- Drug interactions and cytotoxic effects of paclitaxel in combination with carboplatin, epirubicin, gemcitabine or vinorelbine in breast cancer cell lines and tumor samples. Konecny, G., Untch, M., Slamon, D., Beryt, M., Kahlert, S., Felber, M., Langer, E., Lude, S., Hepp, H., Pegram, M. Breast Cancer Res. Treat. (2001)