Efficacy and Safety of Trastuzumab Rezetecan Followed by CDK4/6 Inhibitors and Endocrine Therapy in HR+/HER2-Low/Ultra-Low Advanced Breast Cancer
Conditions
Interventions
- DRUG: Trastuzumab rezetecan + CDK4/6 inhibitors + endocrine therapy
Sponsor
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University