Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Anti-tumor Activity of Paclitaxel Prodrug Conjugated with Polyethylene Glycol

  • Published : 2005.07.20
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Abstract

The purpose of this study was to develop a method for increasing the solubility of paclitaxel in water to reduce its toxicity and make the drug more feasible for chemotherapy. A series of highly water soluble paclitaxel polyethylene glycol (PEG) esters were synthesized and evaluated for their anti-tumor activity and toxicity. The solubility of 7-polyethylene glycol paclitaxel carbonate 5 was 840 mg/mL and the acute toxicity ($LD_{50}$) was 286 mg/kg. Because of its reduced toxicity, compound 5 showed a dramatic reduction of tumor volume without any loss of animals in long-term treatment (daily consecutive injections for 15 days).

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