Patients receive gemcitabine IV over 10 minutes and doxorubicin IV over 15 minutes for 5 doses on weeks 1, 3, 5, 7, and 9. Filgrastim (G-CSF) is given subcutaneously on days 3 through 10 of each 2-week course. On week 11, patients receive paclitaxel and carboplatin IV over 1 hour weekly for 12 weeks.