This investigation is a prospective, multicenter, randomized controlled, non-inferiority clinical trial, to evaluate the safety and efficacy of the investigational device against alternative models/specifications of the control device. The study will be conducted across multiple Chinese centers, with planned enrollment of 224 patients with symptomatic intracranial atherosclerotic stenosis. Subjects meeting all inclusion criteria and without any exclusion criteria will enter the investigation after providing written informed consent via ethics committee-approved informed consent forms (ICFs). The randomized controlled study plans to enroll 224 patients, stratified by intracranial lesion location (anterior/posterior circulation), through a centralized randomization system. The experimental group will receive the NxiDIME™ Intracranial Drug-Eluting Stent System (RICOTON Technology Co., Ltd.), while the control group will receive the NOVADES® Intracranial Drug-Eluting Stent System.
All subjects underwent follow-up visits on the day of the procedure, within 7 days postoperatively or prior to discharge, and at 30 days, 6 months, and 12 months postoperatively.