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Pecot CV, Bischoff FZ, Lin YG, Jaladurgam P, Merritt WM, Pircher TJ, Mikolajczyk S, Mayer JA, Wong K, Pham T, Bottsford-Miller JN, Stone RL, Celestino J, Nick AM, Eng C, Sood A. Clinical relevance of cytokeratin-negative circulating tumor cells. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e21101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Bottsford-Miller JN, Shafer A, Deal A, Filip L, Fowler W. Hematologic toxicities before and during bevacizumab chemotherapy in women with gynecologic malignancy. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e16565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e16565 Background: Many women undergoing chemotherapy for gynecologic malignancy experience hematologic toxicity that delays therapy or requires supportive intervention. In animal models anti-VEGF antibodies increase erythropoietin levels. We examined the hematologic toxicities experienced by patients prior to (PR) and during bevacizumab (BR) treatment. Methods: Retrospective, single-institution study of women with gynecologic malignancy treated at the University of North Carolina with bevacizumab as part of their therapy from January 2005 to June 2007. Data collected included prior therapies, blood product and growth factor use, and interruptions in therapy. Comparisons were made between individual patients’ hematologic parameters during the PR and BR. Median differences between hematologic nadirs were compared using Wilcoxon Signed Rank Tests. Differences in proportions were compared by Chi-Square or Fisher's Exact tests. Results: 43 patients ware identified, 40 with complete data. Most women were Caucasian (88%) and had ovarian or primary peritoneal carcinoma (77%); median (range) age was 53 (23–73). 32 (74%) received three or more different chemotherapy drugs before starting bevacizumab. The median difference in HCT nadir (31.2 vs. 33, p = 0.01) and ANC nadir (1.2 vs. 1.4, p = 0.04) during the PR and BR were significant in favor of the bevacizumab regimens. The median nadir differences for WBC (2.7 vs. 3.1, p = 0.1) and PLT (129 vs. 150, p = 0.07) were non-significant favoring BR. For HCT toxicity grades, 22 (55%) had the same grade during their PR and BR, 15 (38%) had a lower grade during BR, and 3 (7%) had a higher grade during BR (p = 0.001). Similar trends were seen for WBC (p = 0.27), ANC (p = 0.1), and PLT (p = 0.15). During BR there was a trend toward fewer patients receiving darbepoetin (66% vs. 44%, p = 0.07) and filgastrim (29% vs. 14%, p = 0.1). Conclusions: Patients receiving bevacizumab had no worse hematologic toxicity compared to their prior regimens and may have had less severe anemia. While not statistically significant, there were trends toward less growth factor use with bevacizumab. Patients who have had prior hematologic toxicity should be considered for bevacizumab. The effect of bevacizumab on hematologic toxicity should be evaluated with prospective data. No significant financial relationships to disclose.
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Affiliation(s)
- J. N. Bottsford-Miller
- University of North Carolina at Chapel Hill, Chapel Hill, NC; Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - A. Shafer
- University of North Carolina at Chapel Hill, Chapel Hill, NC; Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - A. Deal
- University of North Carolina at Chapel Hill, Chapel Hill, NC; Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - L. Filip
- University of North Carolina at Chapel Hill, Chapel Hill, NC; Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - W. Fowler
- University of North Carolina at Chapel Hill, Chapel Hill, NC; Lineberger Comprehensive Cancer Center, Chapel Hill, NC
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