Efficacy and Safety of Ribociclib Combined With AI Versus Physician&Amp;#39;s Choice of Chemotherapy Sequential Endocrine Therapy in ER Middle-low-expression/HER2-negative Advanced Breast Cancer (Rachel)
Conditions
Interventions
- DRUG: Ribociclib combined with AI±OFS
- DRUG: physician's choice of chemotherapy sequential Ribociclib combined with AI±OFS
Sponsor
The First Affiliated Hospital with Nanjing Medical University
Collaborators
- [object Object]
- [object Object]
- [object Object]