Question · Q4 2025
Carter Gould asked about the regulatory flexibility on individual serotypes, specifically regarding serotype 3 comparisons against PCV21 (Capvaxive), given its importance in IPD prevalence and commercial implications.
Answer
Grant Pickering, CEO of Vaxcyte, reiterated that FDA approval is based on the 'totality of the vaccine's contribution,' and missing a few serotypes would not be a disqualifier. He acknowledged serotype 3 as an outlier, noting that no current vaccine has produced protective antibody responses, and it has not been a competitive differentiator. Pickering added that Vaxcyte's serotype 3 responses looked better than Prevnar 20 in previous studies.
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