Summary
Purpose Hepatobiliary cancers respond poorly to cytotoxic chemotherapy. We evaluated the activity and safety of ixabepilone, an epothilone B analogue which stabilizes microtubules, in a phase II trial in patients with advanced cancers of the gallbladder, bile duct, and liver. Methods Eligible patients had previously-untreated, histologically-proven unresectable hepatobiliary cancer. Ixabepilone, 40 mg/m2, was administered intravenously over 3 h every 21 days. Results Between January 2002 and April 2005, 54 patients (19 hepatocelluar carcinoma, 13 cholangiocarcinomas, 22 gallbladder carcinomas) were enrolled; 47 patients were evaluable for efficacy. The objective response rate was 8.5%; 51% had stable disease. Median overall survival was 7.0 months (95% CI, 5.0 to 10.8 months) and median progression-free survival was 2.6 months (95% CI, 1.4 to 4.1 months). Grade 3/4 toxicities included neutropenia (39%), fatigue (9%), allergic/hypersensitivity reaction (4%) and sensory neuropathy (4%). Conclusion Single agent ixabepilone has limited activity in advanced hepatobiliary cancers.
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Nimeiri, H.S., Singh, D.A., Kasza, K. et al. The epothilone B analogue ixabepilone in patients with advanced hepatobiliary cancers: a trial of the University of Chicago Phase II Consortium. Invest New Drugs 28, 854–858 (2010). https://doi.org/10.1007/s10637-009-9297-6
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DOI: https://doi.org/10.1007/s10637-009-9297-6