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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02516410
Registration number
NCT02516410
Ethics application status
Date submitted
28/07/2015
Date registered
5/08/2015
Date last updated
12/06/2018
Titles & IDs
Public 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
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Scientific title
A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group 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 and With a Second CFTR Mutation That Is Not Likely to Respond to VX-661 and/or Ivacaftor Therapy (F508del/NR)
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Secondary ID [1]
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2014-004787-37
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Secondary ID [2]
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VX14-661-107
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Cystic Fibrosis
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Condition category
Condition code
Human Genetics and Inherited Disorders
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Cystic fibrosis
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Respiratory
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Other respiratory disorders / diseases
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Oral and Gastrointestinal
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Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon
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Inflammatory and Immune System
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Connective tissue diseases
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Inflammatory and Immune System
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Other inflammatory or immune system disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Experimental: VX-661/IVA - VX-661 100 milligram (mg) plus IVA 150 mg fixed dose combination (FDC) tablet administered orally in the morning and IVA 150 mg film-coated tablet administered orally in the evening up to Week 12.
Placebo comparator: Placebo - Placebo matched to VX-661 plus IVA FDC tablet administered orally in the morning and placebo matched to IVA film-coated tablet administered orally in the evening up to Week 12.
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Absolute Change From Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1) Through Week 12
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Assessment method [1]
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FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Hankinson and Wang standards were used to calculate percent predicted FEV1 (for age, gender, and height). The Hankinson standard was used for male participants 18 years and older and female participants 16 years and older. The Wang standard was used for male participants aged 12 to 17 years and for female participants aged 12 to 15 years.
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Timepoint [1]
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Baseline, Through Week 12
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Secondary outcome [1]
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Absolute Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score Through Week 12
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Assessment method [1]
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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 (for example, coughing, congestion, wheezing), score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life.
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Timepoint [1]
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Baseline, Through Week 12
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Secondary outcome [2]
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Number of Pulmonary Exacerbation Events
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Assessment method [2]
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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. The number of events were reported.
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Timepoint [2]
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Baseline through Week 12
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Secondary outcome [3]
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Number of Pulmonary Exacerbation Events Per Year
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Assessment method [3]
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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. Total number of days on study is equal to the Week 12 date or the last dose date (whichever occurs last) minus first dose date plus 1. The total number of years (48 weeks) on study is equal to the total number of days on study divided by 336. Pulmonary exacerbation events per year (48 weeks) are reported.
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Timepoint [3]
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Baseline through Week 12
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Secondary outcome [4]
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Absolute Change From Baseline in Body Mass Index (BMI) at Week 12
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Assessment method [4]
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BMI was defined as weight in kilogram (kg) divided by height\*height in square meter (m\^2).
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Timepoint [4]
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Baseline, Week 12
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Secondary outcome [5]
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Relative Change From Baseline in Percent Predicted FEV1 Through Week 12
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Assessment method [5]
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FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Hankinson and Wang standards were used to calculate percent predicted FEV1 (for age, gender, and height). The Hankinson standard was used for male participants 18 years and older and female participants 16 years and older. The Wang standard was used for male participants aged 12 to 17 years and for female participants aged 12 to 15 years.
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Timepoint [5]
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Baseline, Through Week 12
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Secondary outcome [6]
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Absolute Change From Baseline in Sweat Chloride Through Week 12
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Assessment method [6]
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Sweat samples were collected using an approved collection device.
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Timepoint [6]
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Baseline, Through Week 12
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Secondary outcome [7]
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Number of Participants With at Least One Pulmonary Exacerbation Through Week 12
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Assessment method [7]
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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. Time-to-first pulmonary exacerbation was planned to be estimated using Kaplan-Meier (KM) estimates. However, due to less than 50% of events, time-to-first event data was not estimated. Instead, number of participants with at least one pulmonary exacerbation event were collected and are reported.
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Timepoint [7]
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Baseline through Week 12
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Secondary outcome [8]
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Absolute Change From Baseline in BMI Z-score at Week 12 (in Participants Less Than [<] 20 Years Old at the Time of Screening)
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Assessment method [8]
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Z-score is a statistical measure to evaluate how a single data point compares to a standard. It describes whether a mean was above or below the standard and how unusual the measurement is, with range from infinity to +infinity; where 0: same mean, \>0: a greater mean, and \<0: a lesser mean than the standard. BMI, adjusted for age and sex, was analyzed as BMI-for-age Z-score (BMI z-score). BMI-for-age z-score was calculated by using centers for disease control and prevention (CDC) growth charts for the paediatric population.
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Timepoint [8]
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Baseline, Week 12
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Secondary outcome [9]
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Absolute Change From Baseline in Body Weight at Week 12
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Assessment method [9]
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Timepoint [9]
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Baseline, Week 12
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Secondary outcome [10]
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Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
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Assessment method [10]
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AE: any untoward medical occurrence in a participant during the study; the event does not necessarily have a causal relationship with the treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after the informed consent form is signed. AE includes serious as well as non-serious AEs. SAE (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, inpatient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Any AE that increased in severity or newly developed at or after initial dosing of study drug to Week 16 was considered treatment-emergent.
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Timepoint [10]
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Baseline up to Week 16
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Secondary outcome [11]
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Trough Plasma Concentrations (Ctrough) of VX-661, VX-661 Metabolite (M1 VX-661), Ivacaftor (IVA) and IVA Metabolite (M1-IVA)
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Assessment method [11]
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This outcome was not planned to be assessed in Placebo arm.
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Timepoint [11]
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Pre-morning dose on Week 2, Week 4, Week 8 and Week 12
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Eligibility
Key inclusion criteria
* Confirmed diagnosis of CF defined as a sweat chloride value greater than or equal to (>=)60 millimole per liter (mmol/L) by quantitative pilocarpine iontophoresis.
* Heterozygous for the F508del-CFTR mutation and with a second CFTR mutation that is not likely to respond to VX-661 and/or ivacaftor therapy, genotype to be confirmed via assessment at the Screening Visit.
* Forced Expiratory Volume in 1 Second (FEV1) >=40 percent (%) and less than or equal to (<=)90% of predicted normal for age, sex, and height at Screening Visit.
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Minimum age
12
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key 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 in administering study drug to the participant.
* An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy (including antibiotics) for pulmonary disease within 28 days before Day 1 (first dose of study drug).
* History of solid organ or hematological transplantation.
* Ongoing or prior participation in an investigational drug study or use of commercially available CFTR modulator within 30 days of screening.
* Pregnant or nursing females.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 3
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/08/2015
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
7/06/2016
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Sample size
Target
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Accrual to date
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Final
168
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Recruitment in Australia
Recruitment state(s)
QLD
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Recruitment hospital [1]
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- Brisban
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Recruitment hospital [2]
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- Chermside
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Recruitment hospital [3]
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- Herston
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Recruitment hospital [4]
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- Innsbruck
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Recruitment hospital [5]
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- Westmead
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Recruitment postcode(s) [1]
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- Brisban
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Recruitment postcode(s) [2]
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- Chermside
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Recruitment postcode(s) [3]
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- Herston
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Recruitment postcode(s) [4]
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- Innsbruck
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Recruitment postcode(s) [5]
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- Westmead
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Recruitment outside Australia
Country [1]
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United States of America
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Alabama
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United States of America
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California
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Colorado
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United States of America
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Florida
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United States of America
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Georgia
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United States of America
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Illinois
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United States of America
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Indiana
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United States of America
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Louisiana
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Michigan
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Minnesota
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Missouri
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Nebraska
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New York
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Ohio
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Tennessee
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Texas
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Virginia
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Washington
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Austria
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Graz
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Austria
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Innsbruck
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Austria
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Salzburg
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Canada
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British Columbia
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Canada
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Montreal
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France
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Bron Cedex
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France
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Montpellier Cedex 5
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France
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Paris Cedex 14
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France
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Paris Cedex 19
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France
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Paris
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Israel
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Haifa
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Israel
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Hashomer
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Israel
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Jerusalem
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Israel
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Petah Tikva
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Spain
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Barcelona
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Spain
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Valencia
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Vertex Pharmaceuticals Incorporated
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Address
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Ethics approval
Ethics application status
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Summary
Brief summary
Study to evaluate the efficacy of VX-661 in combination with ivacaftor (IVA, VX-770) through Week 12 in participants with cystic fibrosis (CF) who are heterozygous for the F508del mutation on the CF transmembrane conductance regulator (CFTR) gene and with a second CFTR mutation that is not likely to respond to VX-661 and/or IVA therapy (F508del/not responsive \[NR\]).
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Trial website
https://clinicaltrials.gov/study/NCT02516410
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Trial related presentations / publications
Munck A, Kerem E, Ellemunter H, Campbell D, Wang LT, Ahluwalia N, Owen CA, Wainwright C. Tezacaftor/ivacaftor in people with cystic fibrosis heterozygous for minimal function CFTR mutations. J Cyst Fibros. 2020 Nov;19(6):962-968. doi: 10.1016/j.jcf.2020.04.015. Epub 2020 Jun 13.
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Public notes
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Contacts
Principal investigator
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Contact person for public queries
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT02516410
Download to PDF