PURPOSE: To evaluate the safety and maximum-tolerated dose (MTD) of weekly patupilone, a natural epothilone B, in patients with advanced solid tumors. PATIENTS AND METHODS: Patients were treated with patupilone (0.3 to 3.6 mg/m2) for 6 weeks on/3 weeks off or 3 weeks on/1 week off. Dose-limiting toxicities (DLTs), MTD, and pharmacokinetics were determined for each schedule of administration. RESULTS: Ninety-one patients were enrolled. The most common tumor types included ovarian, breast, and colon cancers. Doses of patupilone less than 2.5 mg/m2 using either the 6 weeks on/3 weeks off or the 3 weeks on/1 week off schedule were tolerated well. At higher doses, DLTs were observed using both dosing schedules, with diarrhea the most common DLT. The MTD for both treatment schedules was 2.5 mg/m2. After a short infusion, patupilone blood concentrations declined in a multiphasic manner with a terminal half-life of 4 days. Drug clearance was nonrenal and was not related to body-surface area. Over the dose range evaluated, systemic drug exposure was approximately dose proportional. Three patients achieved a partial response, and 31 patients had stable disease. Two patients experiencing a partial response had received prior taxane therapy. CONCLUSION: Patupilone is well tolerated when administered at a dose of 2.5 mg/m2, using either a 6 weeks on/3 weeks off or a 3 weeks on/1 week off schedule. In contrast with murine studies, patupilone has a relatively prolonged terminal half-life in humans. The partial responses in patients previously treated with taxanes is consistent with promising preclinical results.
PURPOSE: To evaluate the safety and maximum-tolerated dose (MTD) of weekly patupilone, a natural epothilone B, in patients with advanced solid tumors. PATIENTS AND METHODS: Patients were treated with patupilone (0.3 to 3.6 mg/m2) for 6 weeks on/3 weeks off or 3 weeks on/1 week off. Dose-limiting toxicities (DLTs), MTD, and pharmacokinetics were determined for each schedule of administration. RESULTS: Ninety-one patients were enrolled. The most common tumor types included ovarian, breast, and colon cancers. Doses of patupilone less than 2.5 mg/m2 using either the 6 weeks on/3 weeks off or the 3 weeks on/1 week off schedule were tolerated well. At higher doses, DLTs were observed using both dosing schedules, with diarrhea the most common DLT. The MTD for both treatment schedules was 2.5 mg/m2. After a short infusion, patupilone blood concentrations declined in a multiphasic manner with a terminal half-life of 4 days. Drug clearance was nonrenal and was not related to body-surface area. Over the dose range evaluated, systemic drug exposure was approximately dose proportional. Three patients achieved a partial response, and 31 patients had stable disease. Two patients experiencing a partial response had received prior taxane therapy. CONCLUSION:Patupilone is well tolerated when administered at a dose of 2.5 mg/m2, using either a 6 weeks on/3 weeks off or a 3 weeks on/1 week off schedule. In contrast with murine studies, patupilone has a relatively prolonged terminal half-life in humans. The partial responses in patients previously treated with taxanes is consistent with promising preclinical results.
Authors: Catherine T Anthony; Juan G Bastidas; Jessica L Thomson; John Lyons; James M Lewis; Joshua E Schwimer; Peter Casey; Jennifer Abadie; Daniel J Frey; Yi-Zarn Wang; J Philip Boudreaux; Eugene A Woltering Journal: J Gastrointest Cancer Date: 2012-06
Authors: Dana M Roque; Stefania Bellone; Diana P English; Natalia Buza; Emiliano Cocco; Sara Gasparrini; Ileana Bortolomai; Elena Ratner; Dan-Arin Silasi; Masoud Azodi; Thomas J Rutherford; Peter E Schwartz; Alessandro D Santin Journal: Cancer Date: 2013-04-12 Impact factor: 6.860
Authors: Kevin R Kelly; Markus Zollinger; Frédéric Lozac'h; Eugene Tan; Alain Mita; Felix Waldmeier; Patrick Urban; Suraj Anand; Yanfeng Wang; Piet Swart; Chris Takimoto; Monica Mita Journal: Invest New Drugs Date: 2012-07-18 Impact factor: 3.850
Authors: D Arnold; W Voigt; P Kiewe; C Behrmann; S Lindemann; S Reif; H Wiesinger; M Giurescu; E Thiel; H-J Schmoll Journal: Br J Cancer Date: 2009-09-22 Impact factor: 7.640