How gut bacteria affect cancer drug metabolism

Metabolism of cancer chemotherapeutics by the human gut microbiome

NIH-funded research University of California, San Francisco · NIH-11061621

This study is looking at how the bacteria in your gut might affect how well certain cancer treatments work and their side effects, specifically focusing on the drugs 5-fluorouracil and capecitabine, to help make cancer care more personalized and effective for patients like you.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of California, San Francisco NIH-funded
Lab location1 site (San Francisco, United States)
Project IDNIH-11061621 on NIH RePORTER

What this research studies

This research investigates how the human gut microbiome influences the effectiveness and side effects of cancer treatments, specifically focusing on the drug 5-fluorouracil (5-FU) and its prodrug capecitabine. By conducting laboratory and mouse studies, the researchers aim to identify the specific gut bacteria and their genetic components that metabolize these drugs. Understanding these interactions could help tailor cancer treatments to individual patients based on their gut microbiome composition. The ultimate goal is to improve the efficacy and reduce the toxicity of cancer therapies for patients.

Who could benefit from this research

Good fit: Ideal candidates for this research are cancer patients undergoing treatment with 5-fluorouracil or capecitabine.

Not a fit: Patients not receiving treatment with 5-fluorouracil or capecitabine may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to more personalized and effective cancer treatments with fewer side effects.

How similar studies have performed: Previous research has indicated that the gut microbiome plays a significant role in drug metabolism, suggesting that this approach could yield valuable insights.

Where this research is happening

San Francisco, 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 Anti-Cancer Agents
Last reviewed 2026-06-13 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.