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Biomarker Sub-study to the VYTUL Study

A comparison of the Effects of Vytorin (Ezetimibe and Simvastatin) versus Lipitor (Atorvastatin) in inducing changes to levels of novel serum biomarkers associated with Coronary Heart Disease risk.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12606000377538
Acronym
VYTUL - Biomarker Sub-study
Enrollment
550
Registered
2006-08-29
Start date
2006-09-01
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Investigator initiated separate sub-study to the VYTUL study to measure novel serum biomarkers associated with increased heart disease risk to ascertain whether these biomarkers are predictive of response in this population and whether further work on targeting these biomarkers is warranted. A second part to the substudy will focus on exploring non-physiological external factors that may contribute to ineffective risk factor modification and ultimately increased CHD risk in this population.

Interventions

Oral administration of Vytorin 10/40 (Ezetimibe 10 mg and Simvastatin 40 mg) intervention group

Sponsors

Deartment of Epidemiology and Preventive Medicine CCRE in Therapeutics Monash University
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Participation in the VYTUL study- Capable of and willing to sign written informed consent- Has been treated for at least the last 3 months with a daily dose of atorvastatin40 mg- Existing coronary heart disease and has cholesterol > 4.0 mmol/L measured at Visit 1 OR diabetes mellitus and has measured at Visit 1• cholesterol > 6.5 mmol/L OR• cholesterol > 5.5 mmol/L and HDL < 1 mmol/L- Free of any clinically significant diseases, other than hyperlipidaemia, that would interfere with study evaluations and willing and able to attend all study visits.

Exclusion criteria

Uncontrolled diabetes, defined by a measured HbA1c > 9% as measured at Visit 1-Has alanine aminotransferase (ALT) > 1.5 times Upper Limit of Normal (ULN) as measured at Visit 1- Has aspartate aminotransferase (AST) > 1.5 times ULN as measured at Visit 1-Has creatine kinase (CK) > 1.5 times ULN as measured at Visit 1- Has triglycerides (TG) > 4.5 mmol/L as measured at Visit 1- Has evidence of renal impairment with a serum creatinine > 200 µmol/L as measured at Visit 1- Has known drug or alcohol dependency within 6 months prior to Visit 1-A woman receiving hormonal therapy, including hormone replacement, anyestrogen antagonist/agonist, or oral contraceptives, who have not beenmaintained on a stable dose and regimen for at least 8 weeks and are willingto continue the same regimen for the duration of the study.- A woman of childbearing potential (includes women who are less than 1 yearpostmenopausal or not surgically sterile) not using an acceptable method of birth control (e.g., hormonal contraceptive, medically prescribed IUD, condomin combination with spermicide)- Women who are pregnant or breast feeding- Any condition or situation which, in the opinion of the investigator, might pose arisk to the subject or interfere with participation in the studyProhibited Medication for the Duration of the Study- Medications taken within 5 weeks prior to Visit 1 (Screening Visit) including: macrolide antibiotics, azole antifungals, fibric acid derivatives, niacin- Other medication as listed in the product information sheets for ezetimibe/simvastatin and atorvastatin.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026