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

1 agosto 2015 aggiornato da: 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.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

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.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

93

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

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

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Triplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore placebo: Placebo
Placebo matched to VX-809 capsule orally once daily for 28 days.
Placebo matched to VX-809 capsules.
Sperimentale: VX-809, 25 mg
VX-809, 25 milligram (mg) capsule orally once daily for 28 days.
Capsules
Sperimentale: VX-809, 50 mg
VX-809, 50 mg capsule orally once daily for 28 days.
Capsules
Sperimentale: VX-809, 100 mg
VX-809, 100 mg capsule orally once daily for 28 days.
Capsules
Sperimentale: VX-809, 200 mg
VX-809, 200 mg capsule orally once daily for 28 days.
Capsules

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Safety and Tolerability Based on Adverse Events (AEs)
Lasso di tempo: 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)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) at Day 28
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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)

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Pubblicazioni e link utili

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Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 marzo 2009

Completamento primario (Effettivo)

1 dicembre 2009

Completamento dello studio (Effettivo)

1 dicembre 2009

Date di iscrizione allo studio

Primo inviato

18 marzo 2009

Primo inviato che soddisfa i criteri di controllo qualità

18 marzo 2009

Primo Inserito (Stima)

19 marzo 2009

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

28 agosto 2015

Ultimo aggiornamento inviato che soddisfa i criteri QC

1 agosto 2015

Ultimo verificato

1 giugno 2015

Maggiori informazioni

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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