HER2-positive Breast Cancer
Conditions
Brief summary
This is a single-center phase Ⅱ study designed to evaluated the efficacy and safety of pegylated liposomal doxorubicin(PLD)in combination with trastuzumab in HER-2 positive metastatic breast cancer .
Interventions
Eligible patients will be treated with the PLD+trastuzumab regimen until the disease progresses or intolerable toxicity
Sponsors
Study design
Eligibility
Inclusion criteria
* Ability to understand and voluntarily receive the research procedures according to protocol,willingness to sign the written informed consent document; * Female patients aged from 18 to 70 years old; * Histologically confirmed as invasive breast cancer; * HER-2 Positive(defined by: IHC 3+ or ISH positive), regardless of HR status; * Recurrence after adjuvant therapy or metastatic breast cancer,and chemotherapy naïve in the metastatic setting or had one prior regimen for metastatic breast cancer; * Patients must have measurable disease according to RECIST criteria Version 1.1(Brain metastases lesions and bone metastases lesions were excluded); * The adverse event caused by prior therapy has recovered, or stabilized, or does not affect the study administration according to the investigator's judgment; * Performance status 0-1; * Life expectancy of at least 3 months; * Left ventricular ejection fraction (LVEF)≥55%; * Brain natriuretic peptide (BNP) and cardiac troponin T (cTnT) were in the normal range; * Patients must have normal ECG; * Bone marrow function: absolute neutrophil count (ANC)≥1.5×109/L,platelets≥100×109/L,hemoglobin ≥90g/L; * Hepatic function:alanine aminotransferase(ALT) and aspartate aminotransferase(AST) ≤2.5×ULN,serum total bilirubin≤ 1.5×ULN,or ≤2.5×ULN who has Gilbert's syndrome; * Renal function:serum creatinine≤1.5×ULN; * Coagulation function:the international standardized ratio (INR) ≤1.5×ULN, prothrombin time (PT) or the activated partial thrombin time (APTT) ≤1.5×ULN.
Exclusion criteria
* Patients with symptomatic brain metastases. * Patients who are known or suspected to be allergic to the active ingredient or excipients of the investigational drug. * Prior cumulative dose of 240 mg/m2 for doxorubicin and 400 mg/m2 for epirubicin. * Prior treatment with anthracyclines has caused cardiotoxicity, or failed (disease progression during therapy or recurrence and metastasis within 12 months after adjuvant therapy). * Prior mediastinal radiotherapy. * Participation in other clinical trials within 4 weeks before enrollment. * Severe cardiovascular disease, including history of congestive heart failure, acute myocardial infarction within 6 months before enrollment, transmural myocardial infarction measured by ECG, uncontrolled arrhythmia, angina requiring therapy, clinically significant valvular heart disease, uncontrolled hypertension. * Severe or uncontrolled infection. * Positivity for HIV, Hepatitis B or C. * Active malignancy in the past 5 years (other than carcinoma in situ of the cervix or basal cell carcinoma of the skin). * Patients who are pregnant , breastfeeding ,or refuse to use adequate contraception during the course of participation. * Need to concurrent other cancer therapy(other than palliative care for non-target lesions). * Other ineligible conditions according to the researcher's judgment.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Objective response rate (ORR) | approximately 6 months | The ORR will be calculated as the proportion of patients in the Efficacy Evaluable Patient Set who achieve complete response (CR) and partial response (PR) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Progression-free survival (PFS) | approximately 1.5 years | PFS will be defined as the time from first dose of study drug until documentation of disease progression or death from any cause |
| Incidence and Severity of adverse events | approximately 1.5 years | — |
Countries
China