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Efficacy of Lapaquistat Acetate in Subjects Currently Treated With Lipid-Lowering Therapy.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00251680
Recruitment Status : Completed
First Posted : November 10, 2005
Last Update Posted : May 24, 2012
Sponsor:
Information provided by (Responsible Party):
Takeda

Tracking Information
First Submitted Date  ICMJE November 8, 2005
First Posted Date  ICMJE November 10, 2005
Last Update Posted Date May 24, 2012
Study Start Date  ICMJE October 2005
Actual Primary Completion Date May 2007   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: January 23, 2009)
Change from Baseline in fasting plasma Low Density Lipoprotein cholesterol [ Time Frame: Week 24 or Final Visit ]
Original Primary Outcome Measures  ICMJE
 (submitted: November 8, 2005)
change in LDL-C
Change History Complete list of historical versions of study NCT00251680 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures  ICMJE
 (submitted: January 23, 2009)
  • Change from Baseline in Triglycerides [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in Total Cholesterol [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in High Density Lipoprotein cholesterol [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in Very Low Density Lipoprotein cholesterol [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in apolipoprotein A1 [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in apolipoprotein B [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in non- High Density Lipoprotein cholesterol [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in the ratio of Low Density Lipoprotein cholesterol/High Density Lipoprotein cholesterol [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in the ratio of Total Cholesterol/High Density Lipoprotein cholesterol [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in the ratio of apolipoprotein A1/apolipoprotein B [ Time Frame: Week 24 or Final Visit ]
  • Change from Baseline in high-sensitivity C-reactive protein [ Time Frame: Week 24 or Final Visit ]
  • Percentage of subjects who achieve Low Density Lipoprotein cholesterol concentrations less than 1.81 mmol/L (70 mg/dL) [ Time Frame: Week 24 or Final Visit ]
  • Percentage of subjects who achieve Low Density Lipoprotein cholesterol concentrations less than 2.59 mmol/L (100 mg/dL) [ Time Frame: Week 24 or Final Visit ]
  • Percentage of subjects who achieve Low Density Lipoprotein cholesterol concentrations less than 3.37 mmol/L (130 mg/dL) [ Time Frame: Week 24 or Final Visit ]
  • Best corrected visual acuity [ Time Frame: Week 24 or Final Visit ]
  • Adverse Events [ Time Frame: Weeks 2, 4, 8, 12, 16, 20, and 24 or Final Visit ]
  • Clinical Laboratory Tests [ Time Frame: Weeks 2, 4, 8, 12, 16, 20, and 24 or Final Visit ]
  • Vital Signs [ Time Frame: Weeks 2, 4, 8, 12, 16, 20, and 24 or Final Visit ]
  • 12-lead Electrocardiogram [ Time Frame: Weeks 12 and 24 or Final Visit ]
  • Physical Examination [ Time Frame: Week 24 or Final Visit ]
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Efficacy of Lapaquistat Acetate in Subjects Currently Treated With Lipid-Lowering Therapy.
Official Title  ICMJE A Placebo-Controlled, Double-Blind, Randomized Study to Evaluate the Efficacy and Safety of Lapaquistat Acetate 100 mg in Subjects With Type 2 Diabetes Currently Treated With Lipid-Lowering Therapy
Brief Summary The purpose of the study is to determine the efficacy of lapaquistat acetate, once daily (QD), taken with established lipid-lowering therapy in subjects with type 2 diabetes mellitus.
Detailed Description

Diabetes mellitus is a recognized cause of secondary dyslipidemia, and is also independently considered to be a major cardiovascular risk factor requiring aggressive lipid-lowering treatment. Type 2 diabetes accounts for 85% to 90% of diabetes worldwide. It affects about 2% of the Caucasian population in most Westernized countries, and the prevalence rises with age to 10% in those over 70 years of age. Five percent or more of young- and middle-aged adults in some Asian or Afro-Caribbean groups in the United Kingdom have this condition. Approximately 12 million Americans have type 2 diabetes, and an estimated 20 million more have some degree of glucose intolerance. The greatest cause of mortality in type 2 diabetes is atherosclerotic vascular disease and its sequelae between 75% and 80% of adult subjects with diabetes die of macrovascular complications.

Lapaquistat acetate is a squalene synthase inhibitor currently under development at Takeda for the treatment of dyslipidemia. This study will evaluate the efficacy and safety of lapaquistat acetate co-administered with an established lipid-lowering therapy including atorvastatin, simvastatin, rosuvastatin, or fenofibrate in subjects with type 2 diabetes mellitus.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 3
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Condition  ICMJE Type 2 Diabetes
Intervention  ICMJE
  • Drug: Lapaquistat acetate and lipid-lowering therapy
    Lapaquistat acetate 50 mg, tablets, orally, once daily and stable lipid-lowering therapy for up to 24 weeks.
    Other Names:
    • TAK-475
    • Lipitor
    • Zocor
    • Crestor
    • Tricor
  • Drug: Lipid-lowering therapy
    Lapaquistat acetate placebo-matching tablets, tablets, orally, once daily and stable lipid-lowering therapy for up to 24 weeks.
    Other Names:
    • Lipitor
    • Zocor
    • Crestor
    • Tricor
Study Arms  ICMJE
  • Experimental: Lapaquistat Acetate 50 mg QD
    (and stable lipid-lowering therapy)
    Intervention: Drug: Lapaquistat acetate and lipid-lowering therapy
  • Active Comparator: Stable Lipid-lowering therapy
    Intervention: Drug: Lipid-lowering therapy
Publications * Stein EA, Bays H, O'Brien D, Pedicano J, Piper E, Spezzi A. Lapaquistat acetate: development of a squalene synthase inhibitor for the treatment of hypercholesterolemia. Circulation. 2011 May 10;123(18):1974-85. doi: 10.1161/CIRCULATIONAHA.110.975284. Epub 2011 Apr 25.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: November 8, 2005)
400
Original Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE May 2007
Actual Primary Completion Date May 2007   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Females of childbearing potential who are sexually active must agree to use adequate contraception from screening throughout the duration of the study and for 30 days following the last dose.
  • Has a documented history of dyslipidemia with or without cardiovascular risk factors but without type 1 or 2 diabetes.
  • Is on a stable antidiabetic regimen, which may have included oral antidiabetic medication and/or insulin, for at least 3 months prior to Screening.
  • Prior to Randomization, the participant has a mean low density lipoprotein cholesterol level greater than or equal to 100 mg/dL and less than or equal to 190 mg/dL for 2 consecutive samples.
  • Prior to Randomization, the subject has mean triglyceride level greater than or equal to 400 mg/dL for 2 consecutive samples.
  • Is willing and able to comply with the recommended, standardized diet.

Exclusion Criteria:

  • Has annine aminotransferase or aspartate aminotransferase level greater than 1.5 times the upper limit of normal, identified during screening.
  • Has a serum creatinine greater than 133 mmol/L, identified during screening.
  • Has a creatine kinase greater than 3 times the upper limit of normal, identified during screening.
  • Has active liver disease or jaundice.
  • Has taken any bile acid sequestrants [eg, cholestyramine], and intestinal cholesterol uptake inhibitors [eg, ezetimibe]) from 30 days before Screening until study completion or any fibrates for 6 weeks before Visit 1.
  • Has a previous 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's 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, abdominal aortic aneurysm, coronary angioplasty, coronary or peripheral arterial surgery, or multiple risk factors that confer a 10-year risk for cardiovascular heart disease greater than 20% based on Framingham risk scoring.
  • Has a positive hepatitis B surface antigen or hepatitis C virus antibody test, as determined by medical history.
  • 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 medication 30 days prior to screening, or is participating in an 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 (familial dysbetalipoproteinemia).
  • Has fibromyalgia, myopathy, rhabdomyolysis, or unexplained muscle pain.
  • Has uncontrolled hypertension
  • Has had inflammatory bowel disease 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 a history of high alcohol intake within the previous 2 years.
  • Has type 1 or 2 diabetes mellitus.
  • Subject had a history of photoallergic or phototoxic reaction during treatment with a fibrate or ketoprofen.
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Czech Republic,   Estonia,   Finland,   Germany,   Poland,   Slovakia,   South Africa,   United Kingdom,   United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00251680
Other Study ID Numbers  ICMJE TAK-475/EC304
2005-002316-24 ( EudraCT Number )
U1111-1122-8281 ( Registry Identifier: WHO )
Has Data Monitoring Committee No
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Takeda
Study Sponsor  ICMJE Takeda
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director: Medical Director Takeda
PRS Account Takeda
Verification Date May 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP