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Ranade A.A.,Deenanath Mangeshkar Hospital and Research Center | Bapsy P.P.,Kidwai Memorial Institute of Oncology | Nag S.,Hirabai Cowasji Jehangir Medical Research Institute | Raghunadharao D.,Nizams Institute of Medical Sciences | And 11 more authors.
Asia-Pacific Journal of Clinical Oncology | Year: 2013

Aims: Paclitaxel is extensively used in the treatment of advanced carcinomas of the breast, ovary and non-small cell lung cancer. In clinical use it is formulated in the non-ionic surfactant polyethoxylated castor oil (Cremophor) and dehydrated alcohol to enhance drug solubility. Cremophor adds to toxic effects of paclitaxel by producing or contributing to the well-described hypersensitivity reactions that commonly occur during its infusion, affecting a large number of patients. This randomized trial was conducted to evaluate efficacy and safety of novel nanoparticle-based paclitaxel in the treatment of patients with advanced breast cancer. Method: Patients were randomized to receive either nanoparticle paclitaxel (NP) 300mg/m2, (NP300) or NP220mg/m2 or Cremophor paclitaxel 175mg/m2 (CP 175). NP was administered as a 1-h infusion without premedication and CP as a 3-h infusion with premedication every 3 weeks. Results: In total, 194 patients who had been administered at least one dose were included for safety analysis and 170 patients who completed at least two cycles of therapy were analyzed for efficacy. NP showed an overall response rate (complete response + partial response) of 40% in the NP220 and NP300 arms as compared to 31% in the CP arm. The incidence of neutropenia (all grades) was lowest in the NP220 arm (39.4%) compared to the NP300 (55%) and CP arm (50%). Conclusion: NP is well tolerated and can be safely administered without any premedication in comparison to conventional paclitaxel, which requires the use of premedication before administration. NP demonstrates promising efficacy with a favorable safety profile. © 2012 Wiley Publishing Asia Pty Ltd.

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