Can body samples reveal hidden differences in stomach cancers?
NCT ID NCT05812287
First seen Sep 08, 2026 · Last updated Sep 09, 2026 · Updated 1 time
Summary
Researchers are studying whether stomach cancers that start near the esophagus differ from those in the rest of the stomach. They collect saliva, blood, stool, and tissue samples from 120 adults with stomach cancer and compare them with healthy controls. Using advanced molecular analysis, the team looks for unique markers that could help spot these cancers earlier.
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 identify biological markers that help detect gastric cancer earlier, potentially improving survival rates.
- What could go wrong
- This is an observational study, so it cannot prove cause and effect. The findings may not lead to a practical screening test without further validation.
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
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About 120 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2024
- Expected to finish
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Dec 2028
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.
Who is studied
Case: The population in the case group signed an informed consent form, aged between 18 and 75 years. All subjects underwent endoscopic examination and were confirmed by pathological diagnosis as gastric cancer, including high-grade intraepithelial neoplasia, early gastric cancer, and advanced gastric cancer. Control: The age and gender of the study subjects in the control group were matched to the study population in the case group. The pathological results of the stomach of all subjects showed no malignant changes, including normal gastric mucosa, superficial gastritis, non atrophic gastritis, and gastric polyps, etc.
- Ages
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18 to 75 years
- 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: * Study population signing informed consent form * Age: 18-75 years old * The study population must underwent endoscopic examination and was confirmed by pathological diagnosis as gastric cancer: including high-level intraepithelial neoplasia, early gastric cancer, and advanced gastric cancer. Exclusion Criteria: * Those who have undergone gastrointestinal surgery within the past 1 year; Patients who have undergone neoadjuvant chemotherapy and have developed tumors in the residual stomach after previous partial gastrectomy. * Those who have used proton pump inhibitors, antibiotics, probiotics, and prebiotics daily within the past month, and those who have recently received hormone therapy. * People with infectious diseases and other digestive system diseases that interfere with the experimental results, such as inflammatory bowel disease, irritable bowel syndrome, etc.
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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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Qilu Hospital of Shandong University
RECRUITINGJinan, Shandong, 250012, China
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