Overview Select the Appropriate Population for Adding CDK4/6i to Neoadjuvant Endocrine Therapy Status: Recruiting Trial end date: 2026-03-25 Target enrollment: Participant gender: Summary Select the appropriate population for adding CDK4/6 inhibitors therapy in high risk early HR+/HER2-breast cancer based on molecular detection Phase: Phase 4 Details Lead Sponsor: Yongsheng WangCollaborator: Jiangsu HengRui Medicine Co., Ltd.Treatments: Letrozole