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Study to Evaluate Elexacaftor/Tezacaftor/Ivacaftor (ELX/TEZ/IVA) Long-term Safety and Efficacy in Subjects Without F508del

A Phase 3 Open-label Study Evaluating the Long-term Safety and Efficacy of Elexacaftor/Tezacaftor/Ivacaftor in Cystic Fibrosis Subjects With Non-F508del CFTR Genotypes

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05331183
Enrollment
297
Registered
2022-04-15
Start date
2022-11-23
Completion date
2027-04-06
Last updated
2026-09-10

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

Conditions

Cystic Fibrosis

Brief summary

This study will evaluate the long-term safety, efficacy and pharmacodynamics of ELX/TEZ/IVA in participants with cystic fibrosis (CF) with at least 1 non-F508del ELX/TEZ/IVA-responsive CF transmembrane conductance regulator (CFTR) gene mutation.

Interventions

DRUGELX/TEZ/IVA

Fixed-dose combination (FDC) tablets for oral administration.

DRUGIVA

Tablets for oral administration.

Sponsors

Vertex Pharmaceuticals Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: Part A: Completed study drug treatment in parent study 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 Part B: Completed study drug treatment in Part A or had study drug interruption(s) in Part A but completed study visits up to the last scheduled visit of the treatment period of Part A Key

Exclusion criteria

History of study drug intolerance in the parent study Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frame
Parts A and B: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Day 1 up to Week 196

Secondary

MeasureTime frame
Part A: Absolute Change in Percent Predicted Forced Expiratory Volume in 1 second (ppFEV1)From Baseline up to Week 96
Part A: Absolute Change in Sweat Chloride (SwCl)From Baseline up to Week 96
Part A: Absolute Change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain (RD) ScoreFrom Baseline up to Week 96
Part A: Absolute Change in Body Mass Index (BMI)From Baseline up to Week 96
Part A: Absolute Change in WeightFrom Baseline up to Week 96
Part A: Number of Pulmonary Exacerbations (PEx)From Baseline up to Week 96

Countries

Austria, Belgium, Canada, Czechia, France, Germany, Hungary, Italy, Netherlands, Norway, Poland, Portugal, Spain, Sweden, Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 11, 2026