Journal
CLINICAL BREAST CANCER
Volume 13, Issue 2, Pages 81-87Publisher
CIG MEDIA GROUP, LP
DOI: 10.1016/j.clbc.2012.11.008
Keywords
HER2-positive; Metastatic breast cancer; Second-line
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Background: In HER2+ MBC, continuing trastuzumab (T) after the progression during a first-line T-based regimen, represents 1 of the possible strategies, even if few data from randomized trials exist in this setting. Materials and Methods: The authors have performed a systematic review through PubMed, including all prospective and retrospective publications exploring the efficacy of a T-based second-line therapy in HER2+ MBC patients treated beyond progression with a first-line T-containing treatment. Pooled estimates of the RR, TIP, and OS were calculated. Results: A total of 29 studies (4 randomized controlled phase III trials, 2 observational studies, 8 prospective nonrandomized trials, and 15 retrospective case series) were retrieved for a total of 2618 patients. All were treated with a second-line, T-based treatment beyond progression with a first-line T-based chemotherapy. Overall, the median RR, UP, and OS obtained from the selected articles were 28.7%, 7, and 24 months. Conclusions: This pooled analysis confirms that continuing T beyond the first progression continues to be 1 of the effective and preferred choices in HER2+ MBC, failing a (T-based) first-line regimen. Clinical Breast Cancer, Vol. 13, No. 2, 81-7 (C) 2013 Elsevier Inc. All rights reserved.
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