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Completed Phase 3 Interventional Results available

A Study to Evaluate Safety, Efficacy, and Tolerability of TEZ/IVA in Orkambi® (Lumacaftor/Ivacaftor) -Experienced Subjects With Cystic Fibrosis (CF)

ClinicalTrials.gov ID: NCT03150719

Public ClinicalTrials.gov record NCT03150719. 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

Phase 3b, Randomized, Double-blind, Placebo-controlled, Parallel Group Study to Assess the Safety, Efficacy, and Tolerability of Tezacaftor/Ivacaftor (TEZ/IVA) in an Orkambi-experienced Population Who Are Homozygous for the F508del CFTR Mutation

Brief summary

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

Study VX16-661-114 (Study 114) is a Phase 3b, randomized, double-blind, placebo-controlled, parallel-group, multicenter study in subjects aged 12 years and older with CF who are homozygous for the F508del mutation on the cystic fibrosis transmembrane conductance regulator gene (CFTR) gene and who discontinued treatment with Orkambi due to respiratory symptoms considered related to treatment. This study is designed to evaluate the safety and efficacy of Tezacaftor/Ivacaftor (TEZ/IVA).

Study identification

NCT ID
NCT03150719
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
98 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
May 24, 2017 (Actual)
Primary completion
Aug 9, 2018 (Actual)
Completion
Aug 9, 2018 (Actual)
Last update posted
Sep 12, 2019

2017 – 2018

United States locations

U.S. sites
41
U.S. states
28
U.S. cities
37
Facility City State ZIP Site status
University of Alabama at Birmingham Birmingham Alabama 35233 —
Phoenix Children's Hospital Phoenix Arizona 85016 —
UCSF - Fresno, Community Regional Medical Center Fresno California 93701 —
Miller Children's Hospital / Long Beach Memorial Long Beach California 90806 —
Children's Hospital Los Angeles Los Angeles California 90027 —
Rady Children's Hospital San Diego California 92123 —
National Jewish Health Denver Colorado 80206 —
Yale New Haven Hospital New Haven Connecticut 06510 —
Central Florida Pulmonary Group Orlando Florida 32803 —
Arnold Palmer Hospital Orlando Florida 32806 —
Tampa General Hospital Cardiac and Lung Transplant Clinic Tampa Florida 33606 —
Children's Speciality Services at North Druid Hills Atlanta Georgia 30324 —
St. Luke's CF Center of Idaho Boise Idaho 83702 —
Advocate Children's Hospital - Park Ridge / North Suburban Pulmonary and Critical Care Consultants Niles Illinois 60714 —
Southern Illinois University Springfield Illinois 62702 —
Riley Hospital for Children at Indiana University Health Indianapolis Indiana 46202 —
The University of Iowa Hospitals and Clinics Iowa City Iowa 52242 —
University of Kansas Medical Center Kansas City Kansas 66160 —
Kentucky Clinic Lexington Kentucky 40536 —
Tulane Medical Center New Orleans Louisiana 70112 —
Massachusetts General Hospital Cystic Fibrosis Center Boston Massachusetts 02114 —
Boston Children's Hospital Boston Massachusetts 02115 —
University of Mississippi Medical Center Jackson Mississippi 39216 —
Children's Mercy Hospital Kansas City Missouri 64108 —
Billings Clinic Billings Montana 59101 —
Mount Sinai Beth Israel New York New York 10003 —
New York Medical College Valhalla New York 10595 —
Duke University Medical Center Durham North Carolina 27710 —
Wake Forest University Baptist Medical Center Winston-Salem North Carolina 27157 —
Cleveland Clinic Foundation Cleveland Ohio 44195 —
University of Oklahoma Health Sciences Center Oklahoma City Oklahoma 73104 —
Santiago Reyes, M.D. Oklahoma City Oklahoma 73112 —
Drexel University College of Medicine/ Drexel Adult Cystic Fibrosis Center Philadelphia Pennsylvania 19107 —
Medical University of South Carolina Charleston South Carolina 29425 —
Vanderbilt University Medical Center Nashville Tennessee 37232 —
The University of Tennessee Medical Center Nashville Tennessee 37920 —
Dell Children's Medical Center of Central Texas Austin Texas 78723 —
The University of Texas Health Science Center at San Antonio San Antonio Texas 78207 —
University of Utah / Primary Children's Medical Center Salt Lake City Utah 84132 —
Children's Hospital of the King's Daughters Norfolk Virginia 23507 —
Children's Hospital of Richmond at VCU, Children's Pavilion Richmond Virginia 23298 —

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 12 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03150719, 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 Sep 12, 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 NCT03150719 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →