Invivyd expands COVID-19 study, develops measles antibody candidate

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Invivyd Announces REVOLUTION Program Progress and Advancement of Novel, Potential First- and Best-in-Class Measles Monoclonal Antibody Candidate VMS063 for Treatment and Prevention of Measles

April 9, 2026 7:01 AM EDT

Confirmed, pooled, blinded COVID-19 events in the ongoing Phase 3 DECLARATION study of VYD2311 accumulated to date (~ 50% of study progress) can already provide sufficient statistical power to support the high end of anticipated VYD2311 efficacy Invivyd conducted a pre-specified sample size re-estimation analysis when 1,500 of 1,818 enrolled patients reached Day 45 of 90 total days (April 6th), designed to add robustness given future event rate variability; that upsizing was triggered and increases confidence in overall study statistical powerDECLARATION upsizing provides ~500... More