• Ian D Davis, Lynette Kiers, Lachlan MacGregor, Michael Quinn, Joseph Arezzo, Michael Green, Mark Rosenthal, Michael Chia, Michael Michael, Peter Bartley, Leonie Harrison, and Michael Daly.
• Austin Health, Studley Road, Heidelberg, Victoria 3084, Australia. Ian.Davis@ludwig.edu.au
• Clin Cancer Res. 2005 Mar 1;11(5):1890-8.

PurposeTo determine whether recombinant human leukemia inhibitory factor (rhuLIF, AM424, emfilermin) can prevent or ameliorate the development of chemotherapy-induced peripheral neuropathy (CIPN) after treatment with carboplatin (AUC 6) and paclitaxel (175 mg/m(2) over 3 hours).Experimental DesignRandomized double-blind placebo-controlled phase II clinical trial. Eligible patients had solid tumors for which treatment with carboplatin/paclitaxel was appropriate. The primary end point was a standardized composite peripheral nerve electrophysiology (CPNE) score, based on nerve velocities and amplitudes, measured at baseline and after four cycles of chemotherapy. Secondary efficacy end points included CPNE score at last cycle and at exit evaluation, vibration perception threshold, H-reflex latency, symptom scores, and quantitative assessment of neurologic signs. Study drug was given s.c. daily for 7 days starting the day before chemotherapy. Patients were randomized to receive low-dose rhuLIF (2 microg/kg), high-dose rhuLIF (4 microg/kg), or placebo.ResultsPatients (n = 117) were randomized across seven neurology test centers. Thirty-six patients received low dose rhuLIF (2 microg/kg), 39 received high dose rhuLIF (4 microg/kg) and 42 received placebo. rhuLIF was well tolerated with 95% compliance and no adverse effects on quality of life. No differences between groups in CPNE or any of the individual neurologic testing variables were observed between baseline and cycle 4 or by the secondary efficacy variables.ConclusionsrhuLIF is not effective in preventing CIPN caused by carboplatin and paclitaxel. CPNE is a reliable and valid tool that was sensitive to the onset and progression of CIPN.

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