Clinical Trial Results:
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)
Summary
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EudraCT number |
2014-004787-37 |
Trial protocol |
AT DE ES |
Global end of trial date |
12 Aug 2016
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Results information
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Results version number |
v1(current) |
This version publication date |
01 Mar 2017
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First version publication date |
01 Mar 2017
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
VX14-661-107
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT02516410 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Vertex Pharmaceuticals Incorporated
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Sponsor organisation address |
50 Northern Avenue, Boston, Massachusetts, United States, 02210-1862
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Public contact |
Medical Monitor, Vertex Pharmaceuticals Incorporated, 1 617-341-6777, medicalinfo@vrtx.com
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Scientific contact |
Medical Monitor, Vertex Pharmaceuticals Incorporated, 1 617-341-6777, medicalinfo@vrtx.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
Yes
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EMA paediatric investigation plan number(s) |
EMEA-001640-PIP01-14 | ||
Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
03 Oct 2016
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
12 Aug 2016
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
To evaluate the efficacy of VX-661 in combination with ivacaftor through Week 12 in subjects with cystic fibrosis (CF) who are heterozygous for the F508del- CF transmembrane conductance regulator (CFTR) gene and with a second CFTR mutation that is not likely to respond to VX-661 and/or ivacaftor therapy (F508del/not responsive [NR]).
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Protection of trial subjects |
The study was conducted in accordance with the ethical principles stated in the Declaration of Helsinki and the International Conference on Harmonization (ICH) Guideline for Good Clinical Practice (GCP).
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
15 Aug 2015
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
Yes
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
United States: 89
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Country: Number of subjects enrolled |
Israel: 24
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Country: Number of subjects enrolled |
Australia: 17
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Country: Number of subjects enrolled |
Austria: 16
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Country: Number of subjects enrolled |
France: 15
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Country: Number of subjects enrolled |
Canada: 4
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Country: Number of subjects enrolled |
Spain: 3
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Worldwide total number of subjects |
168
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EEA total number of subjects |
34
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
37
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Adults (18-64 years) |
131
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From 65 to 84 years |
0
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85 years and over |
0
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Recruitment
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Recruitment details |
The study was conducted across 38 sites in 7 countries. | ||||||||||||||||||
Pre-assignment
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Screening details |
A total of 168 subjects were randomized and treated in the study. | ||||||||||||||||||
Period 1
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Period 1 title |
Overall Trial (overall period)
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Is this the baseline period? |
Yes | ||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | ||||||||||||||||||
Roles blinded |
Subject, Investigator, Carer | ||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Placebo | ||||||||||||||||||
Arm description |
Placebo matched to VX-661 plus Ivacaftor (IVA, VX-770) fixed dose combination (FDC) tablet administered orally in the morning and placebo matched to IVA film-coated tablet administered orally in the evening up to Week 12. | ||||||||||||||||||
Arm type |
Placebo | ||||||||||||||||||
Investigational medicinal product name |
Placebo (matched to VX-661 plus IVA)
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Film-coated tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Placebo matched to VX-661 plus IVA supplied as FDC tablet administered orally in the morning up to Week 12.
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Investigational medicinal product name |
Placebo (matched to IVA)
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Film-coated tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Placebo matched to IVA film-coated tablet administered orally in the evening up to Week 12.
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Arm title
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VX-661/IVA | ||||||||||||||||||
Arm description |
VX-661 100 milligram (mg) plus IVA 150 mg FDC tablet administered orally in the morning and IVA 150 mg film-coated tablet administered orally in the evening up to Week 12. | ||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||
Investigational medicinal product name |
VX-661 Plus IVA Fixed Dose Combination
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Film-coated tablet
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Routes of administration |
Oral use
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Dosage and administration details |
VX-661 100 mg plus IVA 150 mg supplied as FDC tablet administered orally in the morning up to Week 12.
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Investigational medicinal product name |
Ivacaftor
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Investigational medicinal product code |
VX-770
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Other name |
Kalydeco
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Pharmaceutical forms |
Film-coated tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Ivacaftor 150 mg film-coated tablet administered orally in the evening up to Week 12.
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Baseline characteristics reporting groups
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Reporting group title |
Placebo
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Reporting group description |
Placebo matched to VX-661 plus Ivacaftor (IVA, VX-770) fixed dose combination (FDC) tablet administered orally in the morning and placebo matched to IVA film-coated tablet administered orally in the evening up to Week 12. | ||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
VX-661/IVA
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Reporting group description |
VX-661 100 milligram (mg) plus IVA 150 mg FDC tablet administered orally in the morning and IVA 150 mg film-coated tablet administered orally in the evening up to Week 12. | ||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Placebo
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Reporting group description |
Placebo matched to VX-661 plus Ivacaftor (IVA, VX-770) fixed dose combination (FDC) tablet administered orally in the morning and placebo matched to IVA film-coated tablet administered orally in the evening up to Week 12. | ||
Reporting group title |
VX-661/IVA
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Reporting group description |
VX-661 100 milligram (mg) plus IVA 150 mg FDC tablet administered orally in the morning and IVA 150 mg film-coated tablet administered orally in the evening up to Week 12. |
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End point title |
Absolute Change From Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1) Through Week 12 | ||||||||||||
End point description |
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 subjects 18 years and older and female subjects 16 years and older. The Wang standard was used for male subjects aged 12 to 17 years and for female subjects aged 12 to 15 years. Full Analysis Set (FAS) included all randomized subjects who received at least 1 dose of study drug. Here 'Number of subjects analysed' signifies those subjects who were evaluable for this endpoint.
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End point type |
Primary
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End point timeframe |
Baseline through Week 12
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Statistical analysis title |
Change in percent predicted FEV1 Through Week 12 | ||||||||||||
Comparison groups |
Placebo v VX-661/IVA
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Number of subjects included in analysis |
167
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
= 0.1176 | ||||||||||||
Method |
Mixed-effect repeated measure (MMRM) | ||||||||||||
Parameter type |
Least Squares (LS) Mean Difference | ||||||||||||
Point estimate |
1.2
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
-0.3 | ||||||||||||
upper limit |
2.6 |
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Adverse events information
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Timeframe for reporting adverse events |
Baseline up to Week 16
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
19.1
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Reporting groups
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Reporting group title |
Placebo
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Reporting group description |
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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
VX-661/IVA
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Reporting group description |
VX-661 100 mg plus IVA 150 mg FDC tablet administered orally in the morning and IVA 150 mg film-coated tablet administered orally in the evening up to Week 12. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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15 May 2015 |
- Increased the number of planned subjects to account for an interim analysis for futility. - Added washout requirements for subjects who have previously used a commercially available CFTR modulator. - For < 18 years of age, added post-dose spirometry assessments and added ophthalmologic examination at the Early Treatment Termination (ETT) Visit or Safety Follow-up Visit. |
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15 Apr 2016 |
- Added that ophthalmologic examinations were not required for subjects with documentation of bilateral lens removal.
- Specified that the sweat chloride test at screening is optional if the subject’s medical record is used to establish eligibility.
- Allowed CFTR genotype information from a previous CFTR genotype laboratory report to be used in cases where results from genotype assessment at screening are not available before randomization.
- Removed Pittsburgh Sleep Quality Index (PSQI) assessment at Day 15.
- Revised the description of the timing of the spirometry assessment relative to bronchodilator use.
- Added a window of ± 15 minutes around the nominal times for all postdose ECG assessments.
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |