Liposome Entrapped Paclitaxel Easy to Use (LEP-ETU) in Patients With Advanced Cancer

LEP-ETU is a new formulation of the anti-cancer agent paclitaxel for injection or Taxol (paclitaxel and Cremophor EL). Paclitaxel is a drug currently used for treating a broad range of cancers. Paclitaxel is thought to prevent cells from dividing and growing, resulting in cell death. This new formulation consists of paclitaxel associated with liposomes, which are microscopic membrane-like structures created from lipids (fats). It is believed that LEP-ETU will maintain or enhance the anti-tumor properties of paclitaxel, while offering advantages to the patient of a shorter infusion time, routine premedication not required, fewer side effects at similar doses, and possibly greater effectiveness, especially if higher doses can be delivered without an increase in side effects. This study is designed to determine the following: * The highest dose of LEP-ETU that can be given safely to patients. * The pharmacokinetics of paclitaxel following intravenous infusion with LEP-ETU. * Any anti-tumor effects of LEP-ETU. Up to 8 dose levels will be studied. LEP-ETU will be given to patients by intravenous infusion over 90 minutes, once every 21 days, until their disease progresses or side effects occur requiring the treatments to end. Patients will be evaluated for safety and how well they tolerate the treatments.