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Vaxcyte's VAX-31 shows strong phase 3 results, promising broad pneumococcal protection and key 2027 catalysts ahead

Analyst Insights
06 Oct 2026
Seeking Alpha
View Source
Bullish
Vaxcyte's VAX-31 shows strong phase 3 results, promising broad pneumococcal protection and key 2027 catalysts ahead

Vaxcyte's VAX-31 vaccine demonstrated strong phase 3 OPUS-1 results, proving non-inferior to existing vaccines Prevnar 20 and Capvaxive in adults. This vaccine targets broader pneumococcal strain coverage, aiming to cover 95% of adult invasive pneumococcal disease (IPD) cases, including emerging serotypes. The company has multiple upcoming catalysts in 2027, including OPUS-2 and OPUS-3 phase 3 data and phase 2 infant data, supported by a strong cash position from recent financings. Vaxcyte is also advancing its pipeline with VAX-A1 for Group A Streptococcus, with early-stage data expected by late 2027.

Vaxcyte's VAX-31 vaccine trial results are the subject, with Pluang's health sector market snapshot as of Oct 07, 2026 03:04 WIB: out of 100 priced US health stocks, 47 rose and 53 fell. Notable movers include MESO at USD 13.58 with a -4.50% change and a typical hold time of 14 days, CLPT at USD 11.01 down 4.43% with 21% sell and 79% buy order activity, and HUM at USD 404.74 up 4.22% with a typical hold time of 53 days and 100% sell order activity. The most notable figure is HUM's 100% sell order activity.

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