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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

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ClinicalTrials.gov Identifier: NCT04183790
Recruitment Status : Active, not recruiting
First Posted : December 3, 2019
Last Update Posted : September 16, 2021
Sponsor:
Information provided by (Responsible Party):
Vertex Pharmaceuticals Incorporated

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
Cystic Fibrosis Drug: ELX/TEZ/IVA Drug: IVA Phase 3

Expanded Access : An investigational treatment associated with this study has been approved for sale to the public.   More info ...

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Study Type : Interventional  (Clinical Trial)
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 : February 17, 2020
Estimated Primary Completion Date : April 2024
Estimated Study Completion Date : April 2024

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Cystic Fibrosis

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




Primary Outcome Measures :
  1. Safety and tolerability as assessed by adverse events (AEs) and serious adverse events (SAEs) [ Time Frame: From Baseline up to Week 196 ]

Secondary Outcome Measures :
  1. Absolute change in percent predicted forced expiratory volume in 1 second (ppFEV1) [ Time Frame: From Baseline up to Week 192 ]
  2. Absolute change in sweat chloride (SwCl) [ Time Frame: From Baseline up to Week 192 ]
  3. Absolute change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) respiratory domain score [ Time Frame: From Baseline up to Week 192 ]
  4. Absolute change in body mass index (BMI) [ Time Frame: From Baseline up to Week 192 ]
  5. Absolute change in BMI-for-age z-score [ Time Frame: From Baseline up to Week 192 ]
  6. Number of pulmonary exacerbations (PEx) [ Time Frame: From Baseline up to Week 192 ]
  7. Number of CF-related hospitalizations [ Time Frame: From Baseline up to Week 192 ]
  8. Absolute change in lung clearance index 2.5 (LCI 2.5) [ Time Frame: From Baseline up to Week 192 ]
  9. Absolute change in weight [ Time Frame: From Baseline up to Week 192 ]
  10. Absolute change in weight-for-age z-score [ Time Frame: From Baseline up to Week 192 ]
  11. Absolute change in height [ Time Frame: From Baseline up to Week 192 ]
  12. Absolute change in height-for-age z-score [ Time Frame: From Baseline up to Week 192 ]


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Ages Eligible for Study:   6 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

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


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04183790


Locations
Show Show 21 study locations
Sponsors and Collaborators
Vertex Pharmaceuticals Incorporated
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Vertex Pharmaceuticals Incorporated
ClinicalTrials.gov Identifier: NCT04183790    
Other Study ID Numbers: VX19-445-107
2019-001827-11 ( EudraCT Number )
First Posted: December 3, 2019    Key Record Dates
Last Update Posted: September 16, 2021
Last Verified: February 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Plan Description: 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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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Cystic Fibrosis
Fibrosis
Pathologic Processes
Pancreatic Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Infant, Newborn, Diseases
Ivacaftor
Elexacaftor
Chloride Channel Agonists
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action