CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 507 enrolled
Drug / intervention
ELX/TEZ/IVA +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03525574
NCT03525574Phase 3Completed

A Phase 3, Open-label Study Evaluating the Long-term Safety and Efficacy of VX-445 Combination Therapy in Subjects With Cystic Fibrosis Who Are Homozygous or Heterozygous for the F508del Mutation

Vertex Pharmaceuticals Incorporated·interventional·Posted May 15, 2018·Updated Sep 24, 2025

In Brief

A Phase 3 clinical trial evaluating ELX/TEZ/IVA and IVA for Cystic Fibrosis. Completed, enrolled 507 participants across 110 sites in 13 countries.

Detailed Summary

The study evaluates the long-term safety and tolerability of VX-445 in triple combination (TC) with tezacaftor (TEZ) and ivacaftor (IVA) in subjects with cystic fibrosis (CF) who are homozygous or heterozygous for the F508del mutation

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsCystic Fibrosis
CountriesAustralia, Austria, Belgium, Canada, Czechia, France, Germany, Greece, Italy, Netherlands, Sweden, United Kingdom, United States
Collaborators--

Timeline

Phase 3CompletedFinished
20192020202120222023202420252026
First PostedMay 15, 2018
Enrollment StartOct 9, 2018
Primary CompletionJan 9, 2023
TodayJul 2, 2026
Enrollment to primary: 4.3 yearsPosted 8.1 years ago

Interventions

ELX/TEZ/IVAdrug

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

IVAdrug

Tablet for oral administration.