Vaccine Innovation. Beyond Convention.

We are dedicated to eliminating bacterial infections such as invasive pneumococcal disease, Group A Strep, periodontitis and Shigella to protect every child born and every adult at risk across the globe.

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Pushing the Boundaries of What’s Possible

Despite widespread vaccination with current pneumococcal conjugate vaccines (PCVs), there is an abundance of non-vaccine strains of the Streptococcus pneumoniae bacteria causing significant morbidity and mortality. This underscores the importance of advancing VAX-24, our lead 24-valent PCV candidate, which is the broadest-spectrum PCV in U.S. clinics today. Upon achieving clinical proof-of-concept, VAX-24 was granted FDA Breakthrough Therapy designation for the prevention of invasive pneumococcal disease in adults.

Re-Engineering How Vaccines are Made

We strive to overcome the limitations of conventional, cell-based vaccine approaches using advanced chemistry and modern synthetic techniques – including our XpressCF™ cell-free protein synthesis platform – to produce broad-spectrum vaccines that are uniquely capable of breaking down bacteria’s complex defense mechanisms while preserving immunogenicity.

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Building a Pipeline of High-Fidelity and Broad-Spectrum Vaccines

Our PCV franchise is intended to improve upon existing pneumococcal vaccines by covering a significant portion of the invasive pneumococcal disease currently in circulation that is associated with high case-fatality rates, antibiotic resistance and meningitis. Following VAX-24, we are developing VAX-31, a 31-valent PCV candidate. Additional vaccine candidates in preclinical development target Group A Strep, periodontitis and Shigella.

Latest News


Vaxcyte Reports First Quarter 2024 Financial Results and Provides Business Update

-- VAX-31 Adult Phase 1/2 Study Enrollment Completed; Topline Safety, Tolerability and Immunogenicity Data Expected in Third Quarter of 2024 -- -- Following VAX-31 Adult Phase 1/2 Study Readout, Vaxcyte to Advance VAX-24 or VAX-31 to Adult Phase 3 Program -- -- VAX-24 Infant Phase 2 Study

Vaxcyte to Present at the 23rd Annual Needham Virtual Healthcare Conference

SAN CARLOS, Calif., April 02, 2024 (GLOBE NEWSWIRE) -- Vaxcyte, Inc. (Nasdaq: PCVX), a clinical-stage vaccine innovation company engineering high-fidelity vaccines to protect humankind from the consequences of bacterial diseases, announced today that Company management will participate in a

Vaxcyte Completes Enrollment of Phase 2 Study Evaluating VAX-24 for the Prevention of Invasive Pneumococcal Disease (IPD) in Infants

-- Company Expects to Announce Topline Safety, Tolerability and Immunogenicity Data from Primary Immunization Series by the End of the First Quarter of 2025, Followed by Topline Data from Booster Dose by the End of 2025 -- -- VAX-24, a 24-Valent Pneumococcal Conjugate Vaccine (PCV), is Designed to

Careers: Built to Scale with Purpose

Looking for higher aspirations to ignite your mind and inspire your heart? Then join a team that brings grit and grace to the challenge of protecting every human from the consequences of endemic bacterial infections.