The role of gut bacteria in kidney transplant medication levels

Gut Microbiota and Tacrolimus Trough Variability in Kidney Transplant Recipients

NIH-funded research Weill Medical Coll of Cornell Univ · NIH-10896123

This study is looking at how the bacteria in your gut might affect the levels of tacrolimus, a medicine that helps prevent kidney transplant rejection, so we can find ways to better manage your medication and keep you healthy.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionWeill Medical Coll of Cornell Univ NIH-funded
Lab location1 site (New York, United States)
Project IDNIH-10896123 on NIH RePORTER

What this research studies

This research investigates how gut microbiota affects the levels of tacrolimus, a medication used to prevent kidney transplant rejection. It aims to understand the relationship between specific gut bacteria and the variability of tacrolimus levels in kidney transplant recipients. By analyzing fecal samples and blood levels, the study seeks to identify which gut microbes may influence the metabolism of tacrolimus, potentially leading to better management of medication dosing for patients. This could help reduce the risks of both acute rejection and toxicity associated with improper tacrolimus levels.

Who could benefit from this research

Good fit: Ideal candidates for this research are kidney transplant recipients who are currently taking tacrolimus.

Not a fit: Patients who are not kidney transplant recipients or those not taking tacrolimus will not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to personalized medication management for kidney transplant recipients, improving transplant outcomes.

How similar studies have performed: Preliminary studies have shown a potential link between gut microbiota and tacrolimus metabolism, suggesting this approach may yield valuable insights.

Where this research is happening

New York, 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.
Conditions End-Stage Kidney DiseaseEnd-Stage Renal Disease
Last reviewed 2026-06-10 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.