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Stomach bug patterns could reveal cancer risk early

NCT ID NCT07253948

Knowledge-focused Sponsor: Jilin University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how the H. pylori bacterium is distributed in different stages of stomach inflammation and early gastric cancer. Researchers will examine tissue samples from 231 people using a special staining technique to see where and how much bacteria are present. The goal is to find patterns that could help doctors screen for early stomach cancer more effectively.

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 could help identify patterns of H. pylori infection that signal a higher risk of early gastric cancer, improving screening strategies.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove that changing H. pylori levels prevents cancer, and results may not apply to all populations.

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 231 people

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

Started

Oct 2025

Expected to finish

Dec 2025

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

Cases that underwent gastric H. pylori immunohistochemical staining at our center from March 1, 2023, to August 15, 2025.

Ages

18 to 80 years

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 18-80 years * received H. pylori immunohistochemical testing at our center and tested positive. Exclusion Criteria: * biopsies not collected from both the greater and lesser curvatures of the gastric antrum and body * history of stomach surgery * suspected autoimmune gastritis under endoscopy * liver cirrhosis * severe comorbidities such as advanced cancer or renal failure * advanced gastric cancer or gastric lymphoma

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Conditions

The condition(s) this trial relates to.

chronic atrophic gastritis gastric neoplasm Helicobacter pylori infectious disease microinvasive gastric cancer

As listed by the trial registrant

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

Early gastric cancer Helicobacter pylori

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

  • the First Hospital of Jilin University

    RECRUITING

    Changchun, Jilin, 130021, China

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