Anlotinib-based Combination Therapy in Patients with Hormone Receptor-positive(HR+) Metastatic Breast Cancer(MBC) .
A New Option for Post-CDK4/6is Resistance Era: Multicenter Real-world Study of Anlotinib-based Combination Therapy in Hormone Receptor-positive Metastatic Breast Cancer Resistant to CDK4/6is.
1 other identifier
observational
80
1 country
1
Brief Summary
Cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitors combined with hormonal therapy are the current standard frontline treatment for patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2 (HER-2)-negative metastatic breast cancer (MBC). However, the optimal treatment after progression on CDK4/6 inhibitors remains unknown. Anlotinib is an oral multi-target tyrosine kinase inhibitor (TKI) that strongly inhibits VEGFR, PDGFR, FGFR, and c-kit. This study aimed to evaluate the safety and efficacy of anlotinib-based combination therapy in patients with HR+ MBC previously treated with a CDK4/6 inhibitor.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Dec 2024
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 3, 2024
CompletedStudy Start
First participant enrolled
December 5, 2024
CompletedFirst Posted
Study publicly available on registry
December 16, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 30, 2025
CompletedDecember 16, 2024
December 1, 2024
12 months
November 3, 2024
December 13, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Progression free survival (PFS)
Progression-free survival estimated using Kaplan-Meier methods is defined as the time from the date of informed consent to the earlier of death or disease progression. Patients alive without disease progression are censored at the date of last disease evaluation. Progressive disease (PD) based on RECIST 1.1 is at least a 20% increase in the sum of longest diameter (LD) of target lesions taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions. Equivocal progression of non-target lesions also qualifies as PD.
through study completion, an average of 1 year
Secondary Outcomes (4)
Objective response rate (ORR)
through study completion, an average of 1 year
Disease control rate (DCR)
through study completion, an average of 1 year
Overall survival(OS)
through study completion, an average of 5 year
Incidence of Treatment-Emergent Adverse Events (Safety)
through study completion, an average of 1 year
Interventions
Anlotinib (8/10/12 mg daily, Day 1-14 of each cycle) was administered orally to fasting patients, with dose reductions to 10 mg or 8 mg in cases of intolerable toxicity. Combination agents included eribulin, nab-paclitaxel, etoposide, capecitabine, pembrolizumab, sintilimab, or fulvestrant, among others.
Eligibility Criteria
HR+ metastatic breast cancer previously treated with CDK4/6is
You may qualify if:
- Female patients aged 18 to 75 years, with an ECOG score of 0-1, and an expected survival of at least 3 months;
- Presence of measurable lesions as defined by RECIST 1.1 criteria;
- Histopathologically confirmed HR-positive/HER2-negative breast cancer. HER2 negativity is determined by an immunohistochemistry (IHC) result of HER2 (0/1+). If the result is HER2 (++), a FISH or CISH test is required to confirm the absence of HER2 amplification;
- Patients who have undergone multiple lines of advanced therapy with no remaining standard treatment options;
- Prior treatment with at least one line of CDK4/6 inhibitors and endocrine therapy;
- Disease progression following aromatase inhibitor (AI) or fulvestrant combined with CDK4/6 inhibitors, either as adjuvant therapy or as systemic treatment for advanced disease.
You may not qualify if:
- Patients with HER2-positive breast cancer confirmed by histology or cytology;
- Patients who discontinued therapy due to non-disease progression reasons, such as adverse events or other non-medical factors;
- Detection of a second primary malignant tumor at the time of enrollment;
- Failure to complete CDK4/6 inhibitor therapy;
- Pregnant or breastfeeding patients;
- Presence of third-space fluid accumulation (e.g., pleural effusion, ascites, pericardial effusion) that cannot be managed through drainage or other methods;
- Patients previously treated with anti-angiogenic agents, including small molecules such as anlotinib or apatinib, and large molecules such as bevacizumab;
- Patients currently receiving any other anti-tumor treatment for any other malignancies.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Hunan Provincial Tumor Hospital
Changsha, Hunan, China
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 3, 2024
First Posted
December 16, 2024
Study Start
December 5, 2024
Primary Completion
December 1, 2025
Study Completion
December 30, 2025
Last Updated
December 16, 2024
Record last verified: 2024-12