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Comparative study analyzing survival and safety of bevacizumab/carboplatin/paclitaxel versus carboplatin/docetaxel in initial treatment of metastatic Her-2-negative breast cancer

Authors Kader Y, Spielmann, El-Nahas T, Sakr A, Metwally

Received 3 March 2013

Accepted for publication 15 April 2013

Published 17 June 2013 Volume 2013:5 Pages 37—42


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4

Yasser Abdel Kader,1 Marc Spielmann,2 Tamer El-Nahas,1 Amr Sakr,1 Hassan Metwally3

Department of Clinical Oncology, Cairo University, Cairo, Egypt; 2Department of Medical Oncology, Institute Gustave Rousssy, VuilleJuif, Paris, France; 3Department of Clinical Oncology, Monufia University, Monufia, Egypt

Purpose: In view of the previous reports demonstrating the positive outcome of bevacizumab in metastatic breast cancer, we aimed at comparing the role of bevacizumab-based metronomic combination with taxane (paclitaxel) versus a different taxane (docetaxel)-based regimen in addition to carboplatin as initial treatment for metastatic Her-2-negative breast cancer.
Patients and methods: This is a randomized Phase III study comparing the progression-free survival (PFS) and safety in Her-2-negative female patients with initial diagnosis of metastatic breast cancer with World Health Organization performance status of 0–II. Forty-one patients were randomized from September 2008 to July 2009 to receive either; (1) bevacizumab 5 mg/kg day 1 and day 15, carboplatin area under the curve (AUC)-2 day 1, day 8, and day 15, and paclitaxel 60 mg/m2 day 1, day 8, and day 15 (arm-I); or (2) carboplatin AUC-5 day 1, docetaxel 75 mg/m2 day 1 (arm-II). The Kaplan–Meier method was used for estimating survival; log-rank test for comparing survival curves. The primary end point was PFS, and secondary end points were overall survival (OS) and safety.
Results: PFS was 10 months in arm I versus 10.2 months in arm II (P = 0.9). The OS rate was similar in both arms: 37.6 months for arm I versus 37.4 months for arm II (P = 0.92). The toxicity revealed higher incidence of hypertension and proteinuria in arm I; however, with higher incidence of grade III–IV neutropenia and neutropenic fever in arm II. No treatment-related mortality was recorded.
Conclusion: Bevacizumab/carboplatin/paclitaxel and carboplatin/docetaxel show comparable PFS and OS with different toxicity profiles.

Keywords: taxanes, breast cancer, bevacizumab, Her-2 negative

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