Bacterial Infections Vaccine Developer Vaxcyte's Pneumococcal Shot Shows Promise in Mid-Stage Trial, Stock Shoots Higher

Tuesday, Vaxcyte, Inc. (NASDAQ:PCVX) released topline results from the Phase 1/2 study evaluating the safety, tolerability and immunogenicity of VAX-31, the company's 31-valent pneumococcal conjugate vaccine (PCV) candidate designed to prevent invasive pneumococcal disease.

VAX-31 was well tolerated and demonstrated a safety profile at all doses studied through the full six-month evaluation period, similar to Pfizer Inc's (NYSE:PFE) Prevnar 20 (PCV20).

VAX-31 showed robust opsonophagocytic activity (OPA) immune responses for all 31 serotypes at all doses studied.

Also Read: Vaccine Player Vaxcyte Has Advantage Over Pfizer, Merck's Pneumococcal Shots – Analyst Says.

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