The prefilled syringe presentation streamlines administration of the vaccine, eliminating the need to combine the lyophylized antigen and separate adjuvant.
GSK's RSV vaccine Arexvy would join shots from Pfizer and Moderna for the younger adult population, broadening choice for those with risk factors for severe disease.
Moderna voluntarily withdrew the BLA after consultation with the FDA and will resubmit once it has additional phase 3 efficacy data for its investigational flu shot.