T cells and the gut microbiome in inherited frontotemporal dementia

Identifying T cell determinants of heritable Frontotemporal dementia

['FUNDING_R01'] · CASE WESTERN RESERVE UNIVERSITY · NIH-11306600

This project looks at whether shifting immune T cells and gut microbiome signals can help people with inherited frontotemporal dementia linked to C9ORF72 mutations.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorCASE WESTERN RESERVE UNIVERSITY (nih funded)
Locations1 site (CLEVELAND, UNITED STATES)
Trial IDNIH-11306600 on ClinicalTrials.gov

What this research studies

Researchers will compare immune T cell types and gut microbes in people who carry the C9ORF72 repeat expansion and in control participants. They will analyze blood and stool samples to see how the mutation and microbiome signals change the balance between regulatory T cells and inflammatory Th17 cells. Laboratory models and patient-derived samples will be used to test approaches that boost regulatory T cells or reduce Th17-driven inflammation. The goal is to find immune- or microbiome-related ways to slow or prevent nerve cell damage in inherited FTD.

Who could benefit from this research

Good fit: Ideal participants are people who carry the C9ORF72 repeat expansion or have a clinical diagnosis of frontotemporal dementia and can provide blood and stool samples.

Not a fit: People whose dementia is not linked to C9ORF72 mutations or who cannot provide samples may not directly benefit from this project.

Why it matters

Potential benefit: If successful, this work could point to immune-based or microbiome-targeted therapies that slow symptom progression in people with C9ORF72-related frontotemporal dementia.

How similar studies have performed: Previous research has linked immune changes and the gut microbiome to Alzheimer’s and other neurodegenerative diseases, but targeting Treg/Th17 balance specifically in C9ORF72-related FTD is a relatively new approach.

Where this research is happening

CLEVELAND, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Conditions: Alzheimer disease dementia, Alzheimer disease treatment

Last reviewed 2026-05-15 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.