Vertex released interim data May 7th of an ongoing combination study of VX-809 and KALYDECO in Cystic Fibrosis patients with two copies of the F508del mutation. Results were very good- VX809 plus Kalydeco led to significant improvements in lung function (as measured by absolute change in percent predicted FEV1).   Treatment Group Absolute Improvement from Baseline in Lung Function (FEV1) […]