Study of Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Homozygous for the F508del-CFTR Mutation (DISCOVER)
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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
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.
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Phase 2
Kontakte und Standorte
Studienorte
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Alabama
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Birmingham, Alabama, Vereinigte Staaten, 35294
- University of Alabama
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Alaska
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Anchorage, Alaska, Vereinigte Staaten, 99508
- Providence Medical Center
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California
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Oakland, California, Vereinigte Staaten, 94611
- Kaiser Permanente Medical Care Program
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Connecticut
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Hartford, Connecticut, Vereinigte Staaten, 06106
- Connecticut Children's Medical Center
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Florida
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Miami, Florida, Vereinigte Staaten, 33136
- University of Miami Miller School of Medicine
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Orlando, Florida, Vereinigte Staaten, 32801
- Nemours Children's Clinic
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Idaho
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Boise, Idaho, Vereinigte Staaten, 83712
- St. Luke's CF Clinic
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Illinois
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Chicago, Illinois, Vereinigte Staaten, 60637
- University of Chicago
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Indiana
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Indianapolis, Indiana, Vereinigte Staaten, 46202
- Riley Hospital for Children
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Maine
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Portland, Maine, Vereinigte Staaten, 04102
- Maine Medical Center
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Massachusetts
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Boston, Massachusetts, Vereinigte Staaten, 02114
- Massachusetts General Hospital
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Worcester, Massachusetts, Vereinigte Staaten, 01655
- University of Massachussetts Medical School
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Michigan
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Grand Rapids, Michigan, Vereinigte Staaten, 49503
- Helen DeVos Children's Hospital; Spectrum Health Hospitals
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Missouri
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Kansas City, Missouri, Vereinigte Staaten, 64108
- The Children's Mercy Hospital
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New Hampshire
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Lebanon, New Hampshire, Vereinigte Staaten, 03756
- Dartmouth-Hitchcock Medical Center
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New Jersey
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Long Branch, New Jersey, Vereinigte Staaten, 07740
- Monmouth Medical Center
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Morristown, New Jersey, Vereinigte Staaten, 07962
- Morristown Memorial Hospital
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New York
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Albany, New York, Vereinigte Staaten, 12208
- Albany Medical College
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Buffalo, New York, Vereinigte Staaten, 14222
- Women and Children's Hospital of Buffalo
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Hawthorne, New York, Vereinigte Staaten, 10532
- New York Medical College
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New York, New York, Vereinigte Staaten, 10032
- Columbia University Medical Center
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New York City, New York, Vereinigte Staaten, 10003
- The CF Center, Beth Israel Medical Center
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Ohio
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Akron, Ohio, Vereinigte Staaten, 44308
- Akron Children's Hospital
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Cincinnati, Ohio, Vereinigte Staaten, 45229
- Cincinnati Children's Hospital
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Toledo, Ohio, Vereinigte Staaten, 43606
- Toldedo Children's Hospital
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Oklahoma
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Oklahoma City, Oklahoma, Vereinigte Staaten, 73104
- University of Oklahoma Health Sciences Center
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Pennsylvania
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Hershey, Pennsylvania, Vereinigte Staaten, 17033
- Hershey Medical Center
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Philadelphia, Pennsylvania, Vereinigte Staaten, 19134
- St. Christopher's Hospital for Children
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South Carolina
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Charleston, South Carolina, Vereinigte Staaten, 29425
- Medical University of South Carolina
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Tennessee
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Memphis, Tennessee, Vereinigte Staaten, 38103
- University of Tennessee
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Texas
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Fort Worth, Texas, Vereinigte Staaten, 76104
- Cook Children's Medical Center
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Utah
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Salt Lake City, Utah, Vereinigte Staaten, 84132
- Univeristy of Utah
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Vermont
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Colchester, Vermont, Vereinigte Staaten, 05446
- Vermont Lung Center at the University of Vermont
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Virginia
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Richmond, Virginia, Vereinigte Staaten, 23298
- Medical College of Virginia
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- Confirmed diagnosis of cystic fibrosis (CF) and homozygous for F508del-CFTR mutation
- Forced expiratory volume in 1 second (FEV1) of at least 40% of predicted normal for age, gender, and height
- Willing to use at least 2 highly effective birth control methods during the study
- No clinically significant abnormalities that would have interfered with the study assessments, as judged by the investigator
- Able to understand and comply with protocol requirements, restrictions, and instructions and likely to complete the study as planned, as judged by the investigator
Exclusion Criteria:
- History of any illness or condition that might confound the results of the study or pose an additional risk in administering study drug to the subject
- Acute respiratory infection, pulmonary exacerbation, or changes in therapy for pulmonary disease within 4 weeks of Day 1 of the study
- History of alcohol, medication or illicit drug abuse within one year prior to Day 1
- Abnormal liver function >=3 x the upper limit of normal
- Abnormal renal function at Screening
- History of solid organ or hematological transplantation
- Pregnant or breast-feeding (for women)
- Ongoing participation in another therapeutic clinical study or prior participation in an investigational drug study within 30 days prior to screening
- Previous participation in a VX-809 study
- Used inhaled hypertonic saline treatment
- Concomitant use of any inhibitors or inducers of cytochrome P450 3A4 (CYP3A4)
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Placebo-Komparator: Placebo
Placebo matched to ivacaftor tablet orally every 12 hours (q12h) for 16 weeks during Part A (double-blind treatment period), followed by ivacaftor 150 mg tablet orally q12h for 96 weeks during Part B (open-label extension period).
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Tablette
Tablet
Andere Namen:
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Experimental: Ivacaftor
Ivacaftor 150 milligram (mg) tablet orally q12h for 16 weeks during Part A (double-blind treatment period), followed by ivacaftor 150 mg tablet orally q12h for 96 weeks during Part B (open-label extension period).
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Tablet
Andere Namen:
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Part A : Absolute Change From Part A Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) Through Week 16
Zeitfenster: Part A baseline through Week 16
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Spirometry (as measured by ppFEV1) is a standardized assessment to evaluate lung function that is the most widely used endpoint in cystic fibrosis studies.
FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.
ppFEV1 (predicted for age, gender, and height) was calculated using the Knudson method.
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Part A baseline through Week 16
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Part A : Absolute Change From Part A Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score Through Week 16
Zeitfenster: Part A baseline through Week 16
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The CFQ-R is a validated patient-reported outcome measuring health-related quality of life for participants with cystic fibrosis.
Respiratory domain assessed respiratory symptoms (for example, coughing, congestion, wheezing), score range: 0-100; Higher scores indicating fewer symptoms and better health-related quality of life.
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Part A baseline through Week 16
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Part A : Absolute Change From Part A Baseline in Sweat Chloride Concentration Through Week 16
Zeitfenster: Part A baseline through Week 16
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The sweat chloride (quantitative pilocarpine iontophoresis) test is a standard diagnostic tool for cystic fibrosis (CF), serving as an indicator of cystic fibrosis transmembrane conductance regulator (CFTR) activity.
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Part A baseline through Week 16
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Part A : Rate of Change From Baseline in Weight Through Week 16
Zeitfenster: Part A baseline through Week 16
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As malnutrition is common in participants with cystic fibrosis (CF) because of increased energy expenditures due to lung disease and fat malabsorption, body weight is an important clinical measure of nutritional status.
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Part A baseline through Week 16
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Part B : Absolute Change From Part A and Part B Baseline in ppFEV1 Through Week 64
Zeitfenster: Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
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ppFEV1 is defined in Outcome Measure 1.
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Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
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Part B : Rate of Change From Part A Baseline in ppFEV1 Through Week 64
Zeitfenster: Part A baseline through Week 64
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ppFEV1 is defined in Outcome Measure 1.
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Part A baseline through Week 64
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Part B : Rate of Change From Part B Baseline in ppFEV1 Through Week 64
Zeitfenster: Part B baseline through Week 64
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ppFEV1 is defined in Outcome Measure 1.
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Part B baseline through Week 64
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Part B : Absolute Change From Part A and Part B Baseline in CFQ-R Respiratory Domain Score Through Week 64
Zeitfenster: Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
|
The CFQ-R is a validated patient-reported outcome measuring health-related quality of life for participants with cystic fibrosis.
Respiratory domain assessed respiratory symptoms (for example, coughing, congestion, wheezing), score range: 0-100; Higher scores indicating fewer symptoms and better health-related quality of life.
|
Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
|
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Part B : Absolute Change From Part A and Part B Baseline in Sweat Chloride Concentration Through Week 64
Zeitfenster: Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
|
The sweat chloride (quantitative pilocarpine iontophoresis) test is a standard diagnostic tool for cystic fibrosis (CF), serving as an indicator of cystic fibrosis transmembrane conductance regulator (CFTR) activity.
|
Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
|
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Part B : Absolute Change From Part A and Part B Baseline in Weight Through Week 64
Zeitfenster: Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
|
As malnutrition is common in patients with cystic fibrosis (CF) because of increased energy expenditures due to lung disease and fat malabsorption, body weight is an important clinical measure of nutritional status.
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Change from Part A baseline: Part A Baseline, Week 64; Change from Part B baseline: Part B Baseline (Week 16), Week 64
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Part B : Number of Participants With Pulmonary Exacerbations
Zeitfenster: Part B baseline through Week 64
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Pulmonary exacerbation was defined as new, or changed, antibiotic therapy (intravenous, inhaled, or oral) for any 4 or more of the following signs/symptoms: change in sputum; new or increased hemoptysis; increased cough; increased dyspnea; malaise, fatigue, or lethargy; temperature above 38 degrees Celsius; anorexia or weight loss; sinus pain or tenderness; change in sinus discharge; change in physical examination of the chest; decrease in pulmonary function by 10 percent (%); and radiographic changes indicative of pulmonary infection.
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Part B baseline through Week 64
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Part B : Number of Pulmonary Exacerbation Events
Zeitfenster: Part B baseline through Week 64
|
Pulmonary exacerbation was defined as new, or changed, antibiotic therapy (intravenous, inhaled, or oral) for any 4 or more of the following signs/symptoms: change in sputum; new or increased hemoptysis; increased cough; increased dyspnea; malaise, fatigue, or lethargy; temperature above 38 degrees Celsius; anorexia or weight loss; sinus pain or tenderness; change in sinus discharge; change in physical examination of the chest; decrease in pulmonary function by 10 percent (%); and radiographic changes indicative of pulmonary infection.
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Part B baseline through Week 64
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Part B : Number of Pulmonary Exacerbation Events Per Participant Per Year
Zeitfenster: Part B baseline through Week 64
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Pulmonary exacerbation was defined as new, or changed, antibiotic therapy (intravenous, inhaled, or oral) for any 4 or more of the following signs/symptoms: change in sputum; new or increased hemoptysis; increased cough; increased dyspnea; malaise, fatigue, or lethargy; temperature above 38 degrees Celsius; anorexia or weight loss; sinus pain or tenderness; change in sinus discharge; change in physical examination of the chest; decrease in pulmonary function by 10 percent (%); and radiographic changes indicative of pulmonary infection.
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Part B baseline through Week 64
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Mitarbeiter
Mitarbeiter
Ermittler
Ermittler
- Hauptermittler: Patrick A Flume, MD, Medical University of South Carolina
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
Nützliche Links
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Erkrankungen des Verdauungssystems
- Pathologische Prozesse
- Erkrankungen der Atemwege
- Lungenkrankheit
- Säugling, Neugeborenes, Krankheiten
- Genetische Krankheiten, angeboren
- Erkrankungen der Bauchspeicheldrüse
- Fibrose
- Mukoviszidose
- Molekulare Mechanismen der pharmakologischen Wirkung
- Membrantransportmodulatoren
- Chloridkanal-Agonisten
- Ivacaftor
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- VX08-770-104
- 2009-010261-23 (EudraCT-Nummer)
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