Gut bacteria may predict gallbladder cancer in gallstone patients
NCT ID NCT07635745
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 120 South American patients with gallstones to confirm if certain bacteria in stool are linked to gallbladder cancer risk. Researchers measured three types of gut bacteria using advanced DNA sequencing. The goal was to validate earlier findings that these bacteria may signal higher cancer risk. No treatment was given; this was an observational study to better understand the connection.
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 confirmed, this could help identify gallstone patients at higher risk for gallbladder cancer, enabling earlier monitoring or prevention.
- What could go wrong
- This is an observational validation study, not a treatment trial. The findings may not lead to immediate clinical changes and need further research.
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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.
Contacts and locations
Locations
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Caja Nacional de Seguro Social Cochabamba, Complejo Hospitalario Viedma, Instituto Gastroenterológico
Cochabamba, Bolivia
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Hospital Dr. Hernán Henriquez Aravena, Complejo Asistencial Padre las Casas, Hospital Regional de Talca, Hospital Regional de Concepción, Hospital Regional de Arica
Talca, Chile
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Instituto Regional de Enfermedades Neoplasicas del Sur (IREN SUR), Hospital Regional Honorio Delgado Espinoza, Hospital Goyeneche Arequipa, Hospital Regional Manuel Nuñez Butron-Puno
Arequipa, Peru
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Statistical Genetics Research Group, Institute of Medical Biometry, University of Heidelberg
Heidelberg, Germany
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