This study aims to evaluate MedJ-01 safety and efficacy for de novo or restenosis lesion with target vessel diameter of 2.5mm to 4.25, for subjects undergoing coronary artery stent implantation. The target population is subjects undergoing PCI for angina (stable or unstable), silent ischemia (in absence of symptoms a visually estimated target lesion diameter stenosis of ≥70%, a positive non-invasive stress test, or FFR ≤0.80 must be present), NSTEMI, and recent subacute STEMI (>72 hours from initial presentation and stable). Complex lesions are allowed. A maximum of two target vessels and two lesions per vessel may be treated (two lesions separated by up to 10 mm that can be covered by a single stent are considered as one lesion); the total planned study stenting in the coronary tree cannot exceed 100 mm.