As compared with intravenous paclitaxel plus cisplatin, intravenous paclitaxel plus intraperitoneal cisplatin and paclitaxel improves survival in patients with optimally debulked stage III ovarian cancer.
Endometrial cancer is the most common cancer in women with Lynch syndrome. The identification of individuals with Lynch syndrome is desirable because they can benefit from increased cancer surveillance. The purpose of this study was to determine the feasibility and desirability of molecular screening for Lynch syndrome in all endometrial cancer patients. Unselected endometrial cancer patients (N = 543) were studied. All tumors underwent microsatellite instability (MSI) testing. Patients with MSI-positive tumors underwent testing for germ line mutations in MLH1, MSH2, MSH6, and PMS2. Of 543 tumors studied, 118 (21.7%) were MSI positive (98 of 118 MSI high and 20 of 118 MSI low). All 118 patients with MSI-positive tumors had mutation testing, and nine of them had deleterious germ line mutations (one MLH1, three MSH2, and five MSH6). In addition, one case with an MSI-negative tumor had abnormal MSH6 immunohistochemical staining and was subsequently found to have a mutation in MSH6. Immunohistochemical staining was consistent with the mutation result in all seven truncating mutation-positive cases but was not consistent in two of the three missense mutation cases. We conclude that in central Ohio, at least 1.8% (95% confidence interval, 0.9-3.5%) of newly diagnosed endometrial cancer patients had Lynch syndrome. Seven of the 10 Lynch syndrome patients did not meet any published criteria for hereditary nonpolyposis colorectal cancer, and six of them were diagnosed at age >50. Studying all endometrial cancer patients for Lynch syndrome using a combination of MSI and immunohistochemistry for molecular prescreening followed by gene sequencing and deletion analysis is feasible and may be desirable. (Cancer Res 2006; 66(15): 7810-7)
Background
On August 14, 2014, the United States Food and Drug Administration approved the anti-angiogenesis drug, bevacizumab, for women with advanced cervical cancer based on a 2012 interim analysis of 271 deaths on GOG protocol 240. We now report the planned protocol-specified final analysis of the primary objective, overall survival (OS).
Methods
A phase III randomized trial using a 2×2 factorial design was conducted to determine whether intravenous chemotherapy [(cisplatin 50 mg/m2 plus paclitaxel 135 or 175 mg/m2) or (topotecan 0.75 mg/m2 days 1–3 plus paclitaxel 175 mg/m2)] with or without bevacizumab (15 mg/kg) improves OS in recurrent/persistent/metastatic cervical cancer. Patients were prospectively stratified by performance status, prior radiosensitizing platinum, and disease status. We estimated enrolling 450 patients with 346 deaths at final analysis to provide 90% power to detect a 30% reduction in risk of death.
Findings
On March 7, 2014, 348 deaths occurred among 452 patients. Regimens administering bevacizumab continued to demonstrate significant improvement in OS: 16.8 vs 13.3 mos (HR 0.77;95% CI 0.62–0.95;p=0.0068). Updated progression-free survival also favored bevacizumab (HR 0.68;95% CI 0.56–0.84;p=0.0002). Final OS among 20% (n=91) not treated with prior pelvic radiotherapy was 24.5 (bevacizumab) vs 16.8 mos (without bevacizumab). Fistula (any grade) occurred in 14.5% (n=32) receiving bevacizumab (all previously irradiated). Grade 3+ fistula developed in 5.9% (n=13) and did not result in surgical emergency, sepsis and/or death. Post-progression OS was not significantly different among those who did and did not receive bevacizumab (median 8.4 vs 7.1 mos: HR 0.32;95% CI 0.66–1.05;p=0.06).
Interpretation
The benefit conferred by incorporation of bevacizumab is sustained with extended follow-up as evidenced by the survival curves remaining separated. Following progression on bevacizumab, a negative rebound effect was not observed. This represents proof-of-concept of the efficacy and tolerability of anti-angiogenesis therapy in advanced cervical cancer.
Funding
National Cancer Institute (USA).
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