ClinicalTrials.gg
RecruitingNCT06722521Updated Aug 7, 2025

GUIDE-CAC: Statin-Ezetimibe Without Aspirin vs. Statin Monotherapy With Aspirin in High Coronary Calcification

A Phase 4 interventional study of Pitavastatin 4mg and ezetimibe 10mg, taken once daily and Pitavastatin 2 mg with aspirin 100 mg, taken once daily. in Primary Prevention and Vascular Calcification, sponsored by Asan Medical Center. Recruiting at 1 site in South Korea. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2025-08-07.

Sponsored by Asan Medical Center · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Started Jul 2025; still recruiting 1 year 4 months later.
Phase
Phase 4
Study type
Interventional
Enrollment
7,435
Allocation
Randomized
Ages
19 Years and older
Sex
All
01

Study summary

A Multicenter, randomized trial comparing the efficacy and safety of intensive lipid-lowering therapy using a statin-ezetimibe combination without aspirin versus statin monotherapy with aspirin in asymptomatic patients with coronary artery calcification

Read the detailed description

Coronary artery calcification is a well-established marker of subclinical atherosclerosis that effectively identifies high-risk individuals for cardiovascular events, even in asymptomatic patients. However, the optimal intensity of preventive interventions-particularly regarding the balance between efficacy and safety-remains unclear in asymptomatic patients with significant coronary calcification.

While aspirin has traditionally been used for the primary prevention of cardiovascular events, recent evidence suggests that its routine use in asymptomatic individuals may carry greater bleeding risks than cardiovascular benefits. In contrast, intensive lipid-lowering therapy with statins and ezetimibe has proven effective in reducing LDL-C levels and preventing cardiovascular events by slowing atherosclerotic progression and stabilizing plaques.

This study aims to evaluate whether intensive lipid-lowering therapy using a statin-ezetimibe combination (without aspirin) is non-inferior to statin monotherapy (with aspirin) in reducing cardiovascular events among patients with significant coronary artery calcification. By comparing these two strategies, we seek to establish whether more aggressive lipid management might obviate the need for aspirin in these intermediate- to high-risk yet asymptomatic patients.

02

Conditions studied

  • Primary Prevention
  • Vascular Calcification

Keywords

  • Cardiovascular Diseases
  • Aspirin
  • Statin
03

In context

Vascular Calcification

82 studies on the registry are indexed under Vascular Calcification; 17 are open to participants now.

This study's planned enrollment of 7,435 is above the median of 64 across 56 interventional studies indexed under Vascular Calcification.

Browse Vascular Calcification studies →

Lead sponsor

Asan Medical Center is the lead sponsor of 578 studies on the registry; 73 are open to participants now.

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

04

Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Adults aged 19 years and older
  2. Asymptomatic patients with significant coronary calcification (Agatston score ≥ 100) and no physiologically significant coronary artery disease (CAD)

    • The coronary CT scan used to establish the CAC score must be performed within 3 years prior to randomization.
    • The assessment of physiological significance must be performed within 6 months prior to randomization
  3. Participants will be eligible for inclusion regardless of prior statin or anti- agents use.

Exclusion criteria

Exclusion Criteria

  1. Major ASCVD events (clinically documented ASCVD)

    If at least one of the following criteria is present via patient history, physical examination, or medical records at the time of screening, the patient is not eligible:

    • Acute coronary syndrome (MI or unstable angina)
    • Coronary revascularization (PCI, CABG) or other arterial revascularization
    • Ischemic stroke (Not )
    • Symptomatic peripheral arterial disease (history of claudication with ABI \<0.90, or previous revascularization or amputation
  2. Patients with physiologically significant CAD

    • Moderate to severe CAD (diameter stenosis >50%) on CCTA with positive strest test (thallium, treadmil, stress echocardiography)
    • Moderate to severe CAD (diameter stenosis >50%) on CAG with positive fractional flow reserve (FFR) \< 0.8
  3. Patients with familial hypercholesterolemia.
  4. Patients with low-density lipoproteins cholesterol (LDL-C) ≥ 190 mg/dL regardless taking a statin or not.
  5. Continuation of PCSK9 inhibitor is required during the clinical trial
  6. Patients with chronic kidney disease (\< 30mL/min/1.73m2)
  7. Advanced liver disease ( B or C)
  8. Hepatic disease or biliary tract obstruction, or significant hepatic enzyme elevation ( or AST > 5 times ).
  9. History of gastrointestinal bleeding, peptic ulcer, or intracranial hemorrhage within 6 months prior screening
  10. Patients with a history of organ transplantation who are on therapy
  11. Concurrent use of other medications that may increase bleeding risk such NOAC and warfarin
  12. A history of significant allergic reaction to aspirin or statin/ezetimibe
  13. A diagnosis of cancer (other than superficial squamous or basal cell skin cancer) in the past 3 years or current treatment for the active cancer.
  14. \< 1 years for any non-cardiac or cardiac causes.
  15. Patient's pregnant or breast-feeding or .
  16. Any abnormality identified at the screening visit, physical examination, laboratory tests, or which, in the judgment of the Investigator, would preclude safe completion of the study.
  17. Unwillingness or inability to comply with the procedures described in this protocol
Terms in these criteria, in plain language(11)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
7,435 participants (estimated)

Study arms

  • Experimental
    Intensive lipid-lowering therapy without aspirin

    In this group, intensive lipid-lowering therapy is performed without aspirin using pitavastatin 4 mg/ezetimibe 10 mg, targeting patients with coronary artery calcification (Agatston score ≥100) who require primary prevention and do not have physiologically significant coronary artery disease. ◦ Intervention Medications: Pitavastatin 4 mg/ezetimibe 10 mg (aspirin excluded)

    Drug: Pitavastatin 4mg and ezetimibe 10mg, taken once daily

  • Active comparator
    Statin Monotherapy with Aspirin

    IIn this group, moderate-intensity lipid-lowering therapy is administered using pitavastatin 2 mg and aspirin for patients with coronary artery calcification (Agatston score ≥100) who require primary prevention and do not have physiologically significant coronary artery disease. ◦ Intervention Medications: Pitavastatin 2 mg and aspirin (Based on the clinician's judgment, the statin dosage may be increased to pitavastatin 4 mg depending on the LDL response, and if there are adverse effects associated with aspirin, it can be replaced with clopidogrel.)

    Drug: Pitavastatin 2 mg with aspirin 100 mg, taken once daily.

Interventions

  • DrugPitavastatin 4mg and ezetimibe 10mg, taken once daily

    Drug page: Pitavastatin

    Intensive lipid-lowering therapy without aspirin

  • DrugPitavastatin 2 mg with aspirin 100 mg, taken once daily.

    Drug page: Pitavastatin

    Moderate-intensity lipid-lowering therapy with aspirin

06

What researchers measure

Primary outcomes

  1. Event rate of a major adverse cardiovascular events

    Death from any cause, myocardial infarction, stroke, urgent coronary revascularization, resuscitated cardiac arrest, or unstable angina related hospitalization

    Time frame: 48months

Secondary outcomes

  1. Event rate of a all cause death

    All-cause mortality was used instead of cardiac mortality to avoid potentially difficult adjudication of causes of death, especially given the relatively low expected mortality rate. In addition, the cause of death will be adjudicated as being due to cardiovascular causes, non-cardiovascular causes, or undetermined causes.

    Time frame: 48months

  2. Event rate of a cardiovascular death

    includes death resulting from an acute myocardial infarction (MI), sudden cardiac death, death due to heart failure (HF), death due to stroke, death due to cardiovascular (CV) procedures, death due to CV hemorrhage, and death due to other CV causes

    Time frame: 48months

  3. Event rate of a spontaneous myocardial infarction

    A spontaneous myocardial infarction related to atherosclerotic plaque rupture, ulceration, fissuring, erosion, or dissection, resulting in intraluminal thrombus in one or more of the coronary arteries

    Time frame: 48months

  4. Event rate of a stroke

    A. Ischemic Stroke B. Hemorrhagic Stroke C. Undetermined Stroke

    Time frame: 48months

  5. Event rate of a urgent coronary revascularization

    1. Elective: 2. Urgent: 3. Emergency: 4. Salvage:

    Time frame: 48months

  6. Event rate of a Resuscitated cardiac arrest

    Time frame: 48months

  7. Event rate of a unstable angina related hospitalization

    Time frame: 48months

  8. Event rate of a composite of hard outcomes (all cause death, myocardial infarction and ischemic stroke)

    Time frame: 48months

  9. Event rate of a Clinically relevant bleeding (Bleeding Academic Research Consortium definition ≥ type 2)

    Bleeding Academic Research Consortium definition ≥ type 2

    Time frame: 48months

  10. Changes of Lipid profile

    Time frame: 48months

  11. Treatment-emergent Serious Adverse Events resulting in Study Drug Discontinuation

    Liver function abnormalities(AST or ALT \> 5x ULN) Renal function abnormalities (serum creatinine increase ≥3-fold from baseline OR increase to ≥4.0 mg/dL OR initiation of renal replacement therapy) Muscle-related events (Statin-associated muscle symptoms OR CK \>5x ULN) (CK reference range: 50-250 IU/L)

    Time frame: 48months

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 7, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06722521
Responsible party
Seung-Whan Lee, M.D., Ph.D. (Principal Investigator, Asan Medical Center) — Principal investigator
First posted
Dec 9, 2024
Start date
Jul 9, 2025
Primary completion
Jun 30, 2032 (estimated)
Completion
Oct 31, 2032 (estimated)
Last update
Aug 7, 2025

Study contacts

Seung-Whan Lee
Contact
seungwlee@amc.seoul.kr
82230103170

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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