CClinicalTrials.gg
CompletedNCT00653796Updated Aug 15, 2024

Ezetimibe Plus Atorvastatin Versus Atorvastatin in Untreated Subjects With High Cholesterol (P03434)

A Phase 4 interventional study of Ezetimibe + Atorvastatin and Atorvastatin in Hypercholesterolemia and Atherosclerosis, sponsored by Organon and Co. Completed. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-08-15.

Sponsored by Organon and Co · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 4 years 7 months after the study started (first participant enrolled Sep 2003, registered Apr 2008).
Phase
Phase 4
Study type
Interventional
Enrollment
148
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study was designed to assess whether co-administration of ezetimibe 10 mg with atorvastatin 10 mg in treatment naïve subjects would be more effective than treatment with atorvastatin 10 mg alone for reducing LDL-concentrations.

02

Conditions studied

  • Hypercholesterolemia
  • Atherosclerosis
03

In context

Atherosclerosis

1,567 studies on the registry are indexed under Atherosclerosis; 264 are open to participants now.

This study's enrollment of 148 is above the median of 106 across 882 interventional studies indexed under Atherosclerosis.

Browse Atherosclerosis studies →

Lead sponsor

Organon and Co is the lead sponsor of 478 studies on the registry; none are open to participants now.

Of its 21 completed or terminated interventional studies of FDA-regulated products, 17 (81%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Male and non-pregnant female subjects, who demonstrated willingness to participate and comply with procedures by signing informed consent, and who were >=18 years and \<=75 years of age, were eligible to participate if they had: a baseline LDL-C concentration >=3.3 mmol/L (130 mg/dL) to \<=4.9 mmol/L (190 mg/dL); a baseline triglyceride concentration of \<3.99 mmol/L (350 mg/dL); a documented history of coronary heart disease (CHD); a stable weight history for 4 weeks prior to baseline; completion of the designated washout periods for all prohibited medications; and did not fulfill any of the exclusion criteria for the study.

Exclusion criteria

Exclusion Criteria:

  • Body Mass Index of >=30 kg/m\^2 at baseline (increased to 35 kg/m\^2 in protocol amendment 1
  • Liver transaminase (ALT, AST) >1.5 times the upper limit of normal and with no active liver disease at baseline
  • Evidence of current myopathy (excluding subjects with CK >1.5 times above the upper limit of normal at baseline
  • Clinical lab tests (CBC, blood chemistries, urinalysis) results outside the normal range or unacceptable to the investigator at baseline
  • Type II diabetes mellitus that was poorly controlled (HbA1c>9%), newly diagnosed, or changed their anti-diabetic therapy within 3 months of baseline
  • Type I diabetes mellitus and not on a stable insulin regimen for 3 months prior to baseline or who had a recent history of repeated hypoglycaemia or unstable glycaemic control
  • Known hypersensitivity to HMG-CoA reductase inhibitors
  • Alcohol consumption >14 units (women)/21 units (men) (unit = 0.5 pint of beer or wine, or single measure of spirits)
  • Pregnancy, lactation, or any condition or situation which, in the opinion of the investigator, posed a risk to the subject or interfered with participation in this study.
  • Any of the following medical conditions: HIV positive; congestive heart failure defined by NYHA as Class III or IV; uncontrolled cardiac arrhythmia; MI, acute coronary insufficiency, CABG, or angioplasty within 3 months of baseline; unstable or severe peripheral artery disease within 3 months of baseline; newly diagnosed or unstable angina pectoris at baseline; uncontrolled hypertension with systolic blood pressure >100 mm Hg at baseline; uncontrolled endocrine or metabolic disease known to influence serum lipids or lipoproteins; impaired renal function or nephritic syndrome at baseline; disorders of the hematological, gastrointestinal, or central nervous systems; diseases other than hyperlipidaemia or coronary heart disease that would have interfered with study evaluations; and cancer.
  • Drug abuse or emotional or intellectual problems;
  • Use of certain drugs, food, or other agents known to alter cholesterol levels or to cause pharmacokinetic interactions with either ezetimibe or atorvastatin
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
148 participants (actual)

Study arms

  • Experimental
    Ezetimibe + Atorvastatin

    Drug: Ezetimibe + Atorvastatin

  • Active comparator
    Atorvastatin

    Drug: Atorvastatin

Interventions

  • DrugEzetimibe + Atorvastatin

    oral tablets: ezetimibe 10 mg + atorvastatin 10 mg once daily for 6 weeks

    Also known as: SCH 58235, Zetia, Lipitor

  • DrugAtorvastatin

    oral tablets: atorvastatin 10 mg + ezetimibe placebo once daily for 6 weeks

    Also known as: Lipitor

06

What researchers measure

Primary outcomes

  1. Percent change in LDL-C from baseline to endpoint.

    Time frame: 6 weeks

Secondary outcomes

  1. Percent change from baseline to endpoint in total cholesterol, HDL-C and triglycerides.

    Time frame: 6 weeks

  2. Safety: adverse events, laboratory test results, vital signs.

    Time frame: Throughout study

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Blagden MD, Chipperfield R. Efficacy and safety of ezetimibe co-administered with atorvastatin in untreated patients with primary hypercholesterolaemia and coronary heart disease. Curr Med Res Opin. 2007 Apr;23(4):767-75. doi: 10.1185/030079907x182059. PubMed 17407633 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00653796
Lead sponsor
Organon and Co
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Apr 7, 2008
Start date
Sep 1, 2003
Primary completion
Aug 1, 2004
Completion
Aug 1, 2004
Last update
Aug 15, 2024

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion