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Swallow this pill: new capsule could spot internal bleeding instantly

NCT ID NCT06715293

Diagnosis Sponsor: Chinese University of Hong Kong Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests a wireless capsule called Hemopill that patients swallow to detect active bleeding in the upper digestive tract. Researchers will compare its accuracy to standard endoscopy in 193 people with signs of bleeding. If it works, the capsule could help doctors quickly decide who needs emergency treatment.

What this could mean

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

Active substance
Hemopill (wireless optical sensor capsule)
What this could lead to
If successful, this capsule could provide a fast, non-invasive way to detect upper GI bleeding, helping doctors decide who needs urgent endoscopy and who can wait.
What could go wrong
This is an early-stage study with only 193 participants. The capsule may not detect all bleeding types, and results need confirmation in larger, more diverse groups.

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 193 people

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

Started

Nov 2025

Expected to finish

Apr 2028

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 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: 1. Participants have symptoms and signs of suspected UGIB (melena, per rectal bleeding, coffee ground vomiting, prior hematemesis); 2. Participants will undergo urgent or elective OGD within 24 hours from recruitment; 3. Written consent obtained. Exclusion Criteria: 1. Contraindications for OGD (e.g. respiratory failure, suspected perforation); 2. Contraindications for capsule endoscopy (e.g. known gastrointestinal obstruction or stricture, severe dysphagia, impaired consciousness); 3. Cardiac pacemaker or implanted electromedical devices; 4. History of gastrectomy or bowel resection; 5. Ongoing fresh hematemesis requiring emergent endoscopy; 6. Unstable hemodynamics despite adequate resuscitation requiring emergent endoscopy (i.e. systolic blood pressure \<100mmHg or pulse rate \>100 per minute); 7. Advanced comorbidities (defined as American Society of Anesthesiologists grade 4 or above); 8. Pregnancy.

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Conditions

The condition(s) this trial relates to.

Gastrointestinal Hemorrhage Hematemesis Melena

As listed by the trial registrant

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

Gastrointestinal bleeding Hematemesis MELENA

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

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

    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

  • Prince of Wales Hospital

    RECRUITING

    Shatin, Hong Kong Island, Hong Kong

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