Advanced Breast Cancer, HR+/HER2- Breast Cancer
Conditions
Keywords
HR+/HER2- breast cancer, Advanced Breast Cancer
Brief summary
This is a randomized, controlled, open-label, phase III study to explore the efficacy and safety of Apatinib in combination with standard first-line endocrine therapy for the HR+/ HER2-SNF4 subtype of advanced breast cancer. The study was used to explore the efficacy of Apatinib in combination with standard endocrine therapy.
Interventions
Apatinib is a kind of TKI inhibitor.
Dalpiciclib (SHR6390) is a kind of CDK4/6 inhibitor that has demonstrated tolerability and preliminary clinical activity in patients with heavily pretreated hormone receptor-positive, HER2-negative advanced breast cancer.
Endocrine therapy combined with CDK4/6 inhibitors is the standard first-line therapy for advanced luminal breast cancer. Investigators choose endocrine therapy including Letrozole, Anastrozole, Exemestane, and Fulvestrant. Postmenopausal participants should use Goserelin.
Sponsors
Study design
Eligibility
Inclusion criteria
* Inclusion Criteria: * Patients need to meet all of the following conditions * Patients must be ≥18 and ≤ 75 years of age; * Pathologically confirmed breast cancer is HR+/HER2- breast cancer (IHC ER >10%, or/and PR>10%, HER 0 OR +, if HER2++, FISH negative); * SNF4 subtype definition: SNF4 subtype confirmed by digital pathology of H&E sections; * Locally advanced breast cancer (radical local therapy is not possible) or metastatic breast cancer (without using adjuvant CDK4/6 inhibitors in the past, or one year after adjuvant CDK4/6 inhibitor therapy has ended); * No prior therapy (chemotherapy, targeted therapy, etc.) for advanced or metastatic breast cancer; * Patients with at least one measurable lesion that has not previously received radiation therapy and can be evaluated repeatedly according to RECIST 1.1; * The functions of the main organs are basically normal, and the following conditions are met: 1. Blood routine examination standards should meet: HB≥90g/L (no blood transfusion within 14 days); ANC≥1.5×109/L; PLT≥75×109/L; 2. Biochemical examination shall meet the following standards: TBIL≤1.5×ULN (upper limit of normal value); ALT and AST≤3 x ULN; In case of liver metastasis, ALT and AST≤5×ULN; Serum Cr ≤1.5×ULN, endogenous creatinine clearance > 50ml/min (Cockcroft-Gault formula); * ECOG performance status 0 or 1; The expected survival is more than 3 months; * Fertile female is required to use a medically approved contraceptive during study treatment and for at least 3 months after the last use of the study drug; * Patients voluntarily join the study, sign the informed consent, have good compliance, and cooperate with follow-up.
Exclusion criteria
* Patients with any of the following conditions were excluded from the study * Patients with central nervous system metastasis out of control (symptoms need to use glucocorticoids or mannitol). * A history of clinically significant or uncontrolled heart disease, including congestive heart failure, angina pectoris, myocardial infarction within the last 6 months, or ventricular arrhythmia; * Radiotherapy, chemotherapy, surgery, other targeted therapy, and immunotherapy for advanced HR+/HER2- breast cancer within 4 weeks before the first administration of drugs used in this study. * Pregnant or lactating patients; * Other malignancies within the previous 3 years, excluding cured skin basal cell carcinoma and cervical carcinoma in situ; * Significant comorbid medical conditions, including mental illnesses that the investigator or sponsor believes would adversely affect the patient's participation in the study; * Allergic physique, or known allergic history of the drug components of this program; Or allergic to other monoclonal antibodies; * The investigator does not consider the patient suitable for participation in any other circumstances of the study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Progression Free Survival (PFS) | Approximately 5 years | The interval from randomization until the first occurrence of disease progression (according to RECIST 1.1) or death from any cause, which ever occurs first. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Clinical Benefit Rate (CBR) | Approximately 5 years | CBR is the total percentage of participants who achieved a complete response, partial response, or had stable disease for 6 months or more. |
| Objective Response Rate (ORR) | Approximately 5 years | ORR is defined as the proportion of participants who have a complete response (CR) or partial response (PR) based on BICR and investigator assessment using RECIST 1.1. |
| Overall Survival (OS) | Approximately 5 years | OS is defined as the time from randomisation until the date of death due to any cause. |
| Safety and tolerability | Approximately 5 years | Number of adverse events according to NCI-CTCAE Version 5.0 per each treatment arm. |
Countries
China