Combination Followed by Maintenance Chemotherapy Versus CDK4/6 Inhibitor Combined With Endocrine Therapy for HR Low/HER2-negative Advanced Breast Cancer: a Prospective, Randomized, Open-label Phase Ⅱ Clinical Trial
Status: NOT_YET_RECRUITING
Study type: INTERVENTIONAL
Conditions: Advanced Breast Cancer|Treatment|HR Low/HER2 Negative
Interventions: DRUG: Experimental: chemotheyapy|DRUG: Active Comparator: endocrine therapy
Sponsor: Henan Cancer Hospital