Clinical Trials Logo
  1. Home
  2. Cystic Fibrosis
  3. NCT00953706

Study of Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Homozygous for the F508del-CFTR Mutation — DISCOVER  

Cystic Fibrosis Clinical Trial

Official title:
A Phase 2, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Safety and Efficacy of VX-770 in Subjects Aged 12 Years and Older With Cystic Fibrosis Who Are Homozygous for the F508del-CFTR Mutation

Clinical Trial Summary

The purpose of this study was to evaluate the safety and efficacy of ivacaftor in participants with cystic fibrosis (CF) who were aged 12 years or older and were homozygous for the F508del-CF transmembrane conductance regulator (CFTR) mutation. Ivacaftor is a potent and selective CFTR potentiator of wild-type, G551D, F508del, and R117H forms of human CFTR protein. Potentiators are pharmacological agents that increase the chloride ion transport properties of the channel in the presence of cyclic adenosine monophosphate (AMP)-dependent protein kinase A (PKA) activation.

Clinical Trial Description

This study investigated the effects of ivacaftor in participants with cystic fibrosis (CF) >=12 years of age with a forced expiratory volume in 1 second (FEV1) >=40 percent (%) predicted. This study was conducted in 2 parts.

- Part A of this study was a randomized, double-blind, placebo-controlled, parallel-group evaluation of participants with CF who were aged 12 years or older and were homozygous for the F508del-CFTR mutation.

- Part B of this study was an open-label extension of Part A, enrolling participants who completed Part A and met pre-specified endpoint criteria, and explored the safety and efficacy of ivacaftor over long-term treatment in participants with CF aged 12 years or older who were homozygous for the F508del-CFTR mutation. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00953706
Study type Interventional
Source Vertex Pharmaceuticals Incorporated
Contact
Status Terminated
Phase Phase 2
Start date September 2009
Completion date May 2013
View Details
See also
  Status Clinical Trial Phase
Completed NCT04696198 - Thoracic Mobility in Cystic Fibrosis Care N/A
Completed NCT00803205 - Study of Ataluren (PTC124™) in Cystic Fibrosis Phase 3
Terminated NCT04921332 - Bright Light Therapy for Depression Symptoms in Adults With Cystic Fibrosis (CF) and COPD N/A
Completed NCT03601637 - Safety and Pharmacokinetic Study of Lumacaftor/Ivacaftor in Participants 1 to Less Than 2 Years of Age With Cystic Fibrosis, Homozygous for F508del Phase 3
Terminated NCT02769637 - Effect of Acid Blockade on Microbiota and Inflammation in Cystic Fibrosis (CF)
Recruiting NCT06012084 - The Development and Evaluation of iCF-PWR for Healthy Siblings of Individuals With Cystic Fibrosis N/A
Recruiting NCT06030206 - Lung Transplant READY CF 2: A Multi-site RCT N/A
Recruiting NCT06032273 - Lung Transplant READY CF 2: CARING CF Ancillary RCT N/A
Recruiting NCT06088485 - The Effect of Bone Mineral Density in Patients With Adult Cystic Fibrosis
Recruiting NCT05392855 - Symptom Based Performance of Airway Clearance After Starting Highly Effective Modulators for Cystic Fibrosis (SPACE-CF) N/A
Recruiting NCT04056702 - Impact of Triple Combination CFTR Therapy on Sinus Disease.
Recruiting NCT04039087 - Sildenafil Exercise: Role of PDE5 Inhibition Phase 2/Phase 3
Completed NCT04058548 - Clinical Utility of the 1-minute Sit to Stand Test as a Measure of Submaximal Exercise Tolerance in Patients With Cystic Fibrosis During Acute Pulmonary Exacerbation N/A
Completed NCT04038710 - Clinical Outcomes of Triple Combination Therapy in Severe Cystic Fibrosis Disease.
Completed NCT03637504 - Feasibility of a Mobile Medication Plan Application in CF Patient Care N/A
Recruiting NCT03506061 - Trikafta in Cystic Fibrosis Patients Phase 2
Completed NCT03566550 - Gut Imaging for Function & Transit in Cystic Fibrosis Study 1
Recruiting NCT04828382 - Prospective Study of Pregnancy in Women With Cystic Fibrosis
Completed NCT04568980 - Assessment of Contraceptive Safety and Effectiveness in Cystic Fibrosis
Recruiting NCT04010253 - Impact of Bronchial Drainage Technique by the Medical Device Simeox® on Respiratory Function and Symptoms in Adult Patients With Cystic Fibrosis N/A