All patients receive induction therapy consisting of 1 to 2 courses of mobilization therapy. Subcutaneous filgrastim (G-CSF) is given beginning 24 hours after induction dose. Following induction therapy, peripheral blood stem cells (PBSC) are harvested. After patients receive high dose paclitaxel and carboplatin chemotherapy, a portion of the PBSC are reinfused. When patients recover from the paclitaxel/carboplatin chemotherapy the administration of topotecan and etoposide phosphate begins. Topotecan is administered, as a 72 hour continuous infusion, according to a dose escalation schedule with a fixed dose of etoposide phosphate. A second portion of PBSC are reinfused after topotecan/etoposide phosphate chemotherapy. A course of thiotepa is given along with the final portion of PBSC after treatment with topotecan and etoposide phosphate.