Plain-English translation of NCT04191551 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
The Gastric Precancerous Conditions Study (GAPS) is a long-term research project at Stanford University that follows people who have early changes in their stomach lining or are at higher risk for stomach cancer. Researchers will collect blood, saliva, and small tissue samples during your endoscopy visits to understand which people's precancerous changes get worse, stay the same, or improve over time.
Stomach cancer is often found too late in the United States, when treatment is much harder. This study exists to identify the warning signs and risk factors that predict which people with early stomach changes will eventually develop cancer—so doctors can catch the disease earlier and save lives.
You likely qualify if…
You likely don't qualify if…
You will have at least one endoscopy at Stanford Healthcare where doctors will take small tissue samples and collect blood and saliva. The study team will then follow you over time, asking you back for additional endoscopies to check whether any precancerous changes in your stomach have progressed, stayed the same, or improved. Between visits, researchers will contact you to track your health and any symptoms.
AI-generated summary from trial data · Jun 7, 2026 · Not medical advice
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