Britain's GSK said on Monday it had halted enrollment and vaccination in three trials of its experimental vaccine against the respiratory syncytial virus (RSV) in pregnant women, the latest setback in developing a vaccine for the microbe.
GSK said on Feb. 18 that it had paused a late-stage trial, dubbed "GRACE," as well as two other studies, based on safety recommendations from an independent committee but did not give further details on what had prompted the recommendations.
