Efficacy of Lapaquistat Acetate Alone and With Ezetimibe in Subjects With Primary Dyslipidemia.

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. At Randomization, participants must fulfill the above criteria and also have a mean fasting low density lipoprotein cholesterol levels greater than or equal to 3.36 mmol/L and less than or equal to 5.6 mmol/L and mean triglyceride levels less than or equal to 4.52 mmol/L. Is willing and able to comply with the recommended, standardized diet. Exclusion Criteria: Has active liver disease or jaundice. Has a history of cancer, other than basal cell carcinoma, that had been in remission for less than 5 years prior to the first dose of study drug. Has an endocrine disorder, such as Cushing Syndrome, hyperthyroidism, or inappropriately treated hypothyroidism affecting lipid metabolism. Has a positive hepatitis B surface antigen or hepatitis C virus antibody, as determined by medical history and/or the subject's verbal report. Has a positive human immunodeficiency virus status or was taking antiretroviral medications, as determined by medical history and/or the subject's verbal report. . Has participated in any other clinical studies with lapaquistat acetate, was concurrently participating in another investigational study, had participated in an investigational study within the past 30 days or, for drugs with a long half-life, within a period of less than 5 times the drug's half-life. Has a known hypersensitivity or history of intolerance to lapaquistat acetate or ezetimibe. 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 and/or discontinuation of HMG-CoA reductase inhibitors due to myalgia at any time. Has uncontrolled hypertension despite medical treatment. Has inflammatory bowel or any other malabsorption syndrome or had had gastric bypass surgery 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 any other serious disease or condition at Visit 1 or Randomization that might reduce life expectancy, impaired successful management according to the protocol, or make the participant unsuitable to receive study drug. Has a history of coronary heart disease or coronary heart disease-risk factors comprised of: Diabetes mellitus type 1 or 2 History or presence of myocardial infarction, angina pectoris, unstable angina, coronary angioplasty, coronary or peripheral arterial surgery (bypass graft), aortic aneurysm, transient ischemic attacks, or cerebrovascular accident; Multiple risk factors that confer a 10-year risk of coronary heart disease greater than 20% based on the Framingham risk score.