Clinical trial Recruiting at 1 site Observational Ages 40 and up

Gastric cancer screening using stool H. pylori high-risk gene testing and a risk questionnaire

Official title: Research on the Application of Fecal Helicobacter Pylori High-Risk Single Nucleotide Polymorphism Detection in the Early Diagnosis and Screening of Gastric Cancer

Run by Fudan University · NCT06943781 · Data updated 2026-11-12

We are testing whether a stool H. pylori genetic risk test plus a short risk questionnaire can find gastric cancer earlier in adults aged 40 and older.

Quick facts

Study typeObservational
Ages40 Years and up
SexAll
Enrollment15000 (estimated)
SponsorFudan University
Academic / other
Locations1 site (Tongling)
StatusRecruiting
StartedJuly 1, 2025
Main results expectedJuly 1, 2027
Study endsDecember 31, 2027
Registry record updatedFebruary 25, 2026
Trial IDNCT06943781 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 40 years or older living in the selected Tongling communities who can give informed consent and can undergo endoscopy if referred.

Probably not a fit

People under 40, those with prior gastric or other digestive tract cancers, pregnant or breastfeeding women, or those too medically frail to undergo endoscopy are unlikely to benefit from this screening approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective observational screening effort to recruit 10,000–15,000 residents from selected communities in Tongling City. Each participant provides a stool sample for fecal H. pylori gastric cancer susceptibility (SNP) testing and completes a face-to-face gastric cancer risk questionnaire after providing informed consent. Anyone who tests positive on the stool test or is identified as high-risk by the questionnaire is referred for confirmatory fiberoptic endoscopy and biopsy, and those not diagnosed in the first year enter annual follow-up. Residual fecal samples will be banked at Fudan University Shanghai Cancer Center for future biomarker research.

Why it matters

Potential benefit: If successful, this combined noninvasive screening approach could detect people at higher risk for gastric cancer earlier, enabling earlier diagnostic workup and treatment.

How similar studies have gone: Noninvasive H. pylori tests have proven useful for detecting infection, but using fecal H. pylori SNP panels specifically to predict gastric cancer susceptibility is relatively novel and not yet widely validated.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥40 years, male or female.
2. No contraindications to endoscopy and able to cooperate with endoscopy.
3. Patients must be able to fully understand the informed consent form and be able to sign the informed consent form in person.

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.

Where it's running

  • People's Hospital of Tongling City
    Tongling, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.