Evaluation of Long-term Safety and Efficacy of VX-445 Combination Therapy in Subjects With Cystic Fibrosis Who Are 6 Years of Age and Older

Sponsor
Vertex Pharmaceuticals Incorporated (Industry)
Overall Status
Active, not recruiting
CT.gov ID
NCT04183790
Collaborator
(none)
64
21
1
49.4
3
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Study Details

Study Description

Brief Summary

This study will evaluate the long-term safety, tolerability, efficacy, and pharmacodynamics of elexacaftor (ELX, VX-445) in triple combination (TC) with tezacaftor (TEZ) and ivacaftor (IVA) in subjects with cystic fibrosis (CF).

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
64 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase 3, Open-label Study Evaluating the Long-term Safety and Efficacy of VX-445/TEZ/IVA Combination Therapy in Subjects With Cystic Fibrosis Who Are 6 Years of Age and Older
Actual Study Start Date :
Feb 17, 2020
Anticipated Primary Completion Date :
Apr 1, 2024
Anticipated Study Completion Date :
Apr 1, 2024

Arms and Interventions

Arm Intervention/Treatment
Experimental: Triple Combination Arm

Subjects will receive ELX/TEZ/IVA TC in the morning and IVA as mono tablet in the evening.

Drug: ELX/TEZ/IVA
Fixed-dose combination (FDC) tablet for oral administration
Other Names:
  • VX-445/VX-661/VX-770
  • elexacaftor/tezacaftor/ivacaftor
  • Drug: IVA
    Mono tablet for oral administration.
    Other Names:
  • VX-770
  • ivacaftor
  • Outcome Measures

    Primary Outcome Measures

    1. Safety and tolerability as assessed by adverse events (AEs) and serious adverse events (SAEs) [From Baseline up to Week 196]

    Secondary Outcome Measures

    1. Absolute change in percent predicted forced expiratory volume in 1 second (ppFEV1) [From Baseline up to Week 192]

    2. Absolute change in sweat chloride (SwCl) [From Baseline up to Week 192]

    3. Absolute change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) respiratory domain score [From Baseline up to Week 192]

    4. Absolute change in body mass index (BMI) [From Baseline up to Week 192]

    5. Absolute change in BMI-for-age z-score [From Baseline up to Week 192]

    6. Number of pulmonary exacerbations (PEx) [From Baseline up to Week 192]

    7. Number of CF-related hospitalizations [From Baseline up to Week 192]

    8. Absolute change in lung clearance index 2.5 (LCI 2.5) [From Baseline up to Week 192]

    9. Absolute change in weight [From Baseline up to Week 192]

    10. Absolute change in weight-for-age z-score [From Baseline up to Week 192]

    11. Absolute change in height [From Baseline up to Week 192]

    12. Absolute change in height-for-age z-score [From Baseline up to Week 192]

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    6 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Key Inclusion Criteria:
    • Completed study drug treatment in parent study (VX18-445-106 Part B, NCT03691779), 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
    Key Exclusion Criteria:
    • History of study drug intolerance in parent study

    Other protocol defined Inclusion/Exclusion criteria may apply

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Children's Hospital of Orange County Orange California United States 92868
    2 Children's Hospital Colorado Aurora Colorado United States 80045
    3 Ann & Robert Lurie Children's Hospital of Chicago Chicago Illinois United States 60611
    4 Boston Children's Hospital Boston Massachusetts United States 02115
    5 Children's Respiratory and Critical Care Specialists, P.A., Children's Hospitals and Clinics of Minnesota Minneapolis Minnesota United States 55404
    6 The Children's Mercy Hospital Kansas City Missouri United States 64108
    7 Northwell Health- Long Island Jewish Medical Center New Hyde Park New York United States 11040
    8 Clinical Research of Charlotte Charlotte North Carolina United States 28277
    9 Rainbow Babies and Children's Hospital/University Hospitals Cleveland Medical Center Cleveland Ohio United States 44106
    10 Nationwide Children's Hospital Columbus Ohio United States 43205
    11 Oregon Health & Science University Portland Oregon United States 97239
    12 Texas Children's Hospital Houston Texas United States 77030
    13 Seattle Children's Hospital Seattle Washington United States 98105
    14 Queensland Children's Hospital South Brisbane Australia
    15 The Children's Hospital at Westmead Westmead Australia
    16 The Hospital for Sick Children Toronto Canada
    17 British Columbia's Children's Hospital Vancouver Canada
    18 Children's Health Ireland at Crumlin Dublin Ireland
    19 Children's Health Ireland at Temple Street Dublin Ireland
    20 Birmingham Children's Hospital - NHS Foundation Trust Birmingham United Kingdom
    21 Royal Brompton & Harefield NHS Foundation Trust, Royal Brompton Hospital London United Kingdom

    Sponsors and Collaborators

    • Vertex Pharmaceuticals Incorporated

    Investigators

    None specified.

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Vertex Pharmaceuticals Incorporated
    ClinicalTrials.gov Identifier:
    NCT04183790
    Other Study ID Numbers:
    • VX19-445-107
    • 2019-001827-11
    First Posted:
    Dec 3, 2019
    Last Update Posted:
    Feb 7, 2022
    Last Verified:
    Feb 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Feb 7, 2022