International journal of gynecological cancer : official journal of the International Gynecological Cancer Society · 2016
Activity of Bevacizumab in Patients With Low-Grade Serous Ovarian Carcinoma.
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Rose Peter G, Mahdi Haider, Jernigan Amelia, Yang Bin
Аннотация
OBJECTIVES: The aim of this study was to evaluate the antitumor activity of bevacizumab in low-grade serous ovarian carcinoma (LGSOC).
METHODS: We retrospectively identified patients with LGSOC treated with bevacizumab.
RESULTS: Twelve patients with LGSOC who received bevacizumab were identified. Eleven patients received bevacizumab alone. Only 1 (8.3%) of 12 patients had evidence of a partial response. Ten (90.9%) of the 11 patients were progression free at 6 months. All but 1 patient who received only 2 courses before treatment interruption had a progression-free survival (PFS) of greater than 6 months. The median PFS was 48 months (range, 5-123+ months). Three of the patients reported in this series had extended disease stabilization that lasted for 123+, 48, and 15+ months after progression-free intervals on prior chemotherapy regimens of 2.5, 4, and 7 months, respectively. The median overall survival was not reached at a median follow-up of 32 months, with only 1 of the 12 patients dying of disease.
CONCLUSIONS: In our series, in patients with LGSOC treated primarily with bevacizumab, primarily as a single agent, a low response rate but very long PFS is observed. In addition, patients have had secondary PFS durations that exceeded their prior PFS, which is a sign of anticancer activity.
METHODS: We retrospectively identified patients with LGSOC treated with bevacizumab.
RESULTS: Twelve patients with LGSOC who received bevacizumab were identified. Eleven patients received bevacizumab alone. Only 1 (8.3%) of 12 patients had evidence of a partial response. Ten (90.9%) of the 11 patients were progression free at 6 months. All but 1 patient who received only 2 courses before treatment interruption had a progression-free survival (PFS) of greater than 6 months. The median PFS was 48 months (range, 5-123+ months). Three of the patients reported in this series had extended disease stabilization that lasted for 123+, 48, and 15+ months after progression-free intervals on prior chemotherapy regimens of 2.5, 4, and 7 months, respectively. The median overall survival was not reached at a median follow-up of 32 months, with only 1 of the 12 patients dying of disease.
CONCLUSIONS: In our series, in patients with LGSOC treated primarily with bevacizumab, primarily as a single agent, a low response rate but very long PFS is observed. In addition, patients have had secondary PFS durations that exceeded their prior PFS, which is a sign of anticancer activity.