Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Rollover Study of Ivacaftor in Subjects With Cystic Fibrosis and a Non G551D CFTR Mutation (KONTINUE)

This study has been completed.
Cystic Fibrosis Foundation Therapeutics
Information provided by (Responsible Party):
Vertex Pharmaceuticals Incorporated Identifier:
First received: October 9, 2012
Last updated: May 10, 2016
Last verified: May 2016
The purpose of this study is to evaluate the safety of long-term ivacaftor treatment in subjects with cystic fibrosis (CF) from Studies 110 (NCT01614457), 111 (NCT01614470), and 113 (NCT01685801).

Condition Intervention Phase
Cystic Fibrosis
Drug: ivacaftor
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase 3, Two-Arm, Rollover Study to Evaluate the Safety of Long Term Ivacaftor Treatment in Subjects 6 Years of Age and Older With Cystic Fibrosis and a Non-G551D CFTR Mutation

Resource links provided by NLM:

Further study details as provided by Vertex Pharmaceuticals Incorporated:

Primary Outcome Measures:
  • Safety [ Time Frame: Up to 104 weeks ]
    Subjective reporting of adverse events, clinical laboratory values (serum chemistry and hematology), electrocardiograms (ECGs), ophthalmologic examinations, and vital signs.

Secondary Outcome Measures:
  • Absolute change from baseline in percent predicted forced expiratory volume in 1 second (FEV1) [ Time Frame: Through Week 104 ]
  • Change from baseline in body mass index (BMI) [ Time Frame: At Week 104 ]
  • Change from baseline in sweat chloride [ Time Frame: Through Week 104 ]
  • Change from baseline in the respiratory domain of the Cystic Fibrosis Questionnaire Revised (CFQ R) [ Time Frame: Through Week 104 ]
  • Pulmonary exacerbation [ Time Frame: Up to 104 weeks ]

Enrollment: 125
Study Start Date: February 2013
Study Completion Date: April 2016
Primary Completion Date: April 2016 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Ivacaftor

150 mg, oral use, every 12 hours (q12h)

Subjects in the ivacaftor arm, who have not taken inhaled hypertonic Saline (HS) for at least 4 weeks, are clinically stable and are exacerbation free will have the option to participate in the optional inhaled HS substudy

Drug: ivacaftor
150 mg tablet, oral use, every 12 hours (q12h)
Other Names:
  • Kalydeco
  • VX-770
No Intervention: Observational
Day 1 assessments, Long-term Follow-up

Detailed Description:

Ivacaftor is the first CFTR modulator to show an improvement in CFTR function and clinical benefit in patients with CF. Results from Phase 3 studies (VX08-770-102 [Study 102] and VX08-770-103 [Study 103]) showed that ivacaftor is effective in the treatment of patients with CF who have the G551D-CFTR mutation, as evidenced by sustained improvements in CFTR channel function (measured by reduction in sweat chloride concentration) and corresponding substantial, durable improvements in lung function, pulmonary exacerbations, respiratory symptoms, and weight gain. Ivacaftor was also well tolerated, as evidenced by the rates and reasons for premature discontinuation and results of safety assessments.

Ivacaftor (Trade Name Kalydeco; 150 mg tablets) was initially approved in the United States for the treatment of CF in patients 6 years of age and older who have a G551D mutation in the CFTR gene.


Ages Eligible for Study:   6 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subjects from Study 110 or Study 111 entering the ivacaftor arm must have completed the assigned study drug treatment duration in the previous study
  • Subjects from Study 113 entering the ivacaftor arm must have completed all study related treatments through the Follow-up Visit and met the Study 113 responder criteria during the previous study.
  • Subjects entering the observational arm must have completed at least 4 weeks of study drug treatment in their previous study (Study 110 or Study 111), must have completed the previous study but do not wish to enroll in the ivacaftor arm, or must have completed the previous study but do not meet the inclusion criteria of the ivacaftor arm.
  • Females of childbearing potential entering the ivacaftor arm must not be pregnant
  • Subjects entering the ivacaftor arm must be willing to comply with contraception requirements

Exclusion Criteria (Ivacaftor Arm Only):

  • History of any illness or condition that might confound the results of the study or pose an additional risk in administering ivacaftor to the subject
  • Use of moderate or strong inhibitors or inducers of cytochrome P450 (CYP) 3A
  • Evidence of cataract or lens opacity at or before the Day 1 Visit
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01707290

  Show 38 Study Locations
Sponsors and Collaborators
Vertex Pharmaceuticals Incorporated
Cystic Fibrosis Foundation Therapeutics
Principal Investigator: Joseph Pilewski, MD Children's Hospital of Pittsburgh
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Vertex Pharmaceuticals Incorporated Identifier: NCT01707290     History of Changes
Other Study ID Numbers: VX12-770-112
Study First Received: October 9, 2012
Last Updated: May 10, 2016

Additional relevant MeSH terms:
Cystic Fibrosis
Pathologic Processes
Pancreatic Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Infant, Newborn, Diseases processed this record on April 21, 2017