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A Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Heterozygous for the F508del-CFTR Mutation

8 mai 2018 mis à jour par: Vertex Pharmaceuticals Incorporated

A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Heterozygous for the F508del-CFTR Mutation and With a Second CFTR Mutation That Is Not Likely to Respond to VX-661 and/or Ivacaftor Therapy (F508del/NR)

Study to evaluate the efficacy of VX-661 in combination with ivacaftor (IVA, VX-770) through Week 12 in participants with cystic fibrosis (CF) who are heterozygous for the F508del mutation on the CF transmembrane conductance regulator (CFTR) gene and with a second CFTR mutation that is not likely to respond to VX-661 and/or IVA therapy (F508del/not responsive [NR]).

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Type d'étude

Interventionnel

Inscription (Réel)

168

Phase

  • Phase 3

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • Australie
      • Chermside, Australie
      • Herston, Australie
      • Innsbruck, Australie
      • Westmead, Australie
    • Queensland
      • Brisban, Queensland, Australie
  • Canada
      • Montreal, Canada
    • British Columbia
      • Vancouver, British Columbia, Canada
  • Espagne
      • Barcelona, Espagne
      • Valencia, Espagne
  • France
      • Bron Cedex, France
      • Montpellier Cedex 5, France
      • Paris, France
      • Paris Cedex 14, France
      • Paris Cedex 19, France
  • Israël
      • Haifa, Israël
      • Hashomer, Israël
      • Jerusalem, Israël
      • Petah Tikva, Israël
  • L'Autriche
      • Graz, L'Autriche
      • Innsbruck, L'Autriche
      • Salzburg, L'Autriche
  • États-Unis
    • Alabama
      • Birmingham, Alabama, États-Unis
    • California
      • La Jolla, California, États-Unis
      • Los Angeles, California, États-Unis
    • Colorado
      • Denver, Colorado, États-Unis
    • Florida
      • Miami, Florida, États-Unis
    • Georgia
      • Atlanta, Georgia, États-Unis
    • Illinois
      • Chicago, Illinois, États-Unis
    • Indiana
      • Indianapolis, Indiana, États-Unis
    • Louisiana
      • New Orleans, Louisiana, États-Unis
    • Michigan
      • Ann Arbor, Michigan, États-Unis
      • Detroit, Michigan, États-Unis
    • Minnesota
      • Minneapolis, Minnesota, États-Unis
    • Missouri
      • Kansas City, Missouri, États-Unis
    • Nebraska
      • Omaha, Nebraska, États-Unis
    • New York
      • New York, New York, États-Unis
    • Ohio
      • Cincinnati, Ohio, États-Unis
    • Tennessee
      • Memphis, Tennessee, États-Unis
    • Texas
      • Austin, Texas, États-Unis
      • Dallas, Texas, États-Unis
    • Virginia
      • Richmond, Virginia, États-Unis
    • Washington
      • Seattle, Washington, États-Unis
      • Spokane, Washington, États-Unis

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

12 ans et plus (Enfant, Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • Confirmed diagnosis of CF defined as a sweat chloride value greater than or equal to (>=)60 millimole per liter (mmol/L) by quantitative pilocarpine iontophoresis.
  • Heterozygous for the F508del-CFTR mutation and with a second CFTR mutation that is not likely to respond to VX-661 and/or ivacaftor therapy, genotype to be confirmed via assessment at the Screening Visit.
  • Forced Expiratory Volume in 1 Second (FEV1) >=40 percent (%) and less than or equal to (<=)90% of predicted normal for age, sex, and height at Screening Visit.

Exclusion Criteria:

  • History of any comorbidity that, in the opinion of the investigator, might confound the results of the study or pose an additional risk in administering study drug to the participant.
  • An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy (including antibiotics) for pulmonary disease within 28 days before Day 1 (first dose of study drug).
  • History of solid organ or hematological transplantation.
  • Ongoing or prior participation in an investigational drug study or use of commercially available CFTR modulator within 30 days of screening.
  • Pregnant or nursing females.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Tripler

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: VX-661/IVA
VX-661 100 milligram (mg) plus IVA 150 mg fixed dose combination (FDC) tablet administered orally in the morning and IVA 150 mg film-coated tablet administered orally in the evening up to Week 12.
Médicament: Ivacaftor
Autres noms:
  • VX-770
  • TVA
Médicament: VX-661 plus ivacaftor combination
Comparateur placebo: Placebo
Placebo matched to VX-661 plus IVA FDC tablet administered orally in the morning and placebo matched to IVA film-coated tablet administered orally in the evening up to Week 12.
Médicament: Placebo (matched to VX-661 plus ivacaftor combination)
Médicament: Placebo (matched to ivacaftor)

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Absolute Change From Baseline in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1) Through Week 12
Délai: Baseline, Through Week 12
FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Hankinson and Wang standards were used to calculate percent predicted FEV1 (for age, gender, and height). The Hankinson standard was used for male participants 18 years and older and female participants 16 years and older. The Wang standard was used for male participants aged 12 to 17 years and for female participants aged 12 to 15 years.
Baseline, Through Week 12

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Absolute Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain Score Through Week 12
Délai: Baseline, Through Week 12
The CFQ-R is a validated participant-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.
Baseline, Through Week 12
Number of Pulmonary Exacerbation Events
Délai: Baseline through Week 12
Pulmonary exacerbation was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms. The number of events were reported.
Baseline through Week 12
Number of Pulmonary Exacerbation Events Per Year
Délai: Baseline through Week 12
Pulmonary exacerbation was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms. Total number of days on study is equal to the Week 12 date or the last dose date (whichever occurs last) minus first dose date plus 1. The total number of years (48 weeks) on study is equal to the total number of days on study divided by 336. Pulmonary exacerbation events per year (48 weeks) are reported.
Baseline through Week 12
Absolute Change From Baseline in Body Mass Index (BMI) at Week 12
Délai: Baseline, Week 12
BMI was defined as weight in kilogram (kg) divided by height*height in square meter (m^2).
Baseline, Week 12
Relative Change From Baseline in Percent Predicted FEV1 Through Week 12
Délai: Baseline, Through Week 12
FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Hankinson and Wang standards were used to calculate percent predicted FEV1 (for age, gender, and height). The Hankinson standard was used for male participants 18 years and older and female participants 16 years and older. The Wang standard was used for male participants aged 12 to 17 years and for female participants aged 12 to 15 years.
Baseline, Through Week 12
Absolute Change From Baseline in Sweat Chloride Through Week 12
Délai: Baseline, Through Week 12
Sweat samples were collected using an approved collection device.
Baseline, Through Week 12
Number of Participants With at Least One Pulmonary Exacerbation Through Week 12
Délai: Baseline through Week 12
Pulmonary exacerbation was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms. Time-to-first pulmonary exacerbation was planned to be estimated using Kaplan-Meier (KM) estimates. However, due to less than 50% of events, time-to-first event data was not estimated. Instead, number of participants with at least one pulmonary exacerbation event were collected and are reported.
Baseline through Week 12
Absolute Change From Baseline in BMI Z-score at Week 12 (in Participants Less Than [<] 20 Years Old at the Time of Screening)
Délai: Baseline, Week 12
Z-score is a statistical measure to evaluate how a single data point compares to a standard. It describes whether a mean was above or below the standard and how unusual the measurement is, with range from infinity to +infinity; where 0: same mean, >0: a greater mean, and <0: a lesser mean than the standard. BMI, adjusted for age and sex, was analyzed as BMI-for-age Z-score (BMI z-score). BMI-for-age z-score was calculated by using centers for disease control and prevention (CDC) growth charts for the paediatric population.
Baseline, Week 12
Absolute Change From Baseline in Body Weight at Week 12
Délai: Baseline, Week 12
Baseline, Week 12
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
Délai: Baseline up to Week 16
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. 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, inpatient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Any AE that increased in severity or newly developed at or after initial dosing of study drug to Week 16 was considered treatment-emergent.
Baseline up to Week 16
Trough Plasma Concentrations (Ctrough) of VX-661, VX-661 Metabolite (M1 VX-661), Ivacaftor (IVA) and IVA Metabolite (M1-IVA)
Délai: Pre-morning dose on Week 2, Week 4, Week 8 and Week 12
This outcome was not planned to be assessed in Placebo arm.
Pre-morning dose on Week 2, Week 4, Week 8 and Week 12

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Vertex Pharmaceuticals Incorporated

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude

1 août 2015

Achèvement primaire (Réel)

7 juin 2016

Achèvement de l'étude (Réel)

7 juin 2016

Dates d'inscription aux études

Première soumission

28 juillet 2015

Première soumission répondant aux critères de contrôle qualité

3 août 2015

Première publication (Estimation)

5 août 2015

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

12 juin 2018

Dernière mise à jour soumise répondant aux critères de contrôle qualité

8 mai 2018

Dernière vérification

1 mai 2018

Plus d'information

Termes liés à cette étude

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • VX14-661-107
  • 2014-004787-37 (Numéro EudraCT)

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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