Stomach cancer prevention breakthrough? 4,800-Person trial targets High-Risk bacteria
NCT ID NCT06943794
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether finding and treating a high-risk type of H. pylori bacteria can prevent stomach cancer. Over 4,800 adults aged 40 and older will be assigned to either standard care or a program that screens for risky H. pylori subtypes and offers antibiotic treatment. Researchers will track cancer rates over 5 to 10 years to see if the strategy works.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Helicobacter pylori eradication treatment (omeprazole or esomeprazole plus bismuth and two antibiotics)
- What this could lead to
- If successful, this could provide a targeted way to prevent stomach cancer by treating high-risk H. pylori infections before cancer develops.
- What could go wrong
- This is a large but early-stage prevention trial; results won't be known for years, and the approach may not reduce cancer rates as hoped. Antibiotic side effects or resistance could also limit effectiveness.
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
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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
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About 4,824 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2030
An estimate. End dates often move.
- Lead sponsor
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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
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40 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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. Age ≥ 40 years, gender is not limited. 2. Voluntary participation with signed informed consent. 3. No H. pylori eradication treatment received within the past 1 month. 4. Able to complete stool sample collection and related examinations as per study requirements. 5. Detected as high-risk by Hp subtype test. Exclusion Criteria: 1. A history of diagnosed gastric cancer or other malignant tumors of the digestive tract. 2. Comorbid severe underlying conditions (e.g., severe cardiopulmonary insufficiency, liver or renal failure, etc.) that are likely to result in a short life expectancy or render long-term follow-up impractical. 3. Severe mental illness or incapacity to participate in the study due to lack of civil behavior. 4. Pregnant or breastfeeding women. 5. Other conditions that the investigator deems inappropriate for participation in the study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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People's Hospital of Tongling City
Tongling, China
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