NIH-funded research R01 grant

Fecal transplant plus fiber to treat graft-versus-host disease after blood stem cell transplant

Official title: Fecal Microbiota Transplantation and Fiber for the Treatment of Graft-versus-host Disease After Hematopoietic Cell Transplantation

Funded at Fred Hutchinson Cancer Center · NIH-11377663 · Data updated 2026-11-12

A study to see if giving fecal transplant along with dietary fiber helps gut health and reduces complications in patients who have received a stem cell transplant and developed graft-versus-host disease.

More Microbiota research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionFred Hutchinson Cancer Center
NIH-funded
Lab location1 site (Seattle, United States)
Project startSeptember 1, 2023
Project endJune 30, 2027
Funding year2026
Award (this year)$627,095
NIH project number5R01HL166107-04
Project IDNIH-11377663 on NIH RePORTER

Who could benefit from this research

Could help

Adults who have undergone allogeneic hematopoietic cell transplantation and have or are at risk for GvHD.

Less likely to help

Patients without GvHD or those who cannot tolerate gut-directed therapies may derive little or no direct benefit.

What this research studies

This project focuses on people who have undergone allogeneic hematopoietic cell transplantation and develop GvHD, a serious complication. It aims to test how delivering FMT (fecal microbiota transplant) and fiber affects gut bacteria, inflammation, and clinical outcomes. Researchers will compare different delivery methods, monitor safety, and examine how the gut microbiome changes relate to recovery. The study uses controlled approaches to understand whether gut bacteria can influence GvHD progression and patient well-being.

Why it matters

Potential benefit: If successful, patients with GvHD after transplant could experience better gut health, fewer complications, and improved quality of life.

How similar studies have gone: Prior observational data and animal studies suggest gut microbiota manipulation may affect GvHD outcomes, but controlled evidence is limited and this trial seeks to provide more definitive data.

Where this research is happening

  • Fred Hutchinson Cancer Center
    Seattle, United States
    Active

Researchers

  • Principal investigator: Fredricks, David Neal — Fred Hutchinson Cancer Center
  • Study coordinator: Fredricks, David Neal

Related research

Other NIH-funded projects on the same topics.

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.
Last reviewed 2026-11-14 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.