Real world experience of palbociclib in hormone receptor-positive metastatic breast cancer.
2017
e18094Background: Palbociclib has been approved as a first line therapy in hormone-receptor positive (HR+) and HER-2 negative metastatic breast cancer(MBC) manifesting significant improvement in progression free survival (PFS). We studied this drug in a community setting. The endpoints were estimated PFS, objective response, toxicities and patient outcomes. Methods: This was a single-center, retrospective study of HR+MBC patients receiving palbociclib after its FDA approval. 22 patients were selected Results: A total of 22 patients were included (Male = 2, Female = 20). Median age was 60-years (range, 49-84). About 90% patients had received at least one previous therapy and the median number was 1.5. 13% patients were on fulvestrant, 86% on letrozole and 4.5% on exemestane. About 64% of patients had ECOG status of ≥ 1. Median duration of palbociclib treatment was 5-months, therefore, an estimated PFS at 18-months was 50%. 4.5% patients attained complete response. 22% patients achieved partial response, 22...
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