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A Study to Evaluate the Safety and Efficacy of Long Term Treatment With VX-661 in Combination With Ivacaftor in Subjects With Cystic Fibrosis Who Have an F508del-CFTR Mutation

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02565914
Recruitment Status : Active, not recruiting
First Posted : October 1, 2015
Results First Posted : June 16, 2020
Last Update Posted : June 16, 2020
Sponsor:
Information provided by (Responsible Party):
Vertex Pharmaceuticals Incorporated

Brief Summary:
This is a Phase 3, multicenter, open-label, 3-part rollover study in subjects with CF who are homozygous or heterozygous for the F508del-CFTR mutation and who participated in studies VX13-661-103 (Study 103, NCT02070744), VX14-661-106 (Study 106, NCT02347657), VX14-661-107 (Study 107, NCT02516410), VX14-661-108 (Study 108, NCT02392234), VX14-661-109 (Study 109, NCT02412111), and VX14-661-111 (Study 111, NCT02508207). The study is designed to evaluate the safety and efficacy of long-term treatment of VX-661 in combination with ivacaftor.

Condition or disease Intervention/treatment Phase
Cystic Fibrosis Drug: TEZ/IVA Drug: IVA Phase 3

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 1044 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 3, Open-label, Rollover Study to Evaluate the Safety and Efficacy of Long Term Treatment With VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Homozygous or Heterozygous for the F508del-CFTR Mutation
Actual Study Start Date : August 2015
Actual Primary Completion Date : May 2019
Estimated Study Completion Date : March 2023

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Cystic Fibrosis
Drug Information available for: Ivacaftor

Arm Intervention/treatment
Experimental: Part A: TEZ/IVA
TEZ 100 mg/IVA150 mg fixed dose tablet once daily in the morning and IVA150 mg mono tablet once daily in the evening.
Drug: TEZ/IVA
Other Names:
  • VX-661/VX-770
  • tezacaftor/ivacaftor

Drug: IVA
Other Names:
  • VX-770
  • ivacaftor

Experimental: Part B: TEZ/IVA
TEZ 100 mg/IVA150 mg fixed dose tablet once daily in the morning and IVA150 mg mono tablet once daily in the evening.
Drug: TEZ/IVA
Other Names:
  • VX-661/VX-770
  • tezacaftor/ivacaftor

Drug: IVA
Other Names:
  • VX-770
  • ivacaftor

Experimental: Part C: TEZ/IVA
TEZ 100 mg/IVA150 mg fixed dose tablet once daily in the morning and IVA150 mg mono tablet once daily in the evening.
Drug: TEZ/IVA
Other Names:
  • VX-661/VX-770
  • tezacaftor/ivacaftor

Drug: IVA
Other Names:
  • VX-770
  • ivacaftor




Primary Outcome Measures :
  1. Part A: Safety and Tolerability as Assessed by Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs) [ Time Frame: Day 1 up to Week 100 ]

Secondary Outcome Measures :
  1. Part A: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  2. Part A: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  3. Part A: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 103/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported for TEZ/IVA-TEZ/IVA group (participants who received TEZ/IVA in both parent study 103 and in current study 110). Baseline was defined as the parent study baseline.

  4. Part A: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 111/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 111 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 111 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  5. Part A: Relative Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  6. Part A: Relative Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  7. Part A: Relative Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 103/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported for TEZ/IVA-TEZ/IVA group (participants who received TEZ/IVA in both parent study 103 and in current study 110). Baseline was defined as the parent study baseline.

  8. Part A: Relative Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) for 111/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 111 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 111 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  9. Part A: Number of Pulmonary Exacerbation (PEx) Events for 106/110 PEx Analysis Set [ Time Frame: From Baseline up to Study 110 Week 96 ]
    Pulmonary exacerbation was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  10. Part A: Number of Pulmonary Exacerbation (PEx) Events for 108/110 PEx Analysis Set [ Time Frame: From Baseline up to Week 96 ]
    Pulmonary exacerbation was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  11. Part A: Absolute Change in Body Mass Index (BMI) for 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    BMI was defined as weight in kilogram (kg) divided by height in square meter (m^2). Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  12. Part A: Absolute Change in Body Mass Index (BMI) for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    BMI was defined as weight in kg divided by height in square meter (m^2). Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  13. Part A: Absolute Change in Body Mass Index (BMI) for 103/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    BMI was defined as weight in kg divided by height in square meter (m^2). Data are reported for TEZ/IVA-TEZ/IVA group (participants who received TEZ/IVA in both parent study 103 and in current study 110). Baseline was defined as the parent study baseline.

  14. Part A: Absolute Change in Body Mass Index (BMI) for Study 111/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    BMI was defined as weight in kg divided by height in square meter (m^2). Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 111 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 111 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  15. Part A: Absolute Change in BMI Z-score for 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The z-score is a statistical measure to describe whether a mean was above or below the standard. A z-score of 0 is equal to the mean and is considered normal. Lower numbers indicate values lower than the mean and higher numbers indicate values higher than the mean. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  16. Part A: Absolute Change in BMI Z-score for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The z-score is a statistical measure to describe whether a mean was above or below the standard. A z-score of 0 is equal to the mean and is considered normal. Lower numbers indicate values lower than the mean and higher numbers indicate values higher than the mean. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  17. Part A: Absolute Change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score for 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The CFQ-R is a validated participant-reported outcome measuring health-related quality of life for participants with cystic fibrosis. Respiratory domain assessed respiratory symptoms, score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  18. Part A: Absolute Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The CFQ-R is a validated participant-reported outcome measuring health-related quality of life for participants with cystic fibrosis. Respiratory domain assessed respiratory symptoms, score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  19. Part A: Absolute Change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score for 103/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The CFQ-R is a validated participant-reported outcome measuring health-related quality of life for participants with cystic fibrosis. Respiratory domain assessed respiratory symptoms, score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life. Data are reported for TEZ/IVA-TEZ/IVA group (participants who received TEZ/IVA in both parent study 103 and in current study 110). Baseline was defined as the parent study baseline.

  20. Part A: Absolute Change in Body Weight for Study 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  21. Part A: Absolute Change in Body Weight for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  22. Part A: Absolute Change in Body Weight for 103/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    Data are reported for TEZ/IVA-TEZ/IVA group (participants who received TEZ/IVA in both parent study 103 and in current study 110). Baseline was defined as the parent study baseline.

  23. Part A: Absolute Change in Body Weight for 111/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 111 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 111 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  24. Part A: Absolute Change in Body Weight Z-score for 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The z-score is a statistical measure to describe whether a mean was above or below the standard. A z-score of 0 is equal to the mean and is considered normal. Lower numbers indicate values lower than the mean and higher numbers indicate values higher than the mean. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  25. Part A: Absolute Change in Body Weight Z-score for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The z-score is a statistical measure to describe whether a mean was above or below the standard. A z-score of 0 is equal to the mean and is considered normal. Lower numbers indicate values lower than the mean and higher numbers indicate values higher than the mean. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  26. Part A: Absolute Change in Height Z-score for 106/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The z-score is a statistical measure to describe whether a mean was above or below the standard. A z-score of 0 is equal to the mean and is considered normal. Lower numbers indicate values lower than the mean and higher numbers indicate values higher than the mean. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline except for Placebo-TEZ/IVA category, for which baseline was study 110 baseline.

  27. Part A: Absolute Change in Height Z-score for 108/110 Efficacy Set [ Time Frame: From Baseline at Study 110 Week 96 ]
    The z-score is a statistical measure to describe whether a mean was above or below the standard. A z-score of 0 is equal to the mean and is considered normal. Lower numbers indicate values lower than the mean and higher numbers indicate values higher than the mean. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan. Baseline was defined as the parent study baseline.

  28. Part A: Time-to-first Pulmonary Exacerbation (PEx) for 106/110 PEx Analysis Set [ Time Frame: 96 weeks ]
    Time-to-first pulmonary exacerbation was analyzed using Kaplan-Meier estimates and expressed in terms of event-free probability. PEx was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 106 and TEZ/IVA in current study 110) and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 106 and in current study 110) as per pre-specified analysis plan.

  29. Part A: Time-to-first Pulmonary Exacerbation (PEx) for 108/110 PEx Analysis Set [ Time Frame: 96 weeks ]
    Time-to-first pulmonary exacerbation was analyzed using Kaplan-Meier estimates and expressed in terms of event-free probability. PEx was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms. Data are reported separately for Placebo-TEZ/IVA category (participants who received placebo in parent study 108 and TEZ/IVA in current study 110); IVA-TEZ/IVA category (participants who received IVA monotherapy in parent study 108 and TEZ/IVA in current study 110); and TEZ/IVA-TEZ/IVA category (participants who received TEZ/IVA in both parent study 108 and in current study 110) as per pre-specified analysis plan.

  30. Part A: Plasma Concentrations of TEZ, TEZ Metabolite (M1-TEZ), Ivacaftor (IVA) and Ivacaftor Metabolite (M1-IVA) [ Time Frame: Week 24 ]


Information from the National Library of Medicine

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, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   12 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

Part A:

  • Subjects entering the Treatment Cohort must meet all of the following criteria:
  • Elect to enroll in the Treatment Cohort
  • Completed study drug Treatment Period in a parent study (NCT02070744, NCT02347657, NCT02516410, NCT02392234, NCT02412111) or study drug treatment and the Safety Follow up Visit for subjects from NCT02508207.
  • Willing to remain on a stable CF regimen through the Safety Follow-up Visit.
  • Subjects re-enrolling in the Part A Treatment Cohort must meet all of the following criteria:

    • Previously received at least 4 weeks of study drug before discontinuing in Part A of Study NCT02565914 to participate in another qualified Vertex study.
    • Completed the last required visit of another qualified Vertex study before or during the Returning Visit in Part A Study NCT02565914.
  • Subjects entering the Part A Observational Cohort must meet the following criteria:

    • <18 years of age (age on the date of informed consent/assent in the parent study)
    • Completed study drug Treatment Period in a parent study or study drug treatment and the Safety Follow up Visit for subjects from NCT02508207, but do not elect to enroll in the NCT02565914 Treatment Cohort; or
    • Received at least 4 weeks of study drug treatment and completed visits up to the last scheduled visit of the Treatment Period of a parent study (and the Safety Follow up Visit for subjects from NCT02508207), but do not meet eligibility criteria for enrollment into the Treatment Cohort

Part B:

Subjects who meet all of the following inclusion criteria will be eligible for Part B.

  • Did not withdraw consent from the parent study or Part A of Study NCT02565914.
  • Completed study drug treatment during the Treatment Period in Part A of - Willing to remain on a stable CF medication (and supplement) regimen through the 96 week visit of Study NCT02565914.

Subjects re enrolling in Part B must meet all of the following criteria:

  • Previously received at least 4 weeks of study drug before discontinuing Study NCT02565914 to participate in another qualified Vertex study, which is defined as a Vertex study of investigational CFTR modulators that allows participation of subjects in Study NCT02565914.
  • Completed the last required visit of another qualified Vertex study before or during the Returning Visit in Part B.
  • Willing to remain on a stable CF medication (and supplement) regimen through the 96 week visit in Part B.

Part C:

  • Subjects who meet all of the following inclusion criteria will be eligible for Part C.
  • Did not withdraw consent from Part B of Study NCT02565914.
  • Completed study drug treatment during Part B of NCT02565914.
  • Willing to remain on a stable CF medication (and supplement) regimen through the 96 week visit of Part C.

Exclusion Criteria:

  • History of any comorbidity that, in the opinion of the investigator, might confound the results of the study or pose an additional risk to the subject.
  • Pregnant and nursing females.
  • Sexually active subjects of reproductive potential who are not willing to follow the contraception requirements.
  • History of drug intolerance in the parent study that would pose an additional risk to the subject.
  • Participation in an investigational drug trial (including studies investigating VX-661/ivacaftor or lumacaftor/ivacaftor) other than the parent studies of NCT02565914 or other eligible Vertex studies investigating VX-661 in combination with ivacaftor, or use of a commercially available CFTR modulator.

Other protocol defined Inclusion/Exclusion criteria may apply.


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02565914


Locations
Show Show 159 study locations
Sponsors and Collaborators
Vertex Pharmaceuticals Incorporated
  Study Documents (Full-Text)

Documents provided by Vertex Pharmaceuticals Incorporated:
Study Protocol  [PDF] June 9, 2017
Statistical Analysis Plan  [PDF] March 20, 2019

Layout table for additonal information
Responsible Party: Vertex Pharmaceuticals Incorporated
ClinicalTrials.gov Identifier: NCT02565914    
Other Study ID Numbers: VX14-661-110
2014-004827-29 ( EudraCT Number )
First Posted: October 1, 2015    Key Record Dates
Results First Posted: June 16, 2020
Last Update Posted: June 16, 2020
Last Verified: May 2020
Additional relevant MeSH terms:
Layout table for MeSH terms
Cystic Fibrosis
Fibrosis
Pathologic Processes
Pancreatic Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Infant, Newborn, Diseases
Ivacaftor
Chloride Channel Agonists
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action