GlaxoSmithKline announced that a peer-reviewed study issued online by the New England Journal of Medicine has reported that GSK's FluLaval® Quadrivalent reduced flu cases among children ages 3-8 by 55.4% overall and lowered the risk of developing moderate-to-serious flu illness by 73.1%. This was the first large-scale clinical trial conducted specifically to review the safety and effectiveness of vaccinating children with a four-strain flu vaccine. The randomized, controlled clinical trial included 5,220 children and was one of the pivotal studies leading to the recent approval of FluLaval Quadrivalent by the FDA.