This is a multicenter study of a primary chemotherapy regimen in breast cancer patients at risk of developing cardiotoxicity. The aim of the study is to evaluate the response rate at surgery.
This is a phase II, uncontrolled, open label, multicenter study of a primary chemotherapy regimen consisting of four cycles of liposomal pegylated doxorubicine 35 mg/m² IV plus cyclophosphamide 600 mg/m² on Day 1 every 4 weeks followed by paclitaxel 80 mg/m²/week for 12 weeks before surgery in breast cancer patients at risk of developing anthracycline-induced cardiotoxicity. Surgery (tumorectomy, quadrantectomy, or mastectomy plus lymphadenectomy) will be performed 2 to 5 weeks after the last primary chemotherapy infusion. Patients with \> 10% of hormone receptor-positive cells will receive appropriate hormone therapy according to menopausal status. Patients treated with breast-conserving surgery will receive radiation therapy to the mammary gland. Patients with T4 tumors or significant axillary involvement (≥ ypN2) will receive radiation therapy to the breast or chest wall and to the lymph node chains.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
50
Four cycles of liposomal pegylated doxorubicine at 35 mg/m² IV combined with cyclophosphamide at 600 mg/m² on Day 1 every 4 weeks, and followed by paclitaxel 80 mg/m²/week for 12 weeks before surgery.
Hospital Son Llàtzer
Palma de Mallorca, Balearic Islands, Spain
Institut Català d'Oncologia
L'Hospitalet de Llobregat, Barcelona, Spain
Hospital Universitario Sant Joan de Reus
Reus, Tarragona, Spain
Hospital de la Santa Creu i Sant Pau
Barcelona, Spain
Pathological complete response (pCR). pCR is defined as the absence of invasive cancer in the surgical breast specimen. This definition includes evidence of carcinoma in situ only.
Time frame: At surgery.
Clinical response rate (complete plus partial responses). Clinical response will be assessed by imaging using the WHO criteria.
Time frame: Before and after treatment with paclitaxel.
Breast-conserving surgery: tumorectomy or quadrantectomy with or without lymphadenectomy versus mastectomy.
Time frame: At surgery.
Axillary node involvement after primary chemotherapy.
Time frame: At surgery.
Left ventricular ejection fraction measured by echocardiography or MUGA.
Time frame: At baseline, every 2 doxorubicine cycles and before surgery.
Cardiac sign/symptom questionnaire.
Time frame: At baseline, every 2 doxorubicine cycles and before surgery.
Relapse-free survival at 5 years after surgery and overall survival at 5 years after study entry.
Time frame: Until 5 years after surgery.
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Hospital Universitari Vall d'Hebron
Barcelona, Spain
Hospital Universitari Arnau de Vilanova
Lleida, Spain
Hospital Universitario 12 de Octubre
Madrid, Spain
Hospital Universitario Morales Meseguer
Murcia, Spain