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Goal Achievement After Utilizing an Anti-PCSK9 Antibody in Statin Intolerant Subjects-3 (GAUSS-3)

1 novembre 2018 mis à jour par: Amgen

A Double-blind, Randomized, Multicenter Study to Evaluate the Safety and Efficacy of Evolocumab, Compared With Ezetimibe, in Hypercholesterolemic Subjects Unable to Tolerate an Effective Dose of a HMG-CoA Reductase Inhibitor Due to Muscle Related Side Effects

The primary objective of this study was to evaluate the effect of 24 weeks of evolocumab administered subcutaneously (SC) every month, compared with ezetimibe, on low-density lipoprotein cholesterol (LDL-C) levels in adults with high cholesterol who are unable to tolerate an effective dose of a statin due to muscle-related side effects (MRSE).

Aperçu de l'étude

Description détaillée

The study is divided into 3 parts (A, B, C). After an initial 4-week washout period in which any statins, ezetimibe, or other lipid-lowering agents were discontinued, participants were enrolled in phase A, a double-blind, placebo-controlled crossover procedure to rechallenge patients with atorvastatin. Patients were randomly assigned in a 1:1 ratio to receive either atorvastatin (20 mg daily) or matching placebo for the first 10 weeks (period 1), then underwent a 2-week washout period, followed by crossover to the alternate therapy for a second 10-week period (period 2). Patients who experienced intolerable muscle symptoms during the first period did not complete the full 10 weeks of exposure but entered a 2-week washout period before proceeding to period 2.

Participants who did not develop muscle-related side effects were removed from the study, as were patients who reported muscle-related side effects during a placebo period.

After completion of phase A, patients who experienced muscle-related adverse effects while taking atorvastatin but not placebo were eligible for phase B, a 24-week, double-blind randomization to ezetimibe or evolocumab using a double-dummy design in which patients received either injectable placebo and oral ezetimibe or injectable evolocumab and oral placebo. A patient could proceed directly to phase B if they had a documented history of creatine kinase (CK) elevation more than 10 times the upper limit of normal accompanied by muscle symptoms while taking statin therapy, with documented resolution of both CK elevation and symptoms upon discontinuation of statin therapy.

These study procedures were designed to ensure that only patients with reproducible statin-associated muscle symptoms entered phase B of the study. For phase B, participants were randomized 2:1 to receive subcutaneously administered evolocumab (420 mg monthly) or oral ezetimibe (10 mg daily). Randomization in part B was stratified by screening LDL-C level (< 180 mg/dL [4.66 mmol/L] vs. ≥ 180 mg/dL) at study baseline.

Participants who completed phase B and did not discontinue SC investigational product for any reason, including an adverse event, were eligible to proceed to the 2-year open-label extension phase C to evaluate the long-term safety and efficacy of evolocumab in statin-intolerant patients. Participants in phase C were allowed to choose quarterly between evolocumab 420 mg SC QM or evolocumab 140 mg SC every 2 weeks (Q2W).

Type d'étude

Interventionnel

Inscription (Réel)

511

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

    • Gauteng
      • Johannesburg, Gauteng, Afrique du Sud, 2157
        • Research Site
      • Midrand, Gauteng, Afrique du Sud, 1685
        • Research Site
    • Western Cape
      • Observatory, Western Cape, Afrique du Sud, 7925
        • Research Site
      • Parow, Western Cape, Afrique du Sud, 7505
        • Research Site
      • Berlin, Allemagne, 13353
        • Research Site
      • Köln, Allemagne, 50937
        • Research Site
      • München, Allemagne, 80638
        • Research Site
    • New South Wales
      • Camperdown, New South Wales, Australie, 2015
        • Research Site
    • Queensland
      • Woolloongabba, Queensland, Australie, 4102
        • Research Site
    • South Australia
      • Ashford, South Australia, Australie, 5035
        • Research Site
      • Quebec, Canada, G1V 4M6
        • Research Site
    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z 1M9
        • Research Site
    • Ontario
      • Hamilton, Ontario, Canada, L8L 2X2
        • Research Site
      • London, Ontario, Canada, N6A 4V2
        • Research Site
      • Peterborough, Ontario, Canada, K9J 0B2
        • Research Site
    • Quebec
      • Montreal, Quebec, Canada, H2W 1R7
        • Research Site
      • St-Charles-Borromee, Quebec, Canada, J6E 6J2
        • Research Site
      • Aarhus N, Danemark, 8200
        • Research Site
      • Glostrup, Danemark, 2600
        • Research Site
      • Nantes Cedex 1, France, 44093
        • Research Site
      • Paris Cedex 13, France, 75651
        • Research Site
      • Vénissieux, France, 69200
        • Research Site
      • Bologna, Italie, 40138
        • Research Site
      • Cagliari, Italie, 09134
        • Research Site
      • Cinisello Balsamo (MI), Italie, 20092
        • Research Site
      • Ferrara, Italie, 44100
        • Research Site
      • Perugia, Italie, 06129
        • Research Site
      • Pisa, Italie, 56124
        • Research Site
      • Oslo, Norvège, 0373
        • Research Site
      • Ålesund, Norvège, 6003
        • Research Site
      • Christchurch, Nouvelle-Zélande, 8011
        • Research Site
      • Amsterdam, Pays-Bas, 1105 AZ
        • Research Site
      • Rotterdam, Pays-Bas, 3045 PM
        • Research Site
      • Zwijndrecht, Pays-Bas, 3331 LZ
        • Research Site
      • Birmingham, Royaume-Uni, B15 2TH
        • Research Site
      • Glasgow, Royaume-Uni, G12 8TA
        • Research Site
      • Newcastle upon Tyne, Royaume-Uni, NE1 4LP
        • Research Site
      • Hradec Kralove, Tchéquie, 500 05
        • Research Site
      • Praha 2, Tchéquie, 128 08
        • Research Site
      • Praha 4, Tchéquie, 140 21
        • Research Site
    • California
      • Beverly Hills, California, États-Unis, 90211
        • Research Site
      • Huntington Beach, California, États-Unis, 92648
        • Research Site
      • Los Angeles, California, États-Unis, 90048
        • Research Site
      • San Pedro, California, États-Unis, 90732
        • Research Site
    • Georgia
      • Atlanta, Georgia, États-Unis, 30322
        • Research Site
    • Illinois
      • Sterling, Illinois, États-Unis, 61081
        • Research Site
    • Kansas
      • Kansas City, Kansas, États-Unis, 66160
        • Research Site
    • Maryland
      • Baltimore, Maryland, États-Unis, 21201
        • Research Site
      • Towson, Maryland, États-Unis, 21204
        • Research Site
    • Michigan
      • Ann Arbor, Michigan, États-Unis, 48106
        • Research Site
    • Minnesota
      • Rochester, Minnesota, États-Unis, 55905
        • Research Site
    • Missouri
      • Saint Louis, Missouri, États-Unis, 63110
        • Research Site
    • New York
      • New York, New York, États-Unis, 10029
        • Research Site
    • North Carolina
      • Durham, North Carolina, États-Unis, 27710
        • Research Site
    • Ohio
      • Cleveland, Ohio, États-Unis, 44195
        • Research Site
    • Pennsylvania
      • York, Pennsylvania, États-Unis, 17405
        • Research Site
    • South Carolina
      • Charleston, South Carolina, États-Unis, 29425
        • Research Site
    • Texas
      • Houston, Texas, États-Unis, 77030
        • Research Site

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

18 ans à 80 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • Male or female ≥ 18 to ≤ 80 years of age
  • Subject not at LDL-C goal
  • History of statin intolerance
  • Lipid lowering therapy has been stable prior to enrolment for at least 4 weeks
  • Fasting triglycerides ≤ 400 mg/dL

Exclusion Criteria:

  • New York Heart Association (NYHA) III or IV heart failure
  • Uncontrolled cardiac arrhythmia
  • Uncontrolled hypertension
  • Type 1 diabetes
  • Poorly controlled type 2 diabetes
  • Uncontrolled hypothyroidism or hyperthyroidism

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: Quadruple

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Autre: Part A: Atorvastatin 20 mg => Placebo
Participants received atorvastatin 20 mg orally for 10 weeks (period 1) followed by placebo orally for 10 weeks (period 2), separated by a 2-week washout period.
Atorvastatin was supplied as over-encapsulated 20 mg tablets
Autres noms:
  • Lipitor
Placebo matching to atorvastatin supplied as over-encapsulated tablets
Autre: Part A: Placebo => Atorvastatin 20 mg
Participants received placebo orally for 10 weeks (period 1) followed by atorvastatin 20 mg orally for 10 weeks (period 2), separated by a 2-week washout period.
Atorvastatin was supplied as over-encapsulated 20 mg tablets
Autres noms:
  • Lipitor
Placebo matching to atorvastatin supplied as over-encapsulated tablets
Comparateur actif: Part B: Ezetimibe
Participants received 10 mg ezetimibe orally only a day and placebo to evolocumab by subcutaneous injection once a month for 24 weeks.
Ezetimibe was supplied as 10 mg tablets, over-encapsulated for blinding.
Autres noms:
  • Zétia
Placebo matching to evolocumab supplied as single-use prefilled autoinjector/pen(s)
Expérimental: Part B: Evolocumab
Participants received 420 mg evolocumab by subcutaneous injection once a month and placebo to ezetimibe orally once a day for 24 weeks.
Placebo matching to Ezetimibe supplied as over-encapsulated tablets.
Evolocumab supplied as single-use prefilled autoinjector/pen(s)
Autres noms:
  • Repatha
Expérimental: Part C: Open-label Evolocumab
Participants who completed part B and were eligible to proceed to open-label extension part C and could choose quarterly between evolocumab 420 mg once a month or evolocumab 140 mg every 2 weeks for up to 2 years.
Evolocumab supplied as single-use prefilled autoinjector/pen(s)
Autres noms:
  • Repatha

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Délai
Percent Change From Baseline in LDL-C at the Mean of Weeks 22 and 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in LDL-C at Week 24
Délai: Baseline and week 24
Baseline and week 24

Mesures de résultats secondaires

Mesure des résultats
Délai
Change From Baseline in LDL-C at the Mean of Weeks 22 and 24
Délai: Baselie and weeks 22 and 24
Baselie and weeks 22 and 24
Change From Baseline in LDL-C at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percentage of Participants Who Achieved a Mean LDL-C at Weeks 22 and 24 of Less Than 70 mg/dL
Délai: Weeks 22 and 24
Weeks 22 and 24
Percentage of Participants Who Achieved LDL-C at Week 24 of Less Than 70 mg/dL
Délai: Week 24
Week 24
Percent Change From Baseline in Total Cholesterol at the Mean of Weeks 22 and 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in Total Cholesterol at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in Non-high-density Lipoprotein Cholesterol (Non-HDL-C) at the Mean of Weeks 22 and 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in Non-HDL-C at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in Apolipoprotein B at the Mean of Weeks 22 and 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in Apolipoprotein B at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in Total Cholesterol/HDL-C Ratio at the Mean of Weeks 22 and 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in Total Cholesterol/HDL-C Ratio at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in Apolipoprotein B/Apolipoprotein A1 Ratio at the Mean of Weeks 22 and 24
Délai: Baseline and Weeks 22 and 24
Baseline and Weeks 22 and 24
Percent Change From Baseline in Apolipoprotein B/Apolipoprotein A1 Ratio at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in Lipoprotein(a) at the Mean of Weeks 22 and 24
Délai: Baseline and Weeks 22 and 24
Baseline and Weeks 22 and 24
Percent Change From Baseline in Lipoprotein(a) at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in Triglycerides at the Mean of Weeks 22 and 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in Triglycerides at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in High-density Lipoprotein Cholesterol (HDL-C) at Week 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in HDL-C at Week 24
Délai: Baseline and week 24
Baseline and week 24
Percent Change From Baseline in Very Low-density Lipoprotein Cholesterol (VLDL-C) at the Mean of Weeks 22 and 24
Délai: Baseline and weeks 22 and 24
Baseline and weeks 22 and 24
Percent Change From Baseline in VLDL-C at Week 24
Délai: Baseline and week 24
Baseline and week 24

Collaborateurs et enquêteurs

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

Parrainer

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.

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 (Réel)

10 décembre 2013

Achèvement primaire (Réel)

10 novembre 2015

Achèvement de l'étude (Réel)

21 novembre 2017

Dates d'inscription aux études

Première soumission

8 novembre 2013

Première soumission répondant aux critères de contrôle qualité

8 novembre 2013

Première publication (Estimation)

14 novembre 2013

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

29 novembre 2018

Dernière mise à jour soumise répondant aux critères de contrôle qualité

1 novembre 2018

Dernière vérification

1 novembre 2018

Plus d'information

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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