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

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00251680
First Posted: November 10, 2005
Last Update Posted: May 24, 2012
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.
Information provided by (Responsible Party):
Takeda
  Purpose
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.

Condition Intervention Phase
Type 2 Diabetes Drug: Lapaquistat acetate and lipid-lowering therapy Drug: Lipid-lowering therapy Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: 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

Resource links provided by NLM:


Further study details as provided by Takeda:

Primary Outcome Measures:
  • Change from Baseline in fasting plasma Low Density Lipoprotein cholesterol [ Time Frame: Week 24 or Final Visit ]

Secondary Outcome Measures:
  • 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 ]

Enrollment: 400
Study Start Date: October 2005
Study Completion Date: May 2007
Primary Completion Date: May 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Lapaquistat Acetate 50 mg QD
(and stable lipid-lowering therapy)
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
Active Comparator: Stable Lipid-lowering therapy 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

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.

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

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.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00251680


  Show 77 Study Locations
Sponsors and Collaborators
Takeda
Investigators
Study Director: Medical Director Takeda
  More Information

Publications:
Responsible Party: Takeda
ClinicalTrials.gov Identifier: NCT00251680     History of Changes
Other Study ID Numbers: TAK-475/EC304
2005-002316-24 ( EudraCT Number )
U1111-1122-8281 ( Registry Identifier: WHO )
First Submitted: November 8, 2005
First Posted: November 10, 2005
Last Update Posted: May 24, 2012
Last Verified: May 2012

Keywords provided by Takeda:
Hyperlipidemia
Drug Therapy

Additional relevant MeSH terms:
Diabetes Mellitus, Type 2
Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Atorvastatin Calcium
Rosuvastatin Calcium
Simvastatin
Fenofibrate
Anticholesteremic Agents
Hypolipidemic Agents
Antimetabolites
Molecular Mechanisms of Pharmacological Action
Lipid Regulating Agents
Hydroxymethylglutaryl-CoA Reductase Inhibitors
Enzyme Inhibitors