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Study of Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older With the G551D Mutation (STRIVE)

14. januar 2013 oppdatert av: Vertex Pharmaceuticals Incorporated

A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Parallel Group Study to Evaluate the Efficacy and Safety of VX-770 in Subjects With Cystic Fibrosis and the G551D Mutation

The purpose of this study was to evaluate the efficacy and safety of ivacaftor in subjects with cystic fibrosis aged 12 years and older who have the G551D mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. 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 AMP-dependent protein kinase A (PKA) activation.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This was a phase 3 study in subjects with cystic fibrosis (CF) age 12 years and older who have a G551D-CFTR mutation and percent predicted forced expiratory volumn in 1 second (FEV1) between 40% and 90%.

Based on in vitro studies and pharmacologic, pharmacokinetic (PK), and safety profiles, ivacaftor was selected for clinical development as a possible treatment for patients with CF. Patients with the G551D mutation were the targeted population for this study because ivacaftor is a potentiator of the gating function of the CFTR protein, and the most prevalent mutation with a gating defect in CF is the G551D mutation.

This study was designed to further evaluate the efficacy of ivacaftor in subjects with CF who have a G551D-CFTR gene mutation and to evaluate safety in this population over a longer period than previously studied.

Studietype

Intervensjonell

Registrering (Faktiske)

167

Fase

  • Fase 3

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • New South Wales
      • Westmead, New South Wales, Australia, 2145
        • The Children's Hospital Westmead
    • Queensland
      • Chermside, Queensland, Australia, 4032
        • The Prince Charles Hospital
      • Herston, Queensland, Australia, 4026
        • Royal Children's Hospital Brisbane
      • South Brisbane, Queensland, Australia, 4101
        • Mater Adult Hospital
    • Victoria
      • Parkville, Victoria, Australia, 3052
        • Royal Children's Hospital Melbourne
    • Western Australia
      • Nedlands, Western Australia, Australia, 6009
        • Lung Institute of Western Australia
      • Subiaco, Western Australia, Australia, 6008
        • Princess Margaret Hospital for Children
    • Nova Scotia
      • Halifax, Nova Scotia, Canada, B3H 3A7
        • Queen Elizabeth Ii Health Sciences Centre
    • Ontario
      • Toronto, Ontario, Canada, M5B 1W8
        • St. Michael's Hospital
      • Toronto, Ontario, Canada, M5G 1X8
        • CF Center, Hospital for Sick Children
    • Quebec
      • Montreal, Quebec, Canada, H3H 1P3
        • Montreal Children's Hospital - MUHC
    • Alabama
      • Birmingham, Alabama, Forente stater, 35233-1711
        • University of Alabama
    • California
      • Oakland, California, Forente stater, 94611
        • Kaiser Permanente Medical Care Program
      • Palo Alto, California, Forente stater, 94304
        • Cystic Fibrosis Research Office, Stanford University
      • San Diego, California, Forente stater, 92123-5070
        • Rady Children's Hospital
    • Colorado
      • Denver, Colorado, Forente stater, 80206
        • National Jewish Medical and Research Center
    • Georgia
      • Atlanta, Georgia, Forente stater, 30322
        • Emory Cystic Fibrosis Center
    • Idaho
      • Boise, Idaho, Forente stater, 83712
        • St. Luke's CF Clinic
    • Illinois
      • Chicago, Illinois, Forente stater, 60614
        • Children's Memorial Hospital
    • Indiana
      • Indianapolis, Indiana, Forente stater, 46202
        • Indiana University
    • Iowa
      • Iowa City, Iowa, Forente stater, 52242
        • University of Iowa
    • Maryland
      • Baltimore, Maryland, Forente stater, 21205
        • Johns Hopkins University
    • Massachusetts
      • Boston, Massachusetts, Forente stater, 02114
        • Massachusetts General Hospital
      • Boston, Massachusetts, Forente stater, 02115
        • Children's Hospital Boston
    • Michigan
      • Ann Arbor, Michigan, Forente stater, 48109
        • University of Michigan
    • Minnesota
      • Minneapolis, Minnesota, Forente stater, 55455
        • Pulmonary, Allergy & Critical Care Medicine, University of Minnesota
    • Missouri
      • Kansas City, Missouri, Forente stater, 64108
        • The Children's Mercy Hospital
      • St. Louis, Missouri, Forente stater, 63110
        • Washington University
    • Nebraska
      • Omaha, Nebraska, Forente stater, 68198-5300
        • Adult Pulmonary/ CF, University of Nebraska Medical Center
    • New Jersey
      • Long Branch, New Jersey, Forente stater, 07740
        • Monmouth Medical Center
    • New York
      • Buffalo, New York, Forente stater, 14222
        • Women and Children's Hospital of Buffalo
      • New Hyde Park, New York, Forente stater, 11042
        • Long Island Jewish Medical Center
      • Syracuse, New York, Forente stater, 13210
        • SUNY Upstate Medical University
    • North Carolina
      • Chapel Hill, North Carolina, Forente stater, 27599
        • University of North Carolina at Chapel Hill
    • Ohio
      • Cincinnati, Ohio, Forente stater, 45229
        • Cincinnati Children's Hospital Medical Center
      • Cleveland, Ohio, Forente stater, 44106
        • Pediatric & Pulmonary Division, Rainbow Babies/Case Western
      • Columbus, Ohio, Forente stater, 43205
        • Nationwide Children's Hospital
      • Toledo, Ohio, Forente stater, 43606
        • Toledo Children's Hospital
    • Oregon
      • Portland, Oregon, Forente stater, 97239-3098
        • Oregon Health & Sciences University
    • Pennsylvania
      • Hershey, Pennsylvania, Forente stater, 17033
        • Hershey Medical Center
      • Philadelphia, Pennsylvania, Forente stater, 19104
        • Children's Hospital of Philadelphia
      • Pittsburgh, Pennsylvania, Forente stater, 15224
        • Children's Hospital of Pittsburgh of UPMC
    • Tennessee
      • Knoxville, Tennessee, Forente stater, 37916
        • East Tennessee Children's Hospital
      • Nashville, Tennessee, Forente stater, 37232-5735
        • Vanderbilt University Medical Center
    • Utah
      • Salt Lake City, Utah, Forente stater, 84132
        • University of Utah
    • Virginia
      • Charlottesville, Virginia, Forente stater, 22908
        • University of Virginia
    • Washington
      • Seattle, Washington, Forente stater, 98105
        • Seattle Children's Hospital
      • Seattle, Washington, Forente stater, 98195-6522
        • Division of Pulmonary and CCM, University of Washington
    • West Virginia
      • Morgantown, West Virginia, Forente stater, 26506
        • West Virginia University
    • Wisconsin
      • Milwaukee, Wisconsin, Forente stater, 53226
        • Medical College of Wisconsin
      • Paris, Frankrike, 75014
        • Hôpital Cochin
      • Paris, Frankrike, 75015
        • Hopital Necker
      • Roscoff, Frankrike, 29684
        • Centre de Perharidy
      • Cork, Irland
        • Cork University Hospital
      • Dublin, Irland, 9
        • Beaumont Hospital
      • Dublin, Irland, 4
        • St. Vincent'S University Hospital
      • Dublin, Irland, 12
        • Our Lady's Children's Hospital
      • Dublin, Irland, 24
        • The National Children's Hospital
      • London, Storbritannia, SW3 6LR
        • Imperial College London
    • Northern Ireland
      • Belfast, Northern Ireland, Storbritannia, BT9 7AB
        • Belfast City Hospital
      • Prague, Tsjekkisk Republikk, 15006
        • FN Motol
      • Erlangen, Tyskland, 91054
        • Kinder- und Jugendklinik Universitätsklinikum Erlangen
      • Jena, Tyskland, 07740
        • Mukoviszidose-Zentrum am Klinikum der Friedrich-Schiller-Universität Jena, Klinik für Kinder- und Jugendmedizin
      • Munich, Tyskland, 80337
        • Klinikum der LMU München, Dr. von Haunersches Kinderspital (CHA)
      • Wurzburg, Tyskland, 97080
        • Universitäts-Kinderklinik Würzburg

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

12 år og eldre (Barn, Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Confirmed diagnosis of cystic fibrosis (CF) and G551D mutation in at least 1 allele
  • Forced expiratory volume in 1 second (FEV1) of 40% to 90% (inclusive) of predicted normal for age, gender, and height at Screening.
  • No clinically significant abnormalities that would have interfered with the study assessments, as judged by the investigator
  • Willing to use highly effective birth control methods during the study

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 ≥ 3x the upper limit of normal
  • Abnormal renal function at Screening
  • History of solid organ or hematological transplantation
  • Pregnant, planning a pregnancy, breast-feeding, or unwilling to follow contraception requirements
  • Ongoing participation in another therapeutic clinical study or prior participation in an investigational drug study within 30 days prior to Screening
  • Use of inhaled hypertonic saline treatment
  • Concomitant use of any inhibitors or inducers of cytochrome P450 3A4 (CYP 3A4)

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Firemannsrom

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Placebo komparator: Placebo
Personer som fikk placebo hver 12. time (q12h) i opptil 48 uker.
Tablett gitt oralt hver 12. time i opptil 48 uker
Eksperimentell: 150 mg Ivacaftor q12h
Pasienter som fikk 150 mg ivacaftor hver 12. time i opptil 48 uker.
150-mg tablets given orally q12h for up to 48 weeks
Andre navn:
  • VX-770

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Absolute Mean Change From Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1) Through Week 24
Tidsramme: baseline through 24 weeks
Spirometry (as measured by FEV1) is a standardized assessment to evaluate lung function that is the most widely used endpoint in cystic fibrosis studies.
baseline through 24 weeks

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Absolutt endring fra baseline i svettekloridkonsentrasjon gjennom uke 24 og uke 48
Tidsramme: baseline gjennom 24 uker og 48 uker
Svetteklorid-testen (kvantitativ pilokarpiniontoforese) er et standard diagnostisk verktøy for cystisk fibrose (CF), og fungerer som en indikator på cystisk fibrose transmembran konduktans regulator (CFTR) aktivitet.
baseline gjennom 24 uker og 48 uker
Absolutt endring fra baseline i vekt ved uke 24 og uke 48
Tidsramme: baseline til 24 uker og 48 uker
Siden underernæring er vanlig hos pasienter med cystisk fibrose (CF) på grunn av økt energiforbruk på grunn av lungesykdom og fettmalabsorpsjon, er kroppsvekt et viktig klinisk mål på ernæringsstatus.
baseline til 24 uker og 48 uker
Absolute Mean Change From Baseline in Percent Predicted FEV1 Through Week 48
Tidsramme: baseline through 48 weeks
Spirometry (as measured by FEV1) is a standardized assessment to evaluate lung function that is the most widely used endpoint in cystic fibrosis studies.
baseline through 48 weeks
Absolute Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Score Through Week 24 and Week 48 (Respiratory Domain Score, Pooled)
Tidsramme: baseline through 24 weeks and 48 weeks
The CFQ-R is a health-related quality of life measure for subjects with cystic fibrosis. Each domain is scored from 0 (worst) to 100 (best). A difference of at least 4 points in the respiratory domain score of the CFQ-R is considered a minimal clinically important difference (MCID).
baseline through 24 weeks and 48 weeks
Time-to-first Pulmonary Exacerbation Through Week 24 and Week 48
Tidsramme: baseline through 24 weeks and 48 weeks
Pulmonary exacerbation was defined as a change in antibiotic therapy (intravenous, inhaled, or oral) for any 4 or more of signs/symptoms such as change in sputum; new or increased hemoptysis; increased cough or dyspnea; malaise, fatigue, or lethargy; temperature above 38 degrees C; anorexia or weight loss; sinus pain/tenderness and discharge; change in physical examination of the chest; decreased pulmonary function by 10%; and radiographic changes indicative of pulmonary infection.
baseline through 24 weeks and 48 weeks

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Samarbeidspartnere

Etterforskere

  • Hovedetterforsker: Bonnie W. Ramsey, MD, Children's Hospital and Regional Medical Center, Seattle, Washington, USA
  • Hovedetterforsker: Stuart Elborn, MD, Respiratory Medicine Group, Queen's University of Belfast, Belfast, Northern Ireland, UK

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. juni 2009

Primær fullføring (Faktiske)

1. juli 2010

Studiet fullført (Faktiske)

1. november 2012

Datoer for studieregistrering

Først innsendt

26. mai 2009

Først innsendt som oppfylte QC-kriteriene

26. mai 2009

Først lagt ut (Anslag)

28. mai 2009

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

18. januar 2013

Siste oppdatering sendt inn som oppfylte QC-kriteriene

14. januar 2013

Sist bekreftet

1. januar 2013

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • VX08-770-102

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .