Carboplatin and granulocyte colony-stimulating factor as first-line treatment for epithelial ovarian cancer: a phase...

A phase I study of frequently administered carboplatin with recombinant human granulocyte colony-stimulating factor (filgrastim) has been performed in patients with newly diagnosed epithelial ovarian cancer. Recombinant human granulocyte colony-stimulating factor was administered at a dose of 5 micrograms/kg/d for days 1 through 12 after carboplatin treatment. Carboplatin doses were calculated using a pharmacokinetic formula on an area under the curve (AUC) basis. Four doses of carboplatin were planned for each patient. The first cohort of patients received an AUC of 5 mg/mL x min every 3 weeks. Subsequently four additional cohorts received AUCs of 5, 7, 9, and 8 every 2 weeks. Non-hematologic toxicities were mild and not significant. The dose-limiting toxicity was thrombocytopenia and occurred at an AUC of 9. Most patients could complete treatment at an AUC of 7. Results for AUC 8 are awaited. Complete and partial responses were seen in most patients at all dose levels.