Gut check: could your microbiome affect cancer brain fog?
NCT ID NCT06098404
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how gut bacteria might be linked to memory, thinking, and tiredness in people with cancer. Researchers will collect stool samples and do thinking tests at the start and after 6 months of standard cancer treatment. The goal is to find patterns that could help manage these common side effects.
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 study could point toward ways to manage cognitive decline and fatigue in cancer patients by targeting the gut microbiome.
- What could go wrong
- This is a small, early pilot study that only observes and measures—it does not test any treatment. Results may not lead to direct benefits.
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 250 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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Oct 2026
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
Subjects will be selected from community cancer clinics
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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. Current diagnosis of cancer. 2. Ages 18 and over. 3. Has access to a device (smart phone, computer, tablet) with internet access. 4. Participant is willing and able to give informed consent for participation in the study. Exclusion Criteria: 1. Females who are pregnant or lactating. 2. Other medical conditions or medications deemed exclusionary by the study investigators.
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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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The University of Texas Medical Branch
RECRUITINGGalveston, Texas, 77555, United States
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