Xience Registry In Complex Lesion of Acute Coronary Syndrome Patients witH Ticagrelor (RICH)

The goal of this multicenter prospective clinical cohort study is to investigate the impact of early use of low-dose Ticagrelor-based dual antiplatelet agent therapy (TDAPT) (ticagrelor 120mg daily; l-TDAPT) as compared to standard-dose TDAPT (ticagrelor 180mg daily; s-TDAPT) in outcomes of percutaneous coronary intervention (PCI). The main question it aims to answer are: Given the low ischemic risk and high bleeding tendency in Asians, the low dose TDAPT may provide better net clinical benefits of ischemic and bleeding events than the standard dose TDAPT.