Can we measure effectiveness of new cystic fibrosis treatments in improving lung health in children with cystic fibrosis aged less than 2 years of age during clinical trials conducted for the approval of new medicines?

Tim Lee, Kate Hill, Daan Caudri, Pierluigi Ciet, Gwyneth Davies, Jane C Davies, Anna-Maria Dittrich, Anders Lindblad, Paul McNally, Philippe Reix, Clare Saunders, Isabelle Sermet-Gaudelus, Mirjam Stahl, Harm A.W.M. Tiddens, Hettie M. Janssens