Trial of Lapatinib and Weekly Paclitaxel for Advanced Urothelial Cancer

"Lapatinib comes in tablet form and is taken by mouth at a dose of 1,000 mg every day. Paclitaxel will be given through the vein (IV) at a dose of 80 mg/m2 on days 1, 8, and 15 at each 28 day cycle. If cancer does not progress and study treatment can be tolerated after 6 cycles of paclitaxel and lapatinib, paclitaxel will be stopped and lapatinib will continue until disease progression, side effects cannot be tolerated, participant is removed from or withdraws from study, or for other reasons.~Subjects with locally advanced disease who respond to treatment and are felt to be appropriate for local therapy may proceed to receive local therapy as deemed appropriate by the managing physician after a minimum of 6 cycles or upon achieving complete remission followed by an additional 2 cycles. Subjects who proceed to receive local therapy will be removed from protocol therapy. Subjects who elect not to receive or are not candidates for local therapy may continue treatment on protocol."