal bleeding

How to take part

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

  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. 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.

More trials for these conditions

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