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Study of VX-809 in Cystic Fibrosis Subjects With the ∆F508-CFTR Gene Mutation

1. august 2015 opdateret af: Vertex Pharmaceuticals Incorporated

A Randomized, Double-Blind, Placebo-Controlled, Multiple Dose Study of VX-809 to Evaluate Safety, Pharmacokinetics, and Pharmacodynamics of VX-809 in Cystic Fibrosis Subjects Homozygous for the ∆F508-CFTR Gene Mutation

The primary objective of the study was to evaluate the safety and tolerability of VX-809 in participants with cystic fibrosis (CF) who are homozygous for the F508del mutation on the CF transmembrane conductance regulator (CFTR) gene.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This was a Phase 2, randomized, double-blind, placebo-controlled, multiple-dose study of orally-administered VX-809 in participants with CF who are homozygous for the specific CFTR mutation known as ∆F508 or F508del. Enrollment was planned for 90 participants at approximately 20 centers. Participants were planned to be randomized in a 4:1 ratio to receive 1 of 4 doses of VX-809 or placebo once a day for 28 days in a parallel design. Participants were outpatients during the study, except for overnight stays on Day 1 and 28.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

93

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Belgien
      • Brussels, Belgien
      • Leuven, Belgien
  • Canada
    • Ontario
      • Toronto, Ontario, Canada
  • Forenede Stater
    • Alabama
      • Birmingham, Alabama, Forenede Stater
    • California
      • Palo Alto, California, Forenede Stater
      • San Diego, California, Forenede Stater
    • Colorado
      • Aurora, Colorado, Forenede Stater
    • Georgia
      • Atlanta, Georgia, Forenede Stater
    • Illinois
      • Chicago, Illinois, Forenede Stater
    • Iowa
      • Iowa City, Iowa, Forenede Stater
    • Maryland
      • Baltimore, Maryland, Forenede Stater
    • Massachusetts
      • Boston, Massachusetts, Forenede Stater
    • Minnesota
      • Minneapolis, Minnesota, Forenede Stater
    • Missouri
      • St. Louis, Missouri, Forenede Stater
    • North Carolina
      • Chapel Hill, North Carolina, Forenede Stater
    • Ohio
      • Cincinnati, Ohio, Forenede Stater
      • Cleveland, Ohio, Forenede Stater
      • Columbus, Ohio, Forenede Stater
    • Pennsylvania
      • Philadelphia, Pennsylvania, Forenede Stater
      • Pittsburgh, Pennsylvania, Forenede Stater
    • Washington
      • Seattle, Washington, Forenede Stater
  • Holland
      • Rotterdam, Holland
      • Utrecht, Holland
  • Tyskland
      • Cologne, Tyskland
      • Hannover, Tyskland

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Confirmed diagnosis of CF with ∆F508-CFTR mutation in both alleles
  • Forced expiratory volume in 1 second (FEV1) greater than or equal to (>=) 40 percent (%) of predicted normal for age, gender, and height
  • Weight >=40 kilograms (kg) and body mass index greater than or equal to 18.5 kilogram per square meter (kg/m^2)
  • Screening laboratory values, tests, and physical examination within acceptable ranges
  • Negative pregnancy test (for women of child-bearing potential)
  • Able and willing to follow contraceptive requirements
  • Willing to remain on a stable medication regimen for the duration of study participation

Exclusion Criteria:

  • History of any illness, or any ongoing acute illness, that could impact the safety of the study participant or may confound results of study
  • Pulmonary exacerbation or changes in therapy for pulmonary disease within 14 days before receiving the first dose of study drug
  • Impaired hepatic or renal function
  • History of organ or hematological transplant

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Tredobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Placebo komparator: Placebo
Placebo matched to VX-809 capsule orally once daily for 28 days.
Medicin: Placebo
Placebo matched to VX-809 capsules.
Eksperimentel: VX-809, 25 mg
VX-809, 25 milligram (mg) capsule orally once daily for 28 days.
Medicin: VX-809
Capsules
Eksperimentel: VX-809, 50 mg
VX-809, 50 mg capsule orally once daily for 28 days.
Medicin: VX-809
Capsules
Eksperimentel: VX-809, 100 mg
VX-809, 100 mg capsule orally once daily for 28 days.
Medicin: VX-809
Capsules
Eksperimentel: VX-809, 200 mg
VX-809, 200 mg capsule orally once daily for 28 days.
Medicin: VX-809
Capsules

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Safety and Tolerability Based on Adverse Events (AEs)
Tidsramme: Up to 14 days after last dose (last dose = Day 28)
AE: any untoward medical occurrence in a participant during the study; the event does not necessarily have a causal relationship with the treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after the informed consent form is signed. AE includes serious as well as Non-serious AEs. Serious adverse event (SAE) (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, in-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Number of participants with AEs and SAEs are reported. An AE that started at or after initial dosing of study drug, or increased in severity after initial dosing of study drug visit is considered treatment-emergent.
Up to 14 days after last dose (last dose = Day 28)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) at Day 28
Tidsramme: Baseline, Day 28
FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.
Baseline, Day 28
Change From Baseline in Percent Predicted FEV1 at Day 28
Tidsramme: Baseline, Day 28
FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Predicted FEV1 (for age, gender, and height) was calculated using the Knudson method.
Baseline, Day 28
Change From Baseline in Forced Vital Capacity (FVC) at Day 28
Tidsramme: Baseline, Day 28
FVC is the volume of air that can be forcibly exhaled from the lungs after taking the deepest breath possible.
Baseline, Day 28
Change From Baseline in Forced Expiratory Flow Over the Middle Half of the FVC (FEF25-75) at Day 28
Tidsramme: Baseline, Day 28
FEF25-75 is total volume of air exhaled from the lungs over the middle half of the FVC test, expressed as liters per second (L/sec).
Baseline, Day 28
Change From Baseline in Sweat Chloride at Day 28
Tidsramme: Baseline, Day 28
Sweat samples were collected using an approved Macroduct (Wescor) collection device. A volume of greater than or equal to (>=) 15 microliter was required for determination of sweat chloride.
Baseline, Day 28
Change From Baseline in Nasal Potential Difference (NPD) of Zero Chloride Plus Isoproterenol Response at Day 28
Tidsramme: Baseline, Day 28

Nasal potential difference (NPD) provides a direct and sensitive evaluation of sodium and chloride transport in secretory epithelial cells via assessment of transepithelial bioelectric properties. NPD under conditions of zero chloride concentration perfusion solution in the presence of isoproterenol is reported.

NPDs were performed according to Cystic Fibrosis Foundation Therapeutics Development Network (CFFT TDN) Standard Operating Procedure (SOP) 528.00 "Standardization of Measurement of Nasal Membrane Transepithelial Potential Difference (NPD) - electronic data capture (EDC) and Perfusion or Perfusion-Free Probe".
Baseline, Day 28
Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Domain Scores at Day 28
Tidsramme: Baseline, Day 28
The CFQ-R is a validated participant-reported outcome measuring health-related quality of life for participants with cystic fibrosis. CFQ-R domains include: Body, Digestion, Eat, Emotion, Health Perceptions, Physical, Respiratory, Role, Social, Treatment Burden, Vitality, and Weight. Individual domain score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life.
Baseline, Day 28
Maximum Plasma Concentration (Cmax) of VX-809
Tidsramme: Day 1 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post-dose), Day 28 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, 24, and 30-60 hours post dose)
Only participants who received VX-809 were analyzed for this outcome measure.
Day 1 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post-dose), Day 28 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, 24, and 30-60 hours post dose)
Area Under the Concentration Versus Time Curve From Time 0 to 24 Hours (AUC0-24) of VX-809
Tidsramme: Day 1 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post-dose), Day 28 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post dose)
Only participants who received VX-809 were analyzed for this outcome measure.
Day 1 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post-dose), Day 28 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post dose)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Vertex Pharmaceuticals Incorporated

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. marts 2009

Primær færdiggørelse (Faktiske)

1. december 2009

Studieafslutning (Faktiske)

1. december 2009

Datoer for studieregistrering

Først indsendt

18. marts 2009

Først indsendt, der opfyldte QC-kriterier

18. marts 2009

Først opslået (Skøn)

19. marts 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

28. august 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

1. august 2015

Sidst verificeret

1. juni 2015

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • VX08-809-101

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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