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Scientists launch major effort to unlock secrets of rare stomach cancer

NCT ID NCT04557969

Knowledge-focused Sponsor: National Cancer Institute (NCI) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Aug 18, 2026 · Updated 8 times

Summary

This study follows 400 people aged 6 and older who have a rare stomach cancer called GIST. Researchers will collect tumor tissue during surgery and study it in the lab to learn more about the disease. Participants are monitored every 6 to 12 months for up to 10 years before surgery and 5 years after. The goal is to better understand GIST and support future research, not to test a new treatment.

What this could mean

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

What this could lead to
If successful, this research could help scientists understand GISTs better and point toward new treatments for this rare cancer.
What could go wrong
This is an observational study, not a treatment trial. It collects data and tissue but does not test a new drug or therapy, so direct patient benefits are unlikely.

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 400 people

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

Started

Dec 2020

Expected to finish

Dec 2040

An estimate. End dates often move.

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

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

Who is studied

Individuals with histologically confirmed or clinical presentation suspicious of GIST.

Ages

6 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: * Histological confirmation or clinical presentation suspicious of GIST; histological confirmation will be preferably by review of archival tissue if available, fresh biopsy will not be required if inadequate tissue sample. * Age \>= 6 years * ECOG performance status \<= 2 (Karnofsky or Lansky \>= 60%) * Ability of participant or parent/guardian to understand and the willingness to sign a written informed consent document. EXCLUSION CRITERIA: \- Non-modifiable medical comorbidities that would preclude cytoreductive surgery.

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Conditions

The condition(s) this trial relates to.

gastric cancer gastric neoplasm gastrointestinal stromal tumor

As listed by the trial registrant

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

Gastric cancer Gastric neoplasm Gastrointestinal stromal neoplasm Gastrointestinal stromal sarcoma Gastrointestinal stromal tumor (GIST)

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

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

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