A Study to Evaluate the Effect of VX-661 in Combination With Ivacaftor on Chest Imaging Endpoints in Subjects With Cystic Fibrosis, Homozygous for the F508del CFTR Mutation
Conditions
Interventions
- DRUG: Tezacaftor/Ivacaftor
- DRUG: Ivacaftor
- DRUG: Placebo
- DRUG: Placebo
Sponsor
Vertex Pharmaceuticals Incorporated