GSK’s Bexsero Dangles No More: Meningococcal B Vaccine Converts To Regular Approval

US FDA’s 2015 accelerated approval called for confirmatory trial completion by 2018, but study initiation was delayed. Completed in 2022, the trial not only verified Bexsero’s clinical benefit, it also served as the pivotal study for GSK’s pentavalent meningococcal vaccine candidate.