NIH-funded research R01 grant

New antibiotics that target harmful bacteria without affecting gut health

Official title: FabI Inhibitors as Potent, Gut Microbiome-Sparing Antibiotics

Funded at University of Illinois at Urbana-Champaign · NIH-11085120 · Data updated 2026-11-12

This study is working on new antibiotics that can fight tough infections caused by certain harmful bacteria, like Acinetobacter baumannii, while keeping your good gut bacteria safe, so it can help people with serious infections without causing more problems.

More Gut Microbiome research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Illinois at Urbana-Champaign
NIH-funded
Lab location1 site (Champaign, United States)
Project startJune 26, 2023
Project endMay 31, 2028
Funding year2025
Award (this year)$977,797
NIH project number5R01AI176523-03
Project IDNIH-11085120 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are patients suffering from infections caused by multidrug-resistant Gram-negative bacteria.

Less likely to help

Patients with infections caused by Gram-positive bacteria or those who do not have antibiotic-resistant infections may not benefit from this research.

What this research studies

This research focuses on developing novel antibiotics that specifically target multidrug-resistant Gram-negative bacteria, such as Acinetobacter baumannii, while preserving the beneficial bacteria in the gut microbiome. The approach involves creating FabI inhibitors, which are designed to be effective against harmful pathogens without disrupting the balance of healthy gut flora. By understanding how these antibiotics interact with bacterial enzymes, the research aims to reduce the risk of antibiotic resistance and improve treatment outcomes for patients with serious infections.

Why it matters

Potential benefit: If successful, this research could lead to antibiotics that effectively treat serious infections while minimizing negative impacts on gut health.

How similar studies have gone: While the approach of targeting FabI is novel, there is a growing body of research indicating that developing antibiotics that spare the gut microbiome could be a significant advancement in treating bacterial infections.

Where this research is happening

  • University of Illinois at Urbana-Champaign
    Champaign, United States
    Active

Researchers

  • Principal investigator: Hergenrother, Paul — University of Illinois at Urbana-Champaign
  • Study coordinator: Hergenrother, Paul

Related research

Other NIH-funded projects on the same topics.

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  • Aflatoxin exposure and child growth in Guatemala

    A study in rural Guatemala will track how exposure to aflatoxin relates to growth and gut health in young children.

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  • Gut bacteria that can make cancer immunotherapy less effective

    This project will see if reducing chronic inflammation driven by certain gut bacteria can help immunotherapy work better for people whose cancers have stopped responding.

    NIH research University of Tx Md Anderson Can Ctr · Houston, United States · NIH-11478145

  • How gut bacteria affect how cancer drugs work

    This project looks at how the bacteria in your gut might change how well and with what side effects fluoropyrimidine cancer drugs like 5-FU work in people.

    NIH research University of California, San Francisco · San Francisco, United States · NIH-11473234

  • Gut bacteria and cancer drugs: how your gut may change chemotherapy effectiveness

    This project studies how the gut microbiome might affect how well certain chemotherapy drugs work and their side effects in people with cancer.

    NIH research University of California, San Francisco · San Francisco, United States · NIH-11473233

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.