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Efficacy of Lapaquistat Acetate in Subjects With Hypercholesterolemia

23 mai 2012 mis à jour par: Takeda

A Double-blind, Randomized Study to Evaluate the Efficacy and Safety of Lapaquistat Acetate 100 mg in the Morning vs Lapaquistat Acetate 100 mg in the Evening vs Lapaquistat Acetate 50 mg Twice Daily vs Placebo in Subjects With Hypercholesterolemia

The purpose of this study is to determine the role of time of dosing on the lipid-lowering effects of lapaquistat acetate, once daily (QD) or twice daily (BID), in subjects with hypercholesterolemia.

Aperçu de l'étude

Description détaillée

Dyslipidemias are a group of metabolic disorders produced by raised concentrations of lipoproteins, especially low-density lipoprotein cholesterol the lipoprotein that transports endogenous cholesterol from the liver to the peripheral tissues. Increased cholesterol and triglyceride levels lead to an increased risk of arteriosclerosis, the underlying cause of heart attack, strokes and peripheral vascular disease. Despite changes in lifestyle and the availability of potent lipid-lowering agents, cardiovascular disease continues to be the major cause of death in Western Europe and North America.

Lapaquistat acetate is being developed by Takeda for the treatment of hypercholesterolemia.

Type d'étude

Interventionnel

Inscription (Réel)

224

Phase

  • Phase 2

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

    • California
      • Long Beach, California, États-Unis
      • Sacramento, California, États-Unis
      • San Diego, California, États-Unis
    • Florida
      • Hollywood, Florida, États-Unis
      • Jacksonville, Florida, États-Unis
      • New Port Richey, Florida, États-Unis
    • Illinois
      • Chicago, Illinois, États-Unis
    • Kansas
      • Wichita, Kansas, États-Unis
    • Kentucky
      • Louisville, Kentucky, États-Unis
    • New Jersey
      • Margate, New Jersey, États-Unis
    • North Carolina
      • Charlotte, North Carolina, États-Unis
      • Raleigh, North Carolina, États-Unis
      • Statesville, North Carolina, États-Unis
      • Wilmington, North Carolina, États-Unis
      • Winston-Salem, North Carolina, États-Unis
    • Oregon
      • Medford, Oregon, États-Unis
    • Pennsylvania
      • Perkasie, Pennsylvania, États-Unis
      • Sellerville, Pennsylvania, États-Unis
    • Tennessee
      • Bristol, Tennessee, États-Unis
    • Virginia
      • Norfolk, Virginia, États-Unis
      • Richmond, Virginia, États-Unis
    • Wisconsin
      • Madison, Wisconsin, 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

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • Females of childbearing potential who are sexually active must agree to use a medically accepted means of contraception, and can neither be pregnant nor lactating from Screening throughout the duration of the study.
  • Has prior to Randomization a mean low-density lipoprotein cholesterol greater than or equal to 130 mg/dL and less than or equal to 220 mg/dL for 2 consecutive samples.
  • Has prior to Randomization mean triglycerides less than 400 mg/dL for 2 consecutive samples.
  • Is willing and able to comply with a standardized, therapeutic lifestyle change diet or equivalent.

Exclusion Criteria:

  • Has an alanine aminotransferase or aspartate aminotransferase level greater than 2 times the upper limit of normal during the screening period.
  • Has a serum creatinine greater than133 mmol/L during the screening period.
  • Has a creatine phosphokinase greater than 3 times the upper limit of normal, identified during the screening period.
  • Has active liver disease or jaundice.
  • Has a history of cancer that has been in remission for less than 5 years prior to the first dose of study medication.
  • Has an endocrine disorder, such as Cushing syndrome, hyperthyroidism, or inappropriately treated hypothyroidism, affecting lipid metabolism.
  • Has a history of myocardial infarction, angina pectoris, unstable angina, transient ischemic attacks, cerebrovascular accident, peripheral vascular disease, abdomin al aorticaneurysm, coronary angioplasty, coronary or peripheral arterial surgery or multiple risk factors that confer a 10-year risk for cardiovascular disease greater than 20% based on Framingham risk scoring.
  • Has a positive hepatitis B surface antigen, or antibody to hepatitis C virus, as determined by medical history and/or subject's verbal report.
  • Has a positive human immunodeficiency virus status or is taking antiretroviral medications, as determined by medical history and/or subject's verbal report.
  • Has received any investigational compound within 30 days prior to screening Visit 1, or is currently participating in another investigational study.
  • Has received lapaquistat acetate in a previous clinical study or as a therapeutic agent.
  • Has a history or presence of clinically significant food allergy that would prevent adherence to the specialized diet.
  • Has a known heterozygous or homozygous familial hypercholesterolemia or known type III hyperlipoproteinemia.
  • Has fibromyalgia, myopathy, rhabdomyolysis, or unexplained muscle pain.
  • Has uncontrolled hypertension despite treatment at Screening Visit 1.
  • Has had inflammatory bowel or any other malabsorption syndrome or has had gastric bypass or any other surgical procedure for weight loss.
  • Has a history of drug abuse or alcohol abuse within the past 2 years.
  • Has stage I squamous cell carcinoma of the skin.
  • Has type 1 or type 2 diabetes mellitus.
  • Is required to take or intends to continue taking any disallowed medication, any prescription medication, herbal treatment or over-the counter medication that may interfere with evaluation of the study medication, including:

    • Fluvastatin
    • Lovastatin
    • bile acid sequestrants (eg, cholestyramine)
    • intestinal cholesterol uptake inhibitors (eg, ezetimibe)
    • Fibrates (eg, fenofibrate, gemfibrozil)
    • Niacin
    • Cholestin
    • red yeast rice
    • fish oils
    • plant sterols and stanols
    • orlistat
    • sibutramine
    • isotretinoin
    • tacrolimus
    • Probucol
    • Systemic corticosteroids and androgens
    • Potent CYP3A4 inhibitors
    • Cyclosporine
    • Erythromycin
    • Clarithromycin
    • Telithromycin
    • human immunodeficiency virus protease inhibitors
    • amiodarone
    • diltiazem
    • verapamil
    • nefazodone
    • grapefruit juice

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
Comparateur placebo: Placebo BID
Lapaquistat acetate placebo-matching tablets, orally, once daily in the morning and Lapaquistat acetate placebo-matching tablets, orally, once daily in the evening for up to six weeks.
Expérimental: Lapaquistat Acetate 100 mg QD (morning)
Lapaquistat acetate 100 mg, tablets, orally, once daily in the morning and Lapaquistat acetate placebo-matching tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Lapaquistat acetate placebo-matching tablets, orally, once daily in the morning and Lapaquistat acetate 100 mg, tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Lapaquistat acetate 50 mg, tablets, orally, once daily in the morning and Lapaquistat acetate 50 mg, tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Expérimental: Lapaquistat Acetate 100 mg QD (evening)
Lapaquistat acetate 100 mg, tablets, orally, once daily in the morning and Lapaquistat acetate placebo-matching tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Lapaquistat acetate placebo-matching tablets, orally, once daily in the morning and Lapaquistat acetate 100 mg, tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Lapaquistat acetate 50 mg, tablets, orally, once daily in the morning and Lapaquistat acetate 50 mg, tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Expérimental: Lapaquistat Acetate 50 mg BID
Lapaquistat acetate 100 mg, tablets, orally, once daily in the morning and Lapaquistat acetate placebo-matching tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Lapaquistat acetate placebo-matching tablets, orally, once daily in the morning and Lapaquistat acetate 100 mg, tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475
Lapaquistat acetate 50 mg, tablets, orally, once daily in the morning and Lapaquistat acetate 50 mg, tablets, orally, once daily in the evening for up to six weeks.
Autres noms:
  • TAK-475

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Délai
Percent change from Baseline in the Fasting Plasma Low-Density Lipoprotein Cholesterol concentration
Délai: Week 6
Week 6

Mesures de résultats secondaires

Mesure des résultats
Délai
Pourcentage de variation par rapport à la ligne de base du cholestérol des lipoprotéines de haute densité
Délai: Semaine 6
Semaine 6
Change from Baseline in Total Cholesterol
Délai: Week 6
Week 6
Percent change from Baseline in apolipoprotein B
Délai: Week 6
Week 6
Percent change from Baseline in apolipoprotein A1
Délai: Week 6
Week 6
Change from Baseline in Triglycerides
Délai: Week 6
Week 6
Percent change from Baseline in Very Low-Density Lipoprotein Cholesterol
Délai: Week 6
Week 6
Percent change from Baseline in non- High-Density Lipoprotein Cholesterol
Délai: Week 6
Week 6
Percent change from Baseline in derived ratio of Low-Density Lipoprotein Cholesterol / High-Density Lipoprotein Cholesterol
Délai: Week 6
Week 6
Percent change from Baseline in derived ratio of Total Cholesterol / High-Density Lipoprotein Cholesterol
Délai: Week 6
Week 6
Percent change from Baseline in derived ratio of apolipoprotein B / apolipoprotein A1
Délai: Week 6
Week 6
Change from Baseline in high sensitivity C-Reactive Protein.
Délai: Week 6
Week 6

Collaborateurs et enquêteurs

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

Parrainer

Les enquêteurs

  • Directeur d'études: VP, Clinical Science, Takeda

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 juillet 2007

Achèvement primaire (Réel)

1 novembre 2007

Achèvement de l'étude (Réel)

1 novembre 2007

Dates d'inscription aux études

Première soumission

18 mars 2009

Première soumission répondant aux critères de contrôle qualité

18 mars 2009

Première publication (Estimation)

19 mars 2009

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Estimation)

24 mai 2012

Dernière mise à jour soumise répondant aux critères de contrôle qualité

23 mai 2012

Dernière vérification

1 mai 2012

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • TAK-475_201
  • U1111-1122-8404 (Identificateur de registre: WHO)

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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