US Stock Movement | Pneumococcal Vaccine Meets Late-Stage Clinical Trial Target, Vaxcyte (PCVX.US) Opens Over 50% Higher
智通财经2026/10/05 13:46According to reports from Zhihu Finance APP, on Monday, Vaxcyte (PCVX.US) opened over 50% higher, with gains of around 53% at the time of publication, and a market capitalization of 12.8 billions USD. The surge comes after the company's pneumococcal vaccine met its late-stage clinical trial goals. According to company assessments, VAX-31—a 31-valent pneumococcal conjugate vaccine under investigation—achieved positive topline results in its pivotal Phase III OPUS-1 trial. The trial evaluated the candidate vaccine’s safety, tolerability, and immunogenicity in adults to prevent invasive pneumococcal disease and pneumococcal pneumonia. In the OPUS-1 trial, VAX-31 achieved all pre-specified co-primary immunogenicity endpoints in subjects aged 50 years and older. These trial results will serve as the foundation for the upcoming Biologics License Application to be submitted to the U.S. Food and Drug Administration.
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