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New nasal camera could peek inside your gut without surgery

NCT ID NCT04984447

Knowledge-focused Sponsor: Massachusetts General 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

Researchers at Massachusetts General Hospital are testing a new device that goes through the nose to take pictures of the small intestine. The study includes 30 healthy adults and pregnant women in their second trimester. The goal is to see if people can tolerate the device and if it can clearly show gut features, which might lead to easier diagnosis of digestive diseases.

What this could mean

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

Active substance
TNIB Catheter (imaging device)
What this could lead to
If successful, this could lead to a less invasive way to diagnose gastrointestinal diseases.
What could go wrong
This is a very early feasibility study with only 30 participants, so results may not apply broadly. The device may cause discomfort or fail to visualize features.

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 30 people

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

Started

Sep 2017

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 60 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: * Healthy participants * Participants who are in their 2nd trimester of pregnancy * Participant must be 18-60 years of age * Participant must be able to consent to the procedure. * Participant must fast (no solid food) for at least 8 hours and have no liquids within 2 hours prior to the procedure. Exclusion Criteria: * Participants with a history of upper respiratory disease or surgery * Pregnant women with high-risk pregnancies such as history of: hyperemesis gravidarum, HIV, severe anemia or any other high-risk pregnancy conditions at the discretion of the subject's physician and the PI * Participants with a history of upper gastrointestinal surgery * Pregnant women with Type 1 diabetes * Pregnant women with Type 2 diabetes on medication and gestational diabetes requiring medication * Pregnant women with gestational thrombocytopenia * Participants with upper respiratory infection at least 7 days prior to the procedure * Pariticipants with any contraindications to the placement of the NJ tube including deviated septum or any other anatomical abnormalities of the nasopharynx or upper gastrointestinal region, history of trans-sphenoidal surgery, facial or cranial trauma and fractures, chronic sinusitis, esophageal strictures, varices etc. * Participants on medications that delay gastric emptying. * Participants on drugs which impair clotting like anticoagulants and antiplatelet drugs, NSAIDS, history of bleeding disorders. * Participants using nasal steroids or any steroids for environmental allergies.

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Conditions

The condition(s) this trial relates to.

disease tropical sprue

As listed by the trial registrant

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

Environmental enteric dysfunction

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.