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VEE VLP vaccine

Development stage
Phase 1
Lead developer
National Institute of Allergy and Infectious Diseases
Modality
Split/Subunit Vaccines → Inactivated Vaccines → Prophylactic Vaccines → Vaccines & Immunotherapeutics, Recombinant Protein Vaccines → Recombinant Vaccines → Prophylactic Vaccines → Vaccines & Immunotherapeutics
Administration
Intramuscular
01

Overview

VEE VLP vaccine is an investigational virus-like particle (VLP) vaccine designed to prevent infection with Venezuelan equine encephalitis virus (VEEV), an alphavirus that causes severe encephalitic disease in humans and equids and is considered a potential biological warfare agent.[2][3] The vaccine consists of noninfectious VLPs that display VEEV structural proteins (capsid and envelope glycoproteins) but lack viral genomic RNA, thereby mimicking the native virion to elicit neutralizing antibody and cellular immune responses while avoiding the risk of replication.[2][4][8] A monovalent VEE VLP study agent, corresponding to the VEE component of the NIAID trivalent alphaviral VLP vaccine, has been evaluated in a clinical trial in healthy adults to assess safety and immunogenicity for protection against VEEV exposure.[3] The platform is being developed primarily for prophylaxis against Venezuelan equine encephalitis in at‑risk or potentially exposed populations, leveraging the rapid and scalable production advantages of VLP-based vaccines.[1][5][8]

Other names
monovalent VEE VLP vaccine
02

Targets

BCR (Immunoglobulin G B Cell Receptor)

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