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Does Neoadjuvant Bevacizumab Increase Surgical Complications in Breast Surgery?

Author(s): Golshan M, Garber JE, Gelman R, Tung N, Smith BL, Troyan S, Greenberg CC, Winer EP, Ryan P

Affiliation(s): Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA, mgolshan@partners.org.

Publication date & source: 2010-09-30, Ann Surg Oncol., [Epub ahead of print]

BACKGROUND: Neoadjuvant chemotherapy is being increasingly used in operable breast cancer. There are limited data on the safety of bevacizumab (bev) in the neoadjuvant setting. We sought to explore the safety of neoadjuvant cisplatin/bev in a protocol for triple negative breast cancer (TNBC). MATERIALS AND METHODS: A total of 51 patients with confirmed TNBC were enrolled in a single-arm trial of neoadjuvant cisplatin plus bev. Of the 51 patients, 28 with confirmed TNBC were enrolled in our trial of single-agent neoadjuvant cisplatin. Two-sided Fisher exact test were used for comparing the 2 trials. RESULTS: The 51 patients received neoadjuvant protocol therapy with cisplatin/bev and underwent definitive local therapy. Breast conserving therapy (BCT) was performed in 29 (57%) and mastectomy with or without reconstruction in 22 (43%). Postoperative complications were reported in 22 patients (43%); 4 (8%) required explanation of expanders. Also, 28 patients completed neoadjuvant cisplatin therapy. BCT was performed in 13 (46%) and mastectomy with or without reconstruction in 15 (54%). Postoperative complications were reported in 11 patients (39%). None of the 5 reconstructions were lost. We compared all toxicities between the two trials (P = .81 NS), and wound healing related complications between the two trials (P = .10 NS). CONCLUSIONS: Cisplatin/bevacizumab and cisplatin alone neoadjuvant therapy resulted in a significant number of postoperative complications. Specifically, use of expanders/implants may be problematic for patients treated with bev. However, this was a single-arm trial; randomized controlled studies will be needed to determine the optimal use of bevacizumab in the timing of breast cancer surgery.

Page last updated: 2010-10-05

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