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A study lasting 220 weeks to assess a combined treatment called Tezacaftor and Ivacaftor in children aged 6 to 11 years who have Cystic Fibrosis

A Phase 3, Open-label, Rollover Study to Evaluate the Safety and Efficacy of Long-term Treatment With Tezacaftor in Combination With Ivacaftor in Subjects With Cystic Fibrosis Aged 6 Years and Older, Homozygous or Heterozygous for the F508del-CFTR Mutation

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2017-002968-40-BE
Enrollment
121
Registered
2018-03-30
Start date
2018-06-26
Completion date
Unknown
Last updated
2023-11-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cystic Fibrosis MedDRA version: 20.0 Level: PT Classification code 10011762 Term: Cystic fibrosis System Organ Class: 10010331 - Congenital, familial and genetic disorders

Interventions

Product Name: VX-661/ivacaftor 50 mg/ 75 mg Pharmaceutical Form: Film-coated tablet INN or Proposed INN: TEZACAFTOR CAS Number: 1152311-62-0 Current Sponsor code: VX661 Other descriptive name: VRT-893

Sponsors

Vertex Pharmaceuticals Incorporated
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Part A 1. Subject’s legally appointed and authorized representative will sign and date an informed consent form (ICF) and the subject will sign an assent form (if applicable). 2. Willing and able to comply with scheduled visits, treatment plan, study restrictions, laboratory tests, contraceptive guidelines, and other study procedures. 3. Completed the Week 24 Visit in Study 113B or the Week 8 Visit in Study 115. 4. Did not withdraw consent from the parent study. 5. Subjects must have a genotype listed in Appendix 1: CFTR Mutations.Appendix 1: CFTR Mutations. 6. Willing to remain on a stable CF medication regimen through the Safety Follow up Visit. Part B 1. Subject’s legally appointed and authorized representative will sign and date an informed consent form (ICF) and the subject will sign an assent form (if applicable). 2. Willing and able to comply with scheduled visits, treatment plan, study restrictions, laboratory tests, contraceptive guidelines, and other study procedures. 3. Completed the Week 96 Visit in Part A. 4. Did not withdraw consent from Part A. 5. Willing to remain on a stable CF medication regimen through the Safety Follow up Visit. Are the trial subjects under 18? yes Number of subjects for this age range: 121 F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. 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 subject. For example, history of cirrhosis with portal hypertension, and/or history of risk factors for Torsade de Pointes (e.g., familial long QT syndrome, hypokalemia, heart failure, left ventricular hypertrophy, bradycardia, myocardial infarction, cardiomyopathy, history of arrhythmia [ventricular and atrial fibrillation], obesity, acute neurologic events [subarachnoid hemorrhage, intracranial hemorrhage, cerebrovascular accident, and intracranial trauma], and autonomic neuropathy). 2. Pregnant and nursing females. Females who have achieved menarche must have a negative pregnancy test at the Day 1 Visit before receiving the first dose of study drug. 3. Sexually active subjects of reproductive potential who are not willing to follow the contraception requirements outlined. 4. History of drug intolerance in the parent study that would pose an additional risk to the subject in the opinion of the investigator, and which should be discussed with the Vertex medical monitor. Examples of subjects who may not be eligible for the study include (but are not limited to) the following: ? - Subjects with a history of allergy or hypersensitivity to the study drug ? - LFT abnormality during study drug treatment in the parent study or other qualified Vertex study that required permanent study drug discontinuation ? - Other severe or life-threatening reactions to the study drug in the previous study 5. History of poor compliance with study drug and/or procedures in a previous study as deemed by the investigator. 6. Ongoing participation in another study with investigational drug. Ongoing participation in a non-interventional study (including observational studies) is permitted. During the Part A Treatment Period, subjects may screen for another Vertex-sponsored study of CFTR modulators, excluding studies of IVA monotherapy and lumacaftor in combination with IVA. If a subject chooses to enroll in the other Vertex-sponsored study, they will be terminated from Study 116 and will not be allowed to re-enroll in Study 116 Part A. Part B 1. 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 subject. For example, history of cirrhosis with portal hypertension, and/or history of risk factors for Torsade de Pointes (e.g., familial long QT syndrome, hypokalemia, heart failure, left ventricular hypertrophy, bradycardia, cardiomyopathy, history of arrhythmia [ventricular and atrial fibrillation], obesity, acute neurologic events [subarachnoid hemorrhage, intracranial hemorrhage, and intracranial trauma], and autonomic neuropathy). 2. Pregnant and nursing females. All female subjects must have a negative pregnancy test at the Day 1 Visit of Part B before receiving the first dose of study drug (Section 11.4.2. 3. Sexually active subjects of reproductive potential who are not willing to follow the contraception requirements outlined in Section 11.4.8. 4. History of drug intolerance in the parent study or Part A that would pose an additional risk to the subject in the opinion of the investigator, and which should be discussed with the Vertex medical monitor. Examples of subjects who may not be eligible for the study include (but are not limited to) the following: • Subjects wi

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the long-term safety and tolerability of TEZ/IVA in subjects with CF aged 6 years and older, who are homozygous or heterozygous for F508del in Part A;Secondary Objective: To evaluate the long-term efficacy of TEZ/IVA in subjects with CF aged 6 years and older, who are homozygous or heterozygous for F508del in Part A To evaluate the long-term safety and tolerability of TEZ/IVA in subjects with CF aged 6 years and older, homozygous or heterozygous for the F508del mutation in Part B;Primary end point(s): Part A: Safety and tolerability of long-term TEZ/IVA treatment based on adverse events (AEs), clinical laboratory values (serum chemistry, hematology, lipids, and vitamins), standard 12-lead ECGs, physical examinations (PEs), vital signs, ophthalmologic examinations, and pulse oximetry.;Timepoint(s) of evaluation of this end point: From Baseline through Week 96 for Part A and Week 124 for Part B (this include the safety follow-up visit)

Secondary

MeasureTime frame
Secondary end point(s): Part A - Absolute change from baseline in lung clearance index2.5 (LCI2.5; for subjects from Study 115 and the Study 113 Part B LCI Substudy only) - Absolute change from baseline in sweat chloride - Absolute change from baseline in Cystic Fibrosis Questionnaire–Revised (CFQ-R) respiratory domain score - Absolute change from baseline in body mass index (BMI) Part B Safety and tolerability of long-term TEZ/IVA treatment based on AEs, serum liver function tests (LFTs), and ophthalmologic examinations.;Timepoint(s) of evaluation of this end point: From Baseline through week 96

Countries

Australia, Belgium, Canada, Denmark, France, Germany, Ireland, Poland, Switzerland, United Kingdom, United States

Contacts

Public ContactClinical Trials and Medical Info

Vertex Pharmaceuticals Incorporated

medicalinfo@vrtx.com+1877634 8789

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026