Phase II clinical trial of ixabepilone in patients with recurrent or persistent platinum- and taxane-resistant ovarian or primary peritoneal cancer: a gynecologic oncology group study

UMMS Affiliation

Department of Obstetrics and Gynecology

Publication Date


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Adult; Aged; Aged, 80 and over; Bridged Compounds; Drug Resistance, Neoplasm; Epothilones; Female; Humans; Middle Aged; Neoplasm Recurrence, Local; Organoplatinum Compounds; Ovarian Neoplasms; Peritoneal Neoplasms; Taxoids; Tubulin Modulators


Female Urogenital Diseases and Pregnancy Complications | Maternal and Child Health | Neoplasms | Obstetrics and Gynecology | Women's Health


PURPOSE: Ixabepilone (BMS-247550) is a microtubule-stabilizing epothilone B analog with activity in taxane-resistant metastatic breast cancer. The Gynecologic Oncology Group conducted a phase II evaluation of the efficacy and safety of ixabepilone in patients with recurrent or persistent platinum- and taxane-resistant primary ovarian or peritoneal carcinoma.

PATIENTS AND METHODS: Patients with measurable platinum- and taxane-resistant ovarian or peritoneal carcinoma, defined as progression during or within 6 months of one prior course of treatment with each agent, received intravenous ixabepilone 20 mg/m(2) administered over 1 hour on days 1, 8, and 15 of a 28-day cycle. Results Of 51 patients entered, 49 were eligible. The objective response rate was 14.3% (95% CI, 5.9% to 27.2%), with three complete and four partial responses. Twenty patients (40.8%) had stable disease, whereas sixteen (32.7%) had increasing disease. The median time to progression was 4.4 months (95% CI, 0.8 to 32.6+ months); median survival was 14.8 months (95% CI, 0.8 to 50.0) months. Patients received a median of two treatment cycles (range, 1 to 29 cycles), and 18.4% of patients received > or = six cycles. Adverse effects included peripheral grade 2 (28.5%) and grade 3 (6.1%) neuropathy, grades 3 to 4 neutropenia (20.4%), grade 3 fatigue (14.3%), grade 3 nausea/emesis (22%), grade 3 diarrhea (10%), and grade 3 mucositis (4%).

CONCLUSION: Ixabepilone 20 mg/m(2) over 1 hour on days 1, 8, and 15 of a 28-day cycle demonstrates antitumor activity and acceptable safety in patients with platinum- and taxane-resistant recurrent or persistent ovarian or primary peritoneal carcinoma.

DOI of Published Version



J Clin Oncol. 2010 Jan 1;28(1):149-53. doi: 10.1200/JCO.2009.24.1455. Epub 2009 Nov 16. Link to article on publisher's site

Journal/Book/Conference Title

Journal of clinical oncology : official journal of the American Society of Clinical Oncology

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