Beginning no sooner than 14 weeks from the start of the first course of chemotherapy, stable and responding patients receive high dose paclitaxel, carboplatin, and ifosfamide over 5 days, followed 2 days later with one-fourth of the allotted stem cells, with the remaining allotment infused the following day. G-CSF is given for granulocyte support. Groups of 3-6 patients are treated with escalating doses of paclitaxel until the maximum tolerated dose for this regimen is determined.