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Mar 09, 2026
New real-world effectiveness data presented at RSVVW'26 demonstrate that GSK's Arexvy RSV vaccine was associated with a 75.6% reduction in RSV-related hospitalizations among adults aged 60 and older, with exploratory findings suggesting potential benefits for cardiovascular and respiratory complications.
Feb 20, 2026
Phase III SMART trial data show clesrovimab maintained consistent safety and efficacy in high-risk children across two RSV seasons, with no drug-related serious adverse events reported in either season.
Feb 24, 2026
Merck announced positive second RSV season findings from the Phase 3 SMART trial evaluating ENFLONSIA (clesrovimab) in infants and children under 2 years at increased risk for severe RSV disease, showing consistent safety and antibody levels similar to healthy infants.
