Synergistic Effect of Combination Therapy With Cilostazol and Probucol on Plaque Stabilization and Lesion Regression: Serial Intravascular Ultrasound and Virtual Histology Study(SECURE Study)

An investigator-initiated, placebo-controlled, randomized, multi-center study. Enrolled patients will be randomized after PCI either to the combination therapy group or to the control group. In the combination therapy group, cilostazol 200 mg and probucol 500 mg will be administered daily, whereas the control group will receive cilostazol 200 mg daily only.