Positive Results in Pfizer RSV Vaccine Trial
Pfizer says results from a Phase 3 trial of older adults for its respiratory syncytial virus (RSV) prefusion F vaccine candidate showed efficacy of 85.7% in participants with more severe disease primary endpoint of lower respiratory tract illness. A company statement says the vaccine was well-tolerated with no safety concerns. As a result, Pfizer says, it will seek regulatory approval this fall.