Developing a Safe Lassa Fever Vaccine

Novel Lassa fever live-attenuated vaccine platform with safety features ensuring unbreachable attenuation

NIH-funded research Scripps Research Institute, the · NIH-11173710

This project is creating a new, safer vaccine to protect people from Lassa fever, a serious illness found in West Africa.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionScripps Research Institute, the NIH-funded
Lab location1 site (La Jolla, United States)
Project IDNIH-11173710 on NIH RePORTER

What this research studies

Lassa fever is a serious disease common in West Africa, with no approved vaccine and limited treatment options. This project aims to create a live-attenuated vaccine (LAV), which uses a weakened form of the virus to teach the body to fight the infection. Researchers are designing this vaccine to be very safe by making specific genetic changes to the virus, ensuring it cannot become harmful again. They have already seen promising results in animal models, where these modified viruses were safe and provided full protection against Lassa fever. The ultimate goal is to develop a highly effective and safe vaccine to prevent this devastating disease.

Who could benefit from this research

Good fit: This foundational research is for future vaccine development, so ideal candidates would eventually be individuals at high risk of Lassa fever infection, particularly in West Africa.

Not a fit: Patients currently suffering from Lassa fever would not directly benefit from this vaccine development project, as it focuses on prevention rather than treatment.

Why it matters

Potential benefit: If successful, this vaccine could offer much-needed protection against Lassa fever, significantly reducing illness and death in affected regions.

How similar studies have performed: Previous work by these researchers has shown that similar modified viruses are safe and protective in animal models, suggesting a promising approach for this vaccine.

Where this research is happening

La Jolla, 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.