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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT04545515
Registration number
NCT04545515
Ethics application status
Date submitted
3/09/2020
Date registered
11/09/2020
Titles & IDs
Public title
A Study Evaluating the Long-term Safety and Efficacy of Elexacaftor/Tezacaftor/Ivacaftor in Cystic Fibrosis (CF) Particpants 6 Years and Older and F/MF Genotypes
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Scientific title
A Phase 3b Open-label Study Evaluating the Long-term Safety and Efficacy of Elexacaftor/Tezacaftor/Ivacaftor Combination Therapy in Cystic Fibrosis Subjects Ages 6 Years and Older Who Are Heterozygous for the F508del Mutation and a Minimal Function Mutation (F/MF)
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Secondary ID [1]
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2020-001404-42
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Secondary ID [2]
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VX20-445-119
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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
Treatment: Drugs - ELX/TEZ/IVA
Treatment: Drugs - IVA
Experimental: ELX/TEZ/IVA - Participants 6 to less than \<12 year of age and weighing \<30 kilogram (kg) at Day 1 received ELX 100 milligram (mg)/TEZ 50 mg /IVA 75 mg as fixed dose combination (FDC) tablets in the morning and IVA as mono tablet in the evening and those weighing more than or equal to (=) 30 kg at Day 1 received ELX 200 mg/TEZ 100 mg /IVA 150 mg as FDC tablets in the morning and IVA as mono tablet in the evening for 96 weeks. Doses were adjusted upward with subsequent changes in weight. Participants =12 years age at Day 1 received ELX 200 mg/TEZ 100 mg/IVA 150 mg as FDC tablets in the morning and IVA as mono tablet in the evening for 96 weeks.
Treatment: Drugs: ELX/TEZ/IVA
Fixed dose combination (FDC) tablets for oral administration.
Treatment: Drugs: IVA
Tablet for oral administration.
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Intervention code [1]
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Treatment: Drugs
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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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Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
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Assessment method [1]
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Timepoint [1]
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From Baseline up to Week 100
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Secondary outcome [1]
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Absolute Change From Parent Study Baseline in Sweat Chloride (SwCl)
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Assessment method [1]
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Sweat samples were collected using an approved collection device.
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Timepoint [1]
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From Parent Study Baseline to Week 96
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Secondary outcome [2]
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Absolute Change From Parent Study Baseline in Lung Clearance Index 2.5 (LCI2.5)
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Assessment method [2]
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The LCI2.5 index is the number of lung turnovers required to reduce the end tidal inert gas concentration to 1/40th of its starting values and is calculated by dividing the sum of exhaled tidal breaths (cumulative exhaled volume (CEV)) by simultaneously measured functional residual capacity (FRC). An LCI of 7.5 and below is normal; values greater than 7.5 are abnormal. LCI is able to detect abnormalities in lung function earlier than more traditional modalities such as spirometry.
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Timepoint [2]
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From Parent Study Baseline to Week 96
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Eligibility
Key inclusion criteria
Key
* Completed study drug treatment in parent study (VX19-445-116, NCT04353817), or had study drug interruption(s) in parent study but completed study visits up to the last scheduled visit of the treatment period in the parent study
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Minimum age
6
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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 study drug intolerance in the parent study
Other protocol defined Inclusion/Exclusion criteria may apply
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Study design
Purpose of the study
Treatment
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Allocation to intervention
NA
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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
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 3
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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
11/01/2021
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Date of last participant enrolment
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Date of last data collection
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Actual
24/03/2023
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Sample size
Target
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Accrual to date
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Final
120
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Recruitment in Australia
Recruitment state(s)
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Recruitment hospital [1]
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Telethon Kids Institute - Nedlands
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Recruitment hospital [2]
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Queensland Children's Hospital - South Brisbane
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Recruitment hospital [3]
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The Children's Hospital at Westmead - Westmead
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Recruitment postcode(s) [1]
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- Nedlands
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Recruitment postcode(s) [2]
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- South Brisbane
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Recruitment postcode(s) [3]
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- Westmead
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Recruitment outside Australia
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Canada
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Montreal
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France
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Koeln
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Israel
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Petach Tikvah
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United Kingdom
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Southampton
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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
The study evaluates the long-term safety and efficacy of elexacaftor (ELX)/tezacaftor (TEZ)/ivacaftor (IVA) triple combination (TC) in participants with CF who are 6 years of age and older with F/MF genotypes.
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Trial website
https://clinicaltrials.gov/study/NCT04545515
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Trial related presentations / publications
Southern KW, Murphy J, Sinha IP, Nevitt SJ. Corrector therapies (with or without potentiators) for people with cystic fibrosis with class II CFTR gene variants (most commonly F508del). Cochrane Database Syst Rev. 2020 Dec 17;12(12):CD010966. doi: 10.1002/14651858.CD010966.pub3.
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Public notes
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Contacts
Principal investigator
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
Details on Vertex data sharing criteria and process for requesting access can be found at: https://www.vrtx.com/independent-research/clinical-trial-data-sharing
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What supporting documents are/will be available?
No Supporting Document Provided
Type
Other Details
Attachment
Study protocol
https://cdn.clinicaltrials.gov/large-docs/15/NCT04545515/Prot_000.pdf
Statistical analysis plan
https://cdn.clinicaltrials.gov/large-docs/15/NCT04545515/SAP_001.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT04545515