Study of Ivacaftor in Subjects With Cystic Fibrosis (CF) Who Have the R117H-CF Transmembrane Conductance Regulator (CFTR) Mutation (KONDUCT)

NCT ID: NCT01614457

Last Updated: 2015-02-12

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-07-31

Study Completion Date

2013-10-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to evaluate the efficacy and safety of ivacaftor in subjects with cystic fibrosis (CF) who have the R117H-CFTR mutation.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Ivacaftor is the first CFTR modulator to show an improvement in CFTR function and clinical benefit in subjects with CF. Results from Phase 3 studies (VX08-770-102 \[Study 102\] \[NCT00909532\] and VX08-770-103 \[Study 103\] \[NCT00909727\]) showed that ivacaftor is effective in the treatment of subjects with CF who have the G551D-CFTR mutation, as evidenced by sustained improvements in CFTR channel function (measured by reduction in sweat chloride concentration) and corresponding substantial, durable improvements in lung function, pulmonary exacerbations, respiratory symptoms, and weight gain. Ivacaftor was also well tolerated, as evidenced by the rates and reasons for premature discontinuation and results of safety assessments.

Ivacaftor (Trade Name Kalydeco; 150 mg tablets) was initially approved in the United States for the treatment of CF in subjects 6 years of age and older who have a G551D mutation in the CFTR gene.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Cystic Fibrosis

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Ivacaftor

Ivacaftor 150 milligram (mg) tablet orally twice daily for 24 weeks.

Group Type EXPERIMENTAL

Ivacaftor

Intervention Type DRUG

Ivacaftor 150 milligram (mg) tablet orally twice daily for 24 weeks.

Placebo

Placebo matched to Ivacaftor tablet orally twice daily for 24 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo matched to Ivacaftor tablet orally twice daily for 24 weeks.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Ivacaftor

Ivacaftor 150 milligram (mg) tablet orally twice daily for 24 weeks.

Intervention Type DRUG

Placebo

Placebo matched to Ivacaftor tablet orally twice daily for 24 weeks.

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Kalydeco VX-770

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Male or female with confirmed diagnosis of CF
* Must have at least 1 allele of the R117H CFTR mutation
* Percent predicted forced expiratory volume in 1 second (FEV1) 40 percent (%) to 90% (for subjects aged 12 years or older) or 40% to 105% (for subjects aged 6 to 11 years) predicted normal for age, sex, and height
* 6 years of age or older
* Minimum weight of 15 kilogram (kg) at screening
* Females of childbearing potential must not be pregnant
* Willing to comply with contraception requirements

Exclusion Criteria

* CFTR gene mutation leading to CFTR channel with gating defect (that is, any 1 of the following mutations: G551D, G178R, G551S, S549N, S549R, G970R, G1244E, S1251N, S1255P, or G1349D)
* History of any illness or condition that might confound the results of the study or pose an additional risk in administering ivacaftor to the subject
* An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy (including antibiotics) for pulmonary disease within 4 weeks before the first dose of study drug
* Abnormal liver function, at screening, defined as greater than or equal to (\>=) 3 time upper limit of normal (ULN), of any 3 or more of the following: serum aspartate transaminase (AST), serum alanine transaminase (ALT), gamma-glutamyl transpeptidase (GGT), serum alkaline phosphatase (ALP), total bilirubin
* Colonization with organisms associated with a more rapid decline in pulmonary status (for example, Burkholderia cenocepacia, Burkholderia dolosa, and Mycobacterium abscessus) at screening
* History of solid organ or hematological transplantation
* History of alcohol, medication or illicit drug abuse within 1 year before the first dose of study drug
* Ongoing participation in another therapeutic clinical study or prior participation in an investigational drug study within 30 days before screening
* Any "non-CF-related" illness within 2 weeks before Day 1 (first dose of study drug). "Illness" was defined as an acute (serious or non-serious) condition (for example, gastroenteritis)
* Use of any inhibitors or inducers of cytochrome (CYP) P450 3A
Minimum Eligible Age

6 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Cystic Fibrosis Foundation

OTHER

Sponsor Role collaborator

Vertex Pharmaceuticals Incorporated

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Richard Moss, MD

Role: PRINCIPAL_INVESTIGATOR

Stanford University

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Birmingham, Alabama, United States

Site Status

Palo Alto, California, United States

Site Status

Hartford, Connecticut, United States

Site Status

Tampa, Florida, United States

Site Status

Chicago, Illinois, United States

Site Status

Iowa City, Iowa, United States

Site Status

Lexington, Kentucky, United States

Site Status

Baltimore, Maryland, United States

Site Status

Boston, Massachusetts, United States

Site Status

Detroit, Michigan, United States

Site Status

Grand Rapids, Michigan, United States

Site Status

St Louis, Missouri, United States

Site Status

Omaha, Nebraska, United States

Site Status

New York, New York, United States

Site Status

Syracuse, New York, United States

Site Status

Valhalla, New York, United States

Site Status

Chapel Hill, North Carolina, United States

Site Status

Philadelphia, Pennsylvania, United States

Site Status

Pittsburgh, Pennsylvania, United States

Site Status

Charleston, South Carolina, United States

Site Status

Nashville, Tennessee, United States

Site Status

Dallas, Texas, United States

Site Status

Fort Worth, Texas, United States

Site Status

Houston, Texas, United States

Site Status

Salt Lake City, Utah, United States

Site Status

Richmond, Virginia, United States

Site Status

Seattle, Washington, United States

Site Status

Morgantown, West Virginia, United States

Site Status

Madison, Wisconsin, United States

Site Status

Belfast, , United Kingdom

Site Status

Edinburgh, , United Kingdom

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States United Kingdom

References

Explore related publications, articles, or registry entries linked to this study.

Moss RB, Flume PA, Elborn JS, Cooke J, Rowe SM, McColley SA, Rubenstein RC, Higgins M; VX11-770-110 (KONDUCT) Study Group. Efficacy and safety of ivacaftor in patients with cystic fibrosis who have an Arg117His-CFTR mutation: a double-blind, randomised controlled trial. Lancet Respir Med. 2015 Jul;3(7):524-33. doi: 10.1016/S2213-2600(15)00201-5. Epub 2015 Jun 9.

Reference Type DERIVED
PMID: 26070913 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

VX11-770-110

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.