Gut bug tied to fatty liver? scientists launch probe
NCT ID NCT07455149
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study will examine whether a specific gut bacterium, Ruminococcus gnavus, and the chemicals it produces are linked to metabolic dysfunction-associated fatty liver disease (MAFLD). Researchers will compare 200 healthy adults and those with MAFLD to understand the connection. No treatments or interventions are given; this is purely an observational study to gather knowledge.
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 200 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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Oct 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.
Who is studied
Meet eligibility criteria
- Ages
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18 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.Healthy individuals without a history of liver disease or related underlying diseases; or patients diagnosed with metabolic dysfunction-associated fatty liver disease (MAFLD) according to the latest guideline, Guidelines for the Prevention and Treatment of Metabolic (Dysfunction-Associated/Non-Alcoholic) Fatty Liver Disease (2024 Edition), meeting the following criteria: (i) imaging-based diagnosis of fatty liver and/or liver biopsy showing ≥5% macrovesicular steatosis in hepatocytes; (ii) presence of at least one component of metabolic syndrome (MetS); and (iii) exclusion of other causes of fatty liver, including excessive alcohol consumption (weekly ethanol intake ≥210 g for men and ≥140 g for women), malnutrition, hepatolenticular degeneration (Wilson's disease), and other potential etiologies. 2.Willingness to participate in this study and to sign the informed consent form. 3.Age \>18 years. Exclusion Criteria: * 1\. History of severe organic diseases in the liver, gastrointestinal tract, kidneys, or other systems, malignant tumors, or autoimmune diseases. 2\. Patients who have had an acute infection or inflammatory disease within the past month. 3\. Use of laxatives, antibiotics, probiotics, prebiotics, proton pump inhibitors, or other medications that may affect the gut microbiota within the past month.
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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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Zhujiang Hospital of Southern Medical University
Guangzhou, Guangdong, 510000, China
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Other studies related to the condition(s) this trial covers.
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