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

1 augusti 2015 uppdaterad av: 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.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Faktisk)

93

Fas

  • Fas 2

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

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

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

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

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Trippel

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Placebo-jämförare: Placebo
Placebo matched to VX-809 capsule orally once daily for 28 days.
Läkemedel: Placebo
Placebo matched to VX-809 capsules.
Experimentell: VX-809, 25 mg
VX-809, 25 milligram (mg) capsule orally once daily for 28 days.
Läkemedel: VX-809
Capsules
Experimentell: VX-809, 50 mg
VX-809, 50 mg capsule orally once daily for 28 days.
Läkemedel: VX-809
Capsules
Experimentell: VX-809, 100 mg
VX-809, 100 mg capsule orally once daily for 28 days.
Läkemedel: VX-809
Capsules
Experimentell: VX-809, 200 mg
VX-809, 200 mg capsule orally once daily for 28 days.
Läkemedel: VX-809
Capsules

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Safety and Tolerability Based on Adverse Events (AEs)
Tidsram: 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)

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) at Day 28
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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)

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Vertex Pharmaceuticals Incorporated

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 mars 2009

Primärt slutförande (Faktisk)

1 december 2009

Avslutad studie (Faktisk)

1 december 2009

Studieregistreringsdatum

Först inskickad

18 mars 2009

Först inskickad som uppfyllde QC-kriterierna

18 mars 2009

Första postat (Uppskatta)

19 mars 2009

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

28 augusti 2015

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

1 augusti 2015

Senast verifierad

1 juni 2015

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • VX08-809-101

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