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Volasertib Versus Chemotherapy in Platinum-Resistant or -Refractory Ovarian Cancer: A Randomized Phase II Groupe des Investigateurs Nationaux pour l'Etude des Cancers de l'Ovaire Study
Ctr Cancs Femme & Rech Clin, Paris, France..
Hop Univ Est Parisien Site Tenon, Paris, France.;Alliance Rech Cancerol, Paris, France..
Ctr Alexis Vautrin, Vandoeuvre Les Nancy, France..
Ctr Leon Berard, F-69373 Lyon, France.;Univ Lyon 1, F-69365 Lyon, France..
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2016 (English)In: Journal of Clinical Oncology, ISSN 0732-183X, E-ISSN 1527-7755, Vol. 34, no 7, 706-+ p.Article in journal (Refereed) Published
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Abstract [en]

Purpose Volasertib is a potent and selective cell-cycle kinase inhibitor that induces mitotic arrest and apoptosis by targeting Polo-like kinase. This phase II trial evaluated volasertib or single-agent chemotherapy in patients with platinum-resistant or -refractory ovarian cancer who experienced failure after treatment with two or three therapy lines. Patients and Methods Patients were randomly assigned to receive either volasertib 300 mg by intravenous infusion every 3 weeks or an investigator's choice of single-agent, nonplatinum, cytotoxic chemotherapy. The primary end point was 24-week disease control rate. Secondary end points included best overall response, progression-free survival (PFS), safety, quality of life, and exploratory biomarker analyses. Results Of the 109 patients receiving treatment, 54 received volasertib and 55 received chemotherapy; demographics were well balanced. The 24-week disease control rates for volasertib and chemotherapy were 30.6% (95% CI, 18.0% to 43.2%) and 43.1% (95% CI, 29.6% to 56.7%), respectively, with partial responses in seven (13.0%) and eight (14.5%) patients, respectively. Median PFS was 13.1 weeks and 20.6 weeks for volasertib and chemotherapy (hazard ratio, 1.01; 95% CI, 0.66 to 1.53). Six patients (11%) receiving volasertib achieved PFS fore more than 1 year, whereas no patient receiving chemotherapy achieved PFS greater than 1 year. No relationship between the expression of the biomarkers tested and their response was determined. Patients treated with volasertib experienced more grade 3 and 4 drug-related hematologic adverse events (AEs) and fewer nonhematologic AEs than did patients receiving chemotherapy. Discontinuation resulting from AEs occurred in seven (13.0%) and 15 (27.3%) patients in the volasertib and chemotherapy arms, respectively. Both arms showed similar effects on quality of life. Conclusion Single-agent volasertib showed antitumor activity in patients with ovarian cancer. AEs in patients receiving volasertib were mainly hematologic and manageable.

Place, publisher, year, edition, pages
2016. Vol. 34, no 7, 706-+ p.
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Cancer and Oncology
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URN: urn:nbn:se:uu:diva-297137DOI: 10.1200/JCO.2015.62.1474ISI: 000374333400016PubMedID: 26755507OAI: oai:DiVA.org:uu-297137DiVA: diva2:940901
Available from: 2016-06-21 Created: 2016-06-21 Last updated: 2016-06-21Bibliographically approved

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