Eribulin as a Second-line Treatment in Triple-negative Advanced Breast Cancer

Study Overview
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Brief Summary
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Multicenter, retrospective and prospective, cohort, observational study evaluating the clinical efficacy and tolerability of Eribulin as second-line treatment in accordance with the indications authorized by AIFA in patients with triple negative advanced breast cancer in a real world setting.

Detailed Description
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The study, multicenter, retrospective and prospective, cohort, observational, describes the modalities of treatment with Eribulin as a second line therapy for triple negative breast cancer and clinical outcomes in a population real-world, evaluating any differences with the results obtained in clinical trials. Therapeutic sequences will also be evaluated with the aim of providing a photograph of the choices made in clinical practice in this historical moment characterized by rapid evolution of new molecules available to clinicians. A total of at least 200 patients with triple negative advanced breast cancer treated with Eribulin as second line will be enrolled in the retrospective or prospective cohort. Enrollment period will last 2 years. Pseudoanonymized data will be collected in a electroctronic database (RedCap Cloud); here the list of the main variables collected: Patient Registration Demography Pregnancy test Past history and habits of the patient Previous antineoplastic therapy Anamnesis close to entering the study Vital signs and ECOG performance status (WHO) Blood chemistry tests RECIST 1.1 Baseline and re-evaluations 12 Lead ECG evaluation Eribulin cycles Adverse events Previous and concomitant medications End of study The retrospective analysis of the choices made in clinical practice and the benefits obtained from the second therapeutic lines could provide important data to favor the definition of prospective randomized studies, and guide the clinician towards a better therapeutic path.

Official Title
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Observational Study Evaluating the Role of Eribulin as a Second-line Treatment in Triple-negative Advanced Breast Cancer

Conditions
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Breast Cancer, Metastatic Breast Cancer, Triple Negative Breast Cancer

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Performance status according to ECOG equal to 0-2 Locally advanced or triple negative metastatic breast cancer (HR- and HER2-) confirmed histologically Progressing after first-line chemotherapy for advanced disease Previous anthracyclines and taxanes therapy (in an adjuvant, neoadjuvant or metastatic), unless the patient is ineligible to receive such treatments Treatment with Eribulin mesylate since 2017, in accordance with AIFA indications Adequate haematological, renal and hepatic function, as per clinical practice Written informed consent Exclusion Criteria: Breast cancer HER2 + or HR + Treatment with Eribulin in the context of clinical studies Patients unsuitable for treatment with Eribulin Diagnosis of other malignancies in the two years prior to enrollment, with one exception of adequately treated localized basal cell or squamous cell carcinomas of the skin o cervical carcinomas undergoing curative treatment

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Progression-free survival (PFS) | PFS defined as time from the beginning of treatment to disease progression or death | Entire study duration, approximately 3 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time to progression (TTP) | TTP defined as the time from the beginning of treatment to disease progression or death | Entire study duration, approximately 3 years | 
| Overall Response Rate (ORR) | OOR defined as the percentage of patients who achieved a partial response (PR) or a complete response (CR) as best response according to RECIST 1.1 | Entire study duration, approximately 3 years | 
| Disease Control Rate (DCR) | DCR defined as the percentage of patients who achieved a partial response (PR), a complete response (CR) or a stable disease (SD) as best response according to RECIST 1.1 criteria, according to the site of metastatic disease (bone disease vs visceral disease with or without bone involvement). | Entire study duration, approximately 3 years | 
| Site of progression | Description of sites of progression in patients with first bone relapse | Entire study duration, approximately 3 years | 
| Duration of response and disease control | Duration of response and disease control | Entire study duration, approximately 3 years | 
| Survival after progression | Survival after progression | Entire study duration, approximately 3 years | 
| Number of participants with treatment-related adverse events as assessed by CTCAE v4.0 | Number of participants with treatment-related adverse events as assessed by CTCAE v4.0 | Entire study duration, approximately 3 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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breast cancer, triple negative, second line, eribulin, real world