UPDATE 1-Vertex cystic fibrosis combination succeeds in late-stage trials
March 28, 2017 at 17:50 PM EDT
March 28 (Reuters) - Vertex Pharmaceuticals Inc said on Tuesday its Kalydeco cystic fibrosis treatment given with an experimental drug demonstrated significant improvements in lung function in a pair of late-stage trials the company plans to use to seek approval of the combination therapy.