Exploring the connection between gut bacteria and brain tumors

Study of Human Brain-Gut Axis and Gut Microbiome In Patients With Brain Lesions - Repository for Neuroscience Research

Observational Mayo Clinic · NCT06117930

This study is trying to see if the bacteria in our gut can affect the growth of brain tumors in patients who are having surgery to remove them.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorMayo Clinic Academic / other
Drugs / interventionsimmunotherapy, radiation
Locations1 site (Jacksonville, Florida)
Trial IDNCT06117930 on ClinicalTrials.gov

What this trial studies

This observational study investigates how the gut microbiome may influence the growth and progression of malignant brain tumors. It aims to establish a biorepository at Mayo Clinic Florida by collecting various biological samples, including fecal, urine, blood, saliva, and tissue, from patients undergoing tumor resection. The study will utilize advanced techniques such as spatial transcriptomics and multi-omics to analyze the relationship between gut microorganisms and clinical outcomes in brain cancer patients. Participants will also complete questionnaires to provide additional clinical information.

Who should consider this trial

Good fit: Ideal candidates for this study are patients undergoing resection for a central nervous system tumor.

Not a fit: Patients younger than 18 years old will not benefit from this study as they are excluded from participation.

Why it matters

Potential benefit: If successful, this study could lead to new insights into how gut health affects brain tumor treatment and outcomes.

How similar studies have performed: While the relationship between the gut microbiome and various diseases is being explored, this specific approach focusing on brain tumors is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All patients undergoing resection for a tumor of the central nervous system and associated controls are eligible to participate in this study.

Exclusion Criteria:

* Excluded samples will be from patients younger than 18 years old. There are no exclusions due to race/sex.

Where this trial is running

Jacksonville, Florida

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Malignant Central Nervous System Neoplasm
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.