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Is it safe to add cediranib to weekly paclitaxel chemotherapy in women with ovarian cancer who are at risk of developing malignant bowel obstruction?

ABSTRACT: See https://www.cancerresearchuk.org/about-cancer/find-a-clinical-trial/a-trial-of-cediranib-for-women-with-ovarian-cancer-at-risk-of-having-a-bowel-obstruction-ceboc

DISEASE(S): Progressive,Platinum-resistant Ovarian Cancer,Platinum-resistant Or Refractory,High-grade Ovarian,Ovarian Cancer Recurrent,Neoplasms Benign, Malignant And Unspecified (incl Cysts And Polyps),Fallopian Tube Or Primary Peritoneal Cancer With High Risk Of Bowel Obstruction.

PROVIDER: 2416782 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:BackgroundA dose-dense weekly schedule of paclitaxel (resulting in a greater frequency of drug delivery) plus carboplatin every 3 weeks or the addition of bevacizumab to paclitaxel and carboplatin administered every 3 weeks has shown efficacy in ovarian cancer. We proposed to determine whether dose-dense weekly paclitaxel and carboplatin would prolong progression-free survival as compared with paclitaxel and carboplatin administered every 3 weeks among patients receiving and those not receiving bevacizumab.MethodsWe prospectively stratified patients according to whether they elected to receive bevacizumab and then randomly assigned them to receive either paclitaxel, administered intravenously at a dose of 175 mg per square meter of body-surface area every 3 weeks, plus carboplatin (dose equivalent to an area under the curve [AUC] of 6) for six cycles or paclitaxel, administered weekly at a dose of 80 mg per square meter, plus carboplatin (AUC, 6) for six cycles. The primary end point was progression-free survival.ResultsA total of 692 patients were enrolled, 84% of whom opted to receive bevacizumab. In the intention-to-treat analysis, weekly paclitaxel was not associated with longer progression-free survival than paclitaxel administered every 3 weeks (14.7 months and 14.0 months, respectively; hazard ratio for disease progression or death, 0.89; 95% confidence interval [CI], 0.74 to 1.06; P=0.18). Among patients who did not receive bevacizumab, weekly paclitaxel was associated with progression-free survival that was 3.9 months longer than that observed with paclitaxel administered every 3 weeks (14.2 vs. 10.3 months; hazard ratio, 0.62; 95% CI, 0.40 to 0.95; P=0.03). However, among patients who received bevacizumab, weekly paclitaxel did not significantly prolong progression-free survival, as compared with paclitaxel administered every 3 weeks (14.9 months and 14.7 months, respectively; hazard ratio, 0.99; 95% CI, 0.83 to 1.20; P=0.60). A test for interaction that assessed homogeneity of the treatment effect showed a significant difference between treatment with bevacizumab and without bevacizumab (P=0.047). Patients who received weekly paclitaxel had a higher rate of grade 3 or 4 anemia than did those who received paclitaxel every 3 weeks (36% vs. 16%), as well as a higher rate of grade 2 to 4 sensory neuropathy (26% vs. 18%); however, they had a lower rate of grade 3 or 4 neutropenia (72% vs. 83%).ConclusionsOverall, weekly paclitaxel, as compared with paclitaxel administered every 3 weeks, did not prolong progression-free survival among patients with ovarian cancer. (Funded by the National Cancer Institute and Genentech; GOG-0262 ClinicalTrials.gov number, NCT01167712.).

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Is it safe to add cediranib to weekly paclitaxel chemotherapy in women with ovarian cancer who are at risk of developing malignant bowel obstruction?

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