Effectiveness of Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) Inhibitor Initiation Before Percutaneous Coronary Intervention on Acute Myocardial Infarction Patients

The goal of this clinical trial is to learn if drug tafolecimab works to treat participants with acute myocardial infarction (AMI) scheduled for primary percutaneous coronary intervention (PCI). It will also learn about the safety of drug tafolecimab. The main questions it aims to answer are: * Does drug tafolecimab lower the risk of 1-year major adverse cardiovascular events? * Does drug tafolecimab improve the coronary microvascular dysfunction? * What medical problems do participants have when administering drug tafolecimab by injection? Researchers will compare the results administering drug tafolecimab or not to see if drug tafolecimab works to treat AMI. Participants will: * Administer drug tafolecimab by injection or not every month for 12 months * Receive the standard of care of AMI * Complete the measurement of coronary angiography-derived microcirculation resistance index after PCI * Complete cardiac magnetic resonance after PCI if available * Visit the clinic at 1,6,12 months after the first administration for checkups and tests * Report any discomfort, event or queries at any time

NCT Number	NCT06683131
Lead Sponsor	The Affiliated Hospital of Xuzhou Medical University
Conditions	Acute Myocardial Infarction (AMI)
Enrollment	1,160 participants
Start Date	2025-11-20
Primary Completion	2027-11-30 (estimated)
Study Completion	2027-11-30 (estimated)
Updated on ClinicalTrials.gov	2025-11-21