Clinical Trials and Studies

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We're sorry, but this trial is no longer enrolling volunteers.

A Phase 3, Randomized, Double Blind, Placebo Controlled, Parallel Group Study to Evaluate the Efficacy and Safety of Lumacaftor in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Homozygous for the F508del CFTR Mutation



Phase 3 - a treatment has shown activity against a particular disease, where it is either added to existing treatment or compared to the standard treatment.

Inclusion and Exclusion Criteria

  • Males and females, aged 12 years or older on the date of informed consent or, where appropriate, date of assent
  • Confirmed diagnosis of CF
  • Homozygous for the F508del CFTR mutation
  • FEV1 ≥40% and ≤90% of predicted normal for age, sex, and height
  • Willing to remain on a stable CF medication regimen through Week 24 or, if applicable, the Safety Follow up Visit

  • An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy (including antibiotics) for pulmonary disease within 4 weeks before first dose of study drug
  • History of solid organ or hematological transplantation
  • History of alcohol or drug abuse in the past year
  • Ongoing or prior participation in an investigational drug study (including studies investigating lumacaftor and/or ivacaftor) within 30 days of screening
  • Use of strong inhibitors, moderate inducers or strong inducers of CYP3A , including consumption of certain herbal medications (e.g., St. John's Wort) and certain fruit and fruit juices within 14 days before Day 1 of dosing


Please contact the trial administrator to learn more about where you can participate in this trial. Please use the contact form on the right side.

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