Vaxcyte says VAX-24 proof-of-concept results published in The Lancet

Vaxcyte announced the publication of the results from the VAX-24 Phase 1/2 clinical proof-of-concept study in the journal The Lancet Infectious Diseases. This study evaluated the safety, tolerability and immunogenicity of Vaxcyte’s investigational 24-valent, carrier-sparing pneumococcal conjugate vaccine compared to the current standard-of-care, Prevnar 20, for the prevention of invasive pneumococcal disease in healthy adults 18-64 years of age. The study results showed VAX-24 demonstrated a safety and tolerability profile that was comparable to PCV20 at all doses studied, and an immunogenicity profile that met or exceeded established regulatory immunogenicity standards for all 24 serotypes at the conventional 2.2 mcg dose. The Company plans to advance the VAX-24 2.2 mcg dose into a Phase 3 program. “The publication of our data in The Lancet Infectious Diseases, which is also highlighted in an independent commentary, is a testament to the potential of our cell-free technology to create carrier-sparing conjugate vaccines that provide broader coverage with enhanced immunogenicity compared to the standard-of-care in adults today,” said Jim Wassil, Executive Vice President and Chief Operating Officer of Vaxcyte. “Despite the availability of pneumococcal vaccines, the bacteria associated with IPD continues to be a major driver of deaths as a result of antimicrobial resistance. This is among the many reasons why the public health community continues to affirm the need for new vaccines that provide broader coverage against this disease. We believe these proof-of-concept study results underscore the potential of VAX-24 to address this important public health need.”