{"nct_id":"NCT02516410","title":"A Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Heterozygous for the F508del-CFTR Mutation","status":"COMPLETED","status_verified_date":"2018-05","start_date":"2015-08","start_date_type":null,"primary_completion_date":"2016-06-07","primary_completion_date_type":"ACTUAL","completion_date":"2016-06-07","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["VRTX"]}