Investigating a new vaccine for Venezuelan Equine Encephalitis in healthy adults

Safety and Immunogenicity of novel, live-attenuated V4020 vaccine for Venezuelan Equine Encephalitis (VEE) in healthy adults

NIH-funded research Medigen, INC. · NIH-10815801

This study is testing a new vaccine called V4020 to see if it can safely protect healthy adults from the Venezuelan Equine Encephalitis virus, aiming to be a better option than the current vaccine.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionMedigen, INC. NIH-funded
Lab location1 site (Frederick, United States)
Project IDNIH-10815801 on NIH RePORTER

What this research studies

This research focuses on developing a novel vaccine, V4020, to protect against Venezuelan Equine Encephalitis virus (VEEV), which poses a significant health threat. The vaccine is designed to be safer and more effective than the currently used TC-83 vaccine, which has known adverse effects. Healthy adult participants will receive the vaccine to assess its safety and immune response. The study aims to ensure that the vaccine does not revert to a pathogenic form, thereby providing a reliable option for outbreak control.

Who could benefit from this research

Good fit: Ideal candidates for participation are healthy adults aged 21 and older who are willing to receive the vaccine and participate in follow-up assessments.

Not a fit: Patients with pre-existing health conditions or those who are immunocompromised may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to a safer and more effective vaccine against Venezuelan Equine Encephalitis, protecting individuals from this serious infection.

How similar studies have performed: Previous research has shown promise in developing vaccines for similar viral infections, indicating potential success for this novel approach.

Where this research is happening

Frederick, 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 infection risk
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.