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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/show/NCT03460990




Registration number
NCT03460990
Ethics application status
Date submitted
1/03/2018
Date registered
9/03/2018
Date last updated
17/10/2019

Titles & IDs
Public title
A Study of VX-659 Combination Therapy in CF Subjects Homozygous for F508del (F/F)
Scientific title
A Phase 3, Randomized, Double-blind, Controlled Study Evaluating the Efficacy and Safety of VX-659 Combination Therapy in Subjects With Cystic Fibrosis Who Are Homozygous for the F508del Mutation (F/F)
Secondary ID [1] 0 0
2017-004133-82
Secondary ID [2] 0 0
VX17-659-103
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Cystic Fibrosis 0 0
Condition category
Condition code
Human Genetics and Inherited Disorders 0 0 0 0
Cystic fibrosis
Respiratory 0 0 0 0
Other respiratory disorders / diseases
Oral and Gastrointestinal 0 0 0 0
Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon
Inflammatory and Immune System 0 0 0 0
Connective tissue diseases
Inflammatory and Immune System 0 0 0 0
Other inflammatory or immune system disorders

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - VX-659/TEZ/IVA
Treatment: Drugs - TEZ/IVA
Treatment: Drugs - IVA
Treatment: Drugs - Placebo
Treatment: Drugs - Placebo

Active Comparator: TEZ/IVA - Following a run-in period of 4 weeks with Tezacaftor (TEZ)/Ivacaftor (IVA), participants received TEZ 100 milligram (mg)/IVA 150 mg as fixed-dose combination (FDC) tablet in the morning and IVA 150 mg as mono tablet in the evening for 4 weeks in the triple combination (TC) treatment period.

Experimental: VX-659/TEZ/IVA TC - Following a run-in period of 4 weeks with TEZ/IVA, participants received VX-659 240 mg/TEZ 100 mg/IVA 150 mg as FDC tablets in the morning and IVA 150 mg as mono tablet in the evening for 4 weeks in the TC treatment period.


Treatment: Drugs: VX-659/TEZ/IVA
Participants received VX-659/TEZ/IVA orally once daily in the morning.

Treatment: Drugs: TEZ/IVA
Participants received TEZ/IVA orally once daily in the morning.

Treatment: Drugs: IVA
Participants received IVA orally once daily in the evening.

Treatment: Drugs: Placebo
Participants received placebo matched TEZ/IVA orally once daily in the morning.

Treatment: Drugs: Placebo
Participants received placebo matched to VX-659/TEZ/IVA orally once daily in the morning.

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) - FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.
Timepoint [1] 0 0
From Baseline at Week 4
Secondary outcome [1] 0 0
Absolute Change in Sweat Chloride (SwCl) - Sweat samples were collected using an approved collection device.
Timepoint [1] 0 0
From Baseline at Week 4
Secondary outcome [2] 0 0
Absolute Change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score - 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.
Timepoint [2] 0 0
From Baseline at Week 4
Secondary outcome [3] 0 0
Safety and Tolerability as Assessed Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
Timepoint [3] 0 0
From first dose of study drug in TC treatment period up to 28 days after last dose of study drug or to the completion of study participation date, whichever occurs first (up to Week 8)
Secondary outcome [4] 0 0
Observed Pre-Dose Concentration (Ctrough) of VX-659, TEZ, TEZ Metabolite (M1-TEZ), and IVA
Timepoint [4] 0 0
From Day 1 and Week 4

Eligibility
Key inclusion criteria
Key

- Homozygous for the F508del mutation (F/F)

- Forced expiratory volume in 1 second (FEV1) value =40% and =90% of predicted mean for
age, sex, and height

Key
Minimum age
12 Years
Maximum age
No limit
Gender
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- Clinically significant cirrhosis with or without portal hypertension

- Lung infection with organisms associated with a more rapid decline in pulmonary status

- Solid organ or hematological transplantation

Other protocol defined Inclusion/Exclusion criteria may apply

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint(s)
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
VIC
Recruitment hospital [1] 0 0
The Alfred Hospital - Melbourne
Recruitment hospital [2] 0 0
Royal Adelaide Hospital - Adelaide
Recruitment hospital [3] 0 0
Prince Charles Hospital - Chermside
Recruitment hospital [4] 0 0
Institute for Respiratory Health Inc./ Sir Charles Gairdner Hospital - Nedlands
Recruitment hospital [5] 0 0
John Hunter Hospital & Hunter Medical Research Institute - New Lambton Heights
Recruitment postcode(s) [1] 0 0
- Melbourne
Recruitment postcode(s) [2] 0 0
- Adelaide
Recruitment postcode(s) [3] 0 0
- Chermside
Recruitment postcode(s) [4] 0 0
- Nedlands
Recruitment postcode(s) [5] 0 0
- New Lambton Heights
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Alabama
Country [2] 0 0
United States of America
State/province [2] 0 0
Connecticut
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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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Idaho
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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
State/province [7] 0 0
Iowa
Country [8] 0 0
United States of America
State/province [8] 0 0
Maryland
Country [9] 0 0
United States of America
State/province [9] 0 0
Massachusetts
Country [10] 0 0
United States of America
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Michigan
Country [11] 0 0
United States of America
State/province [11] 0 0
Missouri
Country [12] 0 0
United States of America
State/province [12] 0 0
New Jersey
Country [13] 0 0
United States of America
State/province [13] 0 0
New York
Country [14] 0 0
United States of America
State/province [14] 0 0
Ohio
Country [15] 0 0
United States of America
State/province [15] 0 0
Oklahoma
Country [16] 0 0
United States of America
State/province [16] 0 0
Oregon
Country [17] 0 0
United States of America
State/province [17] 0 0
Pennsylvania
Country [18] 0 0
United States of America
State/province [18] 0 0
South Dakota
Country [19] 0 0
United States of America
State/province [19] 0 0
Tennessee
Country [20] 0 0
United States of America
State/province [20] 0 0
Texas
Country [21] 0 0
United States of America
State/province [21] 0 0
Utah
Country [22] 0 0
United States of America
State/province [22] 0 0
Washington
Country [23] 0 0
Germany
State/province [23] 0 0
Berlin
Country [24] 0 0
Germany
State/province [24] 0 0
Muenchen
Country [25] 0 0
Ireland
State/province [25] 0 0
Dublin
Country [26] 0 0
Spain
State/province [26] 0 0
Barcelona
Country [27] 0 0
Spain
State/province [27] 0 0
Sevilla
Country [28] 0 0
United Kingdom
State/province [28] 0 0
Cambridge
Country [29] 0 0
United Kingdom
State/province [29] 0 0
Liverpool
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United Kingdom
State/province [30] 0 0
London
Country [31] 0 0
United Kingdom
State/province [31] 0 0
Manchester
Country [32] 0 0
United Kingdom
State/province [32] 0 0
Penarth

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Vertex Pharmaceuticals Incorporated
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
This study will evaluate the efficacy of VX-659 in triple combination (TC) with tezacaftor
(TEZ) and ivacaftor (IVA) in subjects with cystic fibrosis (CF) who are homozygous for the
F508del mutation (F/F).
Trial website
https://clinicaltrials.gov/show/NCT03460990
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications