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Completed Phase 3 Interventional Results available

A Phase 3 Study of Tezacaftor (VX-661) in Combination With Ivacaftor (VX-770) in Subjects Aged 12 Years and Older With Cystic Fibrosis (CF), Who Have One F508del-CFTR Mutation and a Second Mutation That Has Been Demonstrated to be Clinically Responsive to Ivacaftor

ClinicalTrials.gov ID: NCT02412111

Public ClinicalTrials.gov record NCT02412111. 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 18, 2026, 7:37 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, Randomized, Double-Blind, Ivacaftor-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Heterozygous for the F508del-CFTR Mutation and a Second CFTR Allele With a Gating Defect That Is Clinically Demonstrated to be Ivacaftor Responsive

Brief summary

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

This is a Phase 3, randomized, double-blind, ivacaftor-controlled, parallel-group, multicenter study of tezacaftor in combination with ivacaftor in subjects aged 12 years and older with CF who are heterozygous for the F508del-CFTR mutation and a second CFTR allele with a gating defect that is clinically demonstrated to be ivacaftor responsive.

Study identification

NCT ID
NCT02412111
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
156 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
12 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
Jun 2015 (Actual)
Primary completion
Sep 2017 (Actual)
Completion
Sep 2017 (Actual)
Last update posted
Jan 8, 2019

2015 – 2017

United States locations

U.S. sites
33
U.S. states
24
U.S. cities
33
Facility City State ZIP Site status
Not listed Birmingham Alabama — —
Not listed Oakland California — —
Not listed San Diego California — —
Not listed Aurora Colorado — —
Not listed Washington D.C. District of Columbia — —
Not listed Orlando Florida — —
Not listed Augusta Georgia — —
Not listed Indianapolis Indiana — —
Not listed Lexington Kentucky — —
Not listed Boston Massachusetts — —
Not listed Ann Arbor Michigan — —
Not listed Detroit Michigan — —
Not listed Grand Rapids Michigan — —
Not listed St Louis Missouri — —
Not listed Omaha Nebraska — —
Not listed Lebanon New Hampshire — —
Not listed Manchester New Hampshire — —
Not listed Morristown New Jersey — —
Not listed New Brunswick New Jersey — —
Not listed Albany New York — —
Not listed New York New York — —
Not listed Cincinnati Ohio — —
Not listed Toledo Ohio — —
Not listed Oklahoma City Oklahoma — —
Not listed Portland Oregon — —
Not listed Philadelphia Pennsylvania — —
Not listed Pittsburgh Pennsylvania — —
Not listed Charleston South Carolina — —
Not listed Knoxville Tennessee — —
Not listed Nashville Tennessee — —
Not listed Houston Texas — —
Not listed Salt Lake City Utah — —
Not listed Morgantown West Virginia — —

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 35 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02412111, 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 Jan 8, 2019 · Synced Oct 18, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT02412111 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →