Long-term results of a randomised phase III trial of weekly versus three-weekly paclitaxel/platinum induction therapy followed by standard or extended three-weekly paclitaxel/platinum in European patients with advanced epithelial ovarian cancer

MEL Burg, Wendy Onstenk, Ingrid Boere, M Look, PB Ottevanger, D de Gooyer, LGM (Leon) Kerkhofs, FAA Valster, JB Ruit, AGPM van Reisen, SH (Swan Hoo) Goey, AME van der Torren, DT Huinink, TC Kok, Jaap Verweij, Lena van Doorn

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Abstract

Background: Weekly paclitaxel/carboplatin might improve survival in platinum-resistant epithelial ovarian cancer (EOC). We compared efficacy of first-line weekly to three-weekly paclitaxel/cis- or carboplatin (PCw and PC3w) induction therapy, followed by either three or six PC3w cycles. Patients and methods: In this multicentre, randomised phase III trial with 2x2 design, patients with FIGO stage IIb-IV EOC were randomised to six cycles PCw (paclitaxel 90 mg/m(2), cisplatin 70 mg/m(2) or carboplatin AUC 4) or three cycles PC3w (paclitaxel 175 mg/m(2), cisplatin 75 mg/m(2) or carboplatin AUC 6), followed by either three or six cycles PC3w. Primary endpoints were progression free survival (PFS) and overall survival (OS). Secondary endpoints were response rate (RR) and toxicity. Results: Of 267 eligible patients, 133 received PCw and 134 PC3w. The first 105 patients received cisplatin, after protocol amendment the subsequent 162 patients received carboplatin. Weekly cisplatin was less well tolerated than weekly carboplatin. All PC3w cycles were well tolerated. At the end of all treatments, RR was 90.8% with no differences between the treatment arms. After a follow-up of median 10.3 years (range 7.1-14.8), median PFS was 18.5 (95% confidence interval (CI) 15.9-21.0) months for PCw and 16.4 (95% CI 13.5-19.2) months for PC3w (p = 0.78). Median OS was 44.8 (95% CI 33.1-56.5) months for PCw and 41.1 (95% CI 34.4-47.7) months for PC3w (p = 0.98). Conclusions: There was no benefit in terms of OS, PFS or RR for a weekly regimen nor for extended chemotherapy as first-line treatment for EOC in European patients. (C) 2014 Elsevier Ltd. All rights reserved.
Original languageUndefined/Unknown
Pages (from-to)2592-2601
Number of pages10
JournalEuropean Journal of Cancer
Volume50
Issue number15
DOIs
Publication statusPublished - 2014

Research programs

  • EMC MM-03-52-02-A
  • EMC MM-03-86-01
  • EMC MM-03-86-08

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