Luminal B/HER2-negative Breast Cancer
Conditions
Brief summary
Evaluate the efficacy and safety of Dalpiciclib combined with aromatase inhibitors as a neoadjuvant therapy in Luminal B/HER2-negative breast cancer.
Interventions
Dalpiciclib combined with letrozole or anastrozole
Sponsors
Study design
Eligibility
Inclusion criteria
* Patient is ≥ 18 years-old at the time of consent to participate this trial * Famale stage I-III breast cancer patients * HR-positive(ER≥10%), HER2-negtive invasive breast cancer, either Ki67≥20% and/or PgR\<20% * No prior anti-cancer treatment * ECOG 0-1
Exclusion criteria
* Known to have other aggressive malignant tumor in the past 5 years. * Bilateral breast cancer; Inflammatory breast cancer; Occult breast cancer; Distant metastasis confirmed by pathology. * There are other concomitant diseases that seriously threaten the patient's safety or affect the patient's completion of the study, such as serious infection, liver disease, cardiovascular disease, kidney disease, respiratory disease or uncontrolled diabetes or dyslipidemia. * Female patients during pregnancy or lactation. * The investigator determines that subjects are not appropriate to participate in the study due to other factors.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Complete cell cycle arrest(CCCA, defined as ki67≤2.7%)rate at 2 weeks of treatment | 3 years | Assess ki67 level through biopsy samples of patients |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Objective response rate (ORR) | 3 years | the proportion of people with clinical complete response(CR) or partial response(PR), per RECIST v1.1 |
Countries
China