Self-Amplifying RNA Vaccines After the First Approvals: Technology, Development Landscape, and Regulatory Science Considerations
Self-amplifying RNA (saRNA) is a next-generation nucleic acid vaccine platform that enhances antigen expression through intracellular amplification of replicon RNA without producing infectious virions. saRNA constructs encode an alphavirus-derived replicase comprising nonstructural proteins nsP1–nsP4 and can elicit rob...