Working… Menu
Help guide our efforts to modernize
Send us your comments by March 14, 2020.

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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03150719
Recruitment Status : Completed
First Posted : May 12, 2017
Results First Posted : September 12, 2019
Last Update Posted : September 12, 2019
Information provided by (Responsible Party):
Vertex Pharmaceuticals Incorporated

Brief Summary:
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).

Condition or disease Intervention/treatment Phase
Cystic Fibrosis Drug: Tezacaftor/Ivacaftor Drug: Ivacaftor Drug: Placebo Phase 3

Expanded Access : An investigational treatment associated with this study has been approved for sale to the public.   More info ...

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 98 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
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
Actual Study Start Date : May 24, 2017
Actual Primary Completion Date : August 9, 2018
Actual Study Completion Date : August 9, 2018

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Cystic Fibrosis
Drug Information available for: Ivacaftor

Arm Intervention/treatment
Placebo Comparator: Placebo
Participants received placebo matched to TEZ/IVA fixed-dose combination tablet orally once daily in the morning followed by placebo matched to IVA tablet orally once daily in the evening for 56 days.
Drug: Placebo
Placebo matched to TEZ/IVA fixed-dose combination tablet.

Drug: Placebo
Placebo matched to IVA tablet.

Experimental: TEZ/IVA
Participants received TEZ 100 milligram (mg)/IVA 150 mg fixed-dose combination tablet orally once daily in the morning and IVA 150 mg tablet orally once daily in the evening for 56 days.
Drug: Tezacaftor/Ivacaftor
TEZ 100 mg/IVA 150 mg fixed-dose combination tablet.
Other Name: TEZ/IVA; VX-661/VX-770

Drug: Ivacaftor
IVA 150 mg tablet.
Other Name: VX-770; IVA

Primary Outcome Measures :
  1. Incidence of Respiratory Adverse Events of Special Interest (RAESIs) [ Time Frame: Day 1 up to Day 84 ]
    RAESIs included chest discomfort, dyspnea (shortness of breath), respiration abnormal (chest tightness), asthma, bronchial hyperreactivity, bronchospasm, and wheezing.

Secondary Outcome Measures :
  1. Absolute Change From Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) at Average of Day 28 and Day 56 Measurements [ Time Frame: Baseline, Day 28 and Day 56 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.

  2. Relative Change From Baseline in ppFEV1 at Average of Day 28 and Day 56 Measurements [ Time Frame: Baseline, Day 28 and Day 56 ]
    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.

  3. Absolute Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score at Average of Day 28 and Day 56 Measurements [ Time Frame: Baseline, Day 28 and Day 56 ]
    The CFQ-R is a validated participant-reported outcome measuring health-related quality of life for participants with cystic fibrosis. Respiratory domain assessed respiratory symptoms, score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life.

  4. Tolerability as Assessed by Number of Participants Who Discontinued Treatment [ Time Frame: Day 1 through Day 56 ]
  5. Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs) [ Time Frame: Day 1 up to Day 84 ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   12 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Willing and able to comply with scheduled visits, treatment plan, study restrictions, laboratory tests, contraceptive guidelines, and other study procedures.
  • Prior discontinuation of Orkambi, with at least 1 respiratory sign or symptom considered related to therapy.
  • Resolution or stabilization of qualifying event(s) >28 days prior to Screening.
  • Discontinuation of Orkambi therapy must have occurred within approximately 12 weeks from the first dose of Orkambi.
  • Homozygous for F508del mutation in the CFTR gene as documented in the subject's medical record. If genotype documentation is not available in the medical record, genotyping will be performed during screening.
  • FEV1 ≥25% and ≤90% of predicted normal for age, sex, and height.
  • Stable CF disease as judged by the investigator.
  • Other protocol defined inclusion criteria could apply.

Exclusion Criteria:

  • History of any comorbidity that, in the opinion of the investigator, might confound the results of the study or pose an additional risk in administering study drug to the subject.
  • Recent rapid or progressive deterioration in respiratory status.
  • Receiving continuous oxygen at >2L/min or on face-mask ventilation.
  • Any protocol-defined exclusionary laboratory values at Screening.
  • Child-Pugh Class B or C hepatic impairment.
  • An acute upper or lower respiratory infection, pulmonary exacerbation, or change in therapy for pulmonary disease within 28 days before Day 1.
  • Documentation of colonization with organisms associated with a more rapid decline in pulmonary status.
  • History of lung transplantation since most recent initiation of Orkambi.
  • History of alcohol or drug abuse in the past year as deemed by the investigator.
  • Participation in an investigational drug study or use of a CFTR modulator within 28 days or 5 terminal half-lives of the investigational drug or modulator (whichever is longer).
  • Use of restricted medications or foods within the specified window before the first dose of study drug, or an anticipated need or use of restricted medication or foods after the first dose of study drug.
  • Pregnant or nursing females: Females of child-bearing potential must have a negative pregnancy test at Screening and Day 1.
  • Other protocol defined exclusion criteria could apply.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03150719

Hide Hide 53 study locations
Layout table for location information
United States, Alabama
University of Alabama at Birmingham
Birmingham, Alabama, United States, 35233
United States, Arizona
Phoenix Children's Hospital
Phoenix, Arizona, United States, 85016
United States, California
UCSF - Fresno, Community Regional Medical Center
Fresno, California, United States, 93701
Miller Children's Hospital / Long Beach Memorial
Long Beach, California, United States, 90806
Children's Hospital Los Angeles
Los Angeles, California, United States, 90027
Rady Children's Hospital
San Diego, California, United States, 92123
United States, Colorado
National Jewish Health
Denver, Colorado, United States, 80206
United States, Connecticut
Yale New Haven Hospital
New Haven, Connecticut, United States, 06510
United States, Florida
Central Florida Pulmonary Group
Orlando, Florida, United States, 32803
Arnold Palmer Hospital
Orlando, Florida, United States, 32806
Tampa General Hospital Cardiac and Lung Transplant Clinic
Tampa, Florida, United States, 33606
United States, Georgia
Children's Speciality Services at North Druid Hills
Atlanta, Georgia, United States, 30324
United States, Idaho
St. Luke's CF Center of Idaho
Boise, Idaho, United States, 83702
United States, Illinois
Advocate Children's Hospital - Park Ridge / North Suburban Pulmonary and Critical Care Consultants
Niles, Illinois, United States, 60714
Southern Illinois University
Springfield, Illinois, United States, 62702
United States, Indiana
Riley Hospital for Children at Indiana University Health
Indianapolis, Indiana, United States, 46202
United States, Iowa
The University of Iowa Hospitals and Clinics
Iowa City, Iowa, United States, 52242
United States, Kansas
University of Kansas Medical Center
Kansas City, Kansas, United States, 66160
United States, Kentucky
Kentucky Clinic
Lexington, Kentucky, United States, 40536
United States, Louisiana
Tulane Medical Center
New Orleans, Louisiana, United States, 70112
United States, Massachusetts
Massachusetts General Hospital Cystic Fibrosis Center
Boston, Massachusetts, United States, 02114
Boston Children's Hospital
Boston, Massachusetts, United States, 02115
United States, Mississippi
University of Mississippi Medical Center
Jackson, Mississippi, United States, 39216
United States, Missouri
Children's Mercy Hospital
Kansas City, Missouri, United States, 64108
United States, Montana
Billings Clinic
Billings, Montana, United States, 59101
United States, New York
Mount Sinai Beth Israel
New York, New York, United States, 10003
New York Medical College
Valhalla, New York, United States, 10595
United States, North Carolina
Duke University Medical Center
Durham, North Carolina, United States, 27710
Wake Forest University Baptist Medical Center
Winston-Salem, North Carolina, United States, 27157
United States, Ohio
Cleveland Clinic Foundation
Cleveland, Ohio, United States, 44195
United States, Oklahoma
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, United States, 73104
Santiago Reyes, M.D.
Oklahoma City, Oklahoma, United States, 73112
United States, Pennsylvania
Drexel University College of Medicine/ Drexel Adult Cystic Fibrosis Center
Philadelphia, Pennsylvania, United States, 19107
United States, South Carolina
Medical University of South Carolina
Charleston, South Carolina, United States, 29425
United States, Tennessee
Vanderbilt University Medical Center
Nashville, Tennessee, United States, 37232
The University of Tennessee Medical Center
Nashville, Tennessee, United States, 37920
United States, Texas
Dell Children's Medical Center of Central Texas
Austin, Texas, United States, 78723
The University of Texas Health Science Center at San Antonio
San Antonio, Texas, United States, 78207
United States, Utah
University of Utah / Primary Children's Medical Center
Salt Lake City, Utah, United States, 84132
United States, Virginia
Children's Hospital of the King's Daughters
Norfolk, Virginia, United States, 23507
Children's Hospital of Richmond at VCU, Children's Pavilion
Richmond, Virginia, United States, 23298
Centre Hospitalier Intercommunal de Créteil
Créteil, France
Centre Hospitalier Universitaire De Grenoble - Hopital Michallon
Grenoble, France
CHU de Montpellier - Hopital Arnaud de Villeneuve
Montpellier Cedex 5, France
Centre Hospitalier Universitaire De Nantes
Nantes, France
Centre hospitalier universitaire de Nice, Pulmonology
Nice, France
Hopital Cochin
Paris Cedex 14, France
Centre Hospitalier Universitaire - Hopitaux de Rouen
Rouen, France
Charite Paediatric Pulmonology Department
Berlin, Germany
Ruhrlandklinik Westdeutsches Lungenzentrum am Klinikum Essen
Essen, Germany
Klinikum Innenstadt, University of Munich
Muenchen, Germany
Pneumologische Praxis Pasing
Muenchen, Germany
Universitaetsklinikum Tuebingen Klinik fuer Kinder- und Jugendmedizin
Tuebingen, Germany
Sponsors and Collaborators
Vertex Pharmaceuticals Incorporated
  Study Documents (Full-Text)

Documents provided by Vertex Pharmaceuticals Incorporated:
Study Protocol  [PDF] June 9, 2017
Statistical Analysis Plan  [PDF] May 21, 2018

Layout table for additonal information
Responsible Party: Vertex Pharmaceuticals Incorporated Identifier: NCT03150719    
Other Study ID Numbers: VX16-661-114
2017-000540-18 ( EudraCT Number )
First Posted: May 12, 2017    Key Record Dates
Results First Posted: September 12, 2019
Last Update Posted: September 12, 2019
Last Verified: September 2019

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
Layout table for MeSH terms
Cystic Fibrosis
Pathologic Processes
Pancreatic Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Infant, Newborn, Diseases
Chloride Channel Agonists
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action