A Phase 3, Randomized, Double-Blind, Placebo-Controlled Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of VAX-31 Concomitantly Administered With Seasonal Influenza Vaccine in Healthy Subjects 50 Years of Age and Older
Latest Information Update: 11 Mar 2026
At a glance
- Drugs Influenza virus RIV3 vaccine-(FluBlok) (Primary) ; VAX 31 (Primary)
- Indications Pneumococcal infections
- Focus Adverse reactions; Pharmacodynamics; Registrational
- Acronyms OPUS-2
- Sponsors Vaxcyte
Most Recent Events
- 24 Feb 2026 According to a Vaxcyte media release, in Janaury 2026, company dosed the first participants in this trial.
- 03 Feb 2026 New trial record
- 22 Jan 2026 According to an Vaxcyte media release, company expects to announce topline safety, tolerability and immunogenicity data for the OPUS-2 Phase 3 trial in the first half of 2027.