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Modified Intraperitoneal Chemotherapy Without Bevacizumab as a First-Line Therapy for Newly Diagnosed Advanced
Yuanming Shen1, Sangsang Tang1, Junfen Xu2
1School of Medicine, Women's Hospital, Zhejiang University, Hangzhou, China.
Objectives:
To evaluate whether the modified intraperitoneal plus intravenous chemotherapy regimen as a first-line therapy for advanced epithelial ovarian cancer (EOC) in China can be well-tolerated or confer any potential benefit on survival.
Methods:
We evaluated the outcomes of women with newly diagnosed advanced-stage III-IV EOC treated with optimal cytoreductive surgery (<1 cm) and subsequent intraperitoneal plus intravenous chemotherapy or intravenous chemotherapy from January 2005 to December 2017 at two Gynecologic Oncology Centers in China. Kaplan-Meier survival analysis and Cox regression multivariate analysis models were performed to determine the toxicities and survival outcomes.
Results:
A total of 463 patients with stage III-IV EOC were enrolled. According to the propensity scores (1:2), 85 patients who received intraperitoneal plus intravenous chemotherapy (group A) were matched to 170 patients who received intravenous chemotherapy (group B). The median follow-up time was 41 months (range 6-155 months). However, there was no statistically significant difference in the median progression-free survival (PFS) (20 vs. 22 months, P = 0.351) or 3-year overall survival (OS) rate (80 vs. 78%, P = 0.749) between the two groups. R0 primary cytoreductive surgery was the only factor related to PFS (P = 0.028) and OS (P = 0.005) by Cox regression analysis. The incidence of grade 3/4 adverse events did not significantly differ between the two groups.
Conclusion:
The efficacy of intraperitoneal chemotherapy mainly comes from the intraperitoneal drug dose intensity and cumulative dose. High-efficiency and low-toxicity intraperitoneal chemotherapy regimens still need to be found and validated.
