[Show abstract][Hide abstract] ABSTRACT: Background:
Based on previous results obtained with non-pegylated liposomal-encapsulated doxorubicin (TLC-D99) together with paclitaxel and trastuzumab in patients with human epidermal growth factor receptor 2 (HER2)-positive locally advanced or metastatic breast cancer (BC), a similar regimen was evaluated in the neoadjuvant setting in a prospectively selected series of consecutive patients with clinical stage II-III BC. Primary and secondary objectives included the rate of pathologic complete response (pCR), safety, and predictive factors of pCR.
Patients received six cycles of TLC-D99 (50 mg/m(2) every 3 weeks), paclitaxel (80 mg/m(2) weekly) and trastuzumab (4 mg/kg initial dose and 2 mg/kg weekly). All patients underwent surgery after treatment. pCR was defined as the absence of invasive cancer cells in the breast and the axilla.
Sixty-two patients with a median age of 46.6 years were analyzed. Stage IIIA was diagnosed in 43.5% of patients and 14.5% had inflammatory BC. Conservative surgery was performed in 46.8% of the patients and pCR was achieved in 63% (95% CI 50.5-75.5). Patients with estrogen receptor (ER)-negative tumors presented a significantly higher pCR rate than patients with ER-positive tumors (74.4 vs 43.5%; P = 0.028). Forty-five patients (72.6%) completed study treatment and 80.6% received at least five treatment cycles. No patients developed congestive heart failure and 14.5% of patients showed a ≥ 10 % decrease in the left ventricular ejection fraction.
The triple combination therapy assessed is effective and safe, offering a high pCR rate in patients with HER2-positive BC.
No preview · Article · Jul 2014 · International Journal of Clinical Oncology
[Show abstract][Hide abstract] ABSTRACT: we previously reported a phase I trial of liposome-encapsulated doxorubicin citrate (LD), docetaxel and trastuzumab as neoadjuvant in stages II and IIIA human epidermal growth factor receptor 2-overexpressing breast cancer patients. This study evaluates the efficacy of this regimen in a phase II trial.
patients were treated with LD 50 mg/m(2) and docetaxel 60 mg/m(2) every 21days associated with standard trastuzumab dose and pegfilgrastim support.
fifty-nine patients were enrolled; median age: 48 years (range 24-71 years); premenopausal patients: 36 (61%); 19 patients (32%) presented stage IIIA disease and 40 patients (67%) stage II; histological grades 2-3 tumors: 50 patients (84%) and estrogen receptor-progesterone receptor negative: 28 patients (47%). In all, 27% achieved a pathological complete response in breast and axilla (grade 5-Miller and Payne classification); 15% of patients achieved grade 4. Clinical and radiological response rates were 86% and 81%, respectively. Forty-two patients (71%) underwent breast-conserving surgery. The main grades 3-4 toxic effects were non-febrile neutropenia (29%) and fatigue (8%). Grade 2 left ventricular ejection fraction decline was observed in nine patients. No congestive heart failure was observed.
LD plus docetaxel combination associated with trastuzumab as neoadjuvant is active in breast cancer and entails a favorable cardiotoxicity profile. This regimen is a new treatment option in these patients.
No preview · Article · Jan 2011 · Annals of Oncology