Norovirus enzyme-blocking medicine for people with weakened immune systems

Anti-norovirus protease inhibitors for immunocompromised patients

NIH-funded research Emory University · NIH-11159727

A small drug that blocks a norovirus enzyme to treat infections in people with weakened immune systems and vulnerable children.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionEmory University NIH-funded
Lab location1 site (Atlanta, United States)
Project IDNIH-11159727 on NIH RePORTER

What this research studies

If I or a loved one had a long-lasting norovirus infection, this team is designing small drugs that stop a key viral enzyme so the virus can’t copy itself. They have lab compounds that already stopped norovirus in cell tests at very low doses and will improve the chemistry to make the drug safe and absorbable. The researchers will run lab and preclinical tests (including how the drug behaves in the body) and check safety before moving toward human testing. The work aims to turn a promising lab molecule into a medicine that could be tried in patients in future trials.

Who could benefit from this research

Good fit: Ideal candidates would be people with weakened immune systems (for example transplant recipients, people on chemotherapy, or those with immune disorders) and possibly young children with severe or prolonged norovirus.

Not a fit: People with short, typical norovirus illness who recover within a week or those without immune compromise are unlikely to need or benefit from this treatment.

Why it matters

Potential benefit: Could become the first targeted antiviral to shorten or eliminate chronic norovirus infections in immunocompromised patients.

How similar studies have performed: Protease-blocking drugs have been very successful for other viruses like hepatitis C and HIV, but norovirus-specific protease inhibitors are still at an early, mostly preclinical stage.

Where this research is happening

Atlanta, 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.
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.