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Completed Phase 3 Interventional Results available

Evaluation of Long-term Safety and Efficacy of ELX/TEZ/IVA TC Combination Therapy in Participants With Cystic Fibrosis Who Are 6 Years of Age and Older

ClinicalTrials.gov ID: NCT04183790

Public ClinicalTrials.gov record NCT04183790. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 9:53 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Open-label Study Evaluating the Long-term Safety and Efficacy of ELX/TEZ/IVA Combination Therapy in Subjects With Cystic Fibrosis Who Are 6 Years of Age and Older

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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

Study identification

NCT ID
NCT04183790
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
64 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
6 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 17, 2020 (Actual)
Primary completion
Feb 24, 2024 (Actual)
Completion
Feb 24, 2024 (Actual)
Last update posted
May 18, 2025

2020 – 2024

United States locations

U.S. sites
13
U.S. states
12
U.S. cities
13
Facility City State ZIP Site status
Children's Hospital of Orange County Orange California 92868 —
Children's Hospital Colorado Aurora Colorado 80045 —
Ann & Robert Lurie Children's Hospital of Chicago Chicago Illinois 60611 —
Boston Children's Hospital Boston Massachusetts 02115 —
Children's Respiratory and Critical Care Specialists, P.A., Children's Hospitals and Clinics of Minnesota Minneapolis Minnesota 55404 —
The Children's Mercy Hospital Kansas City Missouri 64108 —
Northwell Health- Long Island Jewish Medical Center New Hyde Park New York 11040 —
Clinical Research of Charlotte Charlotte North Carolina 28277 —
Rainbow Babies and Children's Hospital/University Hospitals Cleveland Medical Center Cleveland Ohio 44106 —
Nationwide Children's Hospital Columbus Ohio 43205 —
Oregon Health & Science University Portland Oregon 97239 —
Texas Children's Hospital Houston Texas 77030 —
Seattle Children's Hospital Seattle Washington 98105 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 8 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04183790, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 18, 2025 · Synced Oct 17, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04183790 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →