Target-Oriented Strategy of Ultra-Low LDL-C (<1.0 vs. 1.0-1.39 mmol/L) in Extreme-High-Risk ASCVD Patients: Clinical Benefit, Safety and Cost-Effectiveness Assessment

Condition(s) studied

Investigational drug(s) / intervention(s)

Lipid-lowering therapy targeting LDL-C <1.0 mmol/L: Statin-ezetimibe-based lipid-lowering therapy with mandatory titration-maintenance-off-target correction algorithm. PCSK9 inhibitor is sequentially added and dose-adjusted based on centralized blinded lipid test results to achieve LDL-C level \<1.0 mmol/L.

Lipid-lowering therapy targeting LDL-C 1.0-1.39 mmol/L: Standard statin-ezetimibe lipid-lowering therapy. Mandatory dose reduction (discontinue ezetimibe → halve statin → discontinue statin) will be performed if LDL-C drops below 1.0 mmol/L, to maintain LDL-C within 1.0-1.39 mmol/L.

Study summary

The goal of this clinical trial is to learn whether an ultra-low LDL-C target (\<1.0 mmol/L) can improve clinical outcomes compared with a moderately low LDL-C target (1.0-1.39 mmol/L) in Chinese patients with extreme-high-risk atherosclerotic cardiovascular disease (ASCVD). It also aims to evaluate long-term safety and cost-effectiveness, and explore potential benefit subgroups and underlying mechanisms. The main questions it aims to answer are:

Does an LDL-C target \<1.0 mmol/L reduce major adverse cardiovascular events (MACE-4: cardiovascular death, non-fatal myocardial infarction, non-fatal ischemic stroke, urgent coronary revascularization) compared with a target of 1.0-1.39 mmol/L?What are the long-term safety risks including cognitive decline, hemorrhagic stroke, new-onset diabetes, new malignancies and severe adverse drug reactions under different LDL-C targets?Researchers will compare participants receiving an LDL-C target \<1.0 mmol/L with those receiving a target of 1.0-1.39 mmol/L to see if the ultra-low LDL-C strategy provides better clinical benefit with acceptable safety and economic value.

Participants will:

Receive lipid-lowering therapy following a mandatory titration-maintenance-off-target correction algorithm according to their assigned LDL-C target Undergo routine follow-up every 3 months, cognitive assessment every 6 months, and comprehensive annual re-examinations for a median of 2 years and up to 5 years Have centralized blinded lipid testing and endpoint adjudication by an independent Clinical Event Committee

Eligibility

Primary outcome measure(s)

• Major Adverse Cardiovascular Events-4 (MACE-4) — Median 2 years, up to 5 years from randomization
  Composite endpoint including cardiovascular death, non-fatal myocardial infarction, non-fatal ischemic stroke, and urgent coronary revascularization.

Trial sites (1)

More Beijing Anzhen Hospital trials in China

Other trials for the same condition