Chemo-free in Older (≥65) Node-Positive ER+/HER2- Breast Cancer
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Chemotherapy, CDK4/6 Inhibitor, Endocrine therapy.
- Who it may be relevant to
- Registry conditions: Breast Cancer, Adjuvant Therapy. Basic parameters: from 65 years · Female.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Study Evaluating Node-positive, ER+/HER2- In Older (≥65 Years) Breast Cancer Patients for Chemotherapy Exemption: A Randomized, Open-label, Multicenter Phase III Clinical Trial
Overview
This study is a prospective, open-label, multicenter, randomized controlled Phase III clinical trial. Based on the use of CDK4/6 inhibitors in endocrine-sensitive luminal-type (ER+/HER2-) breast cancer, it aims to explore the possibility of chemotherapy exemption in elderly patients (aged \>65 years) with lymph node-positive, HR+/HER2- breast cancer.
Interventions
- Drug Chemotherapy
Chemotherapy options at physician's discretion: TC, EC-T(wP), or capecitabine. - Drug CDK4/6 Inhibitor
All patients will receive CDK4/6 inhibitor (abemaciclib/ribociclib/dalpiciclib/palbociclib) - Drug Endocrine therapy
Endocrine therapy (letrozole/anastrozole/exemestane)
Primary outcome measures
- 5-years Invasive disease free survival [Time frame: 5 years]
Secondary outcome measures (4)
- Overall Survival (OS) [Time frame: Approximately 5 years]
- Safety including adverse events (AEs), severe adverse events (SAEs) and adverse events of special interest (AESI). [Time frame: Up to approximately 3 years]
- Geriatric assessment (G-8) [Time frame: Up to approximately 3 years]
- Clinical Frailty Scale [Time frame: Up to approximately 3 years]
Eligibility criteria
Inclusion criteria
-1. Age: Female patients aged ≥65 years. 2. Disease Status: Histologically confirmed early-stage breast cancer after surgery with ER expression ≥50% AND one of the following:
- ≥4 positive lymph nodes
- 1-3 positive lymph nodes plus at least one of the following high-risk features: i. High-risk multigene assay result ii. Primary tumor size >2 cm iii. Histologic grade 3 iv. Lymphovascular invasion (LVI) positive v. Ki-67 >20% 3. Treatment Acceptance: Willing to receive adjuvant CDK4/6 inhibitor therapy. 4. Performance Status: ECOG score 0-2. 5. Adequate Organ Function:
a) Hematology (within 14 days, no transfusion): i. Hemoglobin (Hb) ≥90 g/L ii. Absolute neutrophil count (ANC) ≥1.5×10⁹/L iii. Platelets (PLT) ≥100×10⁹/L b) Biochemistry: i. Total bilirubin (TBIL) ≤1.5×ULN ii. ALT/AST ≤3×ULN iii. Serum creatinine (Cr) ≤1×ULN iv. Estimated creatinine clearance (CrCl) >50 mL/min (Cockcroft-Gault formula) 6. Consent \& Compliance: Willing to participate, sign informed consent, and comply with follow-up.
Exclusion criteria
- 1\. Patients who have received neoadjuvant therapy (including chemotherapy, targeted therapy, radiotherapy, or endocrine therapy).
2\. Bilateral breast cancer. 3. History of other malignancies, except: Cured basal cell carcinoma of the skin； Carcinoma in situ of the cervix 4. Distant metastasis (any site). 5. Any T4 lesion (UICC 1987 TNM staging), including: Skin invasion; Fixed mass adherence; Inflammatory breast cancer 6. Concurrent participation in other clinical trials. 7. Severe organ dysfunction (cardiac, pulmonary, hepatic, or renal), including:
a) LVEF <50% (by echocardiography) b) Major cardiovascular/cerebrovascular events within 6 months before randomization: i. Unstable angina ii. Chronic heart failure iii. Uncontrolled hypertension (>150/90 mmHg) iv. Myocardial infarction or stroke c) Poorly controlled diabetes mellitus d) Severe hypertension 8. Known allergy to taxane-based drugs or their excipients. 9. Severe or uncontrolled infections. 10. History of psychoactive drug abuse (unable to abstain) or psychiatric disorders.
11\. Patients deemed ineligible by investigator assessment. 12. Refusal to receive adjuvant CDK4/6 inhibitor therapy.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07005557 · SCHBCC-N089